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

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Oct 17 21:24:39 EEST 2018

2018-10-03 21:01 GMT+02:00, Dmitry Menshikov <d.menshikov at gmail.com>:

> 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.

This is a good idea if you know that the frames are really identical
(and not just very similar), see the framecrc output format.

Carl Eugen

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