Method getNextFrameFromDecoder

YUViewLib/src/decoder/decoderVTM.cpp:258–304

}

bool decoderVTM::getNextFrameFromDecoder()
{
  DEBUG_DECVTM("decoderVTM::getNextFrameFromDecoder");

  currentVTMPic = this->lib.libVTMDec_get_picture(decoder);
  if (currentVTMPic == nullptr)
  {
    decoderState = DecoderState::NeedsMoreData;
    return false;
  }

  // Check the validity of the picture
  auto picSize = Size(this->lib.libVTMDec_get_picture_width(currentVTMPic, LIBVTMDEC_LUMA),
                      this->lib.libVTMDec_get_picture_height(currentVTMPic, LIBVTMDEC_LUMA));
  if (!picSize.isValid())
    DEBUG_DECVTM("decoderVTM::getNextFrameFromDecoder got invalid size");
  auto subsampling =
      convertFromInternalSubsampling(this->lib.libVTMDec_get_chroma_format(currentVTMPic));
  if (subsampling == Subsampling::UNKNOWN)
    DEBUG_DECVTM("decoderVTM::getNextFrameFromDecoder got invalid chroma format");
  auto bitDepth = functions::clipToUnsigned(
      this->lib.libVTMDec_get_internal_bit_depth(currentVTMPic, LIBVTMDEC_LUMA));
  if (bitDepth < 8 || bitDepth > 16)
    DEBUG_DECVTM("decoderVTM::getNextFrameFromDecoder got invalid bit depth");

  if (!frameSize.isValid() && !formatYUV.isValid())
  {
    // Set the values
    frameSize = picSize;
    formatYUV = video::yuv::PixelFormatYUV(subsampling, bitDepth);
  }
  else
  {
    // Check the values against the previously set values
    if (frameSize != picSize)
      return setErrorB("Received a frame of different size");
    if (formatYUV.getSubsampling() != subsampling)
      return setErrorB("Received a frame with different subsampling");
    if (formatYUV.getBitsPerSample() != bitDepth)
      return setErrorB("Received a frame with different bit depth");
  }

  DEBUG_DECVTM("decoderVTM::getNextFrameFromDecoder got a valid frame wit POC %d",
               this->lib.libVTMDec_get_POC(currentVTMPic));
  currentOutputBuffer.clear();
  return true;
}

bool decoderVTM::pushData(QByteArray &data)
{