commit d0912a019fc9e0d3dcedd974f67e682dbc2c1426 Author: Alibek Omarov Date: Wed Jul 17 00:57:45 2024 +0300 ffplay: fork from n6.1.1 ffmpeg tag diff --git a/cmdutils.c b/cmdutils.c new file mode 100644 index 0000000..156c138 --- /dev/null +++ b/cmdutils.c @@ -0,0 +1,1064 @@ +/* + * Various utilities for command line tools + * Copyright (c) 2000-2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include + +/* Include only the enabled headers since some compilers (namely, Sun + Studio) will not omit unused inline functions and create undefined + references to libraries that are not being built. */ + +#include "config.h" +#include "compat/va_copy.h" +#include "libavformat/avformat.h" +#include "libswscale/swscale.h" +#include "libswscale/version.h" +#include "libswresample/swresample.h" +#include "libavutil/avassert.h" +#include "libavutil/avstring.h" +#include "libavutil/channel_layout.h" +#include "libavutil/display.h" +#include "libavutil/getenv_utf8.h" +#include "libavutil/mathematics.h" +#include "libavutil/imgutils.h" +#include "libavutil/libm.h" +#include "libavutil/parseutils.h" +#include "libavutil/eval.h" +#include "libavutil/dict.h" +#include "libavutil/opt.h" +#include "cmdutils.h" +#include "fopen_utf8.h" +#include "opt_common.h" +#ifdef _WIN32 +#include +#include "compat/w32dlfcn.h" +#endif + +AVDictionary *sws_dict; +AVDictionary *swr_opts; +AVDictionary *format_opts, *codec_opts; + +int hide_banner = 0; + +void uninit_opts(void) +{ + av_dict_free(&swr_opts); + av_dict_free(&sws_dict); + av_dict_free(&format_opts); + av_dict_free(&codec_opts); +} + +void log_callback_help(void *ptr, int level, const char *fmt, va_list vl) +{ + vfprintf(stdout, fmt, vl); +} + +void init_dynload(void) +{ +#if HAVE_SETDLLDIRECTORY && defined(_WIN32) + /* Calling SetDllDirectory with the empty string (but not NULL) removes the + * current working directory from the DLL search path as a security pre-caution. */ + SetDllDirectory(""); +#endif +} + +int parse_number(const char *context, const char *numstr, int type, + double min, double max, double *dst) +{ + char *tail; + const char *error; + double d = av_strtod(numstr, &tail); + if (*tail) + error = "Expected number for %s but found: %s\n"; + else if (d < min || d > max) + error = "The value for %s was %s which is not within %f - %f\n"; + else if (type == OPT_INT64 && (int64_t)d != d) + error = "Expected int64 for %s but found %s\n"; + else if (type == OPT_INT && (int)d != d) + error = "Expected int for %s but found %s\n"; + else { + *dst = d; + return 0; + } + + av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max); + return AVERROR(EINVAL); +} + +void show_help_options(const OptionDef *options, const char *msg, int req_flags, + int rej_flags, int alt_flags) +{ + const OptionDef *po; + int first; + + first = 1; + for (po = options; po->name; po++) { + char buf[128]; + + if (((po->flags & req_flags) != req_flags) || + (alt_flags && !(po->flags & alt_flags)) || + (po->flags & rej_flags)) + continue; + + if (first) { + printf("%s\n", msg); + first = 0; + } + av_strlcpy(buf, po->name, sizeof(buf)); + if (po->argname) { + av_strlcat(buf, " ", sizeof(buf)); + av_strlcat(buf, po->argname, sizeof(buf)); + } + printf("-%-17s %s\n", buf, po->help); + } + printf("\n"); +} + +void show_help_children(const AVClass *class, int flags) +{ + void *iter = NULL; + const AVClass *child; + if (class->option) { + av_opt_show2(&class, NULL, flags, 0); + printf("\n"); + } + + while (child = av_opt_child_class_iterate(class, &iter)) + show_help_children(child, flags); +} + +static const OptionDef *find_option(const OptionDef *po, const char *name) +{ + while (po->name) { + const char *end; + if (av_strstart(name, po->name, &end) && (!*end || *end == ':')) + break; + po++; + } + return po; +} + +/* _WIN32 means using the windows libc - cygwin doesn't define that + * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while + * it doesn't provide the actual command line via GetCommandLineW(). */ +#if HAVE_COMMANDLINETOARGVW && defined(_WIN32) +#include +/* Will be leaked on exit */ +static char** win32_argv_utf8 = NULL; +static int win32_argc = 0; + +/** + * Prepare command line arguments for executable. + * For Windows - perform wide-char to UTF-8 conversion. + * Input arguments should be main() function arguments. + * @param argc_ptr Arguments number (including executable) + * @param argv_ptr Arguments list. + */ +static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) +{ + char *argstr_flat; + wchar_t **argv_w; + int i, buffsize = 0, offset = 0; + + if (win32_argv_utf8) { + *argc_ptr = win32_argc; + *argv_ptr = win32_argv_utf8; + return; + } + + win32_argc = 0; + argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc); + if (win32_argc <= 0 || !argv_w) + return; + + /* determine the UTF-8 buffer size (including NULL-termination symbols) */ + for (i = 0; i < win32_argc; i++) + buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, + NULL, 0, NULL, NULL); + + win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize); + argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1); + if (!win32_argv_utf8) { + LocalFree(argv_w); + return; + } + + for (i = 0; i < win32_argc; i++) { + win32_argv_utf8[i] = &argstr_flat[offset]; + offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, + &argstr_flat[offset], + buffsize - offset, NULL, NULL); + } + win32_argv_utf8[i] = NULL; + LocalFree(argv_w); + + *argc_ptr = win32_argc; + *argv_ptr = win32_argv_utf8; +} +#else +static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) +{ + /* nothing to do */ +} +#endif /* HAVE_COMMANDLINETOARGVW */ + +static int write_option(void *optctx, const OptionDef *po, const char *opt, + const char *arg) +{ + /* new-style options contain an offset into optctx, old-style address of + * a global var*/ + void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? + (uint8_t *)optctx + po->u.off : po->u.dst_ptr; + int *dstcount; + double num; + int ret; + + if (po->flags & OPT_SPEC) { + SpecifierOpt **so = dst; + char *p = strchr(opt, ':'); + char *str; + + dstcount = (int *)(so + 1); + ret = grow_array((void**)so, sizeof(**so), dstcount, *dstcount + 1); + if (ret < 0) + return ret; + + str = av_strdup(p ? p + 1 : ""); + if (!str) + return AVERROR(ENOMEM); + (*so)[*dstcount - 1].specifier = str; + dst = &(*so)[*dstcount - 1].u; + } + + if (po->flags & OPT_STRING) { + char *str; + str = av_strdup(arg); + av_freep(dst); + if (!str) + return AVERROR(ENOMEM); + *(char **)dst = str; + } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) { + ret = parse_number(opt, arg, OPT_INT64, INT_MIN, INT_MAX, &num); + if (ret < 0) + return ret; + + *(int *)dst = num; + } else if (po->flags & OPT_INT64) { + ret = parse_number(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX, &num); + if (ret < 0) + return ret; + + *(int64_t *)dst = num; + } else if (po->flags & OPT_TIME) { + ret = av_parse_time(dst, arg, 1); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, "Invalid duration for option %s: %s\n", + opt, arg); + return ret; + } + } else if (po->flags & OPT_FLOAT) { + ret = parse_number(opt, arg, OPT_FLOAT, -INFINITY, INFINITY, &num); + if (ret < 0) + return ret; + + *(float *)dst = num; + } else if (po->flags & OPT_DOUBLE) { + ret = parse_number(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY, &num); + if (ret < 0) + return ret; + + *(double *)dst = num; + } else if (po->u.func_arg) { + int ret = po->u.func_arg(optctx, opt, arg); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, + "Failed to set value '%s' for option '%s': %s\n", + arg, opt, av_err2str(ret)); + return ret; + } + } + if (po->flags & OPT_EXIT) + return AVERROR_EXIT; + + return 0; +} + +int parse_option(void *optctx, const char *opt, const char *arg, + const OptionDef *options) +{ + static const OptionDef opt_avoptions = { + .name = "AVOption passthrough", + .flags = HAS_ARG, + .u.func_arg = opt_default, + }; + + const OptionDef *po; + int ret; + + po = find_option(options, opt); + if (!po->name && opt[0] == 'n' && opt[1] == 'o') { + /* handle 'no' bool option */ + po = find_option(options, opt + 2); + if ((po->name && (po->flags & OPT_BOOL))) + arg = "0"; + } else if (po->flags & OPT_BOOL) + arg = "1"; + + if (!po->name) + po = &opt_avoptions; + if (!po->name) { + av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt); + return AVERROR(EINVAL); + } + if (po->flags & HAS_ARG && !arg) { + av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt); + return AVERROR(EINVAL); + } + + ret = write_option(optctx, po, opt, arg); + if (ret < 0) + return ret; + + return !!(po->flags & HAS_ARG); +} + +int parse_options(void *optctx, int argc, char **argv, const OptionDef *options, + int (*parse_arg_function)(void *, const char*)) +{ + const char *opt; + int optindex, handleoptions = 1, ret; + + /* perform system-dependent conversions for arguments list */ + prepare_app_arguments(&argc, &argv); + + /* parse options */ + optindex = 1; + while (optindex < argc) { + opt = argv[optindex++]; + + if (handleoptions && opt[0] == '-' && opt[1] != '\0') { + if (opt[1] == '-' && opt[2] == '\0') { + handleoptions = 0; + continue; + } + opt++; + + if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0) + return ret; + optindex += ret; + } else { + if (parse_arg_function) { + ret = parse_arg_function(optctx, opt); + if (ret < 0) + return ret; + } + } + } + + return 0; +} + +int parse_optgroup(void *optctx, OptionGroup *g) +{ + int i, ret; + + av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n", + g->group_def->name, g->arg); + + for (i = 0; i < g->nb_opts; i++) { + Option *o = &g->opts[i]; + + if (g->group_def->flags && + !(g->group_def->flags & o->opt->flags)) { + av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to " + "%s %s -- you are trying to apply an input option to an " + "output file or vice versa. Move this option before the " + "file it belongs to.\n", o->key, o->opt->help, + g->group_def->name, g->arg); + return AVERROR(EINVAL); + } + + av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n", + o->key, o->opt->help, o->val); + + ret = write_option(optctx, o->opt, o->key, o->val); + if (ret < 0) + return ret; + } + + av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n"); + + return 0; +} + +int locate_option(int argc, char **argv, const OptionDef *options, + const char *optname) +{ + const OptionDef *po; + int i; + + for (i = 1; i < argc; i++) { + const char *cur_opt = argv[i]; + + if (*cur_opt++ != '-') + continue; + + po = find_option(options, cur_opt); + if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o') + po = find_option(options, cur_opt + 2); + + if ((!po->name && !strcmp(cur_opt, optname)) || + (po->name && !strcmp(optname, po->name))) + return i; + + if (!po->name || po->flags & HAS_ARG) + i++; + } + return 0; +} + +static void dump_argument(FILE *report_file, const char *a) +{ + const unsigned char *p; + + for (p = a; *p; p++) + if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') || + *p == '_' || (*p >= 'a' && *p <= 'z'))) + break; + if (!*p) { + fputs(a, report_file); + return; + } + fputc('"', report_file); + for (p = a; *p; p++) { + if (*p == '\\' || *p == '"' || *p == '$' || *p == '`') + fprintf(report_file, "\\%c", *p); + else if (*p < ' ' || *p > '~') + fprintf(report_file, "\\x%02x", *p); + else + fputc(*p, report_file); + } + fputc('"', report_file); +} + +static void check_options(const OptionDef *po) +{ + while (po->name) { + if (po->flags & OPT_PERFILE) + av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT)); + po++; + } +} + +void parse_loglevel(int argc, char **argv, const OptionDef *options) +{ + int idx = locate_option(argc, argv, options, "loglevel"); + char *env; + + check_options(options); + + if (!idx) + idx = locate_option(argc, argv, options, "v"); + if (idx && argv[idx + 1]) + opt_loglevel(NULL, "loglevel", argv[idx + 1]); + idx = locate_option(argc, argv, options, "report"); + env = getenv_utf8("FFREPORT"); + if (env || idx) { + FILE *report_file = NULL; + init_report(env, &report_file); + if (report_file) { + int i; + fprintf(report_file, "Command line:\n"); + for (i = 0; i < argc; i++) { + dump_argument(report_file, argv[i]); + fputc(i < argc - 1 ? ' ' : '\n', report_file); + } + fflush(report_file); + } + } + freeenv_utf8(env); + idx = locate_option(argc, argv, options, "hide_banner"); + if (idx) + hide_banner = 1; +} + +static const AVOption *opt_find(void *obj, const char *name, const char *unit, + int opt_flags, int search_flags) +{ + const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags); + if(o && !o->flags) + return NULL; + return o; +} + +#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0 +int opt_default(void *optctx, const char *opt, const char *arg) +{ + const AVOption *o; + int consumed = 0; + char opt_stripped[128]; + const char *p; + const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(); +#if CONFIG_SWSCALE + const AVClass *sc = sws_get_class(); +#endif +#if CONFIG_SWRESAMPLE + const AVClass *swr_class = swr_get_class(); +#endif + + if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug")) + av_log_set_level(AV_LOG_DEBUG); + + if (!(p = strchr(opt, ':'))) + p = opt + strlen(opt); + av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1)); + + if ((o = opt_find(&cc, opt_stripped, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) || + ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') && + (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) { + av_dict_set(&codec_opts, opt, arg, FLAGS); + consumed = 1; + } + if ((o = opt_find(&fc, opt, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { + av_dict_set(&format_opts, opt, arg, FLAGS); + if (consumed) + av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt); + consumed = 1; + } +#if CONFIG_SWSCALE + if (!consumed && (o = opt_find(&sc, opt, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { + if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") || + !strcmp(opt, "dstw") || !strcmp(opt, "dsth") || + !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) { + av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n"); + return AVERROR(EINVAL); + } + av_dict_set(&sws_dict, opt, arg, FLAGS); + + consumed = 1; + } +#else + if (!consumed && !strcmp(opt, "sws_flags")) { + av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg); + consumed = 1; + } +#endif +#if CONFIG_SWRESAMPLE + if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { + av_dict_set(&swr_opts, opt, arg, FLAGS); + consumed = 1; + } +#endif + + if (consumed) + return 0; + return AVERROR_OPTION_NOT_FOUND; +} + +/* + * Check whether given option is a group separator. + * + * @return index of the group definition that matched or -1 if none + */ +static int match_group_separator(const OptionGroupDef *groups, int nb_groups, + const char *opt) +{ + int i; + + for (i = 0; i < nb_groups; i++) { + const OptionGroupDef *p = &groups[i]; + if (p->sep && !strcmp(p->sep, opt)) + return i; + } + + return -1; +} + +/* + * Finish parsing an option group. + * + * @param group_idx which group definition should this group belong to + * @param arg argument of the group delimiting option + */ +static int finish_group(OptionParseContext *octx, int group_idx, + const char *arg) +{ + OptionGroupList *l = &octx->groups[group_idx]; + OptionGroup *g; + int ret; + + ret = GROW_ARRAY(l->groups, l->nb_groups); + if (ret < 0) + return ret; + + g = &l->groups[l->nb_groups - 1]; + + *g = octx->cur_group; + g->arg = arg; + g->group_def = l->group_def; + g->sws_dict = sws_dict; + g->swr_opts = swr_opts; + g->codec_opts = codec_opts; + g->format_opts = format_opts; + + codec_opts = NULL; + format_opts = NULL; + sws_dict = NULL; + swr_opts = NULL; + + memset(&octx->cur_group, 0, sizeof(octx->cur_group)); + + return ret; +} + +/* + * Add an option instance to currently parsed group. + */ +static int add_opt(OptionParseContext *octx, const OptionDef *opt, + const char *key, const char *val) +{ + int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET)); + OptionGroup *g = global ? &octx->global_opts : &octx->cur_group; + int ret; + + ret = GROW_ARRAY(g->opts, g->nb_opts); + if (ret < 0) + return ret; + + g->opts[g->nb_opts - 1].opt = opt; + g->opts[g->nb_opts - 1].key = key; + g->opts[g->nb_opts - 1].val = val; + + return 0; +} + +static int init_parse_context(OptionParseContext *octx, + const OptionGroupDef *groups, int nb_groups) +{ + static const OptionGroupDef global_group = { "global" }; + int i; + + memset(octx, 0, sizeof(*octx)); + + octx->nb_groups = nb_groups; + octx->groups = av_calloc(octx->nb_groups, sizeof(*octx->groups)); + if (!octx->groups) + return AVERROR(ENOMEM); + + for (i = 0; i < octx->nb_groups; i++) + octx->groups[i].group_def = &groups[i]; + + octx->global_opts.group_def = &global_group; + octx->global_opts.arg = ""; + + return 0; +} + +void uninit_parse_context(OptionParseContext *octx) +{ + int i, j; + + for (i = 0; i < octx->nb_groups; i++) { + OptionGroupList *l = &octx->groups[i]; + + for (j = 0; j < l->nb_groups; j++) { + av_freep(&l->groups[j].opts); + av_dict_free(&l->groups[j].codec_opts); + av_dict_free(&l->groups[j].format_opts); + + av_dict_free(&l->groups[j].sws_dict); + av_dict_free(&l->groups[j].swr_opts); + } + av_freep(&l->groups); + } + av_freep(&octx->groups); + + av_freep(&octx->cur_group.opts); + av_freep(&octx->global_opts.opts); + + uninit_opts(); +} + +int split_commandline(OptionParseContext *octx, int argc, char *argv[], + const OptionDef *options, + const OptionGroupDef *groups, int nb_groups) +{ + int ret; + int optindex = 1; + int dashdash = -2; + + /* perform system-dependent conversions for arguments list */ + prepare_app_arguments(&argc, &argv); + + ret = init_parse_context(octx, groups, nb_groups); + if (ret < 0) + return ret; + + av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n"); + + while (optindex < argc) { + const char *opt = argv[optindex++], *arg; + const OptionDef *po; + int ret; + + av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt); + + if (opt[0] == '-' && opt[1] == '-' && !opt[2]) { + dashdash = optindex; + continue; + } + /* unnamed group separators, e.g. output filename */ + if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) { + ret = finish_group(octx, 0, opt); + if (ret < 0) + return ret; + + av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name); + continue; + } + opt++; + +#define GET_ARG(arg) \ +do { \ + arg = argv[optindex++]; \ + if (!arg) { \ + av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\ + return AVERROR(EINVAL); \ + } \ +} while (0) + + /* named group separators, e.g. -i */ + if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) { + GET_ARG(arg); + ret = finish_group(octx, ret, arg); + if (ret < 0) + return ret; + + av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n", + groups[ret].name, arg); + continue; + } + + /* normal options */ + po = find_option(options, opt); + if (po->name) { + if (po->flags & OPT_EXIT) { + /* optional argument, e.g. -h */ + arg = argv[optindex++]; + } else if (po->flags & HAS_ARG) { + GET_ARG(arg); + } else { + arg = "1"; + } + + ret = add_opt(octx, po, opt, arg); + if (ret < 0) + return ret; + + av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with " + "argument '%s'.\n", po->name, po->help, arg); + continue; + } + + /* AVOptions */ + if (argv[optindex]) { + ret = opt_default(NULL, opt, argv[optindex]); + if (ret >= 0) { + av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with " + "argument '%s'.\n", opt, argv[optindex]); + optindex++; + continue; + } else if (ret != AVERROR_OPTION_NOT_FOUND) { + av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' " + "with argument '%s'.\n", opt, argv[optindex]); + return ret; + } + } + + /* boolean -nofoo options */ + if (opt[0] == 'n' && opt[1] == 'o' && + (po = find_option(options, opt + 2)) && + po->name && po->flags & OPT_BOOL) { + ret = add_opt(octx, po, opt, "0"); + if (ret < 0) + return ret; + + av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with " + "argument 0.\n", po->name, po->help); + continue; + } + + av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt); + return AVERROR_OPTION_NOT_FOUND; + } + + if (octx->cur_group.nb_opts || codec_opts || format_opts) + av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the " + "command: may be ignored.\n"); + + av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n"); + + return 0; +} + +void print_error(const char *filename, int err) +{ + av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, av_err2str(err)); +} + +int read_yesno(void) +{ + int c = getchar(); + int yesno = (av_toupper(c) == 'Y'); + + while (c != '\n' && c != EOF) + c = getchar(); + + return yesno; +} + +FILE *get_preset_file(char *filename, size_t filename_size, + const char *preset_name, int is_path, + const char *codec_name) +{ + FILE *f = NULL; + int i; +#if HAVE_GETMODULEHANDLE && defined(_WIN32) + char *datadir = NULL; +#endif + char *env_home = getenv_utf8("HOME"); + char *env_ffmpeg_datadir = getenv_utf8("FFMPEG_DATADIR"); + const char *base[3] = { env_ffmpeg_datadir, + env_home, /* index=1(HOME) is special: search in a .ffmpeg subfolder */ + FFMPEG_DATADIR, }; + + if (is_path) { + av_strlcpy(filename, preset_name, filename_size); + f = fopen_utf8(filename, "r"); + } else { +#if HAVE_GETMODULEHANDLE && defined(_WIN32) + wchar_t *datadir_w = get_module_filename(NULL); + base[2] = NULL; + + if (wchartoutf8(datadir_w, &datadir)) + datadir = NULL; + av_free(datadir_w); + + if (datadir) + { + char *ls; + for (ls = datadir; *ls; ls++) + if (*ls == '\\') *ls = '/'; + + if (ls = strrchr(datadir, '/')) + { + ptrdiff_t datadir_len = ls - datadir; + size_t desired_size = datadir_len + strlen("/ffpresets") + 1; + char *new_datadir = av_realloc_array( + datadir, desired_size, sizeof *datadir); + if (new_datadir) { + datadir = new_datadir; + datadir[datadir_len] = 0; + strncat(datadir, "/ffpresets", desired_size - 1 - datadir_len); + base[2] = datadir; + } + } + } +#endif + for (i = 0; i < 3 && !f; i++) { + if (!base[i]) + continue; + snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], + i != 1 ? "" : "/.ffmpeg", preset_name); + f = fopen_utf8(filename, "r"); + if (!f && codec_name) { + snprintf(filename, filename_size, + "%s%s/%s-%s.ffpreset", + base[i], i != 1 ? "" : "/.ffmpeg", codec_name, + preset_name); + f = fopen_utf8(filename, "r"); + } + } + } + +#if HAVE_GETMODULEHANDLE && defined(_WIN32) + av_free(datadir); +#endif + freeenv_utf8(env_ffmpeg_datadir); + freeenv_utf8(env_home); + return f; +} + +int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec) +{ + int ret = avformat_match_stream_specifier(s, st, spec); + if (ret < 0) + av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec); + return ret; +} + +int filter_codec_opts(const AVDictionary *opts, enum AVCodecID codec_id, + AVFormatContext *s, AVStream *st, const AVCodec *codec, + AVDictionary **dst) +{ + AVDictionary *ret = NULL; + const AVDictionaryEntry *t = NULL; + int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM + : AV_OPT_FLAG_DECODING_PARAM; + char prefix = 0; + const AVClass *cc = avcodec_get_class(); + + if (!codec) + codec = s->oformat ? avcodec_find_encoder(codec_id) + : avcodec_find_decoder(codec_id); + + switch (st->codecpar->codec_type) { + case AVMEDIA_TYPE_VIDEO: + prefix = 'v'; + flags |= AV_OPT_FLAG_VIDEO_PARAM; + break; + case AVMEDIA_TYPE_AUDIO: + prefix = 'a'; + flags |= AV_OPT_FLAG_AUDIO_PARAM; + break; + case AVMEDIA_TYPE_SUBTITLE: + prefix = 's'; + flags |= AV_OPT_FLAG_SUBTITLE_PARAM; + break; + } + + while (t = av_dict_iterate(opts, t)) { + const AVClass *priv_class; + char *p = strchr(t->key, ':'); + + /* check stream specification in opt name */ + if (p) { + int err = check_stream_specifier(s, st, p + 1); + if (err < 0) { + av_dict_free(&ret); + return err; + } else if (!err) + continue; + + *p = 0; + } + + if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) || + !codec || + ((priv_class = codec->priv_class) && + av_opt_find(&priv_class, t->key, NULL, flags, + AV_OPT_SEARCH_FAKE_OBJ))) + av_dict_set(&ret, t->key, t->value, 0); + else if (t->key[0] == prefix && + av_opt_find(&cc, t->key + 1, NULL, flags, + AV_OPT_SEARCH_FAKE_OBJ)) + av_dict_set(&ret, t->key + 1, t->value, 0); + + if (p) + *p = ':'; + } + + *dst = ret; + return 0; +} + +int setup_find_stream_info_opts(AVFormatContext *s, + AVDictionary *codec_opts, + AVDictionary ***dst) +{ + int ret; + AVDictionary **opts; + + *dst = NULL; + + if (!s->nb_streams) + return 0; + + opts = av_calloc(s->nb_streams, sizeof(*opts)); + if (!opts) + return AVERROR(ENOMEM); + + for (int i = 0; i < s->nb_streams; i++) { + ret = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id, + s, s->streams[i], NULL, &opts[i]); + if (ret < 0) + goto fail; + } + *dst = opts; + return 0; +fail: + for (int i = 0; i < s->nb_streams; i++) + av_dict_free(&opts[i]); + av_freep(&opts); + return ret; +} + +int grow_array(void **array, int elem_size, int *size, int new_size) +{ + if (new_size >= INT_MAX / elem_size) { + av_log(NULL, AV_LOG_ERROR, "Array too big.