[FFmpeg-trac] #2325(undetermined:new): MP4 AAC Audio is delayed by 2ms when converted to PCM
FFmpeg
trac at avcodec.org
Tue Mar 5 03:07:14 CET 2013
#2325: MP4 AAC Audio is delayed by 2ms when converted to PCM
-------------------------------------+-------------------------------------
Reporter: brchapman | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: aac, mp4, | Blocked By:
pcm | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
When using ffmpeg to convert an aac audio stream from an mp4 to pcm, the
result is out of sync by about 2ms. By adding -ss 00:00:00.02 after the
input, then output is correctly aligned.
How to reproduce:
{{{
% ffmpeg -i test100.mp4 -c:a pcm_s16le test100_audio.wav
ffmpeg version 1.1.git
git revision: faa0068
built on Mar 4 2013 11:40:27
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2325>
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