[FFmpeg-trac] #6592(undetermined:new): DNxHD error during encoding: too many threads

FFmpeg trac at avcodec.org
Wed Aug 16 23:01:04 EEST 2017


#6592: DNxHD error during encoding: too many threads
-------------------------------------+-------------------------------------
             Reporter:  ralambda     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  DNxHD, too   |               Resolution:
  many threads                       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by ralambda):

 It works if `-threads` less than or equal to '''32''' on the 20 core
 system It fails if `-threads` is greater than '''32'''.

 It's the same error when it fails when the -threads option is added:
 `[dnxhd @ 0x319ec80] too many threads`

 '''Works:'''
 {{{
 /ffmpeg -v 9 -loglevel 99 -y -r 23.976 -i input_file.mp4 -threads 32 -c:v
 dnxhd -b:v 36M -pix_fmt:v yuv422p -s:v 1920x1080 -an output_file.mxf
 }}}

 '''Fails:'''
 {{{
 /ffmpeg -v 9 -loglevel 99 -y -r 23.976 -i input_file.mp4 -threads 33 -c:v
 dnxhd -b:v 36M -pix_fmt:v yuv422p -s:v 1920x1080 -an output_file.mxf
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6592#comment:5>
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