[FFmpeg-trac] #6292(avfilter:new): overlay filter shortest doesn't work and ffmpeg hangs if 2nd input is longer

FFmpeg trac at avcodec.org
Tue Apr 11 12:54:27 EEST 2017


#6292: overlay filter shortest doesn't work and ffmpeg hangs if 2nd input is
longer
-------------------------------------+-------------------------------------
             Reporter:  Gyan         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  overlay      |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Gyan):

 **shortest=1** exhibits the same behaviour with the **haldclut**,
 **hstack** and **vstack** filters. The **blend** filter shows the same bug
 if the first input (the A or top video) is the shorter stream. If the 2nd
 input is shorter, ffmpeg displays "Error while filtering" but otherwise
 exits normally.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6292#comment:4>
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