\n"); + return AVERROR(ERANGE); + } + if (*size < new_size) { + uint8_t *tmp = av_realloc_array(*array, new_size, elem_size); + if (!tmp) + return AVERROR(ENOMEM); + memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size); + *size = new_size; + *array = tmp; + return 0; + } + return 0; +} + +void *allocate_array_elem(void *ptr, size_t elem_size, int *nb_elems) +{ + void *new_elem; + + if (!(new_elem = av_mallocz(elem_size)) || + av_dynarray_add_nofree(ptr, nb_elems, new_elem) < 0) + return NULL; + return new_elem; +} + +double get_rotation(const int32_t *displaymatrix) +{ + double theta = 0; + if (displaymatrix) + theta = -round(av_display_rotation_get((int32_t*) displaymatrix)); + + theta -= 360*floor(theta/360 + 0.9/360); + + if (fabs(theta - 90*round(theta/90)) > 2) + av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n" + "If you want to help, upload a sample " + "of this file to https://streams.videolan.org/upload/ " + "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)"); + + return theta; +} diff --git a/cmdutils.h b/cmdutils.h new file mode 100644 index 0000000..8b67d82 --- /dev/null +++ b/cmdutils.h @@ -0,0 +1,422 @@ +/* + * Various utilities for command line tools + * copyright (c) 2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef FFTOOLS_CMDUTILS_H +#define FFTOOLS_CMDUTILS_H + +#include + +#include "config.h" +#include "libavcodec/avcodec.h" +#include "libavfilter/avfilter.h" +#include "libavformat/avformat.h" +#include "libswscale/swscale.h" + +#ifdef _WIN32 +#undef main /* We don't want SDL to override our main() */ +#endif + +/** + * program name, defined by the program for show_version(). + */ +extern const char program_name[]; + +/** + * program birth year, defined by the program for show_banner() + */ +extern const int program_birth_year; + +extern AVDictionary *sws_dict; +extern AVDictionary *swr_opts; +extern AVDictionary *format_opts, *codec_opts; +extern int hide_banner; + +/** + * Initialize dynamic library loading + */ +void init_dynload(void); + +/** + * Uninitialize the cmdutils option system, in particular + * free the *_opts contexts and their contents. + */ +void uninit_opts(void); + +/** + * Trivial log callback. + * Only suitable for opt_help and similar since it lacks prefix handling. + */ +void log_callback_help(void* ptr, int level, const char* fmt, va_list vl); + +/** + * Fallback for options that are not explicitly handled, these will be + * parsed through AVOptions. + */ +int opt_default(void *optctx, const char *opt, const char *arg); + +/** + * Limit the execution time. + */ +int opt_timelimit(void *optctx, const char *opt, const char *arg); + +/** + * Parse a string and return its corresponding value as a double. + * + * @param context the context of the value to be set (e.g. the + * corresponding command line option name) + * @param numstr the string to be parsed + * @param type the type (OPT_INT64 or OPT_FLOAT) as which the + * string should be parsed + * @param min the minimum valid accepted value + * @param max the maximum valid accepted value + */ +int parse_number(const char *context, const char *numstr, int type, + double min, double max, double *dst); + +typedef struct SpecifierOpt { + char *specifier; /**< stream/chapter/program/... specifier */ + union { + uint8_t *str; + int i; + int64_t i64; + uint64_t ui64; + float f; + double dbl; + } u; +} SpecifierOpt; + +typedef struct OptionDef { + const char *name; + int flags; +#define HAS_ARG 0x0001 +#define OPT_BOOL 0x0002 +#define OPT_EXPERT 0x0004 +#define OPT_STRING 0x0008 +#define OPT_VIDEO 0x0010 +#define OPT_AUDIO 0x0020 +#define OPT_INT 0x0080 +#define OPT_FLOAT 0x0100 +#define OPT_SUBTITLE 0x0200 +#define OPT_INT64 0x0400 +#define OPT_EXIT 0x0800 +#define OPT_DATA 0x1000 +#define OPT_PERFILE 0x2000 /* the option is per-file (currently ffmpeg-only). + implied by OPT_OFFSET or OPT_SPEC */ +#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */ +#define OPT_SPEC 0x8000 /* option is to be stored in an array of SpecifierOpt. + Implies OPT_OFFSET. Next element after the offset is + an int containing element count in the array. */ +#define OPT_TIME 0x10000 +#define OPT_DOUBLE 0x20000 +#define OPT_INPUT 0x40000 +#define OPT_OUTPUT 0x80000 + union { + void *dst_ptr; + int (*func_arg)(void *, const char *, const char *); + size_t off; + } u; + const char *help; + const char *argname; +} OptionDef; + +/** + * Print help for all options matching specified flags. + * + * @param options a list of options + * @param msg title of this group. Only printed if at least one option matches. + * @param req_flags print only options which have all those flags set. + * @param rej_flags don't print options which have any of those flags set. + * @param alt_flags print only options that have at least one of those flags set + */ +void show_help_options(const OptionDef *options, const char *msg, int req_flags, + int rej_flags, int alt_flags); + +/** + * Show help for all options with given flags in class and all its + * children. + */ +void show_help_children(const AVClass *class, int flags); + +/** + * Per-fftool specific help handler. Implemented in each + * fftool, called by show_help(). + */ +void show_help_default(const char *opt, const char *arg); + +/** + * Parse the command line arguments. + * + * @param optctx an opaque options context + * @param argc number of command line arguments + * @param argv values of command line arguments + * @param options Array with the definitions required to interpret every + * option of the form: -option_name [argument] + * @param parse_arg_function Name of the function called to process every + * argument without a leading option name flag. NULL if such arguments do + * not have to be processed. + */ +int parse_options(void *optctx, int argc, char **argv, const OptionDef *options, + int (* parse_arg_function)(void *optctx, const char*)); + +/** + * Parse one given option. + * + * @return on success 1 if arg was consumed, 0 otherwise; negative number on error + */ +int parse_option(void *optctx, const char *opt, const char *arg, + const OptionDef *options); + +/** + * An option extracted from the commandline. + * Cannot use AVDictionary because of options like -map which can be + * used multiple times. + */ +typedef struct Option { + const OptionDef *opt; + const char *key; + const char *val; +} Option; + +typedef struct OptionGroupDef { + /**< group name */ + const char *name; + /** + * Option to be used as group separator. Can be NULL for groups which + * are terminated by a non-option argument (e.g. ffmpeg output files) + */ + const char *sep; + /** + * Option flags that must be set on each option that is + * applied to this group + */ + int flags; +} OptionGroupDef; + +typedef struct OptionGroup { + const OptionGroupDef *group_def; + const char *arg; + + Option *opts; + int nb_opts; + + AVDictionary *codec_opts; + AVDictionary *format_opts; + AVDictionary *sws_dict; + AVDictionary *swr_opts; +} OptionGroup; + +/** + * A list of option groups that all have the same group type + * (e.g. input files or output files) + */ +typedef struct OptionGroupList { + const OptionGroupDef *group_def; + + OptionGroup *groups; + int nb_groups; +} OptionGroupList; + +typedef struct OptionParseContext { + OptionGroup global_opts; + + OptionGroupList *groups; + int nb_groups; + + /* parsing state */ + OptionGroup cur_group; +} OptionParseContext; + +/** + * Parse an options group and write results into optctx. + * + * @param optctx an app-specific options context. NULL for global options group + */ +int parse_optgroup(void *optctx, OptionGroup *g); + +/** + * Split the commandline into an intermediate form convenient for further + * processing. + * + * The commandline is assumed to be composed of options which either belong to a + * group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global + * (everything else). + * + * A group (defined by an OptionGroupDef struct) is a sequence of options + * terminated by either a group separator option (e.g. -i) or a parameter that + * is not an option (doesn't start with -). A group without a separator option + * must always be first in the supplied groups list. + * + * All options within the same group are stored in one OptionGroup struct in an + * OptionGroupList, all groups with the same group definition are stored in one + * OptionGroupList in OptionParseContext.groups. The order of group lists is the + * same as the order of group definitions. + */ +int split_commandline(OptionParseContext *octx, int argc, char *argv[], + const OptionDef *options, + const OptionGroupDef *groups, int nb_groups); + +/** + * Free all allocated memory in an OptionParseContext. + */ +void uninit_parse_context(OptionParseContext *octx); + +/** + * Find the '-loglevel' option in the command line args and apply it. + */ +void parse_loglevel(int argc, char **argv, const OptionDef *options); + +/** + * Return index of option opt in argv or 0 if not found. + */ +int locate_option(int argc, char **argv, const OptionDef *options, + const char *optname); + +/** + * Check if the given stream matches a stream specifier. + * + * @param s Corresponding format context. + * @param st Stream from s to be checked. + * @param spec A stream specifier of the [v|a|s|d]:[\] form. + * + * @return 1 if the stream matches, 0 if it doesn't, <0 on error + */ +int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec); + +/** + * Filter out options for given codec. + * + * Create a new options dictionary containing only the options from + * opts which apply to the codec with ID codec_id. + * + * @param opts dictionary to place options in + * @param codec_id ID of the codec that should be filtered for + * @param s Corresponding format context. + * @param st A stream from s for which the options should be filtered. + * @param codec The particular codec for which the options should be filtered. + * If null, the default one is looked up according to the codec id. + * @param dst a pointer to the created dictionary + * @return a non-negative number on success, a negative error code on failure + */ +int filter_codec_opts(const AVDictionary *opts, enum AVCodecID codec_id, + AVFormatContext *s, AVStream *st, const AVCodec *codec, + AVDictionary **dst); + +/** + * Setup AVCodecContext options for avformat_find_stream_info(). + * + * Create an array of dictionaries, one dictionary for each stream + * contained in s. + * Each dictionary will contain the options from codec_opts which can + * be applied to the corresponding stream codec context. + */ +int setup_find_stream_info_opts(AVFormatContext *s, + AVDictionary *codec_opts, + AVDictionary ***dst); + +/** + * Print an error message to stderr, indicating filename and a human + * readable description of the error code err. + * + * If strerror_r() is not available the use of this function in a + * multithreaded application may be unsafe. + * + * @see av_strerror() + */ +void print_error(const char *filename, int err); + +/** + * Print the program banner to stderr. The banner contents depend on the + * current version of the repository and of the libav* libraries used by + * the program. + */ +void show_banner(int argc, char **argv, const OptionDef *options); + +/** + * Return a positive value if a line read from standard input + * starts with [yY], otherwise return 0. + */ +int read_yesno(void); + +/** + * Get a file corresponding to a preset file. + * + * If is_path is non-zero, look for the file in the path preset_name. + * Otherwise search for a file named arg.ffpreset in the directories + * $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined + * at configuration time or in a "ffpresets" folder along the executable + * on win32, in that order. If no such file is found and + * codec_name is defined, then search for a file named + * codec_name-preset_name.avpreset in the above-mentioned directories. + * + * @param filename buffer where the name of the found filename is written + * @param filename_size size in bytes of the filename buffer + * @param preset_name name of the preset to search + * @param is_path tell if preset_name is a filename path + * @param codec_name name of the codec for which to look for the + * preset, may be NULL + */ +FILE *get_preset_file(char *filename, size_t filename_size, + const char *preset_name, int is_path, const char *codec_name); + +/** + * Realloc array to hold new_size elements of elem_size. + * + * @param array pointer to the array to reallocate, will be updated + * with a new pointer on success + * @param elem_size size in bytes of each element + * @param size new element count will be written here + * @param new_size number of elements to place in reallocated array + * @return a non-negative number on success, a negative error code on failure + */ +int grow_array(void **array, int elem_size, int *size, int new_size); + +/** + * Atomically add a new element to an array of pointers, i.e. allocate + * a new entry, reallocate the array of pointers and make the new last + * member of this array point to the newly allocated buffer. + * + * @param array array of pointers to reallocate + * @param elem_size size of the new element to allocate + * @param nb_elems pointer to the number of elements of the array array; + * *nb_elems will be incremented by one by this function. + * @return pointer to the newly allocated entry or NULL on failure + */ +void *allocate_array_elem(void *array, size_t elem_size, int *nb_elems); + +#define GROW_ARRAY(array, nb_elems)\ + grow_array((void**)&array, sizeof(*array), &nb_elems, nb_elems + 1) + +#define GET_PIX_FMT_NAME(pix_fmt)\ + const char *name = av_get_pix_fmt_name(pix_fmt); + +#define GET_CODEC_NAME(id)\ + const char *name = avcodec_descriptor_get(id)->name; + +#define GET_SAMPLE_FMT_NAME(sample_fmt)\ + const char *name = av_get_sample_fmt_name(sample_fmt) + +#define GET_SAMPLE_RATE_NAME(rate)\ + char name[16];\ + snprintf(name, sizeof(name), "%d", rate); + +double get_rotation(const int32_t *displaymatrix); + +#endif /* FFTOOLS_CMDUTILS_H */ diff --git a/ffplay.c b/ffplay.c new file mode 100644 index 0000000..d8c69e1 --- /dev/null +++ b/ffplay.c @@ -0,0 +1,3758 @@ +/* + * Copyright (c) 2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple media player based on the FFmpeg libraries + */ + +#include "config.h" +#include "config_components.h" +#include +#include +#include +#include +#include + +#include "libavutil/avstring.h" +#include "libavutil/channel_layout.h" +#include "libavutil/eval.h" +#include "libavutil/mathematics.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/dict.h" +#include "libavutil/fifo.h" +#include "libavutil/parseutils.h" +#include "libavutil/samplefmt.h" +#include "libavutil/time.h" +#include "libavutil/bprint.h" +#include "libavformat/avformat.h" +#include "libavdevice/avdevice.h" +#include "libswscale/swscale.h" +#include "libavutil/opt.h" +#include "libavutil/tx.h" +#include "libswresample/swresample.h" + +#include "libavfilter/avfilter.h" +#include "libavfilter/buffersink.h" +#include "libavfilter/buffersrc.h" + +#include +#include + +#include "cmdutils.h" +#include "opt_common.h" + +const char program_name[] = "ffplay"; +const int program_birth_year = 2003; + +#define MAX_QUEUE_SIZE (15 * 1024 * 1024) +#define MIN_FRAMES 25 +#define EXTERNAL_CLOCK_MIN_FRAMES 2 +#define EXTERNAL_CLOCK_MAX_FRAMES 10 + +/* Minimum SDL audio buffer size, in samples. */ +#define SDL_AUDIO_MIN_BUFFER_SIZE 512 +/* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */ +#define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30 + +/* Step size for volume control in dB */ +#define SDL_VOLUME_STEP (0.75) + +/* no AV sync correction is done if below the minimum AV sync threshold */ +#define AV_SYNC_THRESHOLD_MIN 0.04 +/* AV sync correction is done if above the maximum AV sync threshold */ +#define AV_SYNC_THRESHOLD_MAX 0.1 +/* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */ +#define AV_SYNC_FRAMEDUP_THRESHOLD 0.1 +/* no AV correction is done if too big error */ +#define AV_NOSYNC_THRESHOLD 10.0 + +/* maximum audio speed change to get correct sync */ +#define SAMPLE_CORRECTION_PERCENT_MAX 10 + +/* external clock speed adjustment constants for realtime sources based on buffer fullness */ +#define EXTERNAL_CLOCK_SPEED_MIN 0.900 +#define EXTERNAL_CLOCK_SPEED_MAX 1.010 +#define EXTERNAL_CLOCK_SPEED_STEP 0.001 + +/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ +#define AUDIO_DIFF_AVG_NB 20 + +/* polls for possible required screen refresh at least this often, should be less than 1/fps */ +#define REFRESH_RATE 0.01 + +/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ +/* TODO: We assume that a decoded and resampled frame fits into this buffer */ +#define SAMPLE_ARRAY_SIZE (8 * 65536) + +#define CURSOR_HIDE_DELAY 1000000 + +#define USE_ONEPASS_SUBTITLE_RENDER 1 + +typedef struct MyAVPacketList { + AVPacket *pkt; + int serial; +} MyAVPacketList; + +typedef struct PacketQueue { + AVFifo *pkt_list; + int nb_packets; + int size; + int64_t duration; + int abort_request; + int serial; + SDL_mutex *mutex; + SDL_cond *cond; +} PacketQueue; + +#define VIDEO_PICTURE_QUEUE_SIZE 3 +#define SUBPICTURE_QUEUE_SIZE 16 +#define SAMPLE_QUEUE_SIZE 9 +#define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)) + +typedef struct AudioParams { + int freq; + AVChannelLayout ch_layout; + enum AVSampleFormat fmt; + int frame_size; + int bytes_per_sec; +} AudioParams; + +typedef struct Clock { + double pts; /* clock base */ + double pts_drift; /* clock base minus time at which we updated the clock */ + double last_updated; + double speed; + int serial; /* clock is based on a packet with this serial */ + int paused; + int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */ +} Clock; + +typedef struct FrameData { + int64_t pkt_pos; +} FrameData; + +/* Common struct for handling all types of decoded data and allocated render buffers. */ +typedef struct Frame { + AVFrame *frame; + AVSubtitle sub; + int serial; + double pts; /* presentation timestamp for the frame */ + double duration; /* estimated duration of the frame */ + int64_t pos; /* byte position of the frame in the input file */ + int width; + int height; + int format; + AVRational sar; + int uploaded; + int flip_v; +} Frame; + +typedef struct FrameQueue { + Frame queue[FRAME_QUEUE_SIZE]; + int rindex; + int windex; + int size; + int max_size; + int keep_last; + int rindex_shown; + SDL_mutex *mutex; + SDL_cond *cond; + PacketQueue *pktq; +} FrameQueue; + +enum { + AV_SYNC_AUDIO_MASTER, /* default choice */ + AV_SYNC_VIDEO_MASTER, + AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ +}; + +typedef struct Decoder { + AVPacket *pkt; + PacketQueue *queue; + AVCodecContext *avctx; + int pkt_serial; + int finished; + int packet_pending; + SDL_cond *empty_queue_cond; + int64_t start_pts; + AVRational start_pts_tb; + int64_t next_pts; + AVRational next_pts_tb; + SDL_Thread *decoder_tid; +} Decoder; + +typedef struct VideoState { + SDL_Thread *read_tid; + const AVInputFormat *iformat; + int abort_request; + int force_refresh; + int paused; + int last_paused; + int queue_attachments_req; + int seek_req; + int seek_flags; + int64_t seek_pos; + int64_t seek_rel; + int read_pause_return; + AVFormatContext *ic; + int realtime; + + Clock audclk; + Clock vidclk; + Clock extclk; + + FrameQueue pictq; + FrameQueue subpq; + FrameQueue sampq; + + Decoder auddec; + Decoder viddec; + Decoder subdec; + + int audio_stream; + + int av_sync_type; + + double audio_clock; + int audio_clock_serial; + double audio_diff_cum; /* used for AV difference average computation */ + double audio_diff_avg_coef; + double audio_diff_threshold; + int audio_diff_avg_count; + AVStream *audio_st; + PacketQueue audioq; + int audio_hw_buf_size; + uint8_t *audio_buf; + uint8_t *audio_buf1; + unsigned int audio_buf_size; /* in bytes */ + unsigned int audio_buf1_size; + int audio_buf_index; /* in bytes */ + int audio_write_buf_size; + int audio_volume; + int muted; + struct AudioParams audio_src; + struct AudioParams audio_filter_src; + struct AudioParams audio_tgt; + struct SwrContext *swr_ctx; + int frame_drops_early; + int frame_drops_late; + + enum ShowMode { + SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB + } show_mode; + int16_t sample_array[SAMPLE_ARRAY_SIZE]; + int sample_array_index; + int last_i_start; + AVTXContext *rdft; + av_tx_fn rdft_fn; + int rdft_bits; + float *real_data; + AVComplexFloat *rdft_data; + int xpos; + double last_vis_time; + SDL_Texture *vis_texture; + SDL_Texture *sub_texture; + SDL_Texture *vid_texture; + + int subtitle_stream; + AVStream *subtitle_st; + PacketQueue subtitleq; + + double frame_timer; + double frame_last_returned_time; + double frame_last_filter_delay; + int video_stream; + AVStream *video_st; + PacketQueue videoq; + double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity + struct SwsContext *sub_convert_ctx; + int eof; + + char *filename; + int width, height, xleft, ytop; + int step; + + int vfilter_idx; + AVFilterContext *in_video_filter; // the first filter in the video chain + AVFilterContext *out_video_filter; // the last filter in the video chain + AVFilterContext *in_audio_filter; // the first filter in the audio chain + AVFilterContext *out_audio_filter; // the last filter in the audio chain + AVFilterGraph *agraph; // audio filter graph + + int last_video_stream, last_audio_stream, last_subtitle_stream; + + SDL_cond *continue_read_thread; +} VideoState; + +/* options specified by the user */ +static const AVInputFormat *file_iformat; +static const char *input_filename; +static const char *window_title; +static int default_width = 640; +static int default_height = 480; +static int screen_width = 0; +static int screen_height = 0; +static int screen_left = SDL_WINDOWPOS_CENTERED; +static int screen_top = SDL_WINDOWPOS_CENTERED; +static int audio_disable; +static int video_disable; +static int subtitle_disable; +static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0}; +static int seek_by_bytes = -1; +static float seek_interval = 10; +static int display_disable; +static int borderless; +static int alwaysontop; +static int startup_volume = 100; +static int show_status = -1; +static int av_sync_type = AV_SYNC_AUDIO_MASTER; +static int64_t start_time = AV_NOPTS_VALUE; +static int64_t duration = AV_NOPTS_VALUE; +static int fast = 0; +static int genpts = 0; +static int lowres = 0; +static int decoder_reorder_pts = -1; +static int autoexit; +static int exit_on_keydown; +static int exit_on_mousedown; +static int loop = 1; +static int framedrop = -1; +static int infinite_buffer = -1; +static enum ShowMode show_mode = SHOW_MODE_NONE; +static const char *audio_codec_name; +static const char *subtitle_codec_name; +static const char *video_codec_name; +double rdftspeed = 0.02; +static int64_t cursor_last_shown; +static int cursor_hidden = 0; +static const char **vfilters_list = NULL; +static int nb_vfilters = 0; +static char *afilters = NULL; +static int autorotate = 1; +static int find_stream_info = 1; +static int filter_nbthreads = 0; + +/* current context */ +static int is_full_screen; +static int64_t audio_callback_time; + +#define FF_QUIT_EVENT (SDL_USEREVENT + 2) + +static SDL_Window *window; +static SDL_Renderer *renderer; +static SDL_RendererInfo renderer_info = {0}; +static SDL_AudioDeviceID audio_dev; + +static const struct TextureFormatEntry { + enum AVPixelFormat format; + int texture_fmt; +} sdl_texture_format_map[] = { + { AV_PIX_FMT_RGB8, SDL_PIXELFORMAT_RGB332 }, + { AV_PIX_FMT_RGB444, SDL_PIXELFORMAT_RGB444 }, + { AV_PIX_FMT_RGB555, SDL_PIXELFORMAT_RGB555 }, + { AV_PIX_FMT_BGR555, SDL_PIXELFORMAT_BGR555 }, + { AV_PIX_FMT_RGB565, SDL_PIXELFORMAT_RGB565 }, + { AV_PIX_FMT_BGR565, SDL_PIXELFORMAT_BGR565 }, + { AV_PIX_FMT_RGB24, SDL_PIXELFORMAT_RGB24 }, + { AV_PIX_FMT_BGR24, SDL_PIXELFORMAT_BGR24 }, + { AV_PIX_FMT_0RGB32, SDL_PIXELFORMAT_RGB888 }, + { AV_PIX_FMT_0BGR32, SDL_PIXELFORMAT_BGR888 }, + { AV_PIX_FMT_NE(RGB0, 0BGR), SDL_PIXELFORMAT_RGBX8888 }, + { AV_PIX_FMT_NE(BGR0, 0RGB), SDL_PIXELFORMAT_BGRX8888 }, + { AV_PIX_FMT_RGB32, SDL_PIXELFORMAT_ARGB8888 }, + { AV_PIX_FMT_RGB32_1, SDL_PIXELFORMAT_RGBA8888 }, + { AV_PIX_FMT_BGR32, SDL_PIXELFORMAT_ABGR8888 }, + { AV_PIX_FMT_BGR32_1, SDL_PIXELFORMAT_BGRA8888 }, + { AV_PIX_FMT_YUV420P, SDL_PIXELFORMAT_IYUV }, + { AV_PIX_FMT_YUYV422, SDL_PIXELFORMAT_YUY2 }, + { AV_PIX_FMT_UYVY422, SDL_PIXELFORMAT_UYVY }, + { AV_PIX_FMT_NONE, SDL_PIXELFORMAT_UNKNOWN }, +}; + +static int opt_add_vfilter(void *optctx, const char *opt, const char *arg) +{ + int ret = GROW_ARRAY(vfilters_list, nb_vfilters); + if (ret < 0) + return ret; + + vfilters_list[nb_vfilters - 1] = arg; + return 0; +} + +static inline +int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, + enum AVSampleFormat fmt2, int64_t channel_count2) +{ + /* If channel count == 1, planar and non-planar formats are the same */ + if (channel_count1 == 1 && channel_count2 == 1) + return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); + else + return channel_count1 != channel_count2 || fmt1 != fmt2; +} + +static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) +{ + MyAVPacketList pkt1; + int ret; + + if (q->abort_request) + return -1; + + + pkt1.pkt = pkt; + pkt1.serial = q->serial; + + ret = av_fifo_write(q->pkt_list, &pkt1, 1); + if (ret < 0) + return ret; + q->nb_packets++; + q->size += pkt1.pkt->size + sizeof(pkt1); + q->duration += pkt1.pkt->duration; + /* XXX: should duplicate packet data in DV case */ + SDL_CondSignal(q->cond); + return 0; +} + +static int packet_queue_put(PacketQueue *q, AVPacket *pkt) +{ + AVPacket *pkt1; + int ret; + + pkt1 = av_packet_alloc(); + if (!pkt1) { + av_packet_unref(pkt); + return -1; + } + av_packet_move_ref(pkt1, pkt); + + SDL_LockMutex(q->mutex); + ret = packet_queue_put_private(q, pkt1); + SDL_UnlockMutex(q->mutex); + + if (ret < 0) + av_packet_free(&pkt1); + + return ret; +} + +static int packet_queue_put_nullpacket(PacketQueue *q, AVPacket *pkt, int stream_index) +{ + pkt->stream_index = stream_index; + return packet_queue_put(q, pkt); +} + +/* packet queue handling */ +static int packet_queue_init(PacketQueue *q) +{ + memset(q, 0, sizeof(PacketQueue)); + q->pkt_list = av_fifo_alloc2(1, sizeof(MyAVPacketList), AV_FIFO_FLAG_AUTO_GROW); + if (!q->pkt_list) + return AVERROR(ENOMEM); + q->mutex = SDL_CreateMutex(); + if (!q->mutex) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + q->cond = SDL_CreateCond(); + if (!q->cond) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + q->abort_request = 1; + return 0; +} + +static void packet_queue_flush(PacketQueue *q) +{ + MyAVPacketList pkt1; + + SDL_LockMutex(q->mutex); + while (av_fifo_read(q->pkt_list, &pkt1, 1) >= 0) + av_packet_free(&pkt1.pkt); + q->nb_packets = 0; + q->size = 0; + q->duration = 0; + q->serial++; + SDL_UnlockMutex(q->mutex); +} + +static void packet_queue_destroy(PacketQueue *q) +{ + packet_queue_flush(q); + av_fifo_freep2(&q->pkt_list); + SDL_DestroyMutex(q->mutex); + SDL_DestroyCond(q->cond); +} + +static void packet_queue_abort(PacketQueue *q) +{ + SDL_LockMutex(q->mutex); + + q->abort_request = 1; + + SDL_CondSignal(q->cond); + + SDL_UnlockMutex(q->mutex); +} + +static void packet_queue_start(PacketQueue *q) +{ + SDL_LockMutex(q->mutex); + q->abort_request = 0; + q->serial++; + SDL_UnlockMutex(q->mutex); +} + +/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ +static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) +{ + MyAVPacketList pkt1; + int ret; + + SDL_LockMutex(q->mutex); + + for (;;) { + if (q->abort_request) { + ret = -1; + break; + } + + if (av_fifo_read(q->pkt_list, &pkt1, 1) >= 0) { + q->nb_packets--; + q->size -= pkt1.pkt->size + sizeof(pkt1); + q->duration -= pkt1.pkt->duration; + av_packet_move_ref(pkt, pkt1.pkt); + if (serial) + *serial = pkt1.serial; + av_packet_free(&pkt1.pkt); + ret = 1; + break; + } else if (!block) { + ret = 0; + break; + } else { + SDL_CondWait(q->cond, q->mutex); + } + } + SDL_UnlockMutex(q->mutex); + return ret; +} + +static int decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) { + memset(d, 0, sizeof(Decoder)); + d->pkt = av_packet_alloc(); + if (!d->pkt) + return AVERROR(ENOMEM); + d->avctx = avctx; + d->queue = queue; + d->empty_queue_cond = empty_queue_cond; + d->start_pts = AV_NOPTS_VALUE; + d->pkt_serial = -1; + return 0; +} + +static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) { + int ret = AVERROR(EAGAIN); + + for (;;) { + if (d->queue->serial == d->pkt_serial) { + do { + if (d->queue->abort_request) + return -1; + + switch (d->avctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + ret = avcodec_receive_frame(d->avctx, frame); + if (ret >= 0) { + if (decoder_reorder_pts == -1) { + frame->pts = frame->best_effort_timestamp; + } else if (!decoder_reorder_pts) { + frame->pts = frame->pkt_dts; + } + } + break; + case AVMEDIA_TYPE_AUDIO: + ret = avcodec_receive_frame(d->avctx, frame); + if (ret >= 0) { + AVRational tb = (AVRational){1, frame->sample_rate}; + if (frame->pts != AV_NOPTS_VALUE) + frame->pts = av_rescale_q(frame->pts, d->avctx->pkt_timebase, tb); + else if (d->next_pts != AV_NOPTS_VALUE) + frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb); + if (frame->pts != AV_NOPTS_VALUE) { + d->next_pts = frame->pts + frame->nb_samples; + d->next_pts_tb = tb; + } + } + break; + } + if (ret == AVERROR_EOF) { + d->finished = d->pkt_serial; + avcodec_flush_buffers(d->avctx); + return 0; + } + if (ret >= 0) + return 1; + } while (ret != AVERROR(EAGAIN)); + } + + do { + if (d->queue->nb_packets == 0) + SDL_CondSignal(d->empty_queue_cond); + if (d->packet_pending) { + d->packet_pending = 0; + } else { + int old_serial = d->pkt_serial; + if (packet_queue_get(d->queue, d->pkt, 1, &d->pkt_serial) < 0) + return -1; + if (old_serial != d->pkt_serial) { + avcodec_flush_buffers(d->avctx); + d->finished = 0; + d->next_pts = d->start_pts; + d->next_pts_tb = d->start_pts_tb; + } + } + if (d->queue->serial == d->pkt_serial) + break; + av_packet_unref(d->pkt); + } while (1); + + if (d->avctx->codec_type == AVMEDIA_TYPE_SUBTITLE) { + int got_frame = 0; + ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, d->pkt); + if (ret < 0) { + ret = AVERROR(EAGAIN); + } else { + if (got_frame && !d->pkt->data) { + d->packet_pending = 1; + } + ret = got_frame ? 0 : (d->pkt->data ? AVERROR(EAGAIN) : AVERROR_EOF); + } + av_packet_unref(d->pkt); + } else { + if (d->pkt->buf && !d->pkt->opaque_ref) { + FrameData *fd; + + d->pkt->opaque_ref = av_buffer_allocz(sizeof(*fd)); + if (!d->pkt->opaque_ref) + return AVERROR(ENOMEM); + fd = (FrameData*)d->pkt->opaque_ref->data; + fd->pkt_pos = d->pkt->pos; + } + + if (avcodec_send_packet(d->avctx, d->pkt) == AVERROR(EAGAIN)) { + av_log(d->avctx, AV_LOG_ERROR, "Receive_frame and send_packet both returned EAGAIN, which is an API violation.\n"); + d->packet_pending = 1; + } else { + av_packet_unref(d->pkt); + } + } + } +} + +static void decoder_destroy(Decoder *d) { + av_packet_free(&d->pkt); + avcodec_free_context(&d->avctx); +} + +static void frame_queue_unref_item(Frame *vp) +{ + av_frame_unref(vp->frame); + avsubtitle_free(&vp->sub); +} + +static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last) +{ + int i; + memset(f, 0, sizeof(FrameQueue)); + if (!(f->mutex = SDL_CreateMutex())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + if (!(f->cond = SDL_CreateCond())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + f->pktq = pktq; + f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE); + f->keep_last = !!keep_last; + for (i = 0; i < f->max_size; i++) + if (!(f->queue[i].frame = av_frame_alloc())) + return AVERROR(ENOMEM); + return 0; +} + +static void frame_queue_destroy(FrameQueue *f) +{ + int i; + for (i = 0; i < f->max_size; i++) { + Frame *vp = &f->queue[i]; + frame_queue_unref_item(vp); + av_frame_free(&vp->frame); + } + SDL_DestroyMutex(f->mutex); + SDL_DestroyCond(f->cond); +} + +static void frame_queue_signal(FrameQueue *f) +{ + SDL_LockMutex(f->mutex); + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +static Frame *frame_queue_peek(FrameQueue *f) +{ + return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; +} + +static Frame *frame_queue_peek_next(FrameQueue *f) +{ + return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size]; +} + +static Frame *frame_queue_peek_last(FrameQueue *f) +{ + return &f->queue[f->rindex]; +} + +static Frame *frame_queue_peek_writable(FrameQueue *f) +{ + /* wait until we have space to put a new frame */ + SDL_LockMutex(f->mutex); + while (f->size >= f->max_size && + !f->pktq->abort_request) { + SDL_CondWait(f->cond, f->mutex); + } + SDL_UnlockMutex(f->mutex); + + if (f->pktq->abort_request) + return NULL; + + return &f->queue[f->windex]; +} + +static Frame *frame_queue_peek_readable(FrameQueue *f) +{ + /* wait until we have a readable a new frame */ + SDL_LockMutex(f->mutex); + while (f->size - f->rindex_shown <= 0 && + !f->pktq->abort_request) { + SDL_CondWait(f->cond, f->mutex); + } + SDL_UnlockMutex(f->mutex); + + if (f->pktq->abort_request) + return NULL; + + return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; +} + +static void frame_queue_push(FrameQueue *f) +{ + if (++f->windex == f->max_size) + f->windex = 0; + SDL_LockMutex(f->mutex); + f->size++; + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +static void frame_queue_next(FrameQueue *f) +{ + if (f->keep_last && !f->rindex_shown) { + f->rindex_shown = 1; + return; + } + frame_queue_unref_item(&f->queue[f->rindex]); + if (++f->rindex == f->max_size) + f->rindex = 0; + SDL_LockMutex(f->mutex); + f->size--; + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +/* return the number of undisplayed frames in the queue */ +static int frame_queue_nb_remaining(FrameQueue *f) +{ + return f->size - f->rindex_shown; +} + +/* return last shown position */ +static int64_t frame_queue_last_pos(FrameQueue *f) +{ + Frame *fp = &f->queue[f->rindex]; + if (f->rindex_shown && fp->serial == f->pktq->serial) + return fp->pos; + else + return -1; +} + +static void decoder_abort(Decoder *d, FrameQueue *fq) +{ + packet_queue_abort(d->queue); + frame_queue_signal(fq); + SDL_WaitThread(d->decoder_tid, NULL); + d->decoder_tid = NULL; + packet_queue_flush(d->queue); +} + +static inline void fill_rectangle(int x, int y, int w, int h) +{ + SDL_Rect rect; + rect.x = x; + rect.y = y; + rect.w = w; + rect.h = h; + if (w && h) + SDL_RenderFillRect(renderer, &rect); +} + +static int realloc_texture(SDL_Texture **texture, Uint32 new_format, int new_width, int new_height, SDL_BlendMode blendmode, int init_texture) +{ + Uint32 format; + int access, w, h; + if (!*texture || SDL_QueryTexture(*texture, &format, &access, &w, &h) < 0 || new_width != w || new_height != h || new_format != format) { + void *pixels; + int pitch; + if (*texture) + SDL_DestroyTexture(*texture); + if (!(*texture = SDL_CreateTexture(renderer, new_format, SDL_TEXTUREACCESS_STREAMING, new_width, new_height))) + return -1; + if (SDL_SetTextureBlendMode(*texture, blendmode) < 0) + return -1; + if (init_texture) { + if (SDL_LockTexture(*texture, NULL, &pixels, &pitch) < 0) + return -1; + memset(pixels, 0, pitch * new_height); + SDL_UnlockTexture(*texture); + } + av_log(NULL, AV_LOG_VERBOSE, "Created %dx%d texture with %s.\n", new_width, new_height, SDL_GetPixelFormatName(new_format)); + } + return 0; +} + +static void calculate_display_rect(SDL_Rect *rect, + int scr_xleft, int scr_ytop, int scr_width, int scr_height, + int pic_width, int pic_height, AVRational pic_sar) +{ + AVRational aspect_ratio = pic_sar; + int64_t width, height, x, y; + + if (av_cmp_q(aspect_ratio, av_make_q(0, 1)) <= 0) + aspect_ratio = av_make_q(1, 1); + + aspect_ratio = av_mul_q(aspect_ratio, av_make_q(pic_width, pic_height)); + + /* XXX: we suppose the screen has a 1.0 pixel ratio */ + height = scr_height; + width = av_rescale(height, aspect_ratio.num, aspect_ratio.den) & ~1; + if (width > scr_width) { + width = scr_width; + height = av_rescale(width, aspect_ratio.den, aspect_ratio.num) & ~1; + } + x = (scr_width - width) / 2; + y = (scr_height - height) / 2; + rect->x = scr_xleft + x; + rect->y = scr_ytop + y; + rect->w = FFMAX((int)width, 1); + rect->h = FFMAX((int)height, 1); +} + +static void get_sdl_pix_fmt_and_blendmode(int format, Uint32 *sdl_pix_fmt, SDL_BlendMode *sdl_blendmode) +{ + int i; + *sdl_blendmode = SDL_BLENDMODE_NONE; + *sdl_pix_fmt = SDL_PIXELFORMAT_UNKNOWN; + if (format == AV_PIX_FMT_RGB32 || + format == AV_PIX_FMT_RGB32_1 || + format == AV_PIX_FMT_BGR32 || + format == AV_PIX_FMT_BGR32_1) + *sdl_blendmode = SDL_BLENDMODE_BLEND; + for (i = 0; i < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; i++) { + if (format == sdl_texture_format_map[i].format) { + *sdl_pix_fmt = sdl_texture_format_map[i].texture_fmt; + return; + } + } +} + +static int upload_texture(SDL_Texture **tex, AVFrame *frame) +{ + int ret = 0; + Uint32 sdl_pix_fmt; + SDL_BlendMode sdl_blendmode; + get_sdl_pix_fmt_and_blendmode(frame->format, &sdl_pix_fmt, &sdl_blendmode); + if (realloc_texture(tex, sdl_pix_fmt == SDL_PIXELFORMAT_UNKNOWN ? SDL_PIXELFORMAT_ARGB8888 : sdl_pix_fmt, frame->width, frame->height, sdl_blendmode, 0) < 0) + return -1; + switch (sdl_pix_fmt) { + case SDL_PIXELFORMAT_IYUV: + if (frame->linesize[0] > 0 && frame->linesize[1] > 0 && frame->linesize[2] > 0) { + ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0], frame->linesize[0], + frame->data[1], frame->linesize[1], + frame->data[2], frame->linesize[2]); + } else if (frame->linesize[0] < 0 && frame->linesize[1] < 0 && frame->linesize[2] < 0) { + ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0], + frame->data[1] + frame->linesize[1] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[1], + frame->data[2] + frame->linesize[2] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[2]); + } else { + av_log(NULL, AV_LOG_ERROR, "Mixed negative and positive linesizes are not supported.\n"); + return -1; + } + break; + default: + if (frame->linesize[0] < 0) { + ret = SDL_UpdateTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0]); + } else { + ret = SDL_UpdateTexture(*tex, NULL, frame->data[0], frame->linesize[0]); + } + break; + } + return ret; +} + +static void set_sdl_yuv_conversion_mode(AVFrame *frame) +{ +#if SDL_VERSION_ATLEAST(2,0,8) + SDL_YUV_CONVERSION_MODE mode = SDL_YUV_CONVERSION_AUTOMATIC; + if (frame && (frame->format == AV_PIX_FMT_YUV420P || frame->format == AV_PIX_FMT_YUYV422 || frame->format == AV_PIX_FMT_UYVY422)) { + if (frame->color_range == AVCOL_RANGE_JPEG) + mode = SDL_YUV_CONVERSION_JPEG; + else if (frame->colorspace == AVCOL_SPC_BT709) + mode = SDL_YUV_CONVERSION_BT709; + else if (frame->colorspace == AVCOL_SPC_BT470BG || frame->colorspace == AVCOL_SPC_SMPTE170M) + mode = SDL_YUV_CONVERSION_BT601; + } + SDL_SetYUVConversionMode(mode); /* FIXME: no support for linear transfer */ +#endif +} + +static void video_image_display(VideoState *is) +{ + Frame *vp; + Frame *sp = NULL; + SDL_Rect rect; + + vp = frame_queue_peek_last(&is->pictq); + if (is->subtitle_st) { + if (frame_queue_nb_remaining(&is->subpq) > 0) { + sp = frame_queue_peek(&is->subpq); + + if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { + if (!sp->uploaded) { + uint8_t* pixels[4]; + int pitch[4]; + int i; + if (!sp->width || !sp->height) { + sp->width = vp->width; + sp->height = vp->height; + } + if (realloc_texture(&is->sub_texture, SDL_PIXELFORMAT_ARGB8888, sp->width, sp->height, SDL_BLENDMODE_BLEND, 1) < 0) + return; + + for (i = 0; i < sp->sub.num_rects; i++) { + AVSubtitleRect *sub_rect = sp->sub.rects[i]; + + sub_rect->x = av_clip(sub_rect->x, 0, sp->width ); + sub_rect->y = av_clip(sub_rect->y, 0, sp->height); + sub_rect->w = av_clip(sub_rect->w, 0, sp->width - sub_rect->x); + sub_rect->h = av_clip(sub_rect->h, 0, sp->height - sub_rect->y); + + is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx, + sub_rect->w, sub_rect->h, AV_PIX_FMT_PAL8, + sub_rect->w, sub_rect->h, AV_PIX_FMT_BGRA, + 0, NULL, NULL, NULL); + if (!is->sub_convert_ctx) { + av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); + return; + } + if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)pixels, pitch)) { + sws_scale(is->sub_convert_ctx, (const uint8_t * const *)sub_rect->data, sub_rect->linesize, + 0, sub_rect->h, pixels, pitch); + SDL_UnlockTexture(is->sub_texture); + } + } + sp->uploaded = 1; + } + } else + sp = NULL; + } + } + + calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar); + set_sdl_yuv_conversion_mode(vp->frame); + + if (!vp->uploaded) { + if (upload_texture(&is->vid_texture, vp->frame) < 0) { + set_sdl_yuv_conversion_mode(NULL); + return; + } + vp->uploaded = 1; + vp->flip_v = vp->frame->linesize[0] < 0; + } + + SDL_RenderCopyEx(renderer, is->vid_texture, NULL, &rect, 0, NULL, vp->flip_v ? SDL_FLIP_VERTICAL : 0); + set_sdl_yuv_conversion_mode(NULL); + if (sp) { +#if USE_ONEPASS_SUBTITLE_RENDER + SDL_RenderCopy(renderer, is->sub_texture, NULL, &rect); +#else + int i; + double xratio = (double)rect.w / (double)sp->width; + double yratio = (double)rect.h / (double)sp->height; + for (i = 0; i < sp->sub.num_rects; i++) { + SDL_Rect *sub_rect = (SDL_Rect*)sp->sub.rects[i]; + SDL_Rect target = {.x = rect.x + sub_rect->x * xratio, + .y = rect.y + sub_rect->y * yratio, + .w = sub_rect->w * xratio, + .h = sub_rect->h * yratio}; + SDL_RenderCopy(renderer, is->sub_texture, sub_rect, &target); + } +#endif + } +} + +static inline int compute_mod(int a, int b) +{ + return a < 0 ? a%b + b : a%b; +} + +static void video_audio_display(VideoState *s) +{ + int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; + int ch, channels, h, h2; + int64_t time_diff; + int rdft_bits, nb_freq; + + for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) + ; + nb_freq = 1 << (rdft_bits - 1); + + /* compute display index : center on currently output samples */ + channels = s->audio_tgt.ch_layout.nb_channels; + nb_display_channels = channels; + if (!s->paused) { + int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); + n = 2 * channels; + delay = s->audio_write_buf_size; + delay /= n; + + /* to be more precise, we take into account the time spent since + the last buffer computation */ + if (audio_callback_time) { + time_diff = av_gettime_relative() - audio_callback_time; + delay -= (time_diff * s->audio_tgt.freq) / 1000000; + } + + delay += 2 * data_used; + if (delay < data_used) + delay = data_used; + + i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); + if (s->show_mode == SHOW_MODE_WAVES) { + h = INT_MIN; + for (i = 0; i < 1000; i += channels) { + int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; + int a = s->sample_array[idx]; + int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; + int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; + int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; + int score = a - d; + if (h < score && (b ^ c) < 0) { + h = score; + i_start = idx; + } + } + } + + s->last_i_start = i_start; + } else { + i_start = s->last_i_start; + } + + if (s->show_mode == SHOW_MODE_WAVES) { + SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255); + + /* total height for one channel */ + h = s->height / nb_display_channels; + /* graph height / 2 */ + h2 = (h * 9) / 20; + for (ch = 0; ch < nb_display_channels; ch++) { + i = i_start + ch; + y1 = s->ytop + ch * h + (h / 2); /* position of center line */ + for (x = 0; x < s->width; x++) { + y = (s->sample_array[i] * h2) >> 15; + if (y < 0) { + y = -y; + ys = y1 - y; + } else { + ys = y1; + } + fill_rectangle(s->xleft + x, ys, 1, y); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + } + + SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255); + + for (ch = 1; ch < nb_display_channels; ch++) { + y = s->ytop + ch * h; + fill_rectangle(s->xleft, y, s->width, 1); + } + } else { + int err = 0; + if (realloc_texture(&s->vis_texture, SDL_PIXELFORMAT_ARGB8888, s->width, s->height, SDL_BLENDMODE_NONE, 1) < 0) + return; + + if (s->xpos >= s->width) + s->xpos = 0; + nb_display_channels= FFMIN(nb_display_channels, 2); + if (rdft_bits != s->rdft_bits) { + const float rdft_scale = 1.0; + av_tx_uninit(&s->rdft); + av_freep(&s->real_data); + av_freep(&s->rdft_data); + s->rdft_bits = rdft_bits; + s->real_data = av_malloc_array(nb_freq, 4 *sizeof(*s->real_data)); + s->rdft_data = av_malloc_array(nb_freq + 1, 2 *sizeof(*s->rdft_data)); + err = av_tx_init(&s->rdft, &s->rdft_fn, AV_TX_FLOAT_RDFT, + 0, 1 << rdft_bits, &rdft_scale, 0); + } + if (err < 0 || !s->rdft_data) { + av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n"); + s->show_mode = SHOW_MODE_WAVES; + } else { + float *data_in[2]; + AVComplexFloat *data[2]; + SDL_Rect rect = {.x = s->xpos, .y = 0, .w = 1, .h = s->height}; + uint32_t *pixels; + int pitch; + for (ch = 0; ch < nb_display_channels; ch++) { + data_in[ch] = s->real_data + 2 * nb_freq * ch; + data[ch] = s->rdft_data + nb_freq * ch; + i = i_start + ch; + for (x = 0; x < 2 * nb_freq; x++) { + double w = (x-nb_freq) * (1.0 / nb_freq); + data_in[ch][x] = s->sample_array[i] * (1.0 - w * w); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + s->rdft_fn(s->rdft, data[ch], data_in[ch], sizeof(float)); + data[ch][0].im = data[ch][nb_freq].re; + data[ch][nb_freq].re = 0; + } + /* Least efficient way to do this, we should of course + * directly access it but it is more than fast enough. */ + if (!SDL_LockTexture(s->vis_texture, &rect, (void **)&pixels, &pitch)) { + pitch >>= 2; + pixels += pitch * s->height; + for (y = 0; y < s->height; y++) { + double w = 1 / sqrt(nb_freq); + int a = sqrt(w * sqrt(data[0][y].re * data[0][y].re + data[0][y].im * data[0][y].im)); + int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][y].re, data[1][y].im)) + : a; + a = FFMIN(a, 255); + b = FFMIN(b, 255); + pixels -= pitch; + *pixels = (a << 16) + (b << 8) + ((a+b) >> 1); + } + SDL_UnlockTexture(s->vis_texture); + } + SDL_RenderCopy(renderer, s->vis_texture, NULL, NULL); + } + if (!s->paused) + s->xpos++; + } +} + +static void stream_component_close(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecParameters *codecpar; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return; + codecpar = ic->streams[stream_index]->codecpar; + + switch (codecpar->codec_type) { + case AVMEDIA_TYPE_AUDIO: + decoder_abort(&is->auddec, &is->sampq); + SDL_CloseAudioDevice(audio_dev); + decoder_destroy(&is->auddec); + swr_free(&is->swr_ctx); + av_freep(&is->audio_buf1); + is->audio_buf1_size = 0; + is->audio_buf = NULL; + + if (is->rdft) { + av_tx_uninit(&is->rdft); + av_freep(&is->real_data); + av_freep(&is->rdft_data); + is->rdft = NULL; + is->rdft_bits = 0; + } + break; + case AVMEDIA_TYPE_VIDEO: + decoder_abort(&is->viddec, &is->pictq); + decoder_destroy(&is->viddec); + break; + case AVMEDIA_TYPE_SUBTITLE: + decoder_abort(&is->subdec, &is->subpq); + decoder_destroy(&is->subdec); + break; + default: + break; + } + + ic->streams[stream_index]->discard = AVDISCARD_ALL; + switch (codecpar->codec_type) { + case AVMEDIA_TYPE_AUDIO: + is->audio_st = NULL; + is->audio_stream = -1; + break; + case AVMEDIA_TYPE_VIDEO: + is->video_st = NULL; + is->video_stream = -1; + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_st = NULL; + is->subtitle_stream = -1; + break; + default: + break; + } +} + +static void stream_close(VideoState *is) +{ + /* XXX: use a special url_shutdown call to abort parse cleanly */ + is->abort_request = 1; + SDL_WaitThread(is->read_tid, NULL); + + /* close each stream */ + if (is->audio_stream >= 0) + stream_component_close(is, is->audio_stream); + if (is->video_stream >= 0) + stream_component_close(is, is->video_stream); + if (is->subtitle_stream >= 0) + stream_component_close(is, is->subtitle_stream); + + avformat_close_input(&is->ic); + + packet_queue_destroy(&is->videoq); + packet_queue_destroy(&is->audioq); + packet_queue_destroy(&is->subtitleq); + + /* free all pictures */ + frame_queue_destroy(&is->pictq); + frame_queue_destroy(&is->sampq); + frame_queue_destroy(&is->subpq); + SDL_DestroyCond(is->continue_read_thread); + sws_freeContext(is->sub_convert_ctx); + av_free(is->filename); + if (is->vis_texture) + SDL_DestroyTexture(is->vis_texture); + if (is->vid_texture) + SDL_DestroyTexture(is->vid_texture); + if (is->sub_texture) + SDL_DestroyTexture(is->sub_texture); + av_free(is); +} + +static void do_exit(VideoState *is) +{ + if (is) { + stream_close(is); + } + if (renderer) + SDL_DestroyRenderer(renderer); + if (window) + SDL_DestroyWindow(window); + uninit_opts(); + av_freep(&vfilters_list); + avformat_network_deinit(); + if (show_status) + printf("\n"); + SDL_Quit(); + av_log(NULL, AV_LOG_QUIET, "%s", ""); + exit(0); +} + +static void sigterm_handler(int sig) +{ + exit(123); +} + +static void set_default_window_size(int width, int height, AVRational sar) +{ + SDL_Rect rect; + int max_width = screen_width ? screen_width : INT_MAX; + int max_height = screen_height ? screen_height : INT_MAX; + if (max_width == INT_MAX && max_height == INT_MAX) + max_height = height; + calculate_display_rect(&rect, 0, 0, max_width, max_height, width, height, sar); + default_width = rect.w; + default_height = rect.h; +} + +static int video_open(VideoState *is) +{ + int w,h; + + w = screen_width ? screen_width : default_width; + h = screen_height ? screen_height : default_height; + + if (!window_title) + window_title = input_filename; + SDL_SetWindowTitle(window, window_title); + + SDL_SetWindowSize(window, w, h); + SDL_SetWindowPosition(window, screen_left, screen_top); + if (is_full_screen) + SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP); + SDL_ShowWindow(window); + + is->width = w; + is->height = h; + + return 0; +} + +/* display the current picture, if any */ +static void video_display(VideoState *is) +{ + if (!is->width) + video_open(is); + + SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); + SDL_RenderClear(renderer); + if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) + video_audio_display(is); + else if (is->video_st) + video_image_display(is); + SDL_RenderPresent(renderer); +} + +static double get_clock(Clock *c) +{ + if (*c->queue_serial != c->serial) + return NAN; + if (c->paused) { + return c->pts; + } else { + double time = av_gettime_relative() / 1000000.0; + return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed); + } +} + +static void set_clock_at(Clock *c, double pts, int serial, double time) +{ + c->pts = pts; + c->last_updated = time; + c->pts_drift = c->pts - time; + c->serial = serial; +} + +static void set_clock(Clock *c, double pts, int serial) +{ + double time = av_gettime_relative() / 1000000.0; + set_clock_at(c, pts, serial, time); +} + +static void set_clock_speed(Clock *c, double speed) +{ + set_clock(c, get_clock(c), c->serial); + c->speed = speed; +} + +static void init_clock(Clock *c, int *queue_serial) +{ + c->speed = 1.0; + c->paused = 0; + c->queue_serial = queue_serial; + set_clock(c, NAN, -1); +} + +static void sync_clock_to_slave(Clock *c, Clock *slave) +{ + double clock = get_clock(c); + double slave_clock = get_clock(slave); + if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD)) + set_clock(c, slave_clock, slave->serial); +} + +static int get_master_sync_type(VideoState *is) { + if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { + if (is->video_st) + return AV_SYNC_VIDEO_MASTER; + else + return AV_SYNC_AUDIO_MASTER; + } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { + if (is->audio_st) + return AV_SYNC_AUDIO_MASTER; + else + return AV_SYNC_EXTERNAL_CLOCK; + } else { + return AV_SYNC_EXTERNAL_CLOCK; + } +} + +/* get the current master clock value */ +static double get_master_clock(VideoState *is) +{ + double val; + + switch (get_master_sync_type(is)) { + case AV_SYNC_VIDEO_MASTER: + val = get_clock(&is->vidclk); + break; + case AV_SYNC_AUDIO_MASTER: + val = get_clock(&is->audclk); + break; + default: + val = get_clock(&is->extclk); + break; + } + return val; +} + +static void check_external_clock_speed(VideoState *is) { + if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES || + is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) { + set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP)); + } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) && + (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) { + set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP)); + } else { + double speed = is->extclk.speed; + if (speed != 1.0) + set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); + } +} + +/* seek in the stream */ +static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int by_bytes) +{ + if (!is->seek_req) { + is->seek_pos = pos; + is->seek_rel = rel; + is->seek_flags &= ~AVSEEK_FLAG_BYTE; + if (by_bytes) + is->seek_flags |= AVSEEK_FLAG_BYTE; + is->seek_req = 1; + SDL_CondSignal(is->continue_read_thread); + } +} + +/* pause or resume the video */ +static void stream_toggle_pause(VideoState *is) +{ + if (is->paused) { + is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated; + if (is->read_pause_return != AVERROR(ENOSYS)) { + is->vidclk.paused = 0; + } + set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial); + } + set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial); + is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused; +} + +static void toggle_pause(VideoState *is) +{ + stream_toggle_pause(is); + is->step = 0; +} + +static void toggle_mute(VideoState *is) +{ + is->muted = !is->muted; +} + +static void update_volume(VideoState *is, int sign, double step) +{ + double volume_level = is->audio_volume ? (20 * log(is->audio_volume / (double)SDL_MIX_MAXVOLUME) / log(10)) : -1000.0; + int new_volume = lrint(SDL_MIX_MAXVOLUME * pow(10.0, (volume_level + sign * step) / 20.0)); + is->audio_volume = av_clip(is->audio_volume == new_volume ? (is->audio_volume + sign) : new_volume, 0, SDL_MIX_MAXVOLUME); +} + +static void step_to_next_frame(VideoState *is) +{ + /* if the stream is paused unpause it, then step */ + if (is->paused) + stream_toggle_pause(is); + is->step = 1; +} + +static double compute_target_delay(double delay, VideoState *is) +{ + double sync_threshold, diff = 0; + + /* update delay to follow master synchronisation source */ + if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { + /* if video is slave, we try to correct big delays by + duplicating or deleting a frame */ + diff = get_clock(&is->vidclk) - get_master_clock(is); + + /* skip or repeat frame. We take into account the + delay to compute the threshold. I still don't know + if it is the best guess */ + sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay)); + if (!isnan(diff) && fabs(diff) < is->max_frame_duration) { + if (diff <= -sync_threshold) + delay = FFMAX(0, delay + diff); + else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD) + delay = delay + diff; + else if (diff >= sync_threshold) + delay = 2 * delay; + } + } + + av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n", + delay, -diff); + + return delay; +} + +static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) { + if (vp->serial == nextvp->serial) { + double duration = nextvp->pts - vp->pts; + if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration) + return vp->duration; + else + return duration; + } else { + return 0.0; + } +} + +static void update_video_pts(VideoState *is, double pts, int serial) +{ + /* update current video pts */ + set_clock(&is->vidclk, pts, serial); + sync_clock_to_slave(&is->extclk, &is->vidclk); +} + +/* called to display each frame */ +static void video_refresh(void *opaque, double *remaining_time) +{ + VideoState *is = opaque; + double time; + + Frame *sp, *sp2; + + if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) + check_external_clock_speed(is); + + if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { + time = av_gettime_relative() / 1000000.0; + if (is->force_refresh || is->last_vis_time + rdftspeed < time) { + video_display(is); + is->last_vis_time = time; + } + *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); + } + + if (is->video_st) { +retry: + if (frame_queue_nb_remaining(&is->pictq) == 0) { + // nothing to do, no picture to display in the queue + } else { + double last_duration, duration, delay; + Frame *vp, *lastvp; + + /* dequeue the picture */ + lastvp = frame_queue_peek_last(&is->pictq); + vp = frame_queue_peek(&is->pictq); + + if (vp->serial != is->videoq.serial) { + frame_queue_next(&is->pictq); + goto retry; + } + + if (lastvp->serial != vp->serial) + is->frame_timer = av_gettime_relative() / 1000000.0; + + if (is->paused) + goto display; + + /* compute nominal last_duration */ + last_duration = vp_duration(is, lastvp, vp); + delay = compute_target_delay(last_duration, is); + + time= av_gettime_relative()/1000000.0; + if (time < is->frame_timer + delay) { + *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); + goto display; + } + + is->frame_timer += delay; + if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX) + is->frame_timer = time; + + SDL_LockMutex(is->pictq.mutex); + if (!isnan(vp->pts)) + update_video_pts(is, vp->pts, vp->serial); + SDL_UnlockMutex(is->pictq.mutex); + + if (frame_queue_nb_remaining(&is->pictq) > 1) { + Frame *nextvp = frame_queue_peek_next(&is->pictq); + duration = vp_duration(is, vp, nextvp); + if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ + is->frame_drops_late++; + frame_queue_next(&is->pictq); + goto retry; + } + } + + if (is->subtitle_st) { + while (frame_queue_nb_remaining(&is->subpq) > 0) { + sp = frame_queue_peek(&is->subpq); + + if (frame_queue_nb_remaining(&is->subpq) > 1) + sp2 = frame_queue_peek_next(&is->subpq); + else + sp2 = NULL; + + if (sp->serial != is->subtitleq.serial + || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) + || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) + { + if (sp->uploaded) { + int i; + for (i = 0; i < sp->sub.num_rects; i++) { + AVSubtitleRect *sub_rect = sp->sub.rects[i]; + uint8_t *pixels; + int pitch, j; + + if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)&pixels, &pitch)) { + for (j = 0; j < sub_rect->h; j++, pixels += pitch) + memset(pixels, 0, sub_rect->w << 2); + SDL_UnlockTexture(is->sub_texture); + } + } + } + frame_queue_next(&is->subpq); + } else { + break; + } + } + } + + frame_queue_next(&is->pictq); + is->force_refresh = 1; + + if (is->step && !is->paused) + stream_toggle_pause(is); + } +display: + /* display picture */ + if (!display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown) + video_display(is); + } + is->force_refresh = 0; + if (show_status) { + AVBPrint buf; + static int64_t last_time; + int64_t cur_time; + int aqsize, vqsize, sqsize; + double av_diff; + + cur_time = av_gettime_relative(); + if (!last_time || (cur_time - last_time) >= 30000) { + aqsize = 0; + vqsize = 0; + sqsize = 0; + if (is->audio_st) + aqsize = is->audioq.size; + if (is->video_st) + vqsize = is->videoq.size; + if (is->subtitle_st) + sqsize = is->subtitleq.size; + av_diff = 0; + if (is->audio_st && is->video_st) + av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk); + else if (is->video_st) + av_diff = get_master_clock(is) - get_clock(&is->vidclk); + else if (is->audio_st) + av_diff = get_master_clock(is) - get_clock(&is->audclk); + + av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC); + av_bprintf(&buf, + "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", + get_master_clock(is), + (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")), + av_diff, + is->frame_drops_early + is->frame_drops_late, + aqsize / 1024, + vqsize / 1024, + sqsize, + is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0, + is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0); + + if (show_status == 1 && AV_LOG_INFO > av_log_get_level()) + fprintf(stderr, "%s", buf.str); + else + av_log(NULL, AV_LOG_INFO, "%s", buf.str); + + fflush(stderr); + av_bprint_finalize(&buf, NULL); + + last_time = cur_time; + } + } +} + +static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial) +{ + Frame *vp; + +#if defined(DEBUG_SYNC) + printf("frame_type=%c pts=%0.3f\n", + av_get_picture_type_char(src_frame->pict_type), pts); +#endif + + if (!(vp = frame_queue_peek_writable(&is->pictq))) + return -1; + + vp->sar = src_frame->sample_aspect_ratio; + vp->uploaded = 0; + + vp->width = src_frame->width; + vp->height = src_frame->height; + vp->format = src_frame->format; + + vp->pts = pts; + vp->duration = duration; + vp->pos = pos; + vp->serial = serial; + + set_default_window_size(vp->width, vp->height, vp->sar); + + av_frame_move_ref(vp->frame, src_frame); + frame_queue_push(&is->pictq); + return 0; +} + +static int get_video_frame(VideoState *is, AVFrame *frame) +{ + int got_picture; + + if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0) + return -1; + + if (got_picture) { + double dpts = NAN; + + if (frame->pts != AV_NOPTS_VALUE) + dpts = av_q2d(is->video_st->time_base) * frame->pts; + + frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); + + if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { + if (frame->pts != AV_NOPTS_VALUE) { + double diff = dpts - get_master_clock(is); + if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD && + diff - is->frame_last_filter_delay < 0 && + is->viddec.pkt_serial == is->vidclk.serial && + is->videoq.nb_packets) { + is->frame_drops_early++; + av_frame_unref(frame); + got_picture = 0; + } + } + } + } + + return got_picture; +} + +static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, + AVFilterContext *source_ctx, AVFilterContext *sink_ctx) +{ + int ret, i; + int nb_filters = graph->nb_filters; + AVFilterInOut *outputs = NULL, *inputs = NULL; + + if (filtergraph) { + outputs = avfilter_inout_alloc(); + inputs = avfilter_inout_alloc(); + if (!outputs || !inputs) { + ret = AVERROR(ENOMEM); + goto fail; + } + + outputs->name = av_strdup("in"); + outputs->filter_ctx = source_ctx; + outputs->pad_idx = 0; + outputs->next = NULL; + + inputs->name = av_strdup("out"); + inputs->filter_ctx = sink_ctx; + inputs->pad_idx = 0; + inputs->next = NULL; + + if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0) + goto fail; + } else { + if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) + goto fail; + } + + /* Reorder the filters to ensure that inputs of the custom filters are merged first */ + for (i = 0; i < graph->nb_filters - nb_filters; i++) + FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]); + + ret = avfilter_graph_config(graph, NULL); +fail: + avfilter_inout_free(&outputs); + avfilter_inout_free(&inputs); + return ret; +} + +static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) +{ + enum AVPixelFormat pix_fmts[FF_ARRAY_ELEMS(sdl_texture_format_map)]; + char sws_flags_str[512] = ""; + char buffersrc_args[256]; + int ret; + AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL; + AVCodecParameters *codecpar = is->video_st->codecpar; + AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL); + const AVDictionaryEntry *e = NULL; + int nb_pix_fmts = 0; + int i, j; + + for (i = 0; i < renderer_info.num_texture_formats; i++) { + for (j = 0; j < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; j++) { + if (renderer_info.texture_formats[i] == sdl_texture_format_map[j].texture_fmt) { + pix_fmts[nb_pix_fmts++] = sdl_texture_format_map[j].format; + break; + } + } + } + pix_fmts[nb_pix_fmts] = AV_PIX_FMT_NONE; + + while ((e = av_dict_iterate(sws_dict, e))) { + if (!strcmp(e->key, "sws_flags")) { + av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value); + } else + av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value); + } + if (strlen(sws_flags_str)) + sws_flags_str[strlen(sws_flags_str)-1] = '\0'; + + graph->scale_sws_opts = av_strdup(sws_flags_str); + + snprintf(buffersrc_args, sizeof(buffersrc_args), + "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", + frame->width, frame->height, frame->format, + is->video_st->time_base.num, is->video_st->time_base.den, + codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1)); + if (fr.num && fr.den) + av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den); + + if ((ret = avfilter_graph_create_filter(&filt_src, + avfilter_get_by_name("buffer"), + "ffplay_buffer", buffersrc_args, NULL, + graph)) < 0) + goto fail; + + ret = avfilter_graph_create_filter(&filt_out, + avfilter_get_by_name("buffersink"), + "ffplay_buffersink", NULL, NULL, graph); + if (ret < 0) + goto fail; + + if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) + goto fail; + + last_filter = filt_out; + +/* Note: this macro adds a filter before the lastly added filter, so the + * processing order of the filters is in reverse */ +#define INSERT_FILT(name, arg) do { \ + AVFilterContext *filt_ctx; \ + \ + ret = avfilter_graph_create_filter(&filt_ctx, \ + avfilter_get_by_name(name), \ + "ffplay_" name, arg, NULL, graph); \ + if (ret < 0) \ + goto fail; \ + \ + ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ + if (ret < 0) \ + goto fail; \ + \ + last_filter = filt_ctx; \ +} while (0) + + if (autorotate) { + double theta = 0.0; + int32_t *displaymatrix = NULL; + AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DISPLAYMATRIX); + if (sd) + displaymatrix = (int32_t *)sd->data; + if (!displaymatrix) { + const AVPacketSideData *sd = av_packet_side_data_get(is->video_st->codecpar->coded_side_data, + is->video_st->codecpar->nb_coded_side_data, + AV_PKT_DATA_DISPLAYMATRIX); + if (sd) + displaymatrix = (int32_t *)sd->data; + } + theta = get_rotation(displaymatrix); + + if (fabs(theta - 90) < 1.0) { + INSERT_FILT("transpose", "clock"); + } else if (fabs(theta - 180) < 1.0) { + INSERT_FILT("hflip", NULL); + INSERT_FILT("vflip", NULL); + } else if (fabs(theta - 270) < 1.0) { + INSERT_FILT("transpose", "cclock"); + } else if (fabs(theta) > 1.0) { + char rotate_buf[64]; + snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta); + INSERT_FILT("rotate", rotate_buf); + } + } + + if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0) + goto fail; + + is->in_video_filter = filt_src; + is->out_video_filter = filt_out; + +fail: + return ret; +} + +static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) +{ + static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; + int sample_rates[2] = { 0, -1 }; + AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; + char aresample_swr_opts[512] = ""; + const AVDictionaryEntry *e = NULL; + AVBPrint bp; + char asrc_args[256]; + int ret; + + avfilter_graph_free(&is->agraph); + if (!(is->agraph = avfilter_graph_alloc())) + return AVERROR(ENOMEM); + is->agraph->nb_threads = filter_nbthreads; + + av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC); + + while ((e = av_dict_iterate(swr_opts, e))) + av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value); + if (strlen(aresample_swr_opts)) + aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0'; + av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0); + + av_channel_layout_describe_bprint(&is->audio_filter_src.ch_layout, &bp); + + ret = snprintf(asrc_args, sizeof(asrc_args), + "sample_rate=%d:sample_fmt=%s:time_base=%d/%d:channel_layout=%s", + is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), + 1, is->audio_filter_src.freq, bp.str); + + ret = avfilter_graph_create_filter(&filt_asrc, + avfilter_get_by_name("abuffer"), "ffplay_abuffer", + asrc_args, NULL, is->agraph); + if (ret < 0) + goto end; + + + ret = avfilter_graph_create_filter(&filt_asink, + avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", + NULL, NULL, is->agraph); + if (ret < 0) + goto end; + + if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + + if (force_output_format) { + sample_rates [0] = is->audio_tgt.freq; + if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set(filt_asink, "ch_layouts", bp.str, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + } + + + if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) + goto end; + + is->in_audio_filter = filt_asrc; + is->out_audio_filter = filt_asink; + +end: + if (ret < 0) + avfilter_graph_free(&is->agraph); + av_bprint_finalize(&bp, NULL); + + return ret; +} + +static int audio_thread(void *arg) +{ + VideoState *is = arg; + AVFrame *frame = av_frame_alloc(); + Frame *af; + int last_serial = -1; + int reconfigure; + int got_frame = 0; + AVRational tb; + int ret = 0; + + if (!frame) + return AVERROR(ENOMEM); + + do { + if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0) + goto the_end; + + if (got_frame) { + tb = (AVRational){1, frame->sample_rate}; + + reconfigure = + cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.ch_layout.nb_channels, + frame->format, frame->ch_layout.nb_channels) || + av_channel_layout_compare(&is->audio_filter_src.ch_layout, &frame->ch_layout) || + is->audio_filter_src.freq != frame->sample_rate || + is->auddec.pkt_serial != last_serial; + + if (reconfigure) { + char buf1[1024], buf2[1024]; + av_channel_layout_describe(&is->audio_filter_src.ch_layout, buf1, sizeof(buf1)); + av_channel_layout_describe(&frame->ch_layout, buf2, sizeof(buf2)); + av_log(NULL, AV_LOG_DEBUG, + "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", + is->audio_filter_src.freq, is->audio_filter_src.ch_layout.nb_channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial, + frame->sample_rate, frame->ch_layout.nb_channels, av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial); + + is->audio_filter_src.fmt = frame->format; + ret = av_channel_layout_copy(&is->audio_filter_src.ch_layout, &frame->ch_layout); + if (ret < 0) + goto the_end; + is->audio_filter_src.freq = frame->sample_rate; + last_serial = is->auddec.pkt_serial; + + if ((ret = configure_audio_filters(is, afilters, 1)) < 0) + goto the_end; + } + + if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0) + goto the_end; + + while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) { + FrameData *fd = frame->opaque_ref ? (FrameData*)frame->opaque_ref->data : NULL; + tb = av_buffersink_get_time_base(is->out_audio_filter); + if (!