reactor::MediaFrame reactor::ColorSpaceReaderFilter::readFrame(void)
{
if(!m_initialized)
{
return ReaderFilter::readFrame();
}
MediaFrame frame = ReaderFilter::readFrame();
sws_scale(m_conversionContext, frame.getBuffer(), frame.getLineSize(), 0, frame.getHeight(),
m_convertedFrame->data, m_convertedFrame->linesize);
return MediaFrame(m_convertedFrame, m_format);
}
static void
VDADecoderCallback (void *decompressionOutputRefCon, CFDictionaryRef frameInfo, OSStatus status, uint32_t infoFlags, CVImageBufferRef imageBuffer)
{
MoonVDADecoder *decoder = (MoonVDADecoder *) decompressionOutputRefCon;
VideoStream *vs = (VideoStream *) decoder->GetStream ();
// FIXME: Is this always 1 thread? Can we optimize this
decoder->GetDeployment ()->RegisterThread ();
Deployment::SetCurrent (decoder->GetDeployment ());
if (imageBuffer == NULL) {
return;
}
OSType format_type = CVPixelBufferGetPixelFormatType (imageBuffer);
if (format_type != kCVPixelFormatType_422YpCbCr8) {
g_warning ("Mismatched format in VDA");
return;
}
MediaFrame *mf = (MediaFrame *) CFDictionaryGetValue (frameInfo, CFSTR ("MoonMediaFrame"));
mf->AddState (MediaFrameVUY2);
mf->FreeBuffer ();
mf->SetBufLen (0);
mf->srcSlideY = 0;
mf->srcSlideH = vs->GetHeight ();
mf->width = vs->GetWidth ();
mf->height = vs->GetHeight ();
CVPixelBufferLockBaseAddress (imageBuffer, 0);
mf->data_stride [0] = (uint8_t *) CVPixelBufferGetBaseAddress (imageBuffer);
mf->srcStride [0] = CVPixelBufferGetBytesPerRow (imageBuffer);
mf->AddState (MediaFrameDecoded);
mf->decoder_specific_data = imageBuffer;
CVPixelBufferRetain (imageBuffer);
decoder->ReportDecodeFrameCompleted (mf);
mf->unref ();
}
void
Mp3FrameReader::ReadFrame ()
{
MpegFrameHeader mpeg;
guint64 duration;
guint32 len;
MediaFrame *frame;
MemoryBuffer *current_source = demuxer->GetCurrentSource ();
guint64 start_position = current_source->GetPosition ();
if (!FindMpegHeader (&mpeg, NULL, current_source)) {
LOG_MP3 ("Mp3FrameReader::ReadFrame (): Not enough data (mpeg header not found or not enough data for entire frame) - requesting more\n");
if (!demuxer->RequestMoreData (ReadFrameCallback)) {
/* No more data */
LOG_MP3 ("Mp3FrameReader::ReadFrame (): reached end of stream.\n");
demuxer->ReportGetFrameCompleted (NULL);
}
return;
}
//printf ("Mp3FrameReader::ReadFrame():\n");
//mpeg_print_info (&mpeg);
if (mpeg.bit_rate == 0) {
// use the most recently specified bit rate
mpeg.bit_rate = bit_rate;
}
bit_rate = mpeg.bit_rate;
duration = mpeg_frame_duration (&mpeg);
AddFrameIndex (demuxer->GetCurrentPosition () + current_source->GetPosition (), cur_pts, duration, bit_rate);
len = (guint32) mpeg_frame_length (&mpeg);
/* Check if we have enough data */
if (current_source->GetRemainingSize () < len) {
/* We need to seek back to where we started reading this frame so that the next time we're called
* we start parsing from the beginning again */
current_source->SeekSet (start_position);
if (!demuxer->RequestMoreData (ReadFrameCallback, MAX (len, 1024))) {
