[FFmpeg-devel] [PATCH 2/5] lavc/hevc_ps: parse constraint flags for HEVC REXT

Fu, Linjie linjie.fu at intel.com
Mon Sep 16 16:51:59 EEST 2019


> -----Original Message-----
> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf
> Of Carl Eugen Hoyos
> Sent: Monday, September 16, 2019 18:06
> To: FFmpeg development discussions and patches <ffmpeg-
> devel at ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [PATCH 2/5] lavc/hevc_ps: parse constraint flags
> for HEVC REXT
> 
> Am Mo., 16. Sept. 2019 um 09:35 Uhr schrieb Linjie Fu <linjie.fu at intel.com>:
> >
> > Parse all the constraint flags according to ITU-T Rec. H.265 (02/2018).
> 
> > It can be passed to hw decoders to determine the exact profile for
> > Range Extension HEVC.
> 
> I am not a native speaker but I believe this should be more like:
> They are needed at least for some hw decoders
> or
> They have to be passed to hw decoders
> 
> Or are the flags not really "needed" for vaapi?
> 
These flags are needed for VAAPI.
And it could be emphasized in the commit message to make it more clear.

- linjie



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