Method copyImgToByteArray

YUViewLib/src/decoder/decoderVVDec.cpp:485–534

}

void decoderVVDec::copyImgToByteArray(QByteArray &dst)
{
  auto fmt = this->currentFrame->colorFormat;
  if (fmt == VVDEC_CF_INVALID)
  {
    DEBUG_vvdec("decoderVVDec::copyImgToByteArray picture format is unknown");
    return;
  }
  const auto nrPlanes       = this->currentFrame->numPlanes;
  const auto bytesPerSample = this->currentFrame->bitDepth > 8 ? 2 : 1;
  const auto lumaSize       = Size({this->currentFrame->width, this->currentFrame->height});
  const auto chromaSize     = calculateChromaSize(lumaSize, fmt);

  auto outSizeLumaBytes   = lumaSize.width * lumaSize.height * bytesPerSample;
  auto outSizeChromaBytes = chromaSize.width * chromaSize.height * bytesPerSample;
  // How many bytes do we need in the output buffer?
  auto nrBytesOutput = (outSizeLumaBytes + outSizeChromaBytes * 2);
  DEBUG_vvdec("decoderVVDec::copyImgToByteArray nrBytesOutput %d", nrBytesOutput);

  // Is the output big enough?
  if (dst.capacity() < int(nrBytesOutput))
    dst.resize(int(nrBytesOutput));

  for (unsigned c = 0; c < nrPlanes; c++)
  {
    auto &component = this->currentFrame->planes[c];

    auto widthBytes = component.width * bytesPerSample;
    auto plane      = component.ptr;

    if (component.ptr == nullptr)
    {
      DEBUG_vvdec("decoderVVDec::copyImgToByteArray unable to get plane for component %d", c);
      return;
    }

    unsigned char *restrict d = (unsigned char *)dst.data();
    if (c > 0)
      d += outSizeLumaBytes;
    if (c == 2)
      d += outSizeChromaBytes;

    for (unsigned y = 0; y < component.height; y++)
    {
      std::memcpy(d, plane, widthBytes);
      plane += component.stride;
      d += widthBytes;
    }
  }
}

QString decoderVVDec::getDecoderName() const
{