On 2019-06-28 03:03, Hendrik Leppkes wrote: > On Fri, Jun 28, 2019 at 1:26 AM James Darnley <james.darn...@gmail.com> wrote: >> >> On 2019-06-28 04:26, Linjie Fu wrote: >>> 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. >>> >>> 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 >>> >> >> >> Why am I suspicious that at least one of those is a re-ordered v210? I >> seem to recall that we rejected adding v210 to this list. Either they >> don't belong in this list or they don't belong because libavcodec has a >> proper decoder (at least for v210). >> > > They are not quite as bad as v210 (and not related). > > Microsoft documents them here as the recommended formats to be used on > Windows: > https://docs.microsoft.com/en-us/windows/desktop/medfound/recommended-8-bit-yuv-formats-for-video-rendering#444-formats-32-bits-per-pixel > https://docs.microsoft.com/en-us/windows/desktop/medfound/10-bit-and-16-bit-yuv-video-formats > > - Hendrik
Okay y410 and y210 use the highest 10 bits in each 16-bit word. I apologise for jumping to that conclusion.
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