(af = frame_queue_peek_writable(&is->sampq))) + goto the_end; + + af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); + af->pos = fd ? fd->pkt_pos : -1; + af->serial = is->auddec.pkt_serial; + af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate}); + + av_frame_move_ref(af->frame, frame); + frame_queue_push(&is->sampq); + + if (is->audioq.serial != is->auddec.pkt_serial) + break; + } + if (ret == AVERROR_EOF) + is->auddec.finished = is->auddec.pkt_serial; + } + } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF); + the_end: + avfilter_graph_free(&is->agraph); + av_frame_free(&frame); + return ret; +} + +static int decoder_start(Decoder *d, int (*fn)(void *), const char *thread_name, void* arg) +{ + packet_queue_start(d->queue); + d->decoder_tid = SDL_CreateThread(fn, thread_name, arg); + if (!d->decoder_tid) { + av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + return 0; +} + +static int video_thread(void *arg) +{ + VideoState *is = arg; + AVFrame *frame = av_frame_alloc(); + double pts; + double duration; + int ret; + AVRational tb = is->video_st->time_base; + AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL); + + AVFilterGraph *graph = NULL; + AVFilterContext *filt_out = NULL, *filt_in = NULL; + int last_w = 0; + int last_h = 0; + enum AVPixelFormat last_format = -2; + int last_serial = -1; + int last_vfilter_idx = 0; + + if (!frame) + return AVERROR(ENOMEM); + + for (;;) { + ret = get_video_frame(is, frame); + if (ret < 0) + goto the_end; + if (!ret) + continue; + + if ( last_w != frame->width + || last_h != frame->height + || last_format != frame->format + || last_serial != is->viddec.pkt_serial + || last_vfilter_idx != is->vfilter_idx) { + av_log(NULL, AV_LOG_DEBUG, + "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", + last_w, last_h, + (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, + frame->width, frame->height, + (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial); + avfilter_graph_free(&graph); + graph = avfilter_graph_alloc(); + if (!graph) { + ret = AVERROR(ENOMEM); + goto the_end; + } + graph->nb_threads = filter_nbthreads; + if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) { + SDL_Event event; + event.type = FF_QUIT_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + goto the_end; + } + filt_in = is->in_video_filter; + filt_out = is->out_video_filter; + last_w = frame->width; + last_h = frame->height; + last_format = frame->format; + last_serial = is->viddec.pkt_serial; + last_vfilter_idx = is->vfilter_idx; + frame_rate = av_buffersink_get_frame_rate(filt_out); + } + + ret = av_buffersrc_add_frame(filt_in, frame); + if (ret < 0) + goto the_end; + + while (ret >= 0) { + FrameData *fd; + + is->frame_last_returned_time = av_gettime_relative() / 1000000.0; + + ret = av_buffersink_get_frame_flags(filt_out, frame, 0); + if (ret < 0) { + if (ret == AVERROR_EOF) + is->viddec.finished = is->viddec.pkt_serial; + ret = 0; + break; + } + + fd = frame->opaque_ref ? (FrameData*)frame->opaque_ref->data : NULL; + + is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time; + if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) + is->frame_last_filter_delay = 0; + tb = av_buffersink_get_time_base(filt_out); + duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0); + pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); + ret = queue_picture(is, frame, pts, duration, fd ? fd->pkt_pos : -1, is->viddec.pkt_serial); + av_frame_unref(frame); + if (is->videoq.serial != is->viddec.pkt_serial) + break; + } + + if (ret < 0) + goto the_end; + } + the_end: + avfilter_graph_free(&graph); + av_frame_free(&frame); + return 0; +} + +static int subtitle_thread(void *arg) +{ + VideoState *is = arg; + Frame *sp; + int got_subtitle; + double pts; + + for (;;) { + if (!(sp = frame_queue_peek_writable(&is->subpq))) + return 0; + + if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0) + break; + + pts = 0; + + if (got_subtitle && sp->sub.format == 0) { + if (sp->sub.pts != AV_NOPTS_VALUE) + pts = sp->sub.pts / (double)AV_TIME_BASE; + sp->pts = pts; + sp->serial = is->subdec.pkt_serial; + sp->width = is->subdec.avctx->width; + sp->height = is->subdec.avctx->height; + sp->uploaded = 0; + + /* now we can update the picture count */ + frame_queue_push(&is->subpq); + } else if (got_subtitle) { + avsubtitle_free(&sp->sub); + } + } + return 0; +} + +/* copy samples for viewing in editor window */ +static void update_sample_display(VideoState *is, short *samples, int samples_size) +{ + int size, len; + + size = samples_size / sizeof(short); + while (size > 0) { + len = SAMPLE_ARRAY_SIZE - is->sample_array_index; + if (len > size) + len = size; + memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); + samples += len; + is->sample_array_index += len; + if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) + is->sample_array_index = 0; + size -= len; + } +} + +/* return the wanted number of samples to get better sync if sync_type is video + * or external master clock */ +static int synchronize_audio(VideoState *is, int nb_samples) +{ + int wanted_nb_samples = nb_samples; + + /* if not master, then we try to remove or add samples to correct the clock */ + if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { + double diff, avg_diff; + int min_nb_samples, max_nb_samples; + + diff = get_clock(&is->audclk) - get_master_clock(is); + + if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { + is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; + if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { + /* not enough measures to have a correct estimate */ + is->audio_diff_avg_count++; + } else { + /* estimate the A-V difference */ + avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); + + if (fabs(avg_diff) >= is->audio_diff_threshold) { + wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); + min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); + max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); + wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples); + } + av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", + diff, avg_diff, wanted_nb_samples - nb_samples, + is->audio_clock, is->audio_diff_threshold); + } + } else { + /* too big difference : may be initial PTS errors, so + reset A-V filter */ + is->audio_diff_avg_count = 0; + is->audio_diff_cum = 0; + } + } + + return wanted_nb_samples; +} + +/** + * Decode one audio frame and return its uncompressed size. + * + * The processed audio frame is decoded, converted if required, and + * stored in is->audio_buf, with size in bytes given by the return + * value. + */ +static int audio_decode_frame(VideoState *is) +{ + int data_size, resampled_data_size; + av_unused double audio_clock0; + int wanted_nb_samples; + Frame *af; + + if (is->paused) + return -1; + + do { +#if defined(_WIN32) + while (frame_queue_nb_remaining(&is->sampq) == 0) { + if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2) + return -1; + av_usleep (1000); + } +#endif + if (!(af = frame_queue_peek_readable(&is->sampq))) + return -1; + frame_queue_next(&is->sampq); + } while (af->serial != is->audioq.serial); + + data_size = av_samples_get_buffer_size(NULL, af->frame->ch_layout.nb_channels, + af->frame->nb_samples, + af->frame->format, 1); + + wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples); + + if (af->frame->format != is->audio_src.fmt || + av_channel_layout_compare(&af->frame->ch_layout, &is->audio_src.ch_layout) || + af->frame->sample_rate != is->audio_src.freq || + (wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) { + swr_free(&is->swr_ctx); + swr_alloc_set_opts2(&is->swr_ctx, + &is->audio_tgt.ch_layout, is->audio_tgt.fmt, is->audio_tgt.freq, + &af->frame->ch_layout, af->frame->format, af->frame->sample_rate, + 0, NULL); + if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { + av_log(NULL, AV_LOG_ERROR, + "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", + af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), af->frame->ch_layout.nb_channels, + is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.ch_layout.nb_channels); + swr_free(&is->swr_ctx); + return -1; + } + if (av_channel_layout_copy(&is->audio_src.ch_layout, &af->frame->ch_layout) < 0) + return -1; + is->audio_src.freq = af->frame->sample_rate; + is->audio_src.fmt = af->frame->format; + } + + if (is->swr_ctx) { + const uint8_t **in = (const uint8_t **)af->frame->extended_data; + uint8_t **out = &is->audio_buf1; + int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256; + int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.ch_layout.nb_channels, out_count, is->audio_tgt.fmt, 0); + int len2; + if (out_size < 0) { + av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n"); + return -1; + } + if (wanted_nb_samples != af->frame->nb_samples) { + if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate, + wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) { + av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n"); + return -1; + } + } + av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); + if (!is->audio_buf1) + return AVERROR(ENOMEM); + len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples); + if (len2 < 0) { + av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n"); + return -1; + } + if (len2 == out_count) { + av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n"); + if (swr_init(is->swr_ctx) < 0) + swr_free(&is->swr_ctx); + } + is->audio_buf = is->audio_buf1; + resampled_data_size = len2 * is->audio_tgt.ch_layout.nb_channels * av_get_bytes_per_sample(is->audio_tgt.fmt); + } else { + is->audio_buf = af->frame->data[0]; + resampled_data_size = data_size; + } + + audio_clock0 = is->audio_clock; + /* update the audio clock with the pts */ + if (!isnan(af->pts)) + is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate; + else + is->audio_clock = NAN; + is->audio_clock_serial = af->serial; +#ifdef DEBUG + { + static double last_clock; + printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", + is->audio_clock - last_clock, + is->audio_clock, audio_clock0); + last_clock = is->audio_clock; + } +#endif + return resampled_data_size; +} + +/* prepare a new audio buffer */ +static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) +{ + VideoState *is = opaque; + int audio_size, len1; + + audio_callback_time = av_gettime_relative(); + + while (len > 0) { + if (is->audio_buf_index >= is->audio_buf_size) { + audio_size = audio_decode_frame(is); + if (audio_size < 0) { + /* if error, just output silence */ + is->audio_buf = NULL; + is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size; + } else { + if (is->show_mode != SHOW_MODE_VIDEO) + update_sample_display(is, (int16_t *)is->audio_buf, audio_size); + is->audio_buf_size = audio_size; + } + is->audio_buf_index = 0; + } + len1 = is->audio_buf_size - is->audio_buf_index; + if (len1 > len) + len1 = len; + if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME) + memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); + else { + memset(stream, 0, len1); + if (!is->muted && is->audio_buf) + SDL_MixAudioFormat(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, AUDIO_S16SYS, len1, is->audio_volume); + } + len -= len1; + stream += len1; + is->audio_buf_index += len1; + } + is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; + /* Let's assume the audio driver that is used by SDL has two periods. */ + if (!isnan(is->audio_clock)) { + set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0); + sync_clock_to_slave(&is->extclk, &is->audclk); + } +} + +static int audio_open(void *opaque, AVChannelLayout *wanted_channel_layout, int wanted_sample_rate, struct AudioParams *audio_hw_params) +{ + SDL_AudioSpec wanted_spec, spec; + const char *env; + static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; + static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000}; + int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1; + int wanted_nb_channels = wanted_channel_layout->nb_channels; + + env = SDL_getenv("SDL_AUDIO_CHANNELS"); + if (env) { + wanted_nb_channels = atoi(env); + av_channel_layout_uninit(wanted_channel_layout); + av_channel_layout_default(wanted_channel_layout, wanted_nb_channels); + } + if (wanted_channel_layout->order != AV_CHANNEL_ORDER_NATIVE) { + av_channel_layout_uninit(wanted_channel_layout); + av_channel_layout_default(wanted_channel_layout, wanted_nb_channels); + } + wanted_nb_channels = wanted_channel_layout->nb_channels; + wanted_spec.channels = wanted_nb_channels; + wanted_spec.freq = wanted_sample_rate; + if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { + av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n"); + return -1; + } + while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq) + next_sample_rate_idx--; + wanted_spec.format = AUDIO_S16SYS; + wanted_spec.silence = 0; + wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC)); + wanted_spec.callback = sdl_audio_callback; + wanted_spec.userdata = opaque; + while (!(audio_dev = SDL_OpenAudioDevice(NULL, 0, &wanted_spec, &spec, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE | SDL_AUDIO_ALLOW_CHANNELS_CHANGE))) { + av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n", + wanted_spec.channels, wanted_spec.freq, SDL_GetError()); + wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; + if (!wanted_spec.channels) { + wanted_spec.freq = next_sample_rates[next_sample_rate_idx--]; + wanted_spec.channels = wanted_nb_channels; + if (!wanted_spec.freq) { + av_log(NULL, AV_LOG_ERROR, + "No more combinations to try, audio open failed\n"); + return -1; + } + } + av_channel_layout_default(wanted_channel_layout, wanted_spec.channels); + } + if (spec.format != AUDIO_S16SYS) { + av_log(NULL, AV_LOG_ERROR, + "SDL advised audio format %d is not supported!\n", spec.format); + return -1; + } + if (spec.channels != wanted_spec.channels) { + av_channel_layout_uninit(wanted_channel_layout); + av_channel_layout_default(wanted_channel_layout, spec.channels); + if (wanted_channel_layout->order != AV_CHANNEL_ORDER_NATIVE) { + av_log(NULL, AV_LOG_ERROR, + "SDL advised channel count %d is not supported!\n", spec.channels); + return -1; + } + } + + audio_hw_params->fmt = AV_SAMPLE_FMT_S16; + audio_hw_params->freq = spec.freq; + if (av_channel_layout_copy(&audio_hw_params->ch_layout, wanted_channel_layout) < 0) + return -1; + audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->ch_layout.nb_channels, 1, audio_hw_params->fmt, 1); + audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->ch_layout.nb_channels, audio_hw_params->freq, audio_hw_params->fmt, 1); + if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) { + av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n"); + return -1; + } + return spec.size; +} + +/* open a given stream. Return 0 if OK */ +static int stream_component_open(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecContext *avctx; + const AVCodec *codec; + const char *forced_codec_name = NULL; + AVDictionary *opts = NULL; + const AVDictionaryEntry *t = NULL; + int sample_rate; + AVChannelLayout ch_layout = { 0 }; + int ret = 0; + int stream_lowres = lowres; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return -1; + + avctx = avcodec_alloc_context3(NULL); + if (!avctx) + return AVERROR(ENOMEM); + + ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar); + if (ret < 0) + goto fail; + avctx->pkt_timebase = ic->streams[stream_index]->time_base; + + codec = avcodec_find_decoder(avctx->codec_id); + + switch(avctx->codec_type){ + case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; + case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; + case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; + } + if (forced_codec_name) + codec = avcodec_find_decoder_by_name(forced_codec_name); + if (!codec) { + if (forced_codec_name) av_log(NULL, AV_LOG_WARNING, + "No codec could be found with name '%s'\n", forced_codec_name); + else av_log(NULL, AV_LOG_WARNING, + "No decoder could be found for codec %s\n", avcodec_get_name(avctx->codec_id)); + ret = AVERROR(EINVAL); + goto fail; + } + + avctx->codec_id = codec->id; + if (stream_lowres > codec->max_lowres) { + av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", + codec->max_lowres); + stream_lowres = codec->max_lowres; + } + avctx->lowres = stream_lowres; + + if (fast) + avctx->flags2 |= AV_CODEC_FLAG2_FAST; + + ret = filter_codec_opts(codec_opts, avctx->codec_id, ic, + ic->streams[stream_index], codec, &opts); + if (ret < 0) + goto fail; + + if (!av_dict_get(opts, "threads", NULL, 0)) + av_dict_set(&opts, "threads", "auto", 0); + if (stream_lowres) + av_dict_set_int(&opts, "lowres", stream_lowres, 0); + + av_dict_set(&opts, "flags", "+copy_opaque", AV_DICT_MULTIKEY); + + if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) { + goto fail; + } + if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + ret = AVERROR_OPTION_NOT_FOUND; + goto fail; + } + + is->eof = 0; + ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; + switch (avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + { + AVFilterContext *sink; + + is->audio_filter_src.freq = avctx->sample_rate; + ret = av_channel_layout_copy(&is->audio_filter_src.ch_layout, &avctx->ch_layout); + if (ret < 0) + goto fail; + is->audio_filter_src.fmt = avctx->sample_fmt; + if ((ret = configure_audio_filters(is, afilters, 0)) < 0) + goto fail; + sink = is->out_audio_filter; + sample_rate = av_buffersink_get_sample_rate(sink); + ret = av_buffersink_get_ch_layout(sink, &ch_layout); + if (ret < 0) + goto fail; + } + + /* prepare audio output */ + if ((ret = audio_open(is, &ch_layout, sample_rate, &is->audio_tgt)) < 0) + goto fail; + is->audio_hw_buf_size = ret; + is->audio_src = is->audio_tgt; + is->audio_buf_size = 0; + is->audio_buf_index = 0; + + /* init averaging filter */ + is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); + is->audio_diff_avg_count = 0; + /* since we do not have a precise anough audio FIFO fullness, + we correct audio sync only if larger than this threshold */ + is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec; + + is->audio_stream = stream_index; + is->audio_st = ic->streams[stream_index]; + + if ((ret = decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread)) < 0) + goto fail; + if (is->ic->iformat->flags & AVFMT_NOTIMESTAMPS) { + is->auddec.start_pts = is->audio_st->start_time; + is->auddec.start_pts_tb = is->audio_st->time_base; + } + if ((ret = decoder_start(&is->auddec, audio_thread, "audio_decoder", is)) < 0) + goto out; + SDL_PauseAudioDevice(audio_dev, 0); + break; + case AVMEDIA_TYPE_VIDEO: + is->video_stream = stream_index; + is->video_st = ic->streams[stream_index]; + + if ((ret = decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread)) < 0) + goto fail; + if ((ret = decoder_start(&is->viddec, video_thread, "video_decoder", is)) < 0) + goto out; + is->queue_attachments_req = 1; + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_stream = stream_index; + is->subtitle_st = ic->streams[stream_index]; + + if ((ret = decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread)) < 0) + goto fail; + if ((ret = decoder_start(&is->subdec, subtitle_thread, "subtitle_decoder", is)) < 0) + goto out; + break; + default: + break; + } + goto out; + +fail: + avcodec_free_context(&avctx); +out: + av_channel_layout_uninit(&ch_layout); + av_dict_free(&opts); + + return ret; +} + +static int decode_interrupt_cb(void *ctx) +{ + VideoState *is = ctx; + return is->abort_request; +} + +static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue) { + return stream_id < 0 || + queue->abort_request || + (st->disposition & AV_DISPOSITION_ATTACHED_PIC) || + queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0); +} + +static int is_realtime(AVFormatContext *s) +{ + if( !strcmp(s->iformat->name, "rtp") + || !strcmp(s->iformat->name, "rtsp") + || !strcmp(s->iformat->name, "sdp") + ) + return 1; + + if(s->pb && ( !strncmp(s->url, "rtp:", 4) + || !strncmp(s->url, "udp:", 4) + ) + ) + return 1; + return 0; +} + +/* this thread gets the stream from the disk or the network */ +static int read_thread(void *arg) +{ + VideoState *is = arg; + AVFormatContext *ic = NULL; + int err, i, ret; + int st_index[AVMEDIA_TYPE_NB]; + AVPacket *pkt = NULL; + int64_t stream_start_time; + int pkt_in_play_range = 0; + const AVDictionaryEntry *t; + SDL_mutex *wait_mutex = SDL_CreateMutex(); + int scan_all_pmts_set = 0; + int64_t pkt_ts; + + if (!wait_mutex) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + ret = AVERROR(ENOMEM); + goto fail; + } + + memset(st_index, -1, sizeof(st_index)); + is->eof = 0; + + pkt = av_packet_alloc(); + if (!pkt) { + av_log(NULL, AV_LOG_FATAL, "Could not allocate packet.\n"); + ret = AVERROR(ENOMEM); + goto fail; + } + ic = avformat_alloc_context(); + if (!ic) { + av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); + ret = AVERROR(ENOMEM); + goto fail; + } + ic->interrupt_callback.callback = decode_interrupt_cb; + ic->interrupt_callback.opaque = is; + if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) { + av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE); + scan_all_pmts_set = 1; + } + err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); + if (err < 0) { + print_error(is->filename, err); + ret = -1; + goto fail; + } + if (scan_all_pmts_set) + av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE); + + if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + ret = AVERROR_OPTION_NOT_FOUND; + goto fail; + } + is->ic = ic; + + if (genpts) + ic->flags |= AVFMT_FLAG_GENPTS; + + if (find_stream_info) { + AVDictionary **opts; + int orig_nb_streams = ic->nb_streams; + + err = setup_find_stream_info_opts(ic, codec_opts, &opts); + if (err < 0) { + av_log(NULL, AV_LOG_ERROR, + "Error setting up avformat_find_stream_info() options\n"); + ret = err; + goto fail; + } + + err = avformat_find_stream_info(ic, opts); + + for (i = 0; i < orig_nb_streams; i++) + av_dict_free(&opts[i]); + av_freep(&opts); + + if (err < 0) { + av_log(NULL, AV_LOG_WARNING, + "%s: could not find codec parameters\n", is->filename); + ret = -1; + goto fail; + } + } + + if (ic->pb) + ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end + + if (seek_by_bytes < 0) + seek_by_bytes = !(ic->iformat->flags & AVFMT_NO_BYTE_SEEK) && + !!