Changes between Version 60 and Version 61 of Scaling


Ignore:
Timestamp:
Aug 23, 2024, 6:13:29 AM (2 years ago)
Author:
MasterQuestionable
Comment:

͏    Wiki page is probably not the place for potentially lengthy discussion.
͏    Clean-up and gather positive changes.

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  • Scaling

    v60 v61  
    3434  Correct syntax for SAR 2:3 is "setsar=2/3"; or "setsar=1" for 1:1.
    3535
    36 * When going from BGR (not RGB) to yuv420p the conversion in many colors in swscale is off-by-one, BMP uses BGR. Use -vf scale=flags=accurate_rnd to fix that, also note that "-sws_flags +accurate_rnd" does not work. Zscale can be used too. See #979.
     36* When going from BGR (not RGB) to yuv420p the conversion may be off-by-1. Use "-sws_flags +accurate_rnd" alike or "zscale" to avoid.\\
     37  [ !^ With "swscale", for many colors. See #979 for further caveats. ]
    3738* yuvj!***p pixel formats are deprecated. Yet for x265 the workaround was implemented, but not for jpeg2000 and AV1. For those -vf scale=out_range=pc should be used.
    3839* Conversion from YUV limited to RGB 16bpc (bit-per-component) is broken: use "zscale" instead of "swscale". [ Via "-vf" alike. ]