| /* |
| * QEMU Audio subsystem header |
| * |
| * Copyright (c) 2003-2005 Vassili Karpov (malc) |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #ifndef QEMU_AUDIO_H |
| #define QEMU_AUDIO_H |
| |
| #include "qemu/queue.h" |
| |
| typedef void (*audio_callback_fn) (void *opaque, int avail); |
| |
| typedef enum { |
| AUD_FMT_U8, |
| AUD_FMT_S8, |
| AUD_FMT_U16, |
| AUD_FMT_S16, |
| AUD_FMT_U32, |
| AUD_FMT_S32 |
| } audfmt_e; |
| |
| #ifdef HOST_WORDS_BIGENDIAN |
| #define AUDIO_HOST_ENDIANNESS 1 |
| #else |
| #define AUDIO_HOST_ENDIANNESS 0 |
| #endif |
| |
| struct audsettings { |
| int freq; |
| int nchannels; |
| audfmt_e fmt; |
| int endianness; |
| }; |
| |
| typedef enum { |
| AUD_CNOTIFY_ENABLE, |
| AUD_CNOTIFY_DISABLE |
| } audcnotification_e; |
| |
| struct audio_capture_ops { |
| void (*notify) (void *opaque, audcnotification_e cmd); |
| void (*capture) (void *opaque, void *buf, int size); |
| void (*destroy) (void *opaque); |
| }; |
| |
| struct capture_ops { |
| void (*info) (void *opaque); |
| void (*destroy) (void *opaque); |
| }; |
| |
| typedef struct CaptureState { |
| void *opaque; |
| struct capture_ops ops; |
| QLIST_ENTRY (CaptureState) entries; |
| } CaptureState; |
| |
| typedef struct SWVoiceOut SWVoiceOut; |
| typedef struct CaptureVoiceOut CaptureVoiceOut; |
| typedef struct SWVoiceIn SWVoiceIn; |
| |
| typedef struct QEMUSoundCard { |
| char *name; |
| QLIST_ENTRY (QEMUSoundCard) entries; |
| } QEMUSoundCard; |
| |
| typedef struct QEMUAudioTimeStamp { |
| uint64_t old_ts; |
| } QEMUAudioTimeStamp; |
| |
| void AUD_vlog (const char *cap, const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0); |
| void AUD_log (const char *cap, const char *fmt, ...) GCC_FMT_ATTR(2, 3); |
| |
| void AUD_help (void); |
| void AUD_register_card (const char *name, QEMUSoundCard *card); |
| void AUD_remove_card (QEMUSoundCard *card); |
| CaptureVoiceOut *AUD_add_capture ( |
| struct audsettings *as, |
| struct audio_capture_ops *ops, |
| void *opaque |
| ); |
| void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque); |
| |
| SWVoiceOut *AUD_open_out ( |
| QEMUSoundCard *card, |
| SWVoiceOut *sw, |
| const char *name, |
| void *callback_opaque, |
| audio_callback_fn callback_fn, |
| struct audsettings *settings |
| ); |
| |
| void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw); |
| int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size); |
| int AUD_get_buffer_size_out (SWVoiceOut *sw); |
| void AUD_set_active_out (SWVoiceOut *sw, int on); |
| int AUD_is_active_out (SWVoiceOut *sw); |
| |
| void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); |
| uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); |
| |
| void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol); |
| void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol); |
| |
| SWVoiceIn *AUD_open_in ( |
| QEMUSoundCard *card, |
| SWVoiceIn *sw, |
| const char *name, |
| void *callback_opaque, |
| audio_callback_fn callback_fn, |
| struct audsettings *settings |
| ); |
| |
| void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw); |
| int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size); |
| void AUD_set_active_in (SWVoiceIn *sw, int on); |
| int AUD_is_active_in (SWVoiceIn *sw); |
| |
| void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); |
| uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); |
| |
| static inline void *advance (void *p, int incr) |
| { |
| uint8_t *d = p; |
| return (d + incr); |
| } |
| |
| #ifdef __GNUC__ |
| #define audio_MIN(a, b) ( __extension__ ({ \ |
| __typeof (a) ta = a; \ |
| __typeof (b) tb = b; \ |
| ((ta)>(tb)?(tb):(ta)); \ |
| })) |
| |
| #define audio_MAX(a, b) ( __extension__ ({ \ |
| __typeof (a) ta = a; \ |
| __typeof (b) tb = b; \ |
| ((ta)<(tb)?(tb):(ta)); \ |
| })) |
| #else |
| #define audio_MIN(a, b) ((a)>(b)?(b):(a)) |
| #define audio_MAX(a, b) ((a)<(b)?(b):(a)) |
| #endif |
| |
| int wav_start_capture (CaptureState *s, const char *path, int freq, |
| int bits, int nchannels); |
| |
| #endif /* QEMU_AUDIO_H */ |