On 8/29/19, Carl Eugen Hoyos <ceffm...@gmail.com> wrote: > > > Am 29.08.2019 um 03:34 schrieb Fu, Linjie <linjie...@intel.com>: > >>> -----Original Message----- >>> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf >>> Of Carl Eugen Hoyos >>> Sent: Thursday, August 29, 2019 05:17 >>> To: FFmpeg development discussions and patches <ffmpeg- >>> de...@ffmpeg.org> >>> 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 >>>>> <linjie...@intel.com>: >>>>> >>>>> -----Original Message----- >>>>> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On >>> Behalf >>>>> Of Carl Eugen Hoyos >>>>> Sent: Wednesday, August 28, 2019 14:51 >>>>> To: FFmpeg development discussions and patches <ffmpeg- >>>>> de...@ffmpeg.org> >>>>> Subject: Re: [FFmpeg-devel] [PATCH 1/2] lavu/pixfmt: add AYUV pixel >>> format >>>>> >>>>> >>>>> >>>>>> Am 28.08.2019 um 08:22 schrieb Linjie Fu <linjie...@intel.com>: >>>>>> >>>>>> 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 > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
