[FFmpeg-user] audio video out of sync

[Carl Eugen Hoyos]

2019-01-26 6:02 GMT+01:00, Matthew Reus <matthew.reus01 at gmail.com>:

> I m taking a raw video from a box using* HDMI TO SDI* convert using
> *Decklink
> quad 2 *card , the stream will work fine for an hour . But after an hour
> the audio video goes oout of sync .
>
> ffmpeg -async 1 -vsync 1 -f decklink -i 'DeckLink Quad (3)@11' -pix_fmt
> yuv420p -r 30 -s 1920x1080 -vf "yadif=0:-1:0" -c:v h264_nvenc -gpu 0 -b:v
> 4000k -c:a aac -filter:a "volume=4" -aspect 16:9 -ac 2 -f flv
> rtmp://admin:netaccess@192.168.0.44:1935/nettv/SABHD.stream

Is there only an issue with rtmp output or also with file output?
For your next test, please remove the following options to ease
debugging:
volume, aspect, ac, s, vsync, yadif

Please test current FFmpeg git head, Carl Eugen