qemu/audio/coreaudio.m

245 static int coreaudio_buf_lock (coreaudioVoiceOut *core, const char *fn_name)
249     err = pthread_mutex_lock (&core->buf_mutex);
258 static int coreaudio_buf_unlock (coreaudioVoiceOut *core, const char *fn_name)
262     err = pthread_mutex_unlock (&core->buf_mutex);
274         coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;     \
277         if (coreaudio_buf_lock(core, "coreaudio_" #name)) {         \
283         coreaudio_buf_unlock(core, "coreaudio_" #name);             \
312     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hwptr;
315     if (coreaudio_buf_lock (core, "audioDeviceIOProc")) {
320     if (inDevice != core->outputDeviceID) {
321         coreaudio_buf_unlock (core, "audioDeviceIOProc(old device)");
325     frameCount = core->audioDevicePropertyBufferFrameSize;
331         coreaudio_buf_unlock (core, "audioDeviceIOProc(empty)");
351     coreaudio_buf_unlock (core, "audioDeviceIOProc");
355 static OSStatus init_out_device(coreaudioVoiceOut *core)
361         .mBitsPerChannel = core->hw.info.bits,
362         .mBytesPerFrame = core->hw.info.bytes_per_frame,
363         .mBytesPerPacket = core->hw.info.bytes_per_frame,
364         .mChannelsPerFrame = core->hw.info.nchannels,
368         .mSampleRate = core->hw.info.freq
371     status = coreaudio_get_voice(&core->outputDeviceID);
377     if (core->outputDeviceID == kAudioDeviceUnknown) {
383     status = coreaudio_get_framesizerange(core->outputDeviceID,
394     if (frameRange.mMinimum > core->frameSizeSetting) {
395         core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMinimum;
397     } else if (frameRange.mMaximum < core->frameSizeSetting) {
398         core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMaximum;
401         core->audioDevicePropertyBufferFrameSize = core->frameSizeSetting;
405     status = coreaudio_set_framesize(core->outputDeviceID,
406                                      &core->audioDevicePropertyBufferFrameSize);
413                                     (uint32_t)core->audioDevicePropertyBufferFrameSize);
418     status = coreaudio_get_framesize(core->outputDeviceID,
419                                      &core->audioDevicePropertyBufferFrameSize);
428     core->hw.samples = core->bufferCount * core->audioDevicePropertyBufferFrameSize;
431     status = coreaudio_set_streamformat(core->outputDeviceID,
440         core->outputDeviceID = kAudioDeviceUnknown;
454     core->ioprocid = NULL;
455     status = AudioDeviceCreateIOProcID(core->outputDeviceID,
457                                        &core->hw,
458                                        &core->ioprocid);
462     if (status != kAudioHardwareNoError || core->ioprocid == NULL) {
464         core->outputDeviceID = kAudioDeviceUnknown;
471 static void fini_out_device(coreaudioVoiceOut *core)
477     status = coreaudio_get_isrunning(core->outputDeviceID, &isrunning);
485             status = AudioDeviceStop(core->outputDeviceID, core->ioprocid);
493     status = AudioDeviceDestroyIOProcID(core->outputDeviceID,
494                                         core->ioprocid);
498     core->outputDeviceID = kAudioDeviceUnknown;
501 static void update_device_playback_state(coreaudioVoiceOut *core)
506     status = coreaudio_get_isrunning(core->outputDeviceID, &isrunning);
516     if (core->enabled) {
519             status = AudioDeviceStart(core->outputDeviceID, core->ioprocid);
527             status = AudioDeviceStop(core->outputDeviceID,
528                                      core->ioprocid);
543     coreaudioVoiceOut *core = in_client_data;
547     if (core->outputDeviceID) {
548         fini_out_device(core);
551     if (!init_out_device(core)) {
552         update_device_playback_state(core);
563     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
570     err = pthread_mutex_init(&core->buf_mutex, NULL);
581     core->frameSizeSetting = audio_buffer_frames(
584     core->bufferCount = cpdo->has_buffer_count ? cpdo->buffer_count : 4;
588                                             core);
595     if (init_out_device(core)) {
599                                                    core);
615     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
620                                                core);
625     fini_out_device(core);
628     err = pthread_mutex_destroy(&core->buf_mutex);
636     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
638     core->enabled = enable;
639     update_device_playback_state(core);