[FFmpeg-trac] #2325(undetermined:new): MP4 AAC Audio is delayed by 2ms when converted to PCM

FFmpeg trac at avcodec.org
Wed Mar 6 23:48:40 CET 2013


#2325: MP4 AAC Audio is delayed by 2ms when converted to PCM
-------------------------------------+-------------------------------------
             Reporter:  brchapman    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  aac mov      |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Replying to [comment:13 brchapman]:
 > > At what frames are the gongs supposed to play? Ie, which numbers
 should be shown on screen at the time each gong starts?
 > Gongs start on 0, 41, 84, 116, 167, 207, 246, 285

 This is exactly what I see here with different players, both with the
 original and a sample re-encoded by FFmpeg, if FFmpeg would cut the first
 0.02 seconds of audio, this would get wrong or do I miss something?

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2325#comment:14>
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