status_t LibmediaPlayback::Play(int duration_secs) {
audio_channel_mask_t audio_mask =
audio_channel_out_mask_from_count(num_channels_);
const audio_stream_type_t kStreamType = AUDIO_STREAM_MUSIC;
size_t frame_count = 0; // Use default value for frame count.
audio_output_flags_t audio_output_flags = AUDIO_OUTPUT_FLAG_NONE;
AudioTrack* track = new AudioTrack(
kStreamType, sample_rate_, audio_format_, audio_mask, frame_count,
audio_output_flags, LibmediaPlayback::AudioCallback,
reinterpret_cast<void*>(this));
status_t status = track->initCheck();
if (status != OK) {
LOG(ERROR) << "Audio track initialization failed.";
return status;
}
float volume = 0.9;
track->setVolume(volume);
status = track->start();
if (status != OK) {
LOG(ERROR) << "Audio track failed to start.";
return status;
}
sleep(duration_secs);
track->stop();
if (in_file_)
sf_close(in_file_);
else
sine_data_buffer_->release();
return status;
}
int APlaybackDevice::handlePlayback()
{
int bufferSizeInSamples;
bufferSizeInSamples = mBuffer->size() / aluFrameSizeFromFormat(mDevice->Format);
mAudioTrack.start();
while(mPlaybackEnabled) {
aluMixData(mDevice, mBuffer->data(), bufferSizeInSamples);
if(!write(mBuffer)) {
LOGE("Can't write audio buffer into audio track");
mPlaybackEnabled = false;
}
}
mAudioTrack.stop();
mAudioTrack.flush();
return 0;
}
/**
* \brief stop output
* \param audec pointer to audec
* \return 0 on success otherwise negative error code
*/
extern "C" int android_stop(struct aml_audio_dec* audec)
{
adec_print("android out stop");
audio_out_operations_t *out_ops = &audec->aout_ops;
AudioTrack *track = (AudioTrack *)out_ops->private_data;
Mutex::Autolock _l(mLock);
if (!track) {
adec_print("No track instance!\n");
return -1;
}
track->stop();
/* release AudioTrack */
delete track;
out_ops->private_data = NULL;
return 0;
}
/*
==============
SNDDMA_Shutdown
Reset the sound device for exiting
===============
*/
void SNDDMA_Shutdown(void)
{
gAudioTrack.stop();
}
int libmediacb_start(msm_ctx *ctx, int channels, int samplerate) {
__android_log_print(ANDROID_LOG_INFO,"liblossless","libmedia_ START REEEEACHED REACHEDDDDDD1");
status_t status;
int chans;
if(!ctx) return LIBLOSSLESS_ERR_NOCTX;
__android_log_print(ANDROID_LOG_INFO,"liblossless","libmediacb_start ctx=%p chans=%d rate=%d afd=%d atrack=%p",
ctx, channels, samplerate,ctx->afd,ctx->track);
AudioTrack* atrack = (AudioTrack *) ctx->track;
if(atrack && ctx->samplerate == samplerate && ctx->channels == channels) {
__android_log_print(ANDROID_LOG_INFO,"liblossless","same audio track parameters, restarting");
atrack->stop();
atrack->flush();
ctx->cbstart = 0; ctx->cbend = 0;
atrack->start();
return 0;
}
if(!ctx->cbbuf) {
ctx->cbbuf = (unsigned char *) malloc(DEFAULT_CB_BUFSZ);
if(!ctx->cbbuf) return LIBLOSSLESS_ERR_NOMEM;
ctx->cbbuf_size = DEFAULT_CB_BUFSZ;
}
ctx->cbstart = 0; ctx->cbend = 0;
if(!atrack) {
atrack = new AudioTrack();
if(!atrack) {
__android_log_print(ANDROID_LOG_ERROR,"liblossless","could not create AudioTrack!");
return LIBLOSSLESS_ERR_INIT;
}
__android_log_print(ANDROID_LOG_INFO,"liblossless","AudioTrack created at %p. Now trying to setup (buffsz %d)",
atrack, DEFAULT_ATRACK_CONF_BUFSZ);
if(!sdk_version) {
char c[PROP_VALUE_MAX];
if(__system_property_get("ro.build.version.sdk",c) > 0) sscanf(c,"%d",&sdk_version);
else sdk_version = 8;
__android_log_print(ANDROID_LOG_INFO,"liblossless","got sdk_version %d", sdk_version);
}
if(sdk_version > 13) chans = (channels == 2) ? 3 : 1;
else if(sdk_version > 6) chans = (channels == 2) ? 12 : 4;
else chans = channels;
#ifdef BUILD_JB
status = atrack->set(_MUSIC, samplerate, FMTBPS, chans, DEFAULT_ATRACK_CONF_BUFSZ/(2*channels),AUDIO_OUTPUT_FLAG_NONE,cbf,ctx);
#else
status = atrack->set(_MUSIC, samplerate, FMTBPS, chans, DEFAULT_ATRACK_CONF_BUFSZ/(2*channels),0,cbf,ctx);
#endif
if(status != NO_ERROR) {
__android_log_print(ANDROID_LOG_INFO,"liblossless","AudioTrack setup failed");
delete atrack;
return LIBLOSSLESS_ERR_INIT;
}
ctx->track = atrack;
} else {
atrack->stop();
atrack->flush();
ctx->cbstart = 0; ctx->cbend = 0;
__android_log_print(ANDROID_LOG_INFO,"liblossless","trying to reconfigure old AudioTrack");
status = atrack->setSampleRate(samplerate);
if(status != NO_ERROR) {
__android_log_print(ANDROID_LOG_INFO,"liblossless","could not set AudioTrack sample rate");
return LIBLOSSLESS_ERR_INIT;
}
}
__android_log_print(ANDROID_LOG_INFO,"liblossless","AudioTrack setup OK, starting audio!");
ctx->conf_size = DEFAULT_CONF_BUFSZ;
atrack->start();
__android_log_print(ANDROID_LOG_INFO,"liblossless","playback started!");
atrack->setPositionUpdatePeriod(0);
atrack->setMarkerPosition(0);
static int s(0); if(!s) { print_priority(__FUNCTION__); s = 1; }
return 0;
}