void
anp_audio_start(ANPAudioTrack* s)
{
if (s == NULL || s->output_unit == NULL) {
return;
}
if (s->keepGoing) {
// we are already playing. Ignore.
return;
}
JNIEnv *jenv = GetJNIForThread();
if (!jenv)
return;
mozilla::AutoLocalJNIFrame autoFrame(jenv, 0);
jenv->CallVoidMethod(s->output_unit, at.play);
if (autoFrame.CheckForException()) {
jenv->DeleteGlobalRef(s->at_class);
free(s);
return;
}
s->isStopped = false;
s->keepGoing = true;
// AudioRunnable now owns the ANPAudioTrack
nsRefPtr<AudioRunnable> runnable = new AudioRunnable(s);
nsCOMPtr<nsIThread> thread;
NS_NewThread(getter_AddRefs(thread), runnable);
}
void
anp_audio_start(ANPAudioTrack* s)
{
if (s == nullptr || s->output_unit == nullptr) {
return;
}
if (s->keepGoing) {
// we are already playing. Ignore.
return;
}
JNIEnv* const jenv = mozilla::jni::GetEnvForThread();
mozilla::AutoLocalJNIFrame autoFrame(jenv, 0);
jenv->CallVoidMethod(s->output_unit, at.play);
if (autoFrame.CheckForException()) {
jenv->DeleteGlobalRef(s->at_class);
delete s;
return;
}
s->isStopped = false;
s->keepGoing = true;
// AudioRunnable now owns the ANPAudioTrack
RefPtr<AudioRunnable> runnable = new AudioRunnable(s);
nsCOMPtr<nsIThread> thread;
NS_NewNamedThread("Android Audio", getter_AddRefs(thread), runnable);
}
void
anp_audio_pause(ANPAudioTrack* s)
{
if (s == nullptr || s->output_unit == nullptr) {
return;
}
JNIEnv* const jenv = mozilla::jni::GetEnvForThread();
mozilla::AutoLocalJNIFrame autoFrame(jenv, 0);
jenv->CallVoidMethod(s->output_unit, at.pause);
}
void
anp_audio_stop(ANPAudioTrack* s)
{
if (s == nullptr || s->output_unit == nullptr) {
return;
}
s->isStopped = true;
JNIEnv *jenv = GetJNIForThread();
mozilla::AutoLocalJNIFrame autoFrame(jenv, 0);
jenv->CallVoidMethod(s->output_unit, at.stop);
}
void
anp_audio_pause(ANPAudioTrack* s)
{
if (s == NULL || s->output_unit == NULL) {
return;
}
JNIEnv *jenv = GetJNIForThread();
if (!jenv)
return;
mozilla::AutoLocalJNIFrame autoFrame(jenv, 0);
jenv->CallVoidMethod(s->output_unit, at.pause);
}
ANPAudioTrack*
anp_audio_newTrack(uint32_t sampleRate, // sampling rate in Hz
ANPSampleFormat format,
int channelCount, // MONO=1, STEREO=2
ANPAudioCallbackProc proc,
void* user)
{
ANPAudioTrack *s = (ANPAudioTrack*) malloc(sizeof(ANPAudioTrack));
if (s == NULL) {
return NULL;
}
JNIEnv *jenv = GetJNIForThread();
if (!jenv)
return NULL;
s->at_class = init_jni_bindings(jenv);
s->rate = sampleRate;
s->channels = channelCount;
s->bufferSize = s->rate * s->channels;
s->isStopped = true;
s->keepGoing = false;
s->user = user;
s->proc = proc;
s->format = format;
int jformat;
switch (format) {
case kPCM16Bit_ANPSampleFormat:
jformat = ENCODING_PCM_16BIT;
break;
case kPCM8Bit_ANPSampleFormat:
jformat = ENCODING_PCM_8BIT;
break;
default:
LOG("Unknown audio format. defaulting to 16bit.");
jformat = ENCODING_PCM_16BIT;
break;
}
int jChannels;
switch (channelCount) {
case 1:
jChannels = CHANNEL_OUT_MONO;
break;
case 2:
jChannels = CHANNEL_OUT_STEREO;
break;
default:
LOG("Unknown channel count. defaulting to mono.");
jChannels = CHANNEL_OUT_MONO;
break;
}
mozilla::AutoLocalJNIFrame autoFrame(jenv);
jobject obj = jenv->NewObject(s->at_class,
at.constructor,
STREAM_MUSIC,
s->rate,
jChannels,
jformat,
s->bufferSize,
MODE_STREAM);
if (autoFrame.CheckForException() || obj == NULL) {
jenv->DeleteGlobalRef(s->at_class);
free(s);
return NULL;
}
jint state = jenv->CallIntMethod(obj, at.getstate);
if (autoFrame.CheckForException() || state == STATE_UNINITIALIZED) {
jenv->DeleteGlobalRef(s->at_class);
free(s);
return NULL;
}
s->output_unit = jenv->NewGlobalRef(obj);
return s;
}
NS_IMETHODIMP
AudioRunnable::Run()
{
JNIEnv* jenv = GetJNIForThread();
if (!jenv)
return NS_ERROR_FAILURE;
mozilla::AutoLocalJNIFrame autoFrame(jenv, 2);
jbyteArray bytearray = jenv->NewByteArray(mTrack->bufferSize);
if (!bytearray) {
LOG("AudioRunnable:: Run. Could not create bytearray");
return NS_ERROR_FAILURE;
}
jbyte *byte = jenv->GetByteArrayElements(bytearray, NULL);
if (!byte) {
LOG("AudioRunnable:: Run. Could not create bytearray");
return NS_ERROR_FAILURE;
}
ANPAudioBuffer buffer;
buffer.channelCount = mTrack->channels;
buffer.format = mTrack->format;
buffer.bufferData = (void*) byte;
while (mTrack->keepGoing)
{
// reset the buffer size
buffer.size = mTrack->bufferSize;
// Get data from the plugin
mTrack->proc(kMoreData_ANPAudioEvent, mTrack->user, &buffer);
if (buffer.size == 0) {
LOG("%p - kMoreData_ANPAudioEvent", mTrack);
continue;
}
size_t wroteSoFar = 0;
jint retval;
do {
retval = jenv->CallIntMethod(mTrack->output_unit,
at.write,
bytearray,
wroteSoFar,
buffer.size - wroteSoFar);
if (retval < 0) {
LOG("%p - Write failed %d", mTrack, retval);
break;
}
wroteSoFar += retval;
} while(wroteSoFar < buffer.size);
}
jenv->CallVoidMethod(mTrack->output_unit, at.release);
jenv->DeleteGlobalRef(mTrack->output_unit);
jenv->DeleteGlobalRef(mTrack->at_class);
free(mTrack);
jenv->ReleaseByteArrayElements(bytearray, byte, 0);
return NS_OK;
}