Florian Friedrich wrote:
Dear Carl Eugen,
Before looking into the source code (I¹m not a professional
programmer and it¹s hard to follow the route of the pixels), may I
ask this question please: Is there a way to influence the initial
RGB->YUV conversion, picking either 601 or 701 or something else? I
got the impression that there is no parameter and the initial
conversion always follows 601 equasions.
-vf scale="out_color_matrix=bt709"
Seems to work for me in a quick test.
https://www.ffmpeg.org/ffmpeg-filters.html#scale-1
IIRC the range options are more confusing in that to get rgb to yuv full
they don't work, and have lead threads/issues. In that case yuvj is the
way to go.
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