[FFmpeg-trac] #4690(undetermined:new): Windows - Transcoding raw video to mjpeg+matroska: CPU usage increases over time

FFmpeg trac at avcodec.org
Tue Jun 30 13:12:38 CEST 2015


#4690: Windows - Transcoding raw video to mjpeg+matroska: CPU usage increases over
time
-------------------------------------+-------------------------------------
             Reporter:               |                     Type:  defect
  MariusSchipper                     |                 Priority:  normal
               Status:  new          |                  Version:
            Component:               |  unspecified
  undetermined                       |               Blocked By:
             Keywords:  mjpeg        |  Reproduced by developer:  0
  matroska CPU                       |
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 When transcoding from raw video to mjpeg encapsulated in matroska on
 Windows 7 64bit OS, then CPU usage increases over time. After 12 hours,
 approx. 2-4 times more CPU time is necessary to get the same amount of
 work done.

 How to reproduce:
 {{{
 ffmpeg -f lavfi -i testsrc=size=720x576:rate=50 -pix_fmt yuv420p -vcodec
 mjpeg -s 360x288 -qscale:v 5 -f matroska - | ffplay -i -

 ffmpeg version: Static from 30-06-2015 via Zeranoe.com
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/4690>
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