[FFmpeg-devel] [PATCH] doc/examples/filtering_video: fix frame rate

[Piotr Fusik]

Hello,

I'm new to ffmpeg. I've started learning it by playing with the 
filtering_video example.

I've noticed that for some mp4 files it plays with an incorrect frame rate:
for some files it's twice too fast and for other files the delays are 
completely skipped
because the calculated delay values are too large.
I can provide sample movies if needed.

I managed to correct the frame rate by setting time_base the way
the other example, filtering_audio, does it. Please review my patch.

Thank you,
Piotr
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