[FFmpeg-trac] #3618(swscale:closed): incorrect error message

FFmpeg trac at avcodec.org
Wed May 7 09:41:34 CEST 2014

#3618: incorrect error message
             Reporter:  spookybathtub  |                    Owner:
                 Type:  defect         |                   Status:  closed
             Priority:  normal         |                Component:  swscale
              Version:  git-master     |               Resolution:  invalid
             Keywords:                 |               Blocked By:
             Blocking:                 |  Reproduced by developer:  0
Analyzed by developer:  0              |
Changes (by cehoyos):

 * keywords:  lut3d =>
 * status:  new => closed
 * resolution:   => invalid


 Replying to [ticket:3618 spookybathtub]:
 > When converting Prores 444 video to x264 with 4:2:0 color space, there
 is an error message:
 > {{{
 > [swscaler @ 0x7fabe280d400] full chroma interpolation for destination
 format 'rgb48le' not yet implemented
 > }}}

 This does not look like an error message.

 > But since I am using `-pix_fmt yuv420p`

 Use the format and the scale filter instead, mixing a filter chain with an
 old fashioned option that affects the filter chain cannot be unambiguous.
 FFmpeg cannot generally decide if it should convert the colour space
 before or after the provided filter chain. In this case it is actually
 undecidable afaict, since you may want to do the lut change in RGB48 but
 you may also prefer RGB24.

Ticket URL: <https://trac.ffmpeg.org/ticket/3618#comment:1>
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