[FFmpeg-trac] #7163(avcodec:reopened): 12-bit ProRes not supported

FFmpeg trac at avcodec.org
Wed Nov 14 02:37:34 EET 2018

#7163: 12-bit ProRes not supported
             Reporter:               |                    Owner:
  spookybathtub                      |                   Status:  reopened
                 Type:  enhancement  |                Component:  avcodec
             Priority:  wish         |               Resolution:
              Version:  unspecified  |               Blocked By:
             Keywords:  prores       |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |

Comment (by spookybathtub):

 Thanks for your work on this.  Since there is no way to identify Prores
 bit depth by reading a metadata flag, I suggest to always decode Prores
 444 as 12-bit by default, unless the user chooses 10-bit with a command-
 line flag to improve speed.  Prores 422 can remain as 10-bit.
 Keep in mind the alpha channel should be 16 bits.  Although I have
 personally never seen a Prores file with alpha.

Ticket URL: <https://trac.ffmpeg.org/ticket/7163#comment:8>
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