[FFmpeg-trac] #7273(ffmpeg:new): Exported AAC does not work properly
FFmpeg
trac at avcodec.org
Sat Jun 23 18:56:40 EEST 2018
#7273: Exported AAC does not work properly
---------------------------------+---------------------------------------
Reporter: DriverX | Type: defect
Status: new | Priority: important
Component: ffmpeg | Version: unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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How to reproduce:
{{{
% ffmpeg -i in.flac -acodec aac -b:a 384k out.aac
ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 8.1.1 (GCC) 20180531
}}}
If I open 'out.aac' from the beginning (0 seconds), everythings works fine
and I can jump at any position with no problem.
But if the player try to start to reproduce it from the middle of the file
(2 or 3 minutes) the player hangs and it do not reproduce the file.
I have tested this behavior with smplayer (with mpv) and also with kodi.
If the AAC file is embedded in an mkv with multiple audio tracks I can't
switch from an audio track to another one, unless I move back to the start
of the file.
Also, the exported file has a wrong channel layout,
if the original file was:
{{{Channel positions: Front: L C R, Side: L R, LFE}}}
the exported one is:
{{{Channel positions: Front: L C R, Side: C, Back: L R}}}
I don't know if this 2 problems are related but it's the only difference
that i noticed.
With ffmpeg 3.4.2 everythings works fine, instead with ffmpeg 4.0.1 I have
this issue.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7273>
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