[FFmpeg-devel] [PATCH 1/5] lavu/pixfmt: add Y210/AYUV/Y410 pixel formats
Carl Eugen Hoyos
ceffmpeg at gmail.com
Thu Jun 27 21:40:16 EEST 2019
Am Do., 27. Juni 2019 um 16:28 Uhr schrieb Linjie Fu <linjie.fu at intel.com>:
> Previously, media driver provided planar format(like 420 8 bit), but
> for HEVC Range Extension (422/444 8/10 bit), the decoded image
> is produced in packed format.
(The question "why" and the answer "because Windows expects it"
come to mind.)
> Y210/AYUV/Y410 are packed formats which are needed in HEVC
> Rext decoding for both VAAPI and QSV:
> - Y210: 422 10 BIT
> - AYUV: 444 8 BIT
> - Y410: 444 10 BIT
Could you explain the relation between an alpha channel and hevc?
Imo, for this patch to be acceptable, a conversion function in
libswscale is needed.
Thank you, Carl Eugen
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