Method decodeFrame

YUViewLib/src/decoder/decoderDav1d.cpp:300–351

}

bool decoderDav1d::decodeFrame()
{
  if (decoder == nullptr)
    return false;

  curPicture.clear();

  int res = this->lib.dav1d_get_picture(decoder, curPicture.getPicture());
  if (res >= 0)
  {
    // We did get a picture
    // Get the resolution / yuv format from the frame
    auto s = curPicture.getFrameSize();
    if (!s.isValid())
      DEBUG_DAV1D("decoderDav1d::decodeFrame got invalid frame size");
    auto subsampling = curPicture.getSubsampling();
    if (subsampling == Subsampling::UNKNOWN)
      DEBUG_DAV1D("decoderDav1d::decodeFrame got invalid subsampling");
    auto bitDepth = functions::clipToUnsigned(curPicture.getBitDepth());
    if (bitDepth < 8 || bitDepth > 16)
      DEBUG_DAV1D("decoderDav1d::decodeFrame got invalid bit depth");

    if (!frameSize.isValid() && !formatYUV.isValid())
    {
      // Set the values
      frameSize = s;
      formatYUV = video::yuv::PixelFormatYUV(subsampling, bitDepth);
    }
    else
    {
      // Check the values against the previously set values
      if (frameSize != s)
        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_DAV1D("decoderDav1d::decodeFrame Picture decoded - switching to retrieve frame mode");

    decoderState = DecoderState::RetrieveFrames;
    currentOutputBuffer.clear();
    return true;
  }
  else if (res != -EAGAIN)
    return setErrorB("Error retrieving frame from decoder.");

  if (decoderState != DecoderState::NeedsMoreData)
    DEBUG_DAV1D("decoderDav1d::decodeFrame No frame available - switching back to data push mode");
  decoderState = DecoderState::NeedsMoreData;
  return false;
}

QByteArray decoderDav1d::getRawFrameData()
{