Play mov 29.97 to 25 with Decklink board

Questions involving a Windows version of FFmpeg.
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barabba2005
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Joined: Thu Jun 05, 2014 11:47 am

Play mov 29.97 to 25 with Decklink board

Post by barabba2005 » Thu Aug 03, 2017 9:38 am

HI
I'm trying to play a .mov file with 29.978 FPS to 25 FPS with this script:

ffmpeg -r 25 -i 816.mov -pix_fmt uyvy422 -r 25 -vf scale=1920x1080 -c:a pcm_s16le -ar 48000 -ac 2 -filter:a "atempo=0.81" -f decklink "DeckLink Studio 2"

Play start correctly but after some minutes give me an error:
[decklink @ 000000000298d400] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly

[decklink @ 000000000298d400] Encoder did not produce proper pts, making some up.

[decklink @ 000000000298d400] There are not enough buffered video frames. Video may misbehave!


what is the problem?
Thanks

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