[FFmpeg-user] Concatenated H.264 or H.265 might not play correctly.drop=#

Nicolas George george at nsup.org
Thu Jul 24 09:51:16 CEST 2014

Le quintidi 5 thermidor, an CCXXII, Luke Davis a écrit :
> Any idea _why_ they might be dropped?

The "drop=" statistics corresponds to frames that were dropped to
accommodate the output frame rate. With the segment muxer, ffmpeg
automatically selects CFR mode, and with your video, it guesses 14.99 as the
frame rate. If your input actually has more frames than that, they are

Remember that each frame has a timestamp. I urge you to compare your input
and output, match the images together and see what happens to the


  Nicolas George
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