On 8/29/19, Carl Eugen Hoyos <[email protected]> wrote: > > > Am 29.08.2019 um 03:34 schrieb Fu, Linjie <[email protected]>: > >>> -----Original Message----- >>> From: ffmpeg-devel [mailto:[email protected]] On Behalf >>> Of Carl Eugen Hoyos >>> Sent: Thursday, August 29, 2019 05:17 >>> To: FFmpeg development discussions and patches <ffmpeg- >>> [email protected]> >>> Subject: Re: [FFmpeg-devel] [PATCH 1/2] lavu/pixfmt: add AYUV pixel >>> format >>> >>>>> Am Mi., 28. Aug. 2019 um 09:34 Uhr schrieb Fu, Linjie >>>>> <[email protected]>: >>>>> >>>>> -----Original Message----- >>>>> From: ffmpeg-devel [mailto:[email protected]] On >>> Behalf >>>>> Of Carl Eugen Hoyos >>>>> Sent: Wednesday, August 28, 2019 14:51 >>>>> To: FFmpeg development discussions and patches <ffmpeg- >>>>> [email protected]> >>>>> Subject: Re: [FFmpeg-devel] [PATCH 1/2] lavu/pixfmt: add AYUV pixel >>> format >>>>> >>>>> >>>>> >>>>>> Am 28.08.2019 um 08:22 schrieb Linjie Fu <[email protected]>: >>>>>> >>>>>> Add support for packed 4:4:4 pixel format AYUV. >>>>>> >>>>>> It is the format that VAAPI/QSV uses when coping with 4:4:4 >>>>>> surfaces. >>>>> >>>>>> Alpha channel will be set to default value for HEVC REXT >>>>>> hw decode. >>>>> >>>>> What is the „default value“? >>>> >>>> Default zero. (and it should be 255 for display) >>> >>> If this is not a bug in the driver, there is no alpha channel that can be >>> used. >>> Rename it to 0YUV and remove the alpha usage. >> >> From the pixel format level, adding AYUV format is for a more >> fundamental/common usage. > > Yes, but the new pixel format will only be accepted if it is needed for > hardware compatibility. > If the hardware only supports 0YUV, it cannot be used to argue in favour of > a new AYUV format.
Nope. > > Carl Eugen > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
