[FFmpeg-trac] #2656(undetermined:new): Extracting only keyframes is very slow

FFmpeg trac at avcodec.org
Mon Jun 10 08:00:06 CEST 2013


#2656: Extracting only keyframes is very slow
-------------------------------------+-------------------------------------
             Reporter:  konstantin   |                     Type:
               Status:  new          |  enhancement
            Component:               |                 Priority:  minor
  undetermined                       |                  Version:
             Keywords:  slow,        |  unspecified
  keyframe, extraction               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug: extracting only the keyframes is a very slow process,
 should be much faster
 How to reproduce: ffmpeg -i videofile.avi  -vf
 select='eq(pict_type\,I),setpts=N/(25*TB)' -q 1  %09d.bmp
 {{{
 % ffmpeg -i input ... output
 ffmpeg version
 built on ...
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2656>
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