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Ffmpeg concat audio out of sync
Ffmpeg concat audio out of sync






ffmpeg concat audio out of sync

output/1080set.Okay, I have a question to Paul/Elon. buffer/$-1080.mp4įfmpeg -f concat -safe 0 -i 1080list.txt -t $TOTDUR -c copy. Videos that i use for test is the concatenation (ffmpeg concat demux) of many videos prevoiusly encoded with closed gop, unfortunately I still can not get a timestamp without any discrepancies between one video and anotherįfmpeg -y -i "$f" -i. It would seem that -bound has no effect while someone is watching?! MP4Box -dash-live 8000 -subdur 8000 -bound -profile dashavc264:live -mpd-refresh 3600.0 -time-shift 24 -min-buffer 4000 -insert-utc -no-cache -out manifest.mpd 1080set.mp4#video 720set.mp4#video 360set.mp4#video 1080set.mp4#audio 720set.mp4#audio 360set.mp4#audioĪpart from the additional information, I think there is a small difference in duration between audio and video that grow with the increase of repetitions, it is not reported by MP4Box, after some repetitions it becomes audible, reloading the page brings the streaming back synchronized. The test was performed with video.js contrib dash.

ffmpeg concat audio out of sync

There are no errors from mp4box or on chrome console. The problem is only visible after the repetition of several loops. If I reload the page the audio will be back synchronized. The problem starts to occur only when the loop begins repetitions:įor example if I watch a video of 20 minutes, audio and video are synchronized, when the video repeats its self as desired with -dash-live the delay between audio and video begins to grow, which will become evident after 3, 4 repetitions. I can notice a problem of audio / video synchronization that occurs only after some loops of the video in input:

ffmpeg concat audio out of sync ffmpeg concat audio out of sync

Hi there, testing the latest version with the addition -bound with -dash-live








Ffmpeg concat audio out of sync