[FFmpeg-devel] [PATCH] libavfilter-soc: extend vf_scale.c to make it support colorspace details setting

Stefano Sabatini stefano.sabatini-lala
Wed Apr 15 22:56:27 CEST 2009

Hi, as in subject,

maybe the patch should be split, also chroma horizontal shifting and
chroma vertical shifting support should be added.

Try it with:
ffplay in.avi -vfilters  "scale=0:0:sws_flags\=+print_info:lgb\=3.0:cgb\=3.0:brightness\=-20, format=rgb32"

Note that the format=rgb32 or equivalent is required to make the
destination format of the filter supported by
sws_get/setColorspaceDetails(), or no filtering will be done (the
filter still print a warning in this case).

BTW I get red chroma shifting when using format=argb.

FFmpeg = Frenzy and Fostering Miracolous Problematic Educated Guru
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