[FFmpeg-trac] #4522(ffmpeg:new): Video data difference when HEVC Raw bit stream to mp4 with vcodec copy option

[FFmpeg]

#4522: Video data difference when HEVC Raw bit stream to mp4 with vcodec copy
option
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             Reporter:  kgp700      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by heleppkes):

 RAW HEVC streams are in AnnexB format, ie. every NALU starts with a
 0x00000001 start code.
 HEVC in MP4 uses a different syntax, where instead of the startcode, a
 4-byte size field is used.

 The difference you are seeing is therefor perfectly normal.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4522#comment:2>
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