Grayscale x264 convertion

[Andrew Gora]

Yes, -vf format=gray is working!

Thanks to all, especially to Roger Pack.

Carl Eugen, yes, gray alone is sufficient. Moreover, format=yuv422p is
incompatible with the high profile.

Is it sufficient to code grayscale video with 50% of bitrate comparing
to color coding? I dont know about yuv420p (have no idea about planar
formats), but in yuv422 50% of bits belong to luminance channel.

Thanks!

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[Carl Eugen Hoyos]

Andrew Gora <master <at> io.ua> writes:

> Is it sufficient to code grayscale video with 50% of
> bitrate comparing to color coding?

I cannot really answer this question, but I believe you
severely underestimate the many features of video coding
and especially of h264.
(No.)

Carl Eugen

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