mirror of
https://github.com/w23/xash3d-fwgs
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5e0a0765ce
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.
Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.
`git blame` becomes less useful on these lines but it already isn't very useful.
Commands:
```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
/*
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libmpg.c - compact version of famous library mpg123
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Copyright (C) 2017 Uncle Mike
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#include "mpg123.h"
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#include "libmpg.h"
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void *create_decoder( int *error )
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{
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void *mpg;
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int ret;
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if( error ) *error = 0;
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mpg123_init();
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mpg = mpg123_new( &ret );
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if( !mpg ) return NULL;
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ret = mpg123_param( mpg, MPG123_FLAGS, MPG123_FUZZY|MPG123_SEEKBUFFER|MPG123_GAPLESS );
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if( ret != MPG123_OK && error )
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*error = 1;
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// let the seek index auto-grow and contain an entry for every frame
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ret = mpg123_param( mpg, MPG123_INDEX_SIZE, -1 );
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if( ret != MPG123_OK && error )
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*error = 1;
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return mpg;
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}
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int feed_mpeg_header( void *mpg, const byte *data, long bufsize, long streamsize, wavinfo_t *sc )
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{
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mpg123_handle_t *mh = (mpg123_handle_t *)mpg;
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int ret, no;
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if( !mh || !sc ) return 0;
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ret = mpg123_open_feed( mh );
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if( ret != MPG123_OK )
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return 0;
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// feed input chunk and get first chunk of decoded audio.
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ret = mpg123_decode( mh, data, bufsize, NULL, 0, NULL );
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if( ret != MPG123_NEW_FORMAT )
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return 0; // there were errors
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mpg123_getformat( mh, &sc->rate, &sc->channels, &no );
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mpg123_format_none( mh );
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mpg123_format( mh, sc->rate, sc->channels, MPG123_ENC_SIGNED_16 );
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// some hacking to get function get_songlen to working properly
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mh->rdat.filelen = streamsize;
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sc->playtime = get_songlen( mh, -1 ) * 1000;
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return 1;
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}
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int feed_mpeg_stream( void *mpg, const byte *data, long bufsize, byte *outbuf, size_t *outsize )
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{
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switch( mpg123_decode( mpg, data, bufsize, outbuf, OUTBUF_SIZE, outsize ))
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{
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case MPG123_NEED_MORE:
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return MP3_NEED_MORE;
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case MPG123_OK:
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return MP3_OK;
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default:
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return MP3_ERR;
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}
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}
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int open_mpeg_stream( void *mpg, void *file, pfread f_read, pfseek f_seek, wavinfo_t *sc )
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{
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mpg123_handle_t *mh = (mpg123_handle_t *)mpg;
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int ret, no;
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if( !mh || !sc ) return 0;
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ret = mpg123_replace_reader_handle( mh, (void *)f_read, (void *)f_seek, NULL );
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if( ret != MPG123_OK )
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return 0;
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ret = mpg123_open_handle( mh, file );
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if( ret != MPG123_OK )
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return 0;
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ret = mpg123_getformat( mh, &sc->rate, &sc->channels, &no );
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if( ret != MPG123_OK )
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return 0;
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mpg123_format_none( mh );
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mpg123_format( mh, sc->rate, sc->channels, MPG123_ENC_SIGNED_16 );
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sc->playtime = get_songlen( mh, -1 ) * 1000;
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return 1;
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}
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int read_mpeg_stream( void *mpg, byte *outbuf, size_t *outsize )
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{
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switch( mpg123_read( mpg, outbuf, OUTBUF_SIZE, outsize ))
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{
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case MPG123_OK:
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return MP3_OK;
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default:
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return MP3_ERR;
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}
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}
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int get_stream_pos( void *mpg )
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{
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return mpg123_tell( mpg );
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}
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int set_stream_pos( void *mpg, int curpos )
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{
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return mpg123_seek( mpg, curpos, SEEK_SET );
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}
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void close_decoder( void *mpg )
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{
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mpg123_delete( mpg );
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mpg123_exit();
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}
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