static int aout_thread_n(JNIEnv *env, SDL_Aout *aout)
{
SDL_Aout_Opaque *opaque = aout->opaque;
SDL_Android_AudioTrack *atrack = opaque->atrack;
SDL_AudioCallback audio_cblk = opaque->spec.callback;
void *userdata = opaque->spec.userdata;
uint8_t *buffer = opaque->buffer;
int copy_size = opaque->buffer_size;
assert(atrack);
assert(buffer);
SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
if (!opaque->abort_request && !opaque->pause_on)
SDL_Android_AudioTrack_play(env, atrack);
while (!opaque->abort_request) {
SDL_LockMutex(opaque->wakeup_mutex);
if (!opaque->abort_request && opaque->pause_on) {
SDL_Android_AudioTrack_pause(env, atrack);
while (!opaque->abort_request && opaque->pause_on) {
SDL_CondWaitTimeout(opaque->wakeup_cond, opaque->wakeup_mutex, 1000);
}
if (!opaque->abort_request && !opaque->pause_on)
SDL_Android_AudioTrack_play(env, atrack);
}
if (opaque->need_flush) {
opaque->need_flush = 0;
SDL_Android_AudioTrack_flush(env, atrack);
}
if (opaque->need_set_volume) {
opaque->need_set_volume = 0;
SDL_Android_AudioTrack_set_volume(env, atrack, opaque->left_volume, opaque->right_volume);
}
SDL_UnlockMutex(opaque->wakeup_mutex);
audio_cblk(userdata, buffer, copy_size);
if (opaque->need_flush) {
SDL_Android_AudioTrack_flush(env, atrack);
opaque->need_flush = false;
}
if (opaque->need_flush) {
opaque->need_flush = 0;
SDL_Android_AudioTrack_flush(env, atrack);
} else {
int written = SDL_Android_AudioTrack_write_byte(env, atrack, buffer, copy_size);
if (written != copy_size) {
ALOGW("AudioTrack: not all data copied %d/%d", (int)written, (int)copy_size);
}
}
// TODO: 1 if callback return -1 or 0
}
SDL_Android_AudioTrack_free(env, atrack);
return 0;
}
int aout_thread_n(JNIEnv *env, SDL_Aout *aout)
{
SDL_Aout_Opaque *opaque = aout->opaque;
SDL_AndroidAudioTrack *atrack = opaque->atrack;
SDL_AudioCallback audio_cblk = opaque->spec.callback;
void *userdata = opaque->spec.userdata;
uint8_t *buffer = opaque->buffer;
int copy_size = 256;
assert(atrack);
assert(buffer);
SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
if (!opaque->abort_request && !opaque->pause_on)
sdl_audiotrack_play(env, atrack);
while (!opaque->abort_request) {
SDL_LockMutex(opaque->wakeup_mutex);
if (!opaque->abort_request && opaque->pause_on) {
sdl_audiotrack_pause(env, atrack);
while (!opaque->abort_request && opaque->pause_on) {
SDL_CondWaitTimeout(opaque->wakeup_cond, opaque->wakeup_mutex, 1000);
}
if (!opaque->abort_request && !opaque->pause_on)
sdl_audiotrack_play(env, atrack);
}
if (opaque->need_flush) {
opaque->need_flush = 0;
sdl_audiotrack_flush(env, atrack);
}
SDL_UnlockMutex(opaque->wakeup_mutex);
audio_cblk(userdata, buffer, copy_size);
if (opaque->need_flush) {
sdl_audiotrack_flush(env, atrack);
opaque->need_flush = false;
}
if (opaque->need_flush) {
opaque->need_flush = 0;
sdl_audiotrack_flush(env, atrack);
} else {
sdl_audiotrack_write_byte(env, atrack, buffer, copy_size);
}
// TODO: 1 if callback return -1 or 0
}
sdl_audiotrack_free(env, atrack);
return 0;
}
static int aout_thread_n(SDL_Aout *aout)
{
SDL_Aout_Opaque *opaque = aout->opaque;
