[FFmpeg-trac] #5688(avcodec:new): Support hevc NAL units 62 and 63

FFmpeg trac at avcodec.org
Sat Jul 2 14:45:45 CEST 2016

#5688: Support hevc NAL units 62 and 63
             Reporter:  cehoyos      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  hevc         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by heleppkes):

 The dolby vision enhancement layer doesn't actually use NAL units 63 and
 62, it uses a special syntax that uses 0x7E01 and 0x7C01 as separator that
 makes the Dolby Extension Layer (EL) appear as unspecified/unused NAL
 units (62 and 63), but the actual NAL information starts after that extra

 A more fitting description would be support for the Dolby Vision
 Enhancement Layer.

Ticket URL: <https://trac.ffmpeg.org/ticket/5688#comment:2>
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