FS#36430 - [avidemux][ffmpeg][x264]Audio/video sync problems when upgrading from 2.5.6-6 to 2.5.6-7

Attached to Project: Arch Linux
Opened by Dirk (dsohler) - Tuesday, 06 August 2013, 09:37 GMT
Last edited by Dave Reisner (falconindy) - Thursday, 03 October 2013, 13:45 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Eric Belanger (Snowman)
Ionut Biru (wonder)
Bartłomiej Piotrowski (Barthalion)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 2
Private No

Details

Description:

I just ran a -Syu a few days ago and during this Avidemux got upgraded from 2.5.6-6 to 2.5.6-7 which worked without any errors.

Today I wanted to cut out unwanted sections from a television recording (done by mplayer, see attachment for mplayer -identify for that file) and loaded the file. When checking in Avidemux I played the file. The video was played correctly, but the audio was played from 00:00:00.000 and not from video position.

This is reproducible for all recorded files: Audio gets played from the beginning, and video gets played from the selected position resulting in HEAVY audio/video sync issues (no, this has nothing to do with selecting only copy in the left sidebar of Avidemux. This happens with all codecs and even in the preview within Avidemux and setting an audio shift does not solve the problem).

It seems like audio is left completely untouched, not even set to the selected position and always plays from the beginning. This also affects rendering the file making Avidemux useless.

Because file limit here is too low, I put a random example recording on my server. See https://0x7be.de/~dirk/test.mpg


Additional info:

* producible by switching between 2.5.6-6 and 2.5.6-7
* Avidemux config untouched, see attached files


Steps to reproduce:

* Upgrade to Avidemux 2.5.6-7
* Edit the file as described above and see the results
* Downgrade to Avidemux 2.5.6-6
* Edit the file as described above: all fine again
   mplayer-identify (2.6 KiB)
   avidemux-config (3.6 KiB)
This task depends upon

Closed by  Dave Reisner (falconindy)
Thursday, 03 October 2013, 13:45 GMT
Reason for closing:  Duplicate
Additional comments about closing:   FS#36407 
Comment by Eric Belanger (Snowman) - Tuesday, 06 August 2013, 18:15 GMT
Probably a ffmpeg/x264 bug as 2.5.6-7 is the same as the old version except it's built against the newer ffmpeg/x264.
Comment by Bartłomiej Piotrowski (Barthalion) - Tuesday, 13 August 2013, 07:04 GMT
Could you report your problem to upstream? It may need quite a bit patching and I'm not familiar with avidemux internals to do it on my own.
Comment by Martin Sand (sandstorm) - Wednesday, 21 August 2013, 21:00 GMT
I got the same problem since the update. I made a search on Google but I could find other reports on the same issue on the net.

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