Re: [FFmpeg-devel] [PATCH] lavc/qsvenc_h264: don't support P010 format

[Dong, Ruijing]

[AMD Official Use Only - General]

Will it make sense to accept P010 input, however encode to h264 8bit?

Thanks,
Ruijing

-----Original Message-----
From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of James Almer
Sent: Friday, November 25, 2022 6:25 PM
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] lavc/qsvenc_h264: don't support P010 format

On 11/25/2022 8:20 PM, Soft Works wrote:
>
>
>> -----Original Message-----
>> From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of
>> James Almer
>> Sent: Friday, November 25, 2022 8:48 PM
>> To: ffmpeg-devel@ffmpeg.org
>> Subject: Re: [FFmpeg-devel] [PATCH] lavc/qsvenc_h264: don't support
>> P010 format
>>
>> On 11/25/2022 3:03 PM, Soft Works wrote:
>>>
>>>
>>>> -----Original Message-----
>>>> From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of
>>>> Anton Khirnov
>>>> Sent: Friday, November 25, 2022 2:46 PM
>>>> To: FFmpeg development discussions and patches <ffmpeg-
>>>> de...@ffmpeg.org>
>>>> Cc: Haihao Xiang <haihao.xi...@intel.com>
>>>> Subject: Re: [FFmpeg-devel] [PATCH] lavc/qsvenc_h264: don't
>> support
>>>> P010 format
>>>>
>>>> Why?
>>>
>>> It's rarely used. There's not even a hwaccel that can decode this.
>>
>> The dxva2/d3d11 hwaccels seemingly do
>
> No, only for HEVC and VP9. Probably for AV1 as well  in the near future.

Well, then that is a good reason to not remove support in this encoder for a 
pixel format that not only our software scaler can generate, but decoders using 
hwaccel backends can output too.
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