0002819: Render file with AC-3 codec to XVid or MPEG-4 causes audio out of sync with video

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Category

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Date Submitted

Last Update

0002819

Kdenlive

Rendering

public

2012-11-07 23:31

2012-11-09 14:15

Reporter

walxo

Assigned To

Priority

normal

Severity

major

Reproducibility

always

Status

new

Resolution

open

Platform

i386

linux

OS Version

kubuntu 12.10

Product Version

0.9.2

Target Version

Fixed in Version

Summary

0002819: Render file with AC-3 codec to XVid or MPEG-4 causes audio out of sync with video

Description

Just render file with AC-3 codec to DivX or MPEG-4. The result is audio out of sync with video.

Kdenlive 0.9.2, Mlt 0.8 (and 0.8.2)

and older
Kdenlive 0.8.2.1, Mlt 0.7.7

Steps To Reproduce

The test file in http://www.kdenlive.org/mantis/view.php?id=2772 [^]

Render to XVid or MPEG-4.
Result is audio out of sync with video. The desynchronization increases in time...

For inst.: The car's door is closed in 0:46. The sound will be heard few seconds later.

Render to H.264 is OK.

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Notes
(0008591) walxo (reporter) 2012-11-09 14:15	Found the problem :) Replace the original XVid4 render profile: acodec=libmp3lame ab=%audiobitrate+'k' ar=44100 vcodec=libxvid minrate=0 vb=%bitrate+'k' aspect=%dar mbd=2 trellis=1 mv4=1 pass=%passes With: f=avi hq=1 acodec=aac ab=%audiobitrate+'k' ar=48000 pix_fmt=yuv420p vcodec=libxvid minrate=0 vb=%bitrate+'k' g=250 bf=3 b_strategy=1 subcmp=2 cmp=2 coder=1 flags=+loop flags2=dct8x8 qmax=51 subq=7 qmin=10 qcomp=0.6 qdiff=4 trellis=1 aspect=%dar pass=%passes

Issue History
Date Modified	Username	Field	Change
2012-11-07 23:31	walxo	New Issue
2012-11-09 14:15	walxo	Note Added: 0008591