bool MediaEngine::seekTo(s64 timestamp, int videoPixelMode) {
if (timestamp <= 0) {
return true;
}
// Just doing it the not so great way to be sure audio is in sync.
int timeout = 1000;
while (getVideoTimeStamp() < timestamp - 3003) {
if (getAudioTimeStamp() < getVideoTimeStamp() - 4180 * 2) {
getNextAudioFrame(NULL, NULL, NULL);
}
if (!stepVideo(videoPixelMode, true)) {
return false;
}
if (--timeout <= 0) {
return true;
}
}
while (getAudioTimeStamp() < getVideoTimeStamp() - 4180 * 2) {
if (getNextAudioFrame(NULL, NULL, NULL) == 0) {
return false;
}
if (--timeout <= 0) {
return true;
}
}
return true;
}
int MediaEngine::getAudioSamples(u32 bufferPtr) {
if (!Memory::IsValidAddress(bufferPtr)) {
ERROR_LOG_REPORT(ME, "Ignoring bad audio decode address %08x during video playback", bufferPtr);
}
u8 *buffer = Memory::GetPointer(bufferPtr);
if (!m_demux) {
return 0;
}
u8 *audioFrame = 0;
int headerCode1, headerCode2;
int frameSize = getNextAudioFrame(&audioFrame, &headerCode1, &headerCode2);
if (frameSize == 0) {
return 0;
}
int outbytes = 0;
if (m_audioContext != nullptr) {
if (headerCode1 == 0x24) {
// This means mono audio - tell the decoder to expect it before the first frame.
// Note that it will always send us back stereo audio.
m_audioContext->SetChannels(1);
}
if (!m_audioContext->Decode(audioFrame, frameSize, buffer, &outbytes)) {
ERROR_LOG(ME, "Audio (%s) decode failed during video playback", GetCodecName(m_audioType));
}
#ifndef MOBILE_DEVICE
CBreakPoints::ExecMemCheck(bufferPtr, true, outbytes, currentMIPS->pc);
#endif
}
return 0x2000;
}
bool Composer::renderAudioFrame( Frame *dst, int nSamples )
{
int i = 0;
Frame *f;
FrameSample *sample;
Profile profile = sampler->getProfile();
int bps = profile.getAudioChannels() * profile.bytesPerChannel( &profile );
sampler->getAudioTracks( dst, nSamples );
if ( !getNextAudioFrame( dst, i ) ) {
// make silence
dst->setAudioFrame( profile.getAudioChannels(), profile.getAudioSampleRate(), profile.bytesPerChannel( &profile ), nSamples, sampler->currentPTSAudio() );
memset( dst->data(), 0, nSamples * bps );
return true;
}
// process first frame
sample = dst->sample->frames[i - 1];
// copy in dst
AudioCopy ac;
f = sample->frame;
if ( !f )
f = sample->transitionFrame.frame;
nSamples = f->audioSamples();
Buffer *buf = processAudioFrame( sample, nSamples, bps, &profile );
dst->setAudioFrame( f->profile.getAudioChannels(), f->profile.getAudioSampleRate(), f->profile.bytesPerChannel( &f->profile ), nSamples, f->pts() );
ac.process( f, buf, dst->getBuffer(), &profile );
BufferPool::globalInstance()->releaseBuffer( buf );
// process remaining frames
AudioMix am;
while ( getNextAudioFrame( dst, i ) ) {
sample = dst->sample->frames[i - 1];
buf = processAudioFrame( sample, nSamples, bps, &profile );
// mix
f = sample->frame;
if ( !f )
f = sample->transitionFrame.frame;
am.process( f, buf, dst, dst->getBuffer(), dst->getBuffer(), &profile );
BufferPool::globalInstance()->releaseBuffer( buf );
}
return true;
}
audiodata madaudiofile::getNextAudioSlice(int duration, bool enablefft) {
if (outputLength==0)
getNextAudioFrame();
audiodata aud((double)duration, samplerate, getNChannels(), 16, enablefft);
int currentDuration = 0;
/* while(currentDuration < duration && outputLength != 0) {
// Adds data until end_pos or until end of the frame has been reached.
// Returns the last added pos+1*/
currentDuration = aud.pushData(OutputBuffer, &outputPosition,
outputLength, duration);
if (currentDuration < duration && outputPosition >= outputLength)
getNextAudioFrame();
//}
current_pos += currentDuration;
return aud;
}
int MediaEngine::getAudioSamples(u32 bufferPtr) {
if (!Memory::IsValidAddress(bufferPtr)) {
ERROR_LOG_REPORT(ME, "Ignoring bad audio decode address %08x during video playback", bufferPtr);
}
u8 *buffer = Memory::GetPointer(bufferPtr);
if (!m_demux) {
return 0;
}
u8 *audioFrame = 0;
int headerCode1, headerCode2;
int frameSize = getNextAudioFrame(&audioFrame, &headerCode1, &headerCode2);
if (frameSize == 0) {
return 0;
}
int outbytes = 0;
if (m_audioContext != NULL) {
if (!m_audioContext->Decode(audioFrame, frameSize, buffer, &outbytes)) {
ERROR_LOG(ME, "Audio (%s) decode failed during video playback", GetCodecName(m_audioType));
}
#ifndef MOBILE_DEVICE
CBreakPoints::ExecMemCheck(bufferPtr, true, outbytes, currentMIPS->pc);
#endif
}
if (headerCode1 == 0x24) {
// it a mono atrac3plus, convert it to stereo
s16 *outbuf = (s16*)buffer;
s16 *inbuf = (s16*)buffer;
for (int i = 0x800 - 1; i >= 0; i--) {
s16 sample = inbuf[i];
outbuf[i * 2] = sample;
outbuf[i * 2 + 1] = sample;
}
}
return 0x2000;
}