/* No more data */
demuxer->ReportGetFrameCompleted (NULL);
return;
}
return;
}
frame = new MediaFrame (stream);
if (!frame->AllocateBuffer (len)) {
frame->unref ();
return;
}
if (!current_source->Read (frame->GetBuffer (), len)) {
/* This shouldn't happen, we've already checked that we have enough data */
demuxer->ReportErrorOccurred ("Mp3Demuxer could not read from stream.");
frame->unref ();
return;
}
frame->pts = cur_pts;
frame->duration = duration;
frame->AddState (MediaFrameDemuxed);
cur_pts += duration;
demuxer->ReportGetFrameCompleted (frame);
frame->unref ();
}
void H264RealTimeStreamFramer::doGetNextFrame() {
struct timespec TimeSpec = {0, 0};
if (fNeedNextFrame) {
if (fFirstFrame) {
nextTask() = envir().taskScheduler().scheduleDelayedTask(0, (TaskFunc *)&tryGetNextFrame, this);
fFirstFrame = False;
PRINT_LOG(ASSERT, "First H264 frame");
return;
}
MediaFrame * nextFrame = fFrameCapture->GetNextFrame(fCurrentFrame);
if (NULL == nextFrame) {
nextTask() = envir().taskScheduler().scheduleDelayedTask(10000, (TaskFunc *)&tryGetNextFrame, this);
return;
}
// ASSERT(nextFrame->IsH264Frame(), "nextFrame MUST be H264Frame");
PRINT_LOG(ASSERT, "Get %c frame, size = %u", nextFrame->IsKeyFrame() ? 'I' : 'P', nextFrame->Length());
clock_gettime(CLOCK_MONOTONIC, &TimeSpec);
PRINT_LOG(VERBOSE, "Time to get frame : %12ld.%9ld", TimeSpec.tv_sec, TimeSpec.tv_nsec);
fCurrentFrame = dynamic_cast<H264Frame *>(nextFrame);
fNeedNextFrame = False;
fCurrentNaluUnitIndex = 0;
fOffset = 1;
// ASSERT(fCurrentFrame->NaluCount() > 0, "H264 frame MUST have at least 1 nalu unit");
}
const H264Frame::NaluUnit & Nalu = fCurrentFrame->GetNaluUnit(fCurrentNaluUnitIndex);
const uint8_t * addr = Nalu.s_Addr;
uint32_t size = Nalu.s_Length;
uint8_t naluType = (addr[0] & 0x1F);
if (naluType == NALU_TYPE_SPS && fNeedSPS) {
// Save SPS(Sequence Parameter Set)
saveCopyOfSPS((u_int8_t *)addr, size);
fNeedSPS = False;
} else if (naluType == NALU_TYPE_PPS && fNeedPPS) {
// Save PPS(Picture Parameter Set)
saveCopyOfPPS((u_int8_t *)addr, size);
fNeedPPS = False;
}
#ifdef USE_H264_VIDEO_RTP_SINK
fFrameSize = (size > fMaxSize) ? fMaxSize : size;
fNumTruncatedBytes = size - fFrameSize;
memmove(fTo, addr, fFrameSize);
fPresentationTime = fCurrentFrame->TimeStamp();
fCurrentNaluUnitIndex ++;
#else // USE_H264_VIDEO_RTP_SINK
// Make sure max size of the data MUST NOT be greater then (MAX_BYTES_PER_UDP_PACKET - RTP_HEADER_SIZE)
if (fMaxSize > MAX_BYTES_PER_UDP_PACKET - RTP_HEADER_SIZE) {
fMaxSize = MAX_BYTES_PER_UDP_PACKET - RTP_HEADER_SIZE;
}
if (size > fMaxSize) {
fFrameSize = size - fOffset + 2;
fFrameSize = (fFrameSize > fMaxSize) ? fMaxSize : fFrameSize;
memmove(fTo + 2, addr + fOffset, fFrameSize - 2);
fTo[0] = (addr[0] & 0xE0) | 0x1C;
if (fOffset == 1) {
fTo[1] = (addr[0] & 0x1F) | 0x80;
} else if (fOffset + fFrameSize - 2 >= size) {
fTo[1] = (addr[0] & 0x1F) | 0x40;
fCurrentNaluUnitIndex ++;
fOffset = 1;
} else {
fTo[1] = (addr[0] & 0x1F);
}
fOffset += fFrameSize - 2;
