[FFmpeg-devel] [PATCH] nvenc: Compensate for hardware trying to mess with aspect ratio of DVD content.

[Nicolas George]

L'octidi 28 nivôse, an CCXXIII, Kieran Kunhya a écrit :
> The behaviour of the Nvidia code I believe is correct.
> As far as I understand it corrects SAR for 720-width content to comply
> with BT601.

That is just not true.

Basic principle: THE COMPETENT USER IS RIGHT.

If someone knows BT601, and knowing it decide to produce a video that does
not conform to it, for example writing "testsrc=s=720x576,setsar=64/45",
then the software must comply.

There is a very simple way of flagging content that is supposed to comply
with BT601: the SAR is 512/351. If SAR is 64/45, that means someone before
nvenc decided that the video is not expected to conform with BT601, and
nvenc has no right to decide otherwise.

Regards,

-- 
  Nicolas George
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