[FFmpeg-user] DVB H264 chunk transcoding => merging in MP4 => out of sync

[ffmpeg at me.com]

Eugen,
you have any idea how to solve the Quicktime issue? 
Best, Andreas


> Am 29.03.2017 um 12:30 schrieb ffmpeg at me.com:
> 
> Eugen,
> we tested also under Chrome (v57, MacOS), Chrome Android (current Version) and Windows 10 with the new media player. We did not recognize the sync problems with the test-movie. 
> 
> Conclusion: problems just under iOS and Quicktime (MacOS, Windows version of Quicktime probably too).
> 
> Best, Andreas
> 
> 
> 
>> Am 25.03.2017 um 14:39 schrieb ffmpeg at me.com <mailto:ffmpeg at me.com>:
>> 
>> Confirmed: video still fails in Quicktime. WMP under Win 8.1 looks after quick test fine. Test under Win 10 will be done soon. 
>> Tested on iOS (current 10.2, iPhone 6s) the same video. Also here the same delay is visible (playback on iOS is based generally on Quicktime). 
>> 
>> Demo is attached (screen-record, audio source speakers of the system - not perfect but does the trick for test):
>> www.keepinmind.info/download/error.mov <http://www.keepinmind.info/download/error.mov> <http://www.keepinmind.info/download/error.mov <http://www.keepinmind.info/download/error.mov>> 
>> 
>> Andreas
>> 
>> 
>>> Am 24.03.2017 um 20:48 schrieb Carl Eugen Hoyos <ceffmpeg at gmail.com>:
>>> 
>>> 2017-03-15 13:03 GMT+01:00  <ffmpeg at me.com>:
>>> 
>>>> ffmpeg -f concat -safe 0 -i files.txt -y -metadata creation_time=now -c:v copy -c:a copy
>>>> -fflags +genpts -movflags faststart -use_editlist 0 -f mp4 tvexport.mp4
>>> 
>>> I have removed the absolute paths from files.txt (you do agree they make
>>> testing impossible?) and have tested the following command line:
>>> $ ffmpeg -f concat -i files.txt -c copy out.mp4
>>> (The other options you use seem superfluous or make little sense)
>>> The output file plays fine with MPlayer, vlc and ffplay (three different
>>> demuxers). Are you able to test with WMP?
>>> Can you confirm that this file still fails with QT?
>>> 
>>> Carl Eugen
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>> 
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