[FFmpeg-user] syncing live streams when mosaicing

Daniel Oberhoff daniel at danieloberhoff.de
Wed Feb 6 11:20:26 CET 2013


On 2013-02-06 10:01:19 +0000, Carl Eugen Hoyos <cehoyos at ag.or.at> said:

> Daniel Oberhoff <daniel <at> danieloberhoff.de> writes:
> 
>> now we know the streams are time stamped correctly
>> using the pts (in an h264 stream). can ffmpeg
>> somehow use the pts to avoid the shift?
> 
> Could you try to verify if FFmpeg's H264
> decoder actually correctly decodes the pts?
> 
> Carl Eugen

Ok, so I just ran a few filters with setpts 
(https://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20speed%20up%20/%20slow%20down%20a%20video), 
and ffmpeg did not complain, so I guess that proves there is a valid 
PTS?

Daniel




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