[FFmpeg-trac] #11217(ffmpeg:new): Output "-ss" memory consumption regression

FFmpeg trac at avcodec.org
Tue Oct 22 22:02:22 EEST 2024


#11217: Output "-ss" memory consumption regression
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             Reporter:  Bryce        |                    Owner:  (none)
  Chester Newman                     |
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  ffmpeg
              Version:  7.1          |               Resolution:
             Keywords:  seek         |               Blocked By:
  seeking                            |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Bryce Chester Newman):

 I appreciate the workaround Gyan, but let's say that -ss is 3 seconds and
 the video was 30 minutes in duration, wouldn't ffmpeg try to read the rest
 of the remainder of the file? This is also seems like it would not be a
 good option for other workflows we have that stream the file.

 As for using "select='gte( t, 67 )'", what is "less efficient", cpu usage,
 memory, time, etc? Also, what are the cases that select would be less
 precise?

 Is using the -ss arg something that is planned to be fixed? I can wait for
 an upgrade to 7.x if -ss's usage is fixed.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11217#comment:8>
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