[FFmpeg-user] Why Does ffprobe Report an Incorrect Number of Frames?

Andy Furniss adf.lists at gmail.com
Thu May 8 13:10:37 CEST 2014

John G wrote:

> For my applications, it would be Ok, as the file sizes are generally
> 150MB or less...  but trying this command on the sample (~7MB) .avi
> file seems to have the same problem as before in that the frame count
> is still incorrect:-
> c:\> ffprobe -select_streams v -count_frames -show_entries
> stream=nb_read_frames sample.avi

> [STREAM] nb_read_frames=1619 [/STREAM]
> ...which is not the 6999 or so.

Well looking at your sample it's not really 200 fps in the sense that
playing it with say mplayer will output 6999, but frame stepping will
show that the frames are often the same, so it's fake 200 fps and I
assume ffprobe is counting "real" frames.

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