[FFmpeg-trac] #3794(swscale:new): SWSCALE: Quantization Errors in Y Studio Range

FFmpeg trac at avcodec.org
Thu Jul 24 01:30:52 CEST 2014


#3794: SWSCALE: Quantization Errors in Y Studio Range
------------------------------------+-----------------------------------
             Reporter:  troy_s      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  swscale
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by AndyF):

 rgb to yuv conversions don't honor *_range=full that only works with yuv
 -> yuv.

 The output of your command (I just tested) produced video range - of
 course by default players will stretch this back to full RGB (and may also
 sub-sample as well).

 If you want full range rgb -> yuv use -pix_fmt yuvj444p

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3794#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list