Opened 11 years ago

Closed 11 years ago

#2171 closed defect (worksforme)

Broken AAC Audio in Lumia 920 Videos

Reported by: Iwan Gabovitch Owned by:
Priority: normal Component: DOCS
Version: unspecified Severity: normal
Keywords: audio, nokia, lumia, 920, aac Cc:
Blocked By: Blocking:
Reproduced by developer: no Analyzed by developer: no

Description

Videos recorded with Nokia Lumia 920 (Windows Phone 8) play back with a delay and without sound.

Command line output attached. Download a test video from https://app.box.com/s/r11d34h5xo7dwusjksy4

kdenlive is also affected, VLC is not.

Reproduced on MPlayer SVN-r36498-snapshot-4.8.2 on Arch Linux 64bit and 32bit. Reporting from 64bit.

Videos recorded with Lumia 820 seem to be affected in the same way. I suspect this might be a regression, but I can't remember whether or not these files played back successfuly months ago or not.

Attachments (1)

lumia920videoproblemsmplayer.txt (10.8 KB ) - added by Iwan Gabovitch 11 years ago.
mplayer output when playing back lumia 920 made video

Download all attachments as: .zip

Change History (2)

by Iwan Gabovitch, 11 years ago

mplayer output when playing back lumia 920 made video

comment:1 by reimar, 11 years ago

Resolution: worksforme
Status: newclosed

I can't reproduce, the file plays fine for me with latest SVN MPlayer (r36558) and latest FFmpeg.
It seems to me the FFmpeg copy you built against is quite outdated:

libavcodec version 55.39.100 (internal)

I have:

libavcodec version 55.46.100 (internal)

While it looks like it _should_ be newer, on Nov. 4th there was this fix to FFmpeg which sounds related:

commit 019247bdc326a90bf20d3ce5d2413cc642e8bb08
Author: Hendrik Leppkes
Date: Mon Nov 4 16:22:27 2013 +0100

avformat/mov: only force parsing for video tracks if stss is empty


Fixes playback of some AAC streams, which are otherwise mangled by the
parser, and stss is typically only valid for video anyway.

Please reopen if you can still reproduce after making sure you have a version newer than this at least (preferably absolutely latest of both MPlayer and FFmpeg).

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