SLPlayItf slPlayItf = opaque->slPlayItf;
SLAndroidSimpleBufferQueueItf slBufferQueueItf = opaque->slBufferQueueItf;
SLVolumeItf slVolumeItf = opaque->slVolumeItf;
SDL_AudioCallback audio_cblk = opaque->spec.callback;
void *userdata = opaque->spec.userdata;
uint8_t *next_buffer = NULL;
int next_buffer_index = 0;
size_t bytes_per_buffer = opaque->bytes_per_buffer;
SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
if (!opaque->abort_request && !opaque->pause_on)
(*slPlayItf)->SetPlayState(slPlayItf, SL_PLAYSTATE_PLAYING);
while (!opaque->abort_request) {
SLAndroidSimpleBufferQueueState slState = {0};
SLresult slRet = (*slBufferQueueItf)->GetState(slBufferQueueItf, &slState);
if (slRet != SL_RESULT_SUCCESS) {
ALOGE("%s: slBufferQueueItf->GetState() failed\n", __func__);
SDL_UnlockMutex(opaque->wakeup_mutex);
}
SDL_LockMutex(opaque->wakeup_mutex);
if (!opaque->abort_request && (opaque->pause_on || slState.count >= OPENSLES_BUFFERS)) {
while (!opaque->abort_request && (opaque->pause_on || slState.count >= OPENSLES_BUFFERS)) {
if (!opaque->pause_on) {
(*slPlayItf)->SetPlayState(slPlayItf, SL_PLAYSTATE_PLAYING);
}
SDL_CondWaitTimeout(opaque->wakeup_cond, opaque->wakeup_mutex, 1000);
SLresult slRet = (*slBufferQueueItf)->GetState(slBufferQueueItf, &slState);
if (slRet != SL_RESULT_SUCCESS) {
ALOGE("%s: slBufferQueueItf->GetState() failed\n", __func__);
SDL_UnlockMutex(opaque->wakeup_mutex);
}
if (opaque->pause_on)
(*slPlayItf)->SetPlayState(slPlayItf, SL_PLAYSTATE_PAUSED);
}
if (!opaque->abort_request && !opaque->pause_on) {
(*slPlayItf)->SetPlayState(slPlayItf, SL_PLAYSTATE_PLAYING);
}
}
if (opaque->need_flush) {
opaque->need_flush = 0;
(*slBufferQueueItf)->Clear(slBufferQueueItf);
}
#if 0
if (opaque->need_set_volume) {
opaque->need_set_volume = 0;
// FIXME: set volume here
}
#endif
if (opaque->need_set_volume) {
opaque->need_set_volume = 0;
SLmillibel level = android_amplification_to_sles((opaque->left_volume + opaque->right_volume) / 2);
ALOGI("slVolumeItf->SetVolumeLevel((%f, %f) -> %d)\n", opaque->left_volume, opaque->right_volume, (int)level);
slRet = (*slVolumeItf)->SetVolumeLevel(slVolumeItf, level);
if (slRet != SL_RESULT_SUCCESS) {
ALOGE("slVolumeItf->SetVolumeLevel failed %d\n", (int)slRet);
// just ignore error
}
}
SDL_UnlockMutex(opaque->wakeup_mutex);
next_buffer = opaque->buffer + next_buffer_index * bytes_per_buffer;
next_buffer_index = (next_buffer_index + 1) % OPENSLES_BUFFERS;
audio_cblk(userdata, next_buffer, bytes_per_buffer);
if (opaque->need_flush) {
(*slBufferQueueItf)->Clear(slBufferQueueItf);
opaque->need_flush = false;
}
if (opaque->need_flush) {
ALOGE("flush");
opaque->need_flush = 0;
(*slBufferQueueItf)->Clear(slBufferQueueItf);
} else {
slRet = (*slBufferQueueItf)->Enqueue(slBufferQueueItf, next_buffer, bytes_per_buffer);
if (slRet == SL_RESULT_SUCCESS) {
// do nothing
} else if (slRet == SL_RESULT_BUFFER_INSUFFICIENT) {
// don't retry, just pass through
ALOGE("SL_RESULT_BUFFER_INSUFFICIENT\n");
} else {
ALOGE("slBufferQueueItf->Enqueue() = %d\n", (int)slRet);
break;
}
}
// TODO: 1 if callback return -1 or 0
}
return 0;
}