(ic->iformat->flags & AVFMT_TS_DISCONT) && + strcmp("ogg", ic->iformat->name); + + is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; + + if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) + window_title = av_asprintf("%s - %s", t->value, input_filename); + + /* if seeking requested, we execute it */ + if (start_time != AV_NOPTS_VALUE) { + int64_t timestamp; + + timestamp = start_time; + /* add the stream start time */ + if (ic->start_time != AV_NOPTS_VALUE) + timestamp += ic->start_time; + ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); + if (ret < 0) { + av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", + is->filename, (double)timestamp / AV_TIME_BASE); + } + } + + is->realtime = is_realtime(ic); + + if (show_status) + av_dump_format(ic, 0, is->filename, 0); + + for (i = 0; i < ic->nb_streams; i++) { + AVStream *st = ic->streams[i]; + enum AVMediaType type = st->codecpar->codec_type; + st->discard = AVDISCARD_ALL; + if (type >= 0 && wanted_stream_spec[type] && st_index[type] == -1) + if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0) + st_index[type] = i; + } + for (i = 0; i < AVMEDIA_TYPE_NB; i++) { + if (wanted_stream_spec[i] && st_index[i] == -1) { + av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i)); + st_index[i] = INT_MAX; + } + } + + if (!video_disable) + st_index[AVMEDIA_TYPE_VIDEO] = + av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, + st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); + if (!audio_disable) + st_index[AVMEDIA_TYPE_AUDIO] = + av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, + st_index[AVMEDIA_TYPE_AUDIO], + st_index[AVMEDIA_TYPE_VIDEO], + NULL, 0); + if (!video_disable && !subtitle_disable) + st_index[AVMEDIA_TYPE_SUBTITLE] = + av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, + st_index[AVMEDIA_TYPE_SUBTITLE], + (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? + st_index[AVMEDIA_TYPE_AUDIO] : + st_index[AVMEDIA_TYPE_VIDEO]), + NULL, 0); + + is->show_mode = show_mode; + if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { + AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; + AVCodecParameters *codecpar = st->codecpar; + AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); + if (codecpar->width) + set_default_window_size(codecpar->width, codecpar->height, sar); + } + + /* open the streams */ + if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); + } + + ret = -1; + if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { + ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); + } + if (is->show_mode == SHOW_MODE_NONE) + is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; + + if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); + } + + if (is->video_stream < 0 && is->audio_stream < 0) { + av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", + is->filename); + ret = -1; + goto fail; + } + + if (infinite_buffer < 0 && is->realtime) + infinite_buffer = 1; + + for (;;) { + if (is->abort_request) + break; + if (is->paused != is->last_paused) { + is->last_paused = is->paused; + if (is->paused) + is->read_pause_return = av_read_pause(ic); + else + av_read_play(ic); + } +#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL + if (is->paused && + (!strcmp(ic->iformat->name, "rtsp") || + (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { + /* wait 10 ms to avoid trying to get another packet */ + /* XXX: horrible */ + SDL_Delay(10); + continue; + } +#endif + if (is->seek_req) { + int64_t seek_target = is->seek_pos; + int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; + int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; +// FIXME the +-2 is due to rounding being not done in the correct direction in generation +// of the seek_pos/seek_rel variables + + ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, + "%s: error while seeking\n", is->ic->url); + } else { + if (is->audio_stream >= 0) + packet_queue_flush(&is->audioq); + if (is->subtitle_stream >= 0) + packet_queue_flush(&is->subtitleq); + if (is->video_stream >= 0) + packet_queue_flush(&is->videoq); + if (is->seek_flags & AVSEEK_FLAG_BYTE) { + set_clock(&is->extclk, NAN, 0); + } else { + set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); + } + } + is->seek_req = 0; + is->queue_attachments_req = 1; + is->eof = 0; + if (is->paused) + step_to_next_frame(is); + } + if (is->queue_attachments_req) { + if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { + if ((ret = av_packet_ref(pkt, &is->video_st->attached_pic)) < 0) + goto fail; + packet_queue_put(&is->videoq, pkt); + packet_queue_put_nullpacket(&is->videoq, pkt, is->video_stream); + } + is->queue_attachments_req = 0; + } + + /* if the queue are full, no need to read more */ + if (infinite_buffer<1 && + (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE + || (stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq) && + stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq) && + stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq)))) { + /* wait 10 ms */ + SDL_LockMutex(wait_mutex); + SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); + SDL_UnlockMutex(wait_mutex); + continue; + } + if (!is->paused && + (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) && + (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) { + if (loop != 1 && (!loop || --loop)) { + stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); + } else if (autoexit) { + ret = AVERROR_EOF; + goto fail; + } + } + ret = av_read_frame(ic, pkt); + if (ret < 0) { + if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) { + if (is->video_stream >= 0) + packet_queue_put_nullpacket(&is->videoq, pkt, is->video_stream); + if (is->audio_stream >= 0) + packet_queue_put_nullpacket(&is->audioq, pkt, is->audio_stream); + if (is->subtitle_stream >= 0) + packet_queue_put_nullpacket(&is->subtitleq, pkt, is->subtitle_stream); + is->eof = 1; + } + if (ic->pb && ic->pb->error) { + if (autoexit) + goto fail; + else + break; + } + SDL_LockMutex(wait_mutex); + SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); + SDL_UnlockMutex(wait_mutex); + continue; + } else { + is->eof = 0; + } + /* check if packet is in play range specified by user, then queue, otherwise discard */ + stream_start_time = ic->streams[pkt->stream_index]->start_time; + pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts; + pkt_in_play_range = duration == AV_NOPTS_VALUE || + (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * + av_q2d(ic->streams[pkt->stream_index]->time_base) - + (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 + <= ((double)duration / 1000000); + if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { + packet_queue_put(&is->audioq, pkt); + } else if (pkt->stream_index == is->video_stream && pkt_in_play_range + && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { + packet_queue_put(&is->videoq, pkt); + } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { + packet_queue_put(&is->subtitleq, pkt); + } else { + av_packet_unref(pkt); + } + } + + ret = 0; + fail: + if (ic && !is->ic) + avformat_close_input(&ic); + + av_packet_free(&pkt); + if (ret != 0) { + SDL_Event event; + + event.type = FF_QUIT_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + } + SDL_DestroyMutex(wait_mutex); + return 0; +} + +static VideoState *stream_open(const char *filename, + const AVInputFormat *iformat) +{ + VideoState *is; + + is = av_mallocz(sizeof(VideoState)); + if (!is) + return NULL; + is->last_video_stream = is->video_stream = -1; + is->last_audio_stream = is->audio_stream = -1; + is->last_subtitle_stream = is->subtitle_stream = -1; + is->filename = av_strdup(filename); + if (!is->filename) + goto fail; + is->iformat = iformat; + is->ytop = 0; + is->xleft = 0; + + /* start video display */ + if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0) + goto fail; + if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0) + goto fail; + if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0) + goto fail; + + if (packet_queue_init(&is->videoq) < 0 || + packet_queue_init(&is->audioq) < 0 || + packet_queue_init(&is->subtitleq) < 0) + goto fail; + + if (!(is->continue_read_thread = SDL_CreateCond())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + goto fail; + } + + init_clock(&is->vidclk, &is->videoq.serial); + init_clock(&is->audclk, &is->audioq.serial); + init_clock(&is->extclk, &is->extclk.serial); + is->audio_clock_serial = -1; + if (startup_volume < 0) + av_log(NULL, AV_LOG_WARNING, "-volume=%d < 0, setting to 0\n", startup_volume); + if (startup_volume > 100) + av_log(NULL, AV_LOG_WARNING, "-volume=%d > 100, setting to 100\n", startup_volume); + startup_volume = av_clip(startup_volume, 0, 100); + startup_volume = av_clip(SDL_MIX_MAXVOLUME * startup_volume / 100, 0, SDL_MIX_MAXVOLUME); + is->audio_volume = startup_volume; + is->muted = 0; + is->av_sync_type = av_sync_type; + is->read_tid = SDL_CreateThread(read_thread, "read_thread", is); + if (!is->read_tid) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError()); +fail: + stream_close(is); + return NULL; + } + return is; +} + +static void stream_cycle_channel(VideoState *is, int codec_type) +{ + AVFormatContext *ic = is->ic; + int start_index, stream_index; + int old_index; + AVStream *st; + AVProgram *p = NULL; + int nb_streams = is->ic->nb_streams; + + if (codec_type == AVMEDIA_TYPE_VIDEO) { + start_index = is->last_video_stream; + old_index = is->video_stream; + } else if (codec_type == AVMEDIA_TYPE_AUDIO) { + start_index = is->last_audio_stream; + old_index = is->audio_stream; + } else { + start_index = is->last_subtitle_stream; + old_index = is->subtitle_stream; + } + stream_index = start_index; + + if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) { + p = av_find_program_from_stream(ic, NULL, is->video_stream); + if (p) { + nb_streams = p->nb_stream_indexes; + for (start_index = 0; start_index < nb_streams; start_index++) + if (p->stream_index[start_index] == stream_index) + break; + if (start_index == nb_streams) + start_index = -1; + stream_index = start_index; + } + } + + for (;;) { + if (++stream_index >= nb_streams) + { + if (codec_type == AVMEDIA_TYPE_SUBTITLE) + { + stream_index = -1; + is->last_subtitle_stream = -1; + goto the_end; + } + if (start_index == -1) + return; + stream_index = 0; + } + if (stream_index == start_index) + return; + st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index]; + if (st->codecpar->codec_type == codec_type) { + /* check that parameters are OK */ + switch (codec_type) { + case AVMEDIA_TYPE_AUDIO: + if (st->codecpar->sample_rate != 0 && + st->codecpar->ch_layout.nb_channels != 0) + goto the_end; + break; + case AVMEDIA_TYPE_VIDEO: + case AVMEDIA_TYPE_SUBTITLE: + goto the_end; + default: + break; + } + } + } + the_end: + if (p && stream_index != -1) + stream_index = p->stream_index[stream_index]; + av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n", + av_get_media_type_string(codec_type), + old_index, + stream_index); + + stream_component_close(is, old_index); + stream_component_open(is, stream_index); +} + + +static void toggle_full_screen(VideoState *is) +{ + is_full_screen = !is_full_screen; + SDL_SetWindowFullscreen(window, is_full_screen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0); +} + +static void toggle_audio_display(VideoState *is) +{ + int next = is->show_mode; + do { + next = (next + 1) % SHOW_MODE_NB; + } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); + if (is->show_mode != next) { + is->force_refresh = 1; + is->show_mode = next; + } +} + +static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { + double remaining_time = 0.0; + SDL_PumpEvents(); + while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) { + if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) { + SDL_ShowCursor(0); + cursor_hidden = 1; + } + if (remaining_time > 0.0) + av_usleep((int64_t)(remaining_time * 1000000.0)); + remaining_time = REFRESH_RATE; + if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) + video_refresh(is, &remaining_time); + SDL_PumpEvents(); + } +} + +static void seek_chapter(VideoState *is, int incr) +{ + int64_t pos = get_master_clock(is) * AV_TIME_BASE; + int i; + + if (!is->ic->nb_chapters) + return; + + /* find the current chapter */ + for (i = 0; i < is->ic->nb_chapters; i++) { + AVChapter *ch = is->ic->chapters[i]; + if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { + i--; + break; + } + } + + i += incr; + i = FFMAX(i, 0); + if (i >= is->ic->nb_chapters) + return; + + av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); + stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, + AV_TIME_BASE_Q), 0, 0); +} + +/* handle an event sent by the GUI */ +static void event_loop(VideoState *cur_stream) +{ + SDL_Event event; + double incr, pos, frac; + + for (;;) { + double x; + refresh_loop_wait_event(cur_stream, &event); + switch (event.type) { + case SDL_KEYDOWN: + if (exit_on_keydown || event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q) { + do_exit(cur_stream); + break; + } + // If we don't yet have a window, skip all key events, because read_thread might still be initializing... + if (!cur_stream->width) + continue; + switch (event.key.keysym.sym) { + case SDLK_f: + toggle_full_screen(cur_stream); + cur_stream->force_refresh = 1; + break; + case SDLK_p: + case SDLK_SPACE: + toggle_pause(cur_stream); + break; + case SDLK_m: + toggle_mute(cur_stream); + break; + case SDLK_KP_MULTIPLY: + case SDLK_0: + update_volume(cur_stream, 1, SDL_VOLUME_STEP); + break; + case SDLK_KP_DIVIDE: + case SDLK_9: + update_volume(cur_stream, -1, SDL_VOLUME_STEP); + break; + case SDLK_s: // S: Step to next frame + step_to_next_frame(cur_stream); + break; + case SDLK_a: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); + break; + case SDLK_v: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); + break; + case SDLK_c: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); + break; + case SDLK_t: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); + break; + case SDLK_w: + if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) { + if (++cur_stream->vfilter_idx >= nb_vfilters) + cur_stream->vfilter_idx = 0; + } else { + cur_stream->vfilter_idx = 0; + toggle_audio_display(cur_stream); + } + break; + case SDLK_PAGEUP: + if (cur_stream->ic->nb_chapters <= 1) { + incr = 600.0; + goto do_seek; + } + seek_chapter(cur_stream, 1); + break; + case SDLK_PAGEDOWN: + if (cur_stream->ic->nb_chapters <= 1) { + incr = -600.0; + goto do_seek; + } + seek_chapter(cur_stream, -1); + break; + case SDLK_LEFT: + incr = seek_interval ? -seek_interval : -10.0; + goto do_seek; + case SDLK_RIGHT: + incr = seek_interval ? seek_interval : 10.0; + goto do_seek; + case SDLK_UP: + incr = 60.0; + goto do_seek; + case SDLK_DOWN: + incr = -60.0; + do_seek: + if (seek_by_bytes) { + pos = -1; + if (pos < 0 && cur_stream->video_stream >= 0) + pos = frame_queue_last_pos(&cur_stream->pictq); + if (pos < 0 && cur_stream->audio_stream >= 0) + pos = frame_queue_last_pos(&cur_stream->sampq); + if (pos < 0) + pos = avio_tell(cur_stream->ic->pb); + if (cur_stream->ic->bit_rate) + incr *= cur_stream->ic->bit_rate / 8.0; + else + incr *= 180000.0; + pos += incr; + stream_seek(cur_stream, pos, incr, 1); + } else { + pos = get_master_clock(cur_stream); + if (isnan(pos)) + pos = (double)cur_stream->seek_pos / AV_TIME_BASE; + pos += incr; + if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) + pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; + stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); + } + break; + default: + break; + } + break; + case SDL_MOUSEBUTTONDOWN: + if (exit_on_mousedown) { + do_exit(cur_stream); + break; + } + if (event.button.button == SDL_BUTTON_LEFT) { + static int64_t last_mouse_left_click = 0; + if (av_gettime_relative() - last_mouse_left_click <= 500000) { + toggle_full_screen(cur_stream); + cur_stream->force_refresh = 1; + last_mouse_left_click = 0; + } else { + last_mouse_left_click = av_gettime_relative(); + } + } + case SDL_MOUSEMOTION: + if (cursor_hidden) { + SDL_ShowCursor(1); + cursor_hidden = 0; + } + cursor_last_shown = av_gettime_relative(); + if (event.type == SDL_MOUSEBUTTONDOWN) { + if (event.button.button != SDL_BUTTON_RIGHT) + break; + x = event.button.x; + } else { + if (!(event.motion.state & SDL_BUTTON_RMASK)) + break; + x = event.motion.x; + } + if (seek_by_bytes || cur_stream->ic->duration <= 0) { + uint64_t size = avio_size(cur_stream->ic->pb); + stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); + } else { + int64_t ts; + int ns, hh, mm, ss; + int tns, thh, tmm, tss; + tns = cur_stream->ic->duration / 1000000LL; + thh = tns / 3600; + tmm = (tns % 3600) / 60; + tss = (tns % 60); + frac = x / cur_stream->width; + ns = frac * tns; + hh = ns / 3600; + mm = (ns % 3600) / 60; + ss = (ns % 60); + av_log(NULL, AV_LOG_INFO, + "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, + hh, mm, ss, thh, tmm, tss); + ts = frac * cur_stream->ic->duration; + if (cur_stream->ic->start_time != AV_NOPTS_VALUE) + ts += cur_stream->ic->start_time; + stream_seek(cur_stream, ts, 0, 0); + } + break; + case SDL_WINDOWEVENT: + switch (event.window.event) { + case SDL_WINDOWEVENT_SIZE_CHANGED: + screen_width = cur_stream->width = event.window.data1; + screen_height = cur_stream->height = event.window.data2; + if (cur_stream->vis_texture) { + SDL_DestroyTexture(cur_stream->vis_texture); + cur_stream->vis_texture = NULL; + } + case SDL_WINDOWEVENT_EXPOSED: + cur_stream->force_refresh = 1; + } + break; + case SDL_QUIT: + case FF_QUIT_EVENT: + do_exit(cur_stream); + break; + default: + break; + } + } +} + +static int opt_width(void *optctx, const char *opt, const char *arg) +{ + double num; + int ret = parse_number(opt, arg, OPT_INT64, 1, INT_MAX, &num); + if (ret < 0) + return ret; + + screen_width = num; + return 0; +} + +static int opt_height(void *optctx, const char *opt, const char *arg) +{ + double num; + int ret = parse_number(opt, arg, OPT_INT64, 1, INT_MAX, &num); + if (ret < 0) + return ret; + + screen_height = num; + return 0; +} + +static int opt_format(void *optctx, const char *opt, const char *arg) +{ + file_iformat = av_find_input_format(arg); + if (!file_iformat) { + av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg); + return AVERROR(EINVAL); + } + return 0; +} + +static int opt_sync(void *optctx, const char *opt, const char *arg) +{ + if (!strcmp(arg, "audio")) + av_sync_type = AV_SYNC_AUDIO_MASTER; + else if (!strcmp(arg, "video")) + av_sync_type = AV_SYNC_VIDEO_MASTER; + else if (!strcmp(arg, "ext")) + av_sync_type = AV_SYNC_EXTERNAL_CLOCK; + else { + av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg); + exit(1); + } + return 0; +} + +static int opt_show_mode(void *optctx, const char *opt, const char *arg) +{ + show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : + !strcmp(arg, "waves") ? SHOW_MODE_WAVES : + !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : SHOW_MODE_NONE; + + if (show_mode == SHOW_MODE_NONE) { + double num; + int ret = parse_number(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1, &num); + if (ret < 0) + return ret; + show_mode = num; + } + return 0; +} + +static int opt_input_file(void *optctx, const char *filename) +{ + if (input_filename) { + av_log(NULL, AV_LOG_FATAL, + "Argument '%s' provided as input filename, but '%s' was already specified.\n", + filename, input_filename); + return AVERROR(EINVAL); + } + if (!strcmp(filename, "-")) + filename = "fd:"; + input_filename = filename; + + return 0; +} + +static int opt_codec(void *optctx, const char *opt, const char *arg) +{ + const char *spec = strchr(opt, ':'); + if (!spec) { + av_log(NULL, AV_LOG_ERROR, + "No media specifier was specified in '%s' in option '%s'\n", + arg, opt); + return AVERROR(EINVAL); + } + spec++; + switch (spec[0]) { + case 'a' : audio_codec_name = arg; break; + case 's' : subtitle_codec_name = arg; break; + case 'v' : video_codec_name = arg; break; + default: + av_log(NULL, AV_LOG_ERROR, + "Invalid media specifier '%s' in option '%s'\n", spec, opt); + return AVERROR(EINVAL); + } + return 0; +} + +static int dummy; + +static const OptionDef options[] = { + CMDUTILS_COMMON_OPTIONS + { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, + { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, + { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, + { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, + { "vn", OPT_BOOL, { &video_disable }, "disable video" }, + { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, + { "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" }, + { "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" }, + { "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" }, + { "ss", HAS_ARG | OPT_TIME, { &start_time }, "seek to a given position in seconds", "pos" }, + { "t", HAS_ARG | OPT_TIME, { &duration }, "play \"duration\" seconds of audio/video", "duration" }, + { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, + { "seek_interval", OPT_FLOAT | HAS_ARG, { &seek_interval }, "set seek interval for left/right keys, in seconds", "seconds" }, + { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, + { "noborder", OPT_BOOL, { &borderless }, "borderless window" }, + { "alwaysontop", OPT_BOOL, { &alwaysontop }, "window always on top" }, + { "volume", OPT_INT | HAS_ARG, { &startup_volume}, "set startup volume 0=min 100=max", "volume" }, + { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, + { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, + { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, + { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, + { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, + { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, + { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, + { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, + { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, + { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, + { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, + { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, + { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, + { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, + { "left", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_left }, "set the x position for the left of the window", "x pos" }, + { "top", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_top }, "set the y position for the top of the window", "y pos" }, + { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" }, + { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, + { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, + { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, + { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, + { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, + { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, + { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, + { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, + { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, + { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info }, + "read and decode the streams to fill missing information with heuristics" }, + { "filter_threads", HAS_ARG | OPT_INT | OPT_EXPERT, { &filter_nbthreads }, "number of filter threads per graph" }, + { NULL, }, +}; + +static void show_usage(void) +{ + av_log(NULL, AV_LOG_INFO, "Simple media player\n"); + av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); + av_log(NULL, AV_LOG_INFO, "\n"); +} + +void show_help_default(const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + show_usage(); + show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); + show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); + printf("\n"); + show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); + show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); + show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); + printf("\nWhile playing:\n" + "q, ESC quit\n" + "f toggle full screen\n" + "p, SPC pause\n" + "m toggle mute\n" + "9, 0 decrease and increase volume respectively\n" + "/, * decrease and increase volume respectively\n" + "a cycle audio channel in the current program\n" + "v cycle video channel\n" + "t cycle subtitle channel in the current program\n" + "c cycle program\n" + "w cycle video filters or show modes\n" + "s activate frame-step mode\n" + "left/right seek backward/forward 10 seconds or to custom interval if -seek_interval is set\n" + "down/up seek backward/forward 1 minute\n" + "page down/page up seek backward/forward 10 minutes\n" + "right mouse click seek to percentage in file corresponding to fraction of width\n" + "left double-click toggle full screen\n" + ); +} + +/* Called from the main */ +int main(int argc, char **argv) +{ + int flags, ret; + VideoState *is; + + init_dynload(); + + av_log_set_flags(AV_LOG_SKIP_REPEATED); + parse_loglevel(argc, argv, options); + + /* register all codecs, demux and protocols */ +#if CONFIG_AVDEVICE + avdevice_register_all(); +#endif + avformat_network_init(); + + signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ + signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ + + show_banner(argc, argv, options); + + ret = parse_options(NULL, argc, argv, options, opt_input_file); + if (ret < 0) + exit(ret == AVERROR_EXIT ? 