Robuta

https://ffmpeg.org/doxygen/2.8/gradfun_8h.html FFmpeg: libavfilter/gradfun.h File Reference h file ffmpeg reference https://ffmpeg.org/doxygen/4.1/gradfun_8h_source.html FFmpeg: libavfilter/gradfun.h Source File ffmpeg h source file https://ffmpeg.org/doxygen/4.1/vf__gradfun_8c_source.html FFmpeg: libavfilter/vf_gradfun.c Source File ffmpeg vf c file