[VDPAU] [PATCH] Enable Lossless Decode Capabilities via VDPAU API
José Hiram Soltren
jsoltren at nvidia.com
Wed Dec 10 07:01:15 PST 2014
Hello,
On 12/10/2014 08:04 AM, Rémi Denis-Courmont wrote:
> Le 2014-12-09 20:25, José Hiram Soltren a écrit :
>>> Should we continue with residual_color_transform_flag or change to
>>> separate_colour_plane_flag as mentioned in the spec?
>>
>> I think separate_colour_plane_flag is the better choice. I was mistaken:
>> residual_color_transform_flag is an ffmpeg-ism. I don't see it in the spec.
>
> FWIW, transform_bypass is also a libavcodec'ism. The proper name is
> qpprime_y_zero_transform_bypass_flag (ouch!).
Indeed it is, thanks for catching this.
I prefer for our VdpPictureInfo field names to match the specifications when
possible. So, I vote for replacing "transform_bypass" with
"qpprime_y_zero_transform_bypass_flag".
Still, I suggest that we keep the line about drivers being able to accept
values greater than one here, to work around potential encoder bugs.
Thanks,
--José
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