void SoundStream::loop(double volume) {
int numQueued = 0;
AL(alGetSourcei(source.getId(), AL_BUFFERS_QUEUED, &numQueued));
if (numQueued == 0) { /*fill and queue initial buffers*/
vector<char> data = readSoundData(*file, streamingBufferSize);
AL(alBufferData(buffers[0], (info->channels > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16, data.data(),
data.size(), info->rate));
data = readSoundData(*file, streamingBufferSize);
AL(alBufferData(buffers[1], (info->channels > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16, data.data(),
data.size(), info->rate));
AL(alSourceQueueBuffers(source.getId(), 2, buffers));
AL(alSourcef(source.getId(), AL_GAIN, volume));
AL(alSourcePlay(source.getId()));
startedPlaying = true;
//CHECK(isPlaying()); fails if I unplug/plug the speaker cable...?
} else { /*refill processed buffers*/
int numProcessed = 0;
AL(alGetSourcei(source.getId(), AL_BUFFERS_PROCESSED, &numProcessed));
while (numProcessed--) {
vector<char> data = readSoundData(*file, streamingBufferSize);
if (data.size() == 0)
break;
else {
ALuint buffer = 0;
AL(alSourceUnqueueBuffers(source.getId(), 1, &buffer));
AL(alBufferData(buffer, (info->channels > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16, data.data(),
data.size(), info->rate));
AL(alSourceQueueBuffers(source.getId(), 1, &buffer));
}
}
}
sleep_for(milliseconds(10));
}
SoundBuffer::SoundBuffer(const FilePath& path) {
OggVorbis_File file;
CHECK(ov_fopen(path.getPath(), &file) == 0) << "Error opening audio file: " << path;
vorbis_info* info = ov_info(&file, -1);
ov_raw_seek(&file, 0);
vector<char> buffer = readSoundData(file);
OpenalId id;
AL(alGenBuffers(1, &id));
AL(alBufferData(id, (info->channels > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16, buffer.data(), buffer.size(),
info->rate));
bufferId = id;
ov_clear(&file);
}
bool DXADecoder::loadStream(Common::SeekableReadStream *stream) {
close();
uint32 tag = stream->readUint32BE();
if (tag != MKTAG('D','E','X','A')) {
close();
return false;
}
DXAVideoTrack *track = new DXAVideoTrack(stream);
addTrack(track);
readSoundData(stream);
track->setFrameStartPos();
return true;
}
