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diff --git a/DOCS/man/en/options.rst b/DOCS/man/en/options.rst index 66cdadd120..ad463daffc 100644 --- a/DOCS/man/en/options.rst +++ b/DOCS/man/en/options.rst @@ -174,6 +174,31 @@ Enabled by default. +``--ass-vsfilter-color-compat=<basic|full|force-601|no`` + Mangle colors like (xy-)vsfilter do (default: basic). Historically, VSFilter + was not colorspace aware. This was no problem as long as the colorspace + used for SD video (BT.601) was used. But when everything switched to HD + (BT.709), VSFilter was still converting RGB colors to BT.601, rendered + them into the video frame, and handled the frame to the video output, which + would use BT.709 for conversion to RGB. The result were mangled subtitle + colors. Later on, bad hacks were added on top of the ASS format to control + how colors are to be mangled. + + :basic: Handle only BT.601->BT.709 mangling, if the subtitles seem to + indicate that this is required (default). + :full: Handle the full ``YCbCr Matrix`` header with all video colorspaces + supported by libass and mpv. This might lead to bad breakages in + corner cases and is not strictly needed for compatibility + (hopefully), which is why this is not default. + :force-601: Force BT.601->BT.709 mangling, regardless of subtitle headers + or video colorspace. + :no: Disable color mangling completely. All colors are RGB. + + Choosing anything other than ``no`` will make the subtitle color depend on + the video colorspace, and it's for example in theory not possible to reuse + a subtitle script with another video file. The ``--ass-style-override`` + option doesn't affect how this option is interpreted. + ``--audio-demuxer=<[+]name>`` Use this audio demuxer type when using ``--audiofile``. Use a '+' before the name to force it; this will skip some checks. Give the demuxer name as |