Hi, PTS/DTS values are not affected by the ProRes encoder at all. They are created in the MOV wrapper during the write_interleaved()
Debug that bit to work out how it is making the DTS/PTS longer for the last one. E PS: Love your TO name for the mailing list. _______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user