[FFmpeg-trac] #4946(undetermined:new): Buffer queue overflow issue with dynaudnorm filter + overlay filter

FFmpeg trac at avcodec.org
Mon Oct 19 18:55:04 CEST 2015

#4946: Buffer queue overflow issue with dynaudnorm filter + overlay filter
             Reporter:  acloutier    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  dynaudnorm   |               Blocked By:
  overlay buffer queue overflow      |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
 Video freezes during playback and we get an error: Buffer queue overflow,
 dropping. Removing either the overlay filter or the dynaudnorm filter
 makes the issue go away.

 Summary of the bug:
 How to reproduce:
 % ffmpeg -report -y -i dynaudnormOverlayIssueInput.mp4 -i
 dynaudnormOverlayIssueImage.png -filter_complex "[0:v]
 yadif,scale=1920:1080,setsar=1 [deint]; [deint] [1:v]
 overlay=x=-0:y=0:repeatlast=1,scale=-1:576[video]; [0:a] dynaudnorm=b=1
 [audio]" -map "[video]" -map "[audio]" -vcodec libx264 -pix_fmt yuv420p
 -acodec libfaac -threads 0 dynaudnormOverlayIssueOutput.mp4
 ffmpeg version n2.8.1-7-ge0e28da Copyright (c) 2000-2015 the FFmpeg
   built with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)

 full log:
 input mp4:
 input png for overlay:
 output mp4 :

Ticket URL: <https://trac.ffmpeg.org/ticket/4946>
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