Function IsStaticComposition

exporter/src/utils/AEHelper.cpp:638–691

}

bool IsStaticComposition(const AEGP_CompH& compositionHandle) {
  bool isStatic = true;
  AEGP_ItemH itemHandle = GetCompItemH(compositionHandle);
  pag::Frame totalFrames = GetItemDuration(itemHandle);
  if (totalFrames <= 1) {
    return isStatic;
  }

  AEGP_RenderOptionsH renderOptions = nullptr;
  float frameRate = GetItemFrameRate(itemHandle);

  Suites->RenderOptionsSuite3()->AEGP_NewFromItem(PluginID, itemHandle, &renderOptions);
  if (renderOptions == nullptr) {
    return isStatic;
  }

  uint8_t* curData = nullptr;
  uint8_t* preData = nullptr;
  pag::Frame step = 1;
  while (true) {
    pag::Frame value = totalFrames / step;
    if (value < 100) {
      break;
    }
    step *= 10;
  }
  for (pag::Frame frame = 0; frame < totalFrames; frame += step) {
    SetRenderTime(renderOptions, frameRate, frame);
    A_long width = 0;
    A_long height = 0;
    A_u_long stride = 0;
    GetRenderFrameSize(renderOptions, stride, width, height);
    if (curData == nullptr) {
      curData = new uint8_t[stride * height];
    }
    GetRenderFrame(curData, stride, stride, width, height, renderOptions);
    if (curData != nullptr && preData != nullptr &&
        !exporter::ImageIsStatic(curData, preData, width, height, stride)) {
      isStatic = false;
      break;
    }
    std::swap(curData, preData);
  }

  if (curData != nullptr) {
    delete[] curData;
  }
  if (preData != nullptr) {
    delete[] preData;
  }
  Suites->RenderOptionsSuite3()->AEGP_Dispose(renderOptions);

  return isStatic;
}

std::string GetStreamMatchName(const AEGP_StreamRefH& streamHandle) {
  char matchName[200] = {0};