0 : 1); + + if (!input_filename) { + show_usage(); + av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n"); + av_log(NULL, AV_LOG_FATAL, + "Use -h to get full help or, even better, run 'man %s'\n", program_name); + exit(1); + } + + if (display_disable) { + video_disable = 1; + } + flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; + if (audio_disable) + flags &= ~SDL_INIT_AUDIO; + else { + /* Try to work around an occasional ALSA buffer underflow issue when the + * period size is NPOT due to ALSA resampling by forcing the buffer size. */ + if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE")) + SDL_setenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE","1", 1); + } + if (display_disable) + flags &= ~SDL_INIT_VIDEO; + if (SDL_Init (flags)) { + av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError()); + av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n"); + exit(1); + } + + SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); + SDL_EventState(SDL_USEREVENT, SDL_IGNORE); + + if (!display_disable) { + int flags = SDL_WINDOW_HIDDEN; + if (alwaysontop) +#if SDL_VERSION_ATLEAST(2,0,5) + flags |= SDL_WINDOW_ALWAYS_ON_TOP; +#else + av_log(NULL, AV_LOG_WARNING, "Your SDL version doesn't support SDL_WINDOW_ALWAYS_ON_TOP. Feature will be inactive.\n"); +#endif + if (borderless) + flags |= SDL_WINDOW_BORDERLESS; + else + flags |= SDL_WINDOW_RESIZABLE; + +#ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR + SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); +#endif + window = SDL_CreateWindow(program_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, default_width, default_height, flags); + SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear"); + if (window) { + renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); + if (!renderer) { + av_log(NULL, AV_LOG_WARNING, "Failed to initialize a hardware accelerated renderer: %s\n", SDL_GetError()); + renderer = SDL_CreateRenderer(window, -1, 0); + } + if (renderer) { + if (!SDL_GetRendererInfo(renderer, &renderer_info)) + av_log(NULL, AV_LOG_VERBOSE, "Initialized %s renderer.\n", renderer_info.name); + } + } + if (!window || !renderer || !renderer_info.num_texture_formats) { + av_log(NULL, AV_LOG_FATAL, "Failed to create window or renderer: %s", SDL_GetError()); + do_exit(NULL); + } + } + + is = stream_open(input_filename, file_iformat); + if (!is) { + av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n"); + do_exit(NULL); + } + + event_loop(is); + + /* never returns */ + + return 0; +} diff --git a/opt_common.c b/opt_common.c new file mode 100644 index 0000000..02d7048 --- /dev/null +++ b/opt_common.c @@ -0,0 +1,1471 @@ +/* + * Option handlers shared between the tools. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include + +#include "cmdutils.h" +#include "opt_common.h" + +#include "libavutil/avassert.h" +#include "libavutil/avstring.h" +#include "libavutil/bprint.h" +#include "libavutil/channel_layout.h" +#include "libavutil/cpu.h" +#include "libavutil/dict.h" +#include "libavutil/error.h" +#include "libavutil/ffversion.h" +#include "libavutil/log.h" +#include "libavutil/mem.h" +#include "libavutil/parseutils.h" +#include "libavutil/pixdesc.h" +#include "libavutil/version.h" + +#include "libavcodec/avcodec.h" +#include "libavcodec/bsf.h" +#include "libavcodec/codec.h" +#include "libavcodec/codec_desc.h" +#include "libavcodec/version.h" + +#include "libavformat/avformat.h" +#include "libavformat/version.h" + +#include "libavdevice/avdevice.h" +#include "libavdevice/version.h" + +#include "libavfilter/avfilter.h" +#include "libavfilter/version.h" + +#include "libswscale/swscale.h" +#include "libswscale/version.h" + +#include "libswresample/swresample.h" +#include "libswresample/version.h" + +#include "libpostproc/postprocess.h" +#include "libpostproc/version.h" + +enum show_muxdemuxers { + SHOW_DEFAULT, + SHOW_DEMUXERS, + SHOW_MUXERS, +}; + +static FILE *report_file; +static int report_file_level = AV_LOG_DEBUG; + +int show_license(void *optctx, const char *opt, const char *arg) +{ +#if CONFIG_NONFREE + printf( + "This version of %s has nonfree parts compiled in.\n" + "Therefore it is not legally redistributable.\n", + program_name ); +#elif CONFIG_GPLV3 + printf( + "%s is free software; you can redistribute it and/or modify\n" + "it under the terms of the GNU General Public License as published by\n" + "the Free Software Foundation; either version 3 of the License, or\n" + "(at your option) any later version.\n" + "\n" + "%s is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" + "GNU General Public License for more details.\n" + "\n" + "You should have received a copy of the GNU General Public License\n" + "along with %s. If not, see .\n", + program_name, program_name, program_name ); +#elif CONFIG_GPL + printf( + "%s is free software; you can redistribute it and/or modify\n" + "it under the terms of the GNU General Public License as published by\n" + "the Free Software Foundation; either version 2 of the License, or\n" + "(at your option) any later version.\n" + "\n" + "%s is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" + "GNU General Public License for more details.\n" + "\n" + "You should have received a copy of the GNU General Public License\n" + "along with %s; if not, write to the Free Software\n" + "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n", + program_name, program_name, program_name ); +#elif CONFIG_LGPLV3 + printf( + "%s is free software; you can redistribute it and/or modify\n" + "it under the terms of the GNU Lesser General Public License as published by\n" + "the Free Software Foundation; either version 3 of the License, or\n" + "(at your option) any later version.\n" + "\n" + "%s is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" + "GNU Lesser General Public License for more details.\n" + "\n" + "You should have received a copy of the GNU Lesser General Public License\n" + "along with %s. If not, see .\n", + program_name, program_name, program_name ); +#else + printf( + "%s is free software; you can redistribute it and/or\n" + "modify it under the terms of the GNU Lesser General Public\n" + "License as published by the Free Software Foundation; either\n" + "version 2.1 of the License, or (at your option) any later version.\n" + "\n" + "%s is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" + "Lesser General Public License for more details.\n" + "\n" + "You should have received a copy of the GNU Lesser General Public\n" + "License along with %s; if not, write to the Free Software\n" + "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n", + program_name, program_name, program_name ); +#endif + + return 0; +} + +static int warned_cfg = 0; + +#define INDENT 1 +#define SHOW_VERSION 2 +#define SHOW_CONFIG 4 +#define SHOW_COPYRIGHT 8 + +#define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \ + if (CONFIG_##LIBNAME) { \ + const char *indent = flags & INDENT? " " : ""; \ + if (flags & SHOW_VERSION) { \ + unsigned int version = libname##_version(); \ + av_log(NULL, level, \ + "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \ + indent, #libname, \ + LIB##LIBNAME##_VERSION_MAJOR, \ + LIB##LIBNAME##_VERSION_MINOR, \ + LIB##LIBNAME##_VERSION_MICRO, \ + AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\ + AV_VERSION_MICRO(version)); \ + } \ + if (flags & SHOW_CONFIG) { \ + const char *cfg = libname##_configuration(); \ + if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \ + if (!warned_cfg) { \ + av_log(NULL, level, \ + "%sWARNING: library configuration mismatch\n", \ + indent); \ + warned_cfg = 1; \ + } \ + av_log(NULL, level, "%s%-11s configuration: %s\n", \ + indent, #libname, cfg); \ + } \ + } \ + } \ + +static void print_all_libs_info(int flags, int level) +{ + PRINT_LIB_INFO(avutil, AVUTIL, flags, level); + PRINT_LIB_INFO(avcodec, AVCODEC, flags, level); + PRINT_LIB_INFO(avformat, AVFORMAT, flags, level); + PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level); + PRINT_LIB_INFO(avfilter, AVFILTER, flags, level); + PRINT_LIB_INFO(swscale, SWSCALE, flags, level); + PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level); + PRINT_LIB_INFO(postproc, POSTPROC, flags, level); +} + +static void print_program_info(int flags, int level) +{ + const char *indent = flags & INDENT? " " : ""; + + av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name); + if (flags & SHOW_COPYRIGHT) + av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers", + program_birth_year, CONFIG_THIS_YEAR); + av_log(NULL, level, "\n"); + av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT); + + av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent); +} + +static void print_buildconf(int flags, int level) +{ + const char *indent = flags & INDENT ? " " : ""; + char str[] = { FFMPEG_CONFIGURATION }; + char *conflist, *remove_tilde, *splitconf; + + // Change all the ' --' strings to '~--' so that + // they can be identified as tokens. + while ((conflist = strstr(str, " --")) != NULL) { + conflist[0] = '~'; + } + + // Compensate for the weirdness this would cause + // when passing 'pkg-config --static'. + while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) { + remove_tilde[sizeof("pkg-config~") - 2] = ' '; + } + + splitconf = strtok(str, "~"); + av_log(NULL, level, "\n%sconfiguration:\n", indent); + while (splitconf != NULL) { + av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf); + splitconf = strtok(NULL, "~"); + } +} + +void show_banner(int argc, char **argv, const OptionDef *options) +{ + int idx = locate_option(argc, argv, options, "version"); + if (hide_banner || idx) + return; + + print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO); + print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO); + print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO); +} + +int show_version(void *optctx, const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO); + print_all_libs_info(SHOW_VERSION, AV_LOG_INFO); + + return 0; +} + +int show_buildconf(void *optctx, const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + print_buildconf (INDENT|0, AV_LOG_INFO); + + return 0; +} + +#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \ + if (codec->field) { \ + const type *p = codec->field; \ + \ + printf(" Supported " list_name ":"); \ + while (*p != term) { \ + get_name(*p); \ + printf(" %s", name); \ + p++; \ + } \ + printf("\n"); \ + } \ + +static void print_codec(const AVCodec *c) +{ + int encoder = av_codec_is_encoder(c); + + printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name, + c->long_name ? c->long_name : ""); + + printf(" General capabilities: "); + if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND) + printf("horizband "); + if (c->capabilities & AV_CODEC_CAP_DR1) + printf("dr1 "); + if (c->capabilities & AV_CODEC_CAP_DELAY) + printf("delay "); + if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) + printf("small "); + if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL) + printf("exp "); + if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF) + printf("chconf "); + if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE) + printf("paramchange "); + if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE) + printf("variable "); + if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS | + AV_CODEC_CAP_OTHER_THREADS)) + printf("threads "); + if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING) + printf("avoidprobe "); + if (c->capabilities & AV_CODEC_CAP_HARDWARE) + printf("hardware "); + if (c->capabilities & AV_CODEC_CAP_HYBRID) + printf("hybrid "); + if (!c->capabilities) + printf("none"); + printf("\n"); + + if (c->type == AVMEDIA_TYPE_VIDEO || + c->type == AVMEDIA_TYPE_AUDIO) { + printf(" Threading capabilities: "); + switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS | + AV_CODEC_CAP_OTHER_THREADS)) { + case AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break; + case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break; + case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break; + case AV_CODEC_CAP_OTHER_THREADS: printf("other"); break; + default: printf("none"); break; + } + printf("\n"); + } + + if (avcodec_get_hw_config(c, 0)) { + printf(" Supported hardware devices: "); + for (int i = 0;; i++) { + const AVCodecHWConfig *config = avcodec_get_hw_config(c, i); + const char *name; + if (!config) + break; + name = av_hwdevice_get_type_name(config->device_type); + if (name) + printf("%s ", name); + } + printf("\n"); + } + + if (c->supported_framerates) { + const AVRational *fps = c->supported_framerates; + + printf(" Supported framerates:"); + while (fps->num) { + printf(" %d/%d", fps->num, fps->den); + fps++; + } + printf("\n"); + } + PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats", + AV_PIX_FMT_NONE, GET_PIX_FMT_NAME); + PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0, + GET_SAMPLE_RATE_NAME); + PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats", + AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME); + + if (c->ch_layouts) { + const AVChannelLayout *p = c->ch_layouts; + + printf(" Supported channel layouts:"); + while (p->nb_channels) { + char name[128]; + av_channel_layout_describe(p, name, sizeof(name)); + printf(" %s", name); + p++; + } + printf("\n"); + } + + if (c->priv_class) { + show_help_children(c->priv_class, + AV_OPT_FLAG_ENCODING_PARAM | + AV_OPT_FLAG_DECODING_PARAM); + } +} + +static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter, + int encoder) +{ + const AVCodec *c; + while ((c = av_codec_iterate(iter))) { + if (c->id == id && + (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c))) + return c; + } + return NULL; +} + +static void show_help_codec(const char *name, int encoder) +{ + const AVCodecDescriptor *desc; + const AVCodec *codec; + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n"); + return; + } + + codec = encoder ? avcodec_find_encoder_by_name(name) : + avcodec_find_decoder_by_name(name); + + if (codec) + print_codec(codec); + else if ((desc = avcodec_descriptor_get_by_name(name))) { + void *iter = NULL; + int printed = 0; + + while ((codec = next_codec_for_id(desc->id, &iter, encoder))) { + printed = 1; + print_codec(codec); + } + + if (!printed) { + av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, " + "but no %s for it are available. FFmpeg might need to be " + "recompiled with additional external libraries.\n", + name, encoder ? "encoders" : "decoders"); + } + } else { + av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n", + name); + } +} + +static void show_help_demuxer(const char *name) +{ + const AVInputFormat *fmt = av_find_input_format(name); + + if (!fmt) { + av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name); + return; + } + + printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name); + + if (fmt->extensions) + printf(" Common extensions: %s.\n", fmt->extensions); + + if (fmt->priv_class) + show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM); +} + +static void show_help_protocol(const char *name) +{ + const AVClass *proto_class; + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n"); + return; + } + + proto_class = avio_protocol_get_class(name); + if (!proto_class) { + av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name); + return; + } + + show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM); +} + +static void show_help_muxer(const char *name) +{ + const AVCodecDescriptor *desc; + const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL); + + if (!fmt) { + av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name); + return; + } + + printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name); + + if (fmt->extensions) + printf(" Common extensions: %s.\n", fmt->extensions); + if (fmt->mime_type) + printf(" Mime type: %s.\n", fmt->mime_type); + if (fmt->video_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->video_codec))) { + printf(" Default video codec: %s.\n", desc->name); + } + if (fmt->audio_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->audio_codec))) { + printf(" Default audio codec: %s.\n", desc->name); + } + if (fmt->subtitle_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->subtitle_codec))) { + printf(" Default subtitle codec: %s.\n", desc->name); + } + + if (fmt->priv_class) + show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM); +} + +#if CONFIG_AVFILTER +static void show_help_filter(const char *name) +{ +#if CONFIG_AVFILTER + const AVFilter *f = avfilter_get_by_name(name); + int i, count; + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n"); + return; + } else if (!f) { + av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name); + return; + } + + printf("Filter %s\n", f->name); + if (f->description) + printf(" %s\n", f->description); + + if (f->flags & AVFILTER_FLAG_SLICE_THREADS) + printf(" slice threading supported\n"); + + printf(" Inputs:\n"); + count = avfilter_filter_pad_count(f, 0); + for (i = 0; i < count; i++) { + printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i), + av_get_media_type_string(avfilter_pad_get_type(f->inputs, i))); + } + if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS) + printf(" dynamic (depending on the options)\n"); + else if (!count) + printf(" none (source filter)\n"); + + printf(" Outputs:\n"); + count = avfilter_filter_pad_count(f, 1); + for (i = 0; i < count; i++) { + printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i), + av_get_media_type_string(avfilter_pad_get_type(f->outputs, i))); + } + if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS) + printf(" dynamic (depending on the options)\n"); + else if (!count) + printf(" none (sink filter)\n"); + + if (f->priv_class) + show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | + AV_OPT_FLAG_AUDIO_PARAM); + if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE) + printf("This filter has support for timeline through the 'enable' option.\n"); +#else + av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; " + "can not to satisfy request\n"); +#endif +} +#endif + +static void show_help_bsf(const char *name) +{ + const AVBitStreamFilter *bsf = av_bsf_get_by_name(name); + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n"); + return; + } else if (!bsf) { + av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name); + return; + } + + printf("Bit stream filter %s\n", bsf->name); + PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs", + AV_CODEC_ID_NONE, GET_CODEC_NAME); + if (bsf->priv_class) + show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM); +} + +int show_help(void *optctx, const char *opt, const char *arg) +{ + char *topic, *par; + av_log_set_callback(log_callback_help); + + topic = av_strdup(arg ? arg : ""); + if (!topic) + return AVERROR(ENOMEM); + par = strchr(topic, '='); + if (par) + *par++ = 0; + + if (!*topic) { + show_help_default(topic, par); + } else if (!strcmp(topic, "decoder")) { + show_help_codec(par, 0); + } else if (!strcmp(topic, "encoder")) { + show_help_codec(par, 1); + } else if (!strcmp(topic, "demuxer")) { + show_help_demuxer(par); + } else if (!strcmp(topic, "muxer")) { + show_help_muxer(par); + } else if (!strcmp(topic, "protocol")) { + show_help_protocol(par); +#if CONFIG_AVFILTER + } else if (!strcmp(topic, "filter")) { + show_help_filter(par); +#endif + } else if (!strcmp(topic, "bsf")) { + show_help_bsf(par); + } else { + show_help_default(topic, par); + } + + av_freep(&topic); + return 0; +} + +static void print_codecs_for_id(enum AVCodecID id, int encoder) +{ + void *iter = NULL; + const AVCodec *codec; + + printf(" (%s:", encoder ? "encoders" : "decoders"); + + while ((codec = next_codec_for_id(id, &iter, encoder))) + printf(" %s", codec->name); + + printf(")"); +} + +static int compare_codec_desc(const void *a, const void *b) +{ + const AVCodecDescriptor * const *da = a; + const AVCodecDescriptor * const *db = b; + + return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) : + strcmp((*da)->name, (*db)->name); +} + +static int get_codecs_sorted(const AVCodecDescriptor ***rcodecs) +{ + const AVCodecDescriptor *desc = NULL; + const AVCodecDescriptor **codecs; + unsigned nb_codecs = 0, i = 0; + + while ((desc = avcodec_descriptor_next(desc))) + nb_codecs++; + if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) + return AVERROR(ENOMEM); + desc = NULL; + while ((desc = avcodec_descriptor_next(desc))) + codecs[i++] = desc; + av_assert0(i == nb_codecs); + qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc); + *rcodecs = codecs; + return nb_codecs; +} + +static char get_media_type_char(enum AVMediaType type) +{ + switch (type) { + case AVMEDIA_TYPE_VIDEO: return 'V'; + case AVMEDIA_TYPE_AUDIO: return 'A'; + case AVMEDIA_TYPE_DATA: return 'D'; + case AVMEDIA_TYPE_SUBTITLE: return 'S'; + case AVMEDIA_TYPE_ATTACHMENT:return 'T'; + default: return '?'; + } +} + +int show_codecs(void *optctx, const char *opt, const char *arg) +{ + const AVCodecDescriptor **codecs; + unsigned i; + int nb_codecs = get_codecs_sorted(&codecs); + + if (nb_codecs < 0) + return nb_codecs; + + printf("Codecs:\n" + " D..... = Decoding supported\n" + " .E.... = Encoding supported\n" + " ..V... = Video codec\n" + " ..A... = Audio codec\n" + " ..S... = Subtitle codec\n" + " ..D... = Data codec\n" + " ..T... = Attachment codec\n" + " ...I.. = Intra frame-only codec\n" + " ....L. = Lossy compression\n" + " .....S = Lossless compression\n" + " -------\n"); + for (i = 0; i < nb_codecs; i++) { + const AVCodecDescriptor *desc = codecs[i]; + const AVCodec *codec; + void *iter = NULL; + + if (strstr(desc->name, "_deprecated")) + continue; + + printf(" %c%c%c%c%c%c", + avcodec_find_decoder(desc->id) ? 'D' : '.', + avcodec_find_encoder(desc->id) ? 'E' : '.', + get_media_type_char(desc->type), + (desc->props & AV_CODEC_PROP_INTRA_ONLY) ? 'I' : '.', + (desc->props & AV_CODEC_PROP_LOSSY) ? 'L' : '.', + (desc->props & AV_CODEC_PROP_LOSSLESS) ? 'S' : '.'); + + printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : ""); + + /* print decoders/encoders when there's more than one or their + * names are different from codec name */ + while ((codec = next_codec_for_id(desc->id, &iter, 0))) { + if (strcmp(codec->name, desc->name)) { + print_codecs_for_id(desc->id, 0); + break; + } + } + iter = NULL; + while ((codec = next_codec_for_id(desc->id, &iter, 1))) { + if (strcmp(codec->name, desc->name)) { + print_codecs_for_id(desc->id, 1); + break; + } + } + + printf("\n"); + } + av_free(codecs); + return 0; +} + +static void print_codecs(int encoder) +{ + const AVCodecDescriptor **codecs; + unsigned i, nb_codecs = get_codecs_sorted(&codecs); + + printf("%s:\n" + " V..... = Video\n" + " A..... = Audio\n" + " S..... = Subtitle\n" + " .F.... = Frame-level multithreading\n" + " ..S... = Slice-level multithreading\n" + " ...X.. = Codec is experimental\n" + " ....B. = Supports draw_horiz_band\n" + " .....D = Supports direct rendering method 1\n" + " ------\n", + encoder ? "Encoders" : "Decoders"); + for (i = 0; i < nb_codecs; i++) { + const AVCodecDescriptor *desc = codecs[i]; + const AVCodec *codec; + void *iter = NULL; + + while ((codec = next_codec_for_id(desc->id, &iter, encoder))) { + printf(" %c%c%c%c%c%c", + get_media_type_char(desc->type), + (codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? 'F' : '.', + (codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? 'S' : '.', + (codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? 'X' : '.', + (codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND) ? 'B' : '.', + (codec->capabilities & AV_CODEC_CAP_DR1) ? 