[FFmpeg-trac] #6699(avformat:new): MP4 with HEVC keyint=2 not decoded properly due to edit list (first frames are missing)

FFmpeg trac at avcodec.org
Tue Sep 26 18:36:00 EEST 2017


#6699: MP4 with HEVC keyint=2 not decoded properly due to edit list (first frames
are missing)
-------------------------------------+-------------------------------------
             Reporter:  tospi        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov hevc     |               Blocked By:
  edts                               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by tospi):

 Replying to [comment:2 cehoyos]:
 > Replying to [ticket:6699 tospi]:
 > > In earlier versions of FFmpeg (e.g. FFmpeg 2.8.11), decoding of the
 same file works without problems.
 > The file you attached works significantly better here with current
 FFmpeg git head than 2.8.
 Well yes, the used "testsrc" apparently produced gbrp pixel format output,
 so the HEVC test file also used this format which was not supported in
 this old FFmpeg version. Therefore is was not a good sample, sorry.

 I created a new sample with the testsrc2 source which uses YUV420.
 {{{
 ./ffmpeg -f lavfi -i testsrc2=duration=1 -b:v 1000k -c:v libx265
 -x265-params keyint=2 hevc_keyint2_testsrc2.mp4
 }}}
 This file works in the old FFmpeg 2.8.11, but still not in the current
 version.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6699#comment:3>
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