[FFmpeg-trac] #3409(undetermined:closed): Impossible to transcode full range RGB videos with libx264, and keep full range + proper colors

FFmpeg trac at avcodec.org
Sat Jan 15 14:04:13 EET 2022


#3409: Impossible to transcode full range RGB videos with libx264, and keep full
range + proper colors
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             Reporter:  mzso         |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 >It's not really obvious, and tbh I'd really be curious to know wherever
 in the source code this would even happen.

 This is false. FFmpeg always default to 601 even for HD.

 >Nobody mentioned ffplay anywhere in the thread.

 They are using it for testing, since it is part of ffmpeg.

 >the pity to put some warning here or there.

 I did fix some of it (240M matrix, for example). But yeah. That would be
 nice.
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Ticket URL: <https://trac.ffmpeg.org/ticket/3409#comment:24>
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