AVFMT_DURATION_FROM_PTS  629 libavformat/nutdec.c         s->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
AVFMT_DURATION_FROM_PTS  665 libavformat/nutdec.c     s->duration_estimation_method = AVFMT_DURATION_FROM_PTS;
AVFMT_DURATION_FROM_PTS 2529 libavformat/utils.c         ic->duration_estimation_method = AVFMT_DURATION_FROM_PTS;