} else {
fFrameSize = size;
memmove(fTo, addr, fFrameSize);
fCurrentNaluUnitIndex ++;
}
fPresentationTime = fCurrentFrame->TimeStamp();
fNumTruncatedBytes = 0;
#endif // USE_H264_VIDEO_RTP_SINK
if (fCurrentNaluUnitIndex >= fCurrentFrame->NaluCount()) {
fPictureEndMarker = True;
fNeedNextFrame = True;
fDurationInMicroseconds = fCurrentFrame->Duration();
} else {
fPictureEndMarker = False;
fDurationInMicroseconds = 0;
}
afterGetting(this);
if (fNeedNextFrame)
{
clock_gettime(CLOCK_MONOTONIC, &TimeSpec);
PRINT_LOG(VERBOSE, "Time to sent frame : %12ld.%9ld", TimeSpec.tv_sec, TimeSpec.tv_nsec);
}
}
void RTMPMP4Stream::onMediaFrame(MediaFrame &media)
{
//Depending on the media type
switch (media.GetType())
{
case MediaFrame::Audio:
{
//Create rtmp frame
RTMPAudioFrame *frame = new RTMPAudioFrame(0,512);
//Get audio frame
AudioFrame& audio = (AudioFrame&)media;
//Check codec
switch(audio.GetCodec())
{
case AudioCodec::PCMA:
case AudioCodec::PCMU:
{
WORD raw[512];
DWORD rawsize = 512;
//Decode audio frame
DWORD rawlen = decoder->Decode(audio.GetData(),audio.GetLength(),raw,rawsize);
//Encode frame
DWORD len = encoder->Encode(raw,rawlen,frame->GetMediaData(),frame->GetMaxMediaSize());
//Set length
frame->SetMediaSize(len);
//Set type
frame->SetAudioCodec(RTMPAudioFrame::SPEEX);
frame->SetSoundRate(RTMPAudioFrame::RATE11khz);
frame->SetSamples16Bits(1);
frame->SetStereo(0);
//Set timestamp
frame->SetTimestamp(audio.GetTimeStamp()/8);
break;
}
default:
//Not supported
return;
}
//Send it
PlayMediaFrame(frame);
}
break;
case MediaFrame::Video:
{
//Get video frame
VideoFrame& video = (VideoFrame&)media;
//Create rtmp frame
RTMPVideoFrame *frame = new RTMPVideoFrame(video.GetTimeStamp()/90,video.GetLength());
//Check codec
switch(video.GetCodec())
{
case VideoCodec::H263_1996:
case VideoCodec::H263_1998:
#ifdef FLV1PARSER
{
//Create FLV1parser in case we need it
flv1Parser *parser = new flv1Parser(frame->GetMediaData(),frame->GetMaxMediaSize());
//Proccess
if (!parser->FrameFromH263(video.GetData(),video.GetLength()))
throw new std::exception();
//Set lengtht
frame->SetMediaSize(parser->GetSize());
//If it is intra
if (video.IsIntra())
//Set type
frame->SetFrameType(RTMPVideoFrame::INTRA);
else
//Set type
frame->SetFrameType(RTMPVideoFrame::INTER);
//Set type
frame->SetVideoCodec(RTMPVideoFrame::FLV1);
}
#endif
break;
case VideoCodec::H264:
{
//Set Codec
frame->SetVideoCodec(RTMPVideoFrame::AVC);
//If it is intra
if (video.IsIntra())
{
//Set type
frame->SetFrameType(RTMPVideoFrame::INTRA);
//If we have one
if (desc)
{
//Create the fraame
RTMPVideoFrame fdesc(frame->GetTimestamp(),desc);
//Play it
PlayMediaFrame(&fdesc);
}
} else {
//Set type
frame->SetFrameType(RTMPVideoFrame::INTER);
}
//Set NALU type
frame->SetAVCType(1);
//Set no delay
frame->SetAVCTS(0);
//Set Data
frame->SetVideoFrame(video.GetData(),video.GetLength());
break;
}
default:
//Not supported
return;
}
//Send it
PlayMediaFrame(frame);
//Delete it
delete(frame);
}
break;
}
}
