AVERROR           282 3rdparty/include/ffmpeg_/libavutil/mem.h         return AVERROR(EINVAL);
AVERROR           673 3rdparty/include/ffmpeg_/libavutil/opt.h      AVERROR(EINVAL) : \
AVERROR           682 modules/videoio/src/cap_ffmpeg_impl.hpp         if (ret == AVERROR(EAGAIN)) continue;
AVERROR          2374 modules/videoio/src/cap_ffmpeg_impl.hpp         if (ret == AVERROR(EAGAIN))