118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
/*
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* QEMU Audio subsystem header
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*
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* Copyright (c) 2003-2005 Vassili Karpov (malc)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_AUDIO_H
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#define QEMU_AUDIO_H
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typedef void (*audio_callback_fn_t) (void *opaque, int avail);
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typedef enum {
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AUD_FMT_U8,
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AUD_FMT_S8,
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AUD_FMT_U16,
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AUD_FMT_S16
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} audfmt_e;
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typedef struct SWVoiceOut SWVoiceOut;
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typedef struct SWVoiceIn SWVoiceIn;
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typedef struct QEMUAudioTimeStamp {
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uint64_t old_ts;
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} QEMUAudioTimeStamp;
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void AUD_vlog (const char *cap, const char *fmt, va_list ap);
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void AUD_log (const char *cap, const char *fmt, ...)
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#ifdef __GNUC__
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__attribute__ ((__format__ (__printf__, 2, 3)))
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#endif
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;
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void AUD_init (void);
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void AUD_help (void);
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SWVoiceOut *AUD_open_out (
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SWVoiceOut *sw,
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const char *name,
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void *callback_opaque,
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audio_callback_fn_t callback_fn,
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int freq,
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int nchannels,
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audfmt_e fmt
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);
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void AUD_close_out (SWVoiceOut *sw);
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int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size);
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int AUD_get_buffer_size_out (SWVoiceOut *sw);
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void AUD_set_active_out (SWVoiceOut *sw, int on);
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int AUD_is_active_out (SWVoiceOut *sw);
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void AUD_init_time_stamp_out (SWVoiceOut *sw,
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QEMUAudioTimeStamp *ts);
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uint64_t AUD_time_stamp_get_elapsed_usec_out (SWVoiceOut *sw,
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QEMUAudioTimeStamp *ts);
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SWVoiceIn *AUD_open_in (
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SWVoiceIn *sw,
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const char *name,
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void *callback_opaque,
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audio_callback_fn_t callback_fn,
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int freq,
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int nchannels,
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audfmt_e fmt
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);
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void AUD_close_in (SWVoiceIn *sw);
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int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size);
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void AUD_adjust_in (SWVoiceIn *sw, int leftover);
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void AUD_set_active_in (SWVoiceIn *sw, int on);
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int AUD_is_active_in (SWVoiceIn *sw);
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void AUD_init_time_stamp_in (SWVoiceIn *sw,
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QEMUAudioTimeStamp *ts);
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uint64_t AUD_time_stamp_get_elapsed_usec_in (SWVoiceIn *sw,
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QEMUAudioTimeStamp *ts);
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static inline void *advance (void *p, int incr)
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{
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uint8_t *d = p;
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return (d + incr);
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}
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uint32_t popcount (uint32_t u);
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inline uint32_t lsbindex (uint32_t u);
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#ifdef __GNUC__
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#define audio_MIN(a, b) ( __extension__ ({ \
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__typeof (a) ta = a; \
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__typeof (b) tb = b; \
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((ta)>(tb)?(tb):(ta)); \
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}))
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#define audio_MAX(a, b) ( __extension__ ({ \
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__typeof (a) ta = a; \
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__typeof (b) tb = b; \
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((ta)<(tb)?(tb):(ta)); \
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}))
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#else
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#define audio_MIN(a, b) ((a)>(b)?(b):(a))
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#define audio_MAX(a, b) ((a)<(b)?(b):(a))
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#endif
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#endif /* audio.h */
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