[FFmpeg-user] Calculation of duplicated video frames in live stream

Dmitry Menshikov d.menshikov at gmail.com
Wed Oct 3 22:01:55 EEST 2018


I'm trying to detect duplication of video frames in live streams. Such
situation occurs when encoder can't encode stream at specified fps. I see
few frames with the same pkt_size. I know that there is filter to detect
similar frames but such technique looks like overkill.

The simplest solution I see is to compare crc of frames.

Is my idea right? Have ffprobe such option? Thank you very much!

P.S. Command I currently use: ffprobe -hide_banner -v error -show_frames
-show_entries frame=media_type,key_frame,pkt_pts_time -i rtmp://host/path

Yours truly, Dmitry Menshikov

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