Changes between Version 44 and Version 45 of colorspace


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Timestamp:
Sep 4, 2025, 11:08:38 PM (10 months ago)
Author:
MasterQuestionable
Comment:

[m] Workaround Trac Wiki content format regression.

͏    ​https://trac.ffmpeg.org/ticket/11334
͏    Also update linked commit.

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  • colorspace

    v44 v45  
    1212{{{#!div style="margin-left: 0; border: 1px solid #e5e5c7; background-color: #FFD"
    1313'''Note:'''\\
    14 ͏    The term "YUV" is ambiguous and often used wrongly [1], including the definition of pixel formats in FFmpeg.\\
     14͏    The term "YUV" is ambiguous and often used wrongly ![1], including the definition of pixel formats in FFmpeg.\\
    1515͏    A more accurate term for how colors stored in digital video would be [https://en.wikipedia.org/wiki/YCbCr YCbCr].\\
    1616͏    Y'UV on the other hand specifies a colorspace consisting of luma (Y') and chrominance (UV) components.\\
    1717͏    For more info read Wikipedia [https://en.wikipedia.org/wiki/YUV <YUV>].\\
    18 [ [1]\\
     18[ ![1]\\
    1919͏    There's no practical difference between YUV and YCbCr: sort of more like "RGB" and "BGR".\\
    2020͏    "UV" doesn't explicitly state the exact type of color difference neither. (so it might be "!CbCr") ]
    … …  
    198198͏    .\\
    199199͏    Image comparison also by:\\
    200 ͏    ffmpeg -hide_banner -nostdin -i ${in0} -i ${in1} -lavfi "ssim; [0][1]psnr" -f null -\\
     200͏    `ffmpeg -hide_banner -nostdin -i ${in0} -i ${in1} -lavfi "ssim; [0][1]psnr" -f null -`\\
    201201͏    [ https://trac.ffmpeg.org/ticket/10922#comment:description ]
    202202
    … …  
    227227͏    “[Parsed_colorspace_0] Input range not set, assuming tv/mepg”\\
    228228͏    Specifying "irange=2" white-out things. (assumed 1 when not set)\\
    229 ͏    Note 6.1.1 didn't emit the warning: but generated [near-]identical [1] files as 20240506 git-master.\\
     229͏    Note 6.1.1 didn't emit the warning: but generated [near-]identical ![1] files as 20240506 git-master.\\
    230230͏    .\\
    231231͏    Less noticeable for |1|: mostly noise differences. [ Near aforementioned area; and the sky banding. ]
    232232
    233 [ [1][=#bitexact]\\
     233[ ![1][=#bitexact]\\
    234234͏    "fast=1" related ones differ petty noises:\\
    235235͏    Presumably for the added "csp:bt709 range:tv" assertions.
    … …  
    405405͏    Hint about [[span(id=full_chroma_inp, [https://ffmpeg.org/ffmpeg-scaler.html#Scaler-Options ͏"full_chroma_inp"] )]]:\\
    406406͏    https://github.com/search?type=code&q=repo:FFmpeg/FFmpeg+%22SWS_FULL_CHR_H_INP%22\\
    407 ͏    https://github.com/FFmpeg/FFmpeg/blob/271aea60a4cd211d92923c53b72cd074c3030897/libswscale/utils.c#L1540-L1556\\
     407͏    https://code.ffmpeg.org/FFmpeg/FFmpeg/src/commit/02a7c85753ad3d4a2cf414849ba4bf28cddb3ffa/libswscale/utils.c#L1331-L1351\\
    408408͏    https://github.com/FFmpeg/FFmpeg/blob/41ed7ab45fc693f7d7fc35664c0233f4c32d69bb/doc/swscale.txt#L50-L57
    409409