[FFmpeg-trac] #1954(swscale:new): swscale: please support planar RGB (GBRP) output

[FFmpeg]

#1954: swscale: please support planar RGB (GBRP) output
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             Reporter:  gjdfgh   |                     Type:  enhancement
               Status:  new      |                 Priority:  normal
            Component:  swscale  |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
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 Planar RGB is surprisingly useful for algorithms that can work on both RGB
 and YUV colorspaces. (Especially if you want a cheap way to add RGB
 support to YUV code.) For these uses, it's really impractical that you
 can't use libswscale to convert input image data to GBRP.

 Conversion to planar RGB should work with any input pixel format, and at
 least sws_isSupportedOutput(AV_PIX_FMT_GBRP) should return true.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1954>
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