message: videoio: fix ffmpeg wrapper build
diff: @@ -1082,7 +1082,11 @@ bool CvCapture_FFMPEG::processRawPacket()
  const AVBitStreamFilter * bsf = av_bsf_get_by_name(filterName);
  if (!bsf)
  {
  +#ifdef __OPENCV_BUILD
  CV_WARN(cv::format("Bitstream filter is not available: %s", filterName).c_str());
  +#else
  + CV_WARN("Bitstream filter is not available");
  +#endif
  return false;
  }
  int err = av_bsf_alloc(bsf, &bsfc);
  @@ -1102,7 +1106,11 @@ bool CvCapture_FFMPEG::processRawPacket()
  bsfc = av_bitstream_filter_init(filterName);
  if (!bsfc)
  {
  +#ifdef __OPENCV_BUILD
  CV_WARN(cv::format("Bitstream filter is not available: %s", filterName).c_str());
  +#else
  + CV_WARN("Bitstream filter is not available");
  +#endif
  return false;
  }
  #endif
  