'D' : '.'); + + printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : ""); + if (strcmp(codec->name, desc->name)) + printf(" (codec %s)", desc->name); + + printf("\n"); + } + } + av_free(codecs); +} + +int show_decoders(void *optctx, const char *opt, const char *arg) +{ + print_codecs(0); + return 0; +} + +int show_encoders(void *optctx, const char *opt, const char *arg) +{ + print_codecs(1); + return 0; +} + +int show_bsfs(void *optctx, const char *opt, const char *arg) +{ + const AVBitStreamFilter *bsf = NULL; + void *opaque = NULL; + + printf("Bitstream filters:\n"); + while ((bsf = av_bsf_iterate(&opaque))) + printf("%s\n", bsf->name); + printf("\n"); + return 0; +} + +int show_filters(void *optctx, const char *opt, const char *arg) +{ +#if CONFIG_AVFILTER + const AVFilter *filter = NULL; + char descr[64], *descr_cur; + void *opaque = NULL; + int i, j; + const AVFilterPad *pad; + + printf("Filters:\n" + " T.. = Timeline support\n" + " .S. = Slice threading\n" + " ..C = Command support\n" + " A = Audio input/output\n" + " V = Video input/output\n" + " N = Dynamic number and/or type of input/output\n" + " | = Source or sink filter\n"); + while ((filter = av_filter_iterate(&opaque))) { + descr_cur = descr; + for (i = 0; i < 2; i++) { + unsigned nb_pads; + if (i) { + *(descr_cur++) = '-'; + *(descr_cur++) = '>'; + } + pad = i ? filter->outputs : filter->inputs; + nb_pads = avfilter_filter_pad_count(filter, i); + for (j = 0; j < nb_pads; j++) { + if (descr_cur >= descr + sizeof(descr) - 4) + break; + *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j)); + } + if (!j) + *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) || + ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|'; + } + *descr_cur = 0; + printf(" %c%c%c %-17s %-10s %s\n", + filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.', + filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.', + filter->process_command ? 'C' : '.', + filter->name, descr, filter->description); + } +#else + printf("No filters available: libavfilter disabled\n"); +#endif + return 0; +} + +static int is_device(const AVClass *avclass) +{ + if (!avclass) + return 0; + return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category); +} + +static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers) +{ + void *ifmt_opaque = NULL; + const AVInputFormat *ifmt = NULL; + void *ofmt_opaque = NULL; + const AVOutputFormat *ofmt = NULL; + const char *last_name; + int is_dev; + + printf("%s\n" + " D. = Demuxing supported\n" + " .E = Muxing supported\n" + " --\n", device_only ? "Devices:" : "File formats:"); + last_name = "000"; + for (;;) { + int decode = 0; + int encode = 0; + const char *name = NULL; + const char *long_name = NULL; + + if (muxdemuxers !=SHOW_DEMUXERS) { + ofmt_opaque = NULL; + while ((ofmt = av_muxer_iterate(&ofmt_opaque))) { + is_dev = is_device(ofmt->priv_class); + if (!is_dev && device_only) + continue; + if ((!name || strcmp(ofmt->name, name) < 0) && + strcmp(ofmt->name, last_name) > 0) { + name = ofmt->name; + long_name = ofmt->long_name; + encode = 1; + } + } + } + if (muxdemuxers != SHOW_MUXERS) { + ifmt_opaque = NULL; + while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) { + is_dev = is_device(ifmt->priv_class); + if (!is_dev && device_only) + continue; + if ((!name || strcmp(ifmt->name, name) < 0) && + strcmp(ifmt->name, last_name) > 0) { + name = ifmt->name; + long_name = ifmt->long_name; + encode = 0; + } + if (name && strcmp(ifmt->name, name) == 0) + decode = 1; + } + } + if (!name) + break; + last_name = name; + + printf(" %c%c %-15s %s\n", + decode ? 'D' : ' ', + encode ? 'E' : ' ', + name, + long_name ? long_name:" "); + } + return 0; +} + +int show_formats(void *optctx, const char *opt, const char *arg) +{ + return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT); +} + +int show_muxers(void *optctx, const char *opt, const char *arg) +{ + return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS); +} + +int show_demuxers(void *optctx, const char *opt, const char *arg) +{ + return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS); +} + +int show_devices(void *optctx, const char *opt, const char *arg) +{ + return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT); +} + +int show_protocols(void *optctx, const char *opt, const char *arg) +{ + void *opaque = NULL; + const char *name; + + printf("Supported file protocols:\n" + "Input:\n"); + while ((name = avio_enum_protocols(&opaque, 0))) + printf(" %s\n", name); + printf("Output:\n"); + while ((name = avio_enum_protocols(&opaque, 1))) + printf(" %s\n", name); + return 0; +} + +int show_colors(void *optctx, const char *opt, const char *arg) +{ + const char *name; + const uint8_t *rgb; + int i; + + printf("%-32s #RRGGBB\n", "name"); + + for (i = 0; name = av_get_known_color_name(i, &rgb); i++) + printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]); + + return 0; +} + +int show_pix_fmts(void *optctx, const char *opt, const char *arg) +{ + const AVPixFmtDescriptor *pix_desc = NULL; + + printf("Pixel formats:\n" + "I.... = Supported Input format for conversion\n" + ".O... = Supported Output format for conversion\n" + "..H.. = Hardware accelerated format\n" + "...P. = Paletted format\n" + "....B = Bitstream format\n" + "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL BIT_DEPTHS\n" + "-----\n"); + +#if !CONFIG_SWSCALE +# define sws_isSupportedInput(x) 0 +# define sws_isSupportedOutput(x) 0 +#endif + + while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) { + enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc); + printf("%c%c%c%c%c %-16s %d %3d %d", + sws_isSupportedInput (pix_fmt) ? 'I' : '.', + sws_isSupportedOutput(pix_fmt) ? 'O' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.', + pix_desc->name, + pix_desc->nb_components, + av_get_bits_per_pixel(pix_desc), + pix_desc->comp[0].depth); + + for (unsigned i = 1; i < pix_desc->nb_components; i++) + printf("-%d", pix_desc->comp[i].depth); + printf("\n"); + } + return 0; +} + +int show_layouts(void *optctx, const char *opt, const char *arg) +{ + const AVChannelLayout *ch_layout; + void *iter = NULL; + char buf[128], buf2[128]; + int i = 0; + + printf("Individual channels:\n" + "NAME DESCRIPTION\n"); + for (i = 0; i < 63; i++) { + av_channel_name(buf, sizeof(buf), i); + if (strstr(buf, "USR")) + continue; + av_channel_description(buf2, sizeof(buf2), i); + printf("%-14s %s\n", buf, buf2); + } + printf("\nStandard channel layouts:\n" + "NAME DECOMPOSITION\n"); + while (ch_layout = av_channel_layout_standard(&iter)) { + av_channel_layout_describe(ch_layout, buf, sizeof(buf)); + printf("%-14s ", buf); + for (i = 0; i < 63; i++) { + int idx = av_channel_layout_index_from_channel(ch_layout, i); + if (idx >= 0) { + av_channel_name(buf2, sizeof(buf2), i); + printf("%s%s", idx ? "+" : "", buf2); + } + } + printf("\n"); + } + return 0; +} + +int show_sample_fmts(void *optctx, const char *opt, const char *arg) +{ + int i; + char fmt_str[128]; + for (i = -1; i < AV_SAMPLE_FMT_NB; i++) + printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i)); + return 0; +} + +int show_dispositions(void *optctx, const char *opt, const char *arg) +{ + for (int i = 0; i < 32; i++) { + const char *str = av_disposition_to_string(1U << i); + if (str) + printf("%s\n", str); + } + return 0; +} + +int opt_cpuflags(void *optctx, const char *opt, const char *arg) +{ + int ret; + unsigned flags = av_get_cpu_flags(); + + if ((ret = av_parse_cpu_caps(&flags, arg)) < 0) + return ret; + + av_force_cpu_flags(flags); + return 0; +} + +int opt_cpucount(void *optctx, const char *opt, const char *arg) +{ + int ret; + int count; + + static const AVOption opts[] = { + {"count", NULL, 0, AV_OPT_TYPE_INT, { .i64 = -1}, -1, INT_MAX}, + {NULL}, + }; + static const AVClass class = { + .class_name = "cpucount", + .item_name = av_default_item_name, + .option = opts, + .version = LIBAVUTIL_VERSION_INT, + }; + const AVClass *pclass = &class; + + ret = av_opt_eval_int(&pclass, opts, arg, &count); + + if (!ret) { + av_cpu_force_count(count); + } + + return ret; +} + +static void expand_filename_template(AVBPrint *bp, const char *template, + struct tm *tm) +{ + int c; + + while ((c = *(template++))) { + if (c == '%') { + if (!(c = *(template++))) + break; + switch (c) { + case 'p': + av_bprintf(bp, "%s", program_name); + break; + case 't': + av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d", + tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + break; + case '%': + av_bprint_chars(bp, c, 1); + break; + } + } else { + av_bprint_chars(bp, c, 1); + } + } +} + +static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl) +{ + va_list vl2; + char line[1024]; + static int print_prefix = 1; + + va_copy(vl2, vl); + av_log_default_callback(ptr, level, fmt, vl); + av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix); + va_end(vl2); + if (report_file_level >= level) { + fputs(line, report_file); + fflush(report_file); + } +} + +int init_report(const char *env, FILE **file) +{ + char *filename_template = NULL; + char *key, *val; + int ret, count = 0; + int prog_loglevel, envlevel = 0; + time_t now; + struct tm *tm; + AVBPrint filename; + + if (report_file) /* already opened */ + return 0; + time(&now); + tm = localtime(&now); + + while (env && *env) { + if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) { + if (count) + av_log(NULL, AV_LOG_ERROR, + "Failed to parse FFREPORT environment variable: %s\n", + av_err2str(ret)); + break; + } + if (*env) + env++; + count++; + if (!strcmp(key, "file")) { + av_free(filename_template); + filename_template = val; + val = NULL; + } else if (!strcmp(key, "level")) { + char *tail; + report_file_level = strtol(val, &tail, 10); + if (*tail) { + av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n"); + av_free(key); + av_free(val); + av_free(filename_template); + return AVERROR(EINVAL); + } + envlevel = 1; + } else { + av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key); + } + av_free(val); + av_free(key); + } + + av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC); + expand_filename_template(&filename, + av_x_if_null(filename_template, "%p-%t.log"), tm); + av_free(filename_template); + if (!av_bprint_is_complete(&filename)) { + av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n"); + return AVERROR(ENOMEM); + } + + prog_loglevel = av_log_get_level(); + if (!envlevel) + report_file_level = FFMAX(report_file_level, prog_loglevel); + + report_file = fopen(filename.str, "w"); + if (!report_file) { + int ret = AVERROR(errno); + av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n", + filename.str, strerror(errno)); + return ret; + } + av_log_set_callback(log_callback_report); + av_log(NULL, AV_LOG_INFO, + "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n" + "Report written to \"%s\"\n" + "Log level: %d\n", + program_name, + tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec, + filename.str, report_file_level); + av_bprint_finalize(&filename, NULL); + + if (file) + *file = report_file; + + return 0; +} + +int opt_report(void *optctx, const char *opt, const char *arg) +{ + return init_report(NULL, NULL); +} + +int opt_max_alloc(void *optctx, const char *opt, const char *arg) +{ + char *tail; + size_t max; + + max = strtol(arg, &tail, 10); + if (*tail) { + av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg); + return AVERROR(EINVAL); + } + av_max_alloc(max); + return 0; +} + +int opt_loglevel(void *optctx, const char *opt, const char *arg) +{ + const struct { const char *name; int level; } log_levels[] = { + { "quiet" , AV_LOG_QUIET }, + { "panic" , AV_LOG_PANIC }, + { "fatal" , AV_LOG_FATAL }, + { "error" , AV_LOG_ERROR }, + { "warning", AV_LOG_WARNING }, + { "info" , AV_LOG_INFO }, + { "verbose", AV_LOG_VERBOSE }, + { "debug" , AV_LOG_DEBUG }, + { "trace" , AV_LOG_TRACE }, + }; + const char *token; + char *tail; + int flags = av_log_get_flags(); + int level = av_log_get_level(); + int cmd, i = 0; + + av_assert0(arg); + while (*arg) { + token = arg; + if (*token == '+' || *token == '-') { + cmd = *token++; + } else { + cmd = 0; + } + if (!i && !cmd) { + flags = 0; /* missing relative prefix, build absolute value */ + } + if (av_strstart(token, "repeat", &arg)) { + if (cmd == '-') { + flags |= AV_LOG_SKIP_REPEATED; + } else { + flags &= ~AV_LOG_SKIP_REPEATED; + } + } else if (av_strstart(token, "level", &arg)) { + if (cmd == '-') { + flags &= ~AV_LOG_PRINT_LEVEL; + } else { + flags |= AV_LOG_PRINT_LEVEL; + } + } else { + break; + } + i++; + } + if (!*arg) { + goto end; + } else if (*arg == '+') { + arg++; + } else if (!i) { + flags = av_log_get_flags(); /* level value without prefix, reset flags */ + } + + for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) { + if (!strcmp(log_levels[i].name, arg)) { + level = log_levels[i].level; + goto end; + } + } + + level = strtol(arg, &tail, 10); + if (*tail) { + av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". " + "Possible levels are numbers or:\n", arg); + for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) + av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name); + return AVERROR(EINVAL); + } + +end: + av_log_set_flags(flags); + av_log_set_level(level); + return 0; +} + +#if CONFIG_AVDEVICE +static void print_device_list(const AVDeviceInfoList *device_list) +{ + // print devices + for (int i = 0; i < device_list->nb_devices; i++) { + const AVDeviceInfo *device = device_list->devices[i]; + printf("%c %s [%s] (", device_list->default_device == i ? '*' : ' ', + device->device_name, device->device_description); + if (device->nb_media_types > 0) { + for (int j = 0; j < device->nb_media_types; ++j) { + const char* media_type = av_get_media_type_string(device->media_types[j]); + if (j > 0) + printf(", "); + printf("%s", media_type ? media_type : "unknown"); + } + } else { + printf("none"); + } + printf(")\n"); + } +} + +static int print_device_sources(const AVInputFormat *fmt, AVDictionary *opts) +{ + int ret; + AVDeviceInfoList *device_list = NULL; + + if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category)) + return AVERROR(EINVAL); + + printf("Auto-detected sources for %s:\n", fmt->name); + if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) { + printf("Cannot list sources: %s\n", av_err2str(ret)); + goto fail; + } + + print_device_list(device_list); + + fail: + avdevice_free_list_devices(&device_list); + return ret; +} + +static int print_device_sinks(const AVOutputFormat *fmt, AVDictionary *opts) +{ + int ret; + AVDeviceInfoList *device_list = NULL; + + if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category)) + return AVERROR(EINVAL); + + printf("Auto-detected sinks for %s:\n", fmt->name); + if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) { + printf("Cannot list sinks: %s\n", av_err2str(ret)); + goto fail; + } + + print_device_list(device_list); + + fail: + avdevice_free_list_devices(&device_list); + return ret; +} + +static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts) +{ + int ret; + if (arg) { + char *opts_str = NULL; + av_assert0(dev && opts); + *dev = av_strdup(arg); + if (!*dev) + return AVERROR(ENOMEM); + if ((opts_str = strchr(*dev, ','))) { + *(opts_str++) = '\0'; + if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) { + av_freep(dev); + return ret; + } + } + } else + printf("\nDevice name is not provided.\n" + "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n"); + return 0; +} + +int show_sources(void *optctx, const char *opt, const char *arg) +{ + const AVInputFormat *fmt = NULL; + char *dev = NULL; + AVDictionary *opts = NULL; + int ret = 0; + int error_level = av_log_get_level(); + + av_log_set_level(AV_LOG_WARNING); + + if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0) + goto fail; + + do { + fmt = av_input_audio_device_next(fmt); + if (fmt) { + if (!strcmp(fmt->name, "lavfi")) + continue; //it's pointless to probe lavfi + if (dev && !av_match_name(dev, fmt->name)) + continue; + print_device_sources(fmt, opts); + } + } while (fmt); + do { + fmt = av_input_video_device_next(fmt); + if (fmt) { + if (dev && !av_match_name(dev, fmt->name)) + continue; + print_device_sources(fmt, opts); + } + } while (fmt); + fail: + av_dict_free(&opts); + av_free(dev); + av_log_set_level(error_level); + return ret; +} + +int show_sinks(void *optctx, const char *opt, const char *arg) +{ + const AVOutputFormat *fmt = NULL; + char *dev = NULL; + AVDictionary *opts = NULL; + int ret = 0; + int error_level = av_log_get_level(); + + av_log_set_level(AV_LOG_WARNING); + + if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0) + goto fail; + + do { + fmt = av_output_audio_device_next(fmt); + if (fmt) { + if (dev && !av_match_name(dev, fmt->name)) + continue; + print_device_sinks(fmt, opts); + } + } while (fmt); + do { + fmt = av_output_video_device_next(fmt); + if (fmt) { + if (dev && !av_match_name(dev, fmt->name)) + continue; + print_device_sinks(fmt, opts); + } + } while (fmt); + fail: + av_dict_free(&opts); + av_free(dev); + av_log_set_level(error_level); + return ret; +} +#endif /* CONFIG_AVDEVICE */ diff --git a/opt_common.h b/opt_common.h new file mode 100644 index 0000000..ea1d16e --- /dev/null +++ b/opt_common.h @@ -0,0 +1,231 @@ +/* + * Option handlers shared between the tools. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef FFTOOLS_OPT_COMMON_H +#define FFTOOLS_OPT_COMMON_H + +#include "config.h" + +#include "cmdutils.h" + +#if CONFIG_AVDEVICE +/** + * Print a listing containing autodetected sinks of the output device. + * Device name with options may be passed as an argument to limit results. + */ +int show_sinks(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing autodetected sources of the input device. + * Device name with options may be passed as an argument to limit results. + */ +int show_sources(void *optctx, const char *opt, const char *arg); +#endif + +#if CONFIG_AVDEVICE +#define CMDUTILS_COMMON_OPTIONS_AVDEVICE \ + { "sources" , OPT_EXIT | HAS_ARG, { .func_arg = show_sources }, \ + "list sources of the input device", "device" }, \ + { "sinks" , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks }, \ + "list sinks of the output device", "device" }, \ + +#else +#define CMDUTILS_COMMON_OPTIONS_AVDEVICE +#endif + +/** + * Print the license of the program to stdout. The license depends on + * the license of the libraries compiled into the program. + * This option processing function does not utilize the arguments. + */ +int show_license(void *optctx, const char *opt, const char *arg); + +/** + * Generic -h handler common to all fftools. + */ +int show_help(void *optctx, const char *opt, const char *arg); + +/** + * Print the version of the program to stdout. The version message + * depends on the current versions of the repository and of the libav* + * libraries. + * This option processing function does not utilize the arguments. + */ +int show_version(void *optctx, const char *opt, const char *arg); + +/** + * Print the build configuration of the program to stdout. The contents + * depend on the definition of FFMPEG_CONFIGURATION. + * This option processing function does not utilize the arguments. + */ +int show_buildconf(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the formats supported by the + * program (including devices). + * This option processing function does not utilize the arguments. + */ +int show_formats(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the muxers supported by the + * program (including devices). + * This option processing function does not utilize the arguments. + */ +int show_muxers(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the demuxer supported by the + * program (including devices). + * This option processing function does not utilize the arguments. + */ +int show_demuxers(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the devices supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_devices(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the codecs supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_codecs(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the decoders supported by the + * program. + */ +int show_decoders(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the encoders supported by the + * program. + */ +int show_encoders(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the bit stream filters supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_bsfs(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the protocols supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_protocols(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the filters supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_filters(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the pixel formats supported by the + * program. + * This option processing function does not utilize the arguments. + */ +int show_pix_fmts(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the standard channel layouts supported by + * the program. + * This option processing function does not utilize the arguments. + */ +int show_layouts(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the sample formats supported by the + * program. + */ +int show_sample_fmts(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all supported stream dispositions. + */ +int show_dispositions(void *optctx, const char *opt, const char *arg); + +/** + * Print a listing containing all the color names and values recognized + * by the program. + */ +int show_colors(void *optctx, const char *opt, const char *arg); + +/** + * Set the libav* libraries log level. + */ +int opt_loglevel(void *optctx, const char *opt, const char *arg); + +int opt_report(void *optctx, const char *opt, const char *arg); +int init_report(const char *env, FILE **file); + +int opt_max_alloc(void *optctx, const char *opt, const char *arg); + +/** + * Override the cpuflags. + */ +int opt_cpuflags(void *optctx, const char *opt, const char *arg); + +/** + * Override the cpucount. + */ +int opt_cpucount(void *optctx, const char *opt, const char *arg); + +#define CMDUTILS_COMMON_OPTIONS \ + { "L", OPT_EXIT, { .func_arg = show_license }, "show license" }, \ + { "h", OPT_EXIT, { .func_arg = show_help }, "show help", "topic" }, \ + { "?", OPT_EXIT, { .func_arg = show_help }, "show help", "topic" }, \ + { "help", OPT_EXIT, { .func_arg = show_help }, "show help", "topic" }, \ + { "-help", OPT_EXIT, { .func_arg = show_help }, "show help", "topic" }, \ + { "version", OPT_EXIT, { .func_arg = show_version }, "show version" }, \ + { "buildconf", OPT_EXIT, { .func_arg = show_buildconf }, "show build configuration" }, \ + { "formats", OPT_EXIT, { .func_arg = show_formats }, "show available formats" }, \ + { "muxers", OPT_EXIT, { .func_arg = show_muxers }, "show available muxers" }, \ + { "demuxers", OPT_EXIT, { .func_arg = show_demuxers }, "show available demuxers" }, \ + { "devices", OPT_EXIT, { .func_arg = show_devices }, "show available devices" }, \ + { "codecs", OPT_EXIT, { .func_arg = show_codecs }, "show available codecs" }, \ + { "decoders", OPT_EXIT, { .func_arg = show_decoders }, "show available decoders" }, \ + { "encoders", OPT_EXIT, { .func_arg = show_encoders }, "show available encoders" }, \ + { "bsfs", OPT_EXIT, { .func_arg = show_bsfs }, "show available bit stream filters" }, \ + { "protocols", OPT_EXIT, { .func_arg = show_protocols }, "show available protocols" }, \ + { "filters", OPT_EXIT, { .func_arg = show_filters }, "show available filters" }, \ + { "pix_fmts", OPT_EXIT, { .func_arg = show_pix_fmts }, "show available pixel formats" }, \ + { "layouts", OPT_EXIT, { .func_arg = show_layouts }, "show standard channel layouts" }, \ + { "sample_fmts", OPT_EXIT, { .func_arg = show_sample_fmts }, "show available audio sample formats" }, \ + { "dispositions", OPT_EXIT, { .func_arg = show_dispositions}, "show available stream dispositions" }, \ + { "colors", OPT_EXIT, { .func_arg = show_colors }, "show available color names" }, \ + { "loglevel", HAS_ARG, { .func_arg = opt_loglevel }, "set logging level", "loglevel" }, \ + { "v", HAS_ARG, { .func_arg = opt_loglevel }, "set logging level", "loglevel" }, \ + { "report", 0, { .func_arg = opt_report }, "generate a report" }, \ + { "max_alloc", HAS_ARG, { .func_arg = opt_max_alloc }, "set maximum size of a single allocated block", "bytes" }, \ + { "cpuflags", HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags }, "force specific cpu flags", "flags" }, \ + { "cpucount", HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpucount }, "force specific cpu count", "count" }, \ + { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner}, "do not show program banner", "hide_banner" }, \ + CMDUTILS_COMMON_OPTIONS_AVDEVICE \ + +#endif /* FFTOOLS_OPT_COMMON_H */