[FFmpeg-trac] #3457(avformat:closed): HEVC encoding (to mkv) broken since Mar 9 in ffmpeg

FFmpeg trac at avcodec.org
Thu Mar 13 11:51:32 CET 2014

#3457: HEVC encoding (to mkv) broken since Mar 9 in ffmpeg
             Reporter:               |                    Owner:
  johnthescavenger                   |                   Status:  closed
                 Type:  defect       |                Component:  avformat
             Priority:  normal       |               Resolution:  invalid
              Version:  git-master   |               Blocked By:
             Keywords:  h265 mov     |  Reproduced by developer:  0
  mkv                                |
             Blocking:               |
Analyzed by developer:  0            |

Comment (by johnthescavenger):

 I think you must have misunderstood my words.

 So, it used to be that a command like "ffmpeg -i <video> -vcodec hevc
 out.mkv" would cause ffmpeg to do a lot of CPU work and produce a good-
 size MKV file containing HEVC video.

 Now, that same command, "ffmpeg -i <video> -vcodec hevc out.mkv" causes
 ffmpeg to die on startup with that error message, having done negligible
 CPU work, and produce an MKV file of size 0.

 VLC could play the files produced in the first case, but I don't see why
 this makes it a "VLC problem".  Actually, for that matter, ffmpeg could
 parse them too--I just tested it, it can reencode the HEVC back to mpeg4.
 And ffplay can play them.  So, no, I'm pretty sure I can say that this
 isn't a VLC problem.

Ticket URL: <https://trac.ffmpeg.org/ticket/3457#comment:6>
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