[FFmpeg-devel] [PATCH 1/2] lavc/vaapi_encode_mpeg2: add support for CBR/VBR

Fu, Linjie linjie.fu at intel.com
Thu Jan 24 03:38:00 EET 2019


> -----Original Message-----
> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf
> Of Mark Thompson
> Sent: Thursday, January 24, 2019 07:35
> To: ffmpeg-devel at ffmpeg.org
> Subject: Re: [FFmpeg-devel] [PATCH 1/2] lavc/vaapi_encode_mpeg2: add
> support for CBR/VBR
> 
> On 16/01/2019 14:34, Linjie Fu wrote:
> > Add support for VBR/CBR mode in mpeg2_vaapi encode.
> >
> > Fix #7650.
> >
> > Signed-off-by: Linjie Fu <linjie.fu at intel.com>
> > ---
> >  libavcodec/vaapi_encode_mpeg2.c | 7 +++++++
> >  1 file changed, 7 insertions(+)
> >
> > diff --git a/libavcodec/vaapi_encode_mpeg2.c
> b/libavcodec/vaapi_encode_mpeg2.c
> > index 22d7e306bb..a625b15461 100644
> > --- a/libavcodec/vaapi_encode_mpeg2.c
> > +++ b/libavcodec/vaapi_encode_mpeg2.c
> > @@ -541,6 +541,13 @@ static av_cold int
> vaapi_encode_mpeg2_configure(AVCodecContext *avctx)
> >                 "%d / %d / %d for I- / P- / B-frames.\n",
> >                 priv->quant_i, priv->quant_p, priv->quant_b);
> >
> > +    } else if (ctx->va_rc_mode == VA_RC_CBR ||
> > +               ctx->va_rc_mode == VA_RC_VBR) {
> > +        // These still need to be set for quantiser_scale_code.
> > +        priv->quant_i = 10;
> > +        priv->quant_p = 10;
> > +        priv->quant_b = 10;
> > +
> >      } else {
> >          av_assert0(0 && "Invalid RC mode.");
> >      }
> >
> 
> See existing patch <https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2018-
> December/237943.html>.  I'll send a new version of the remainder of that
> series soon.
> 
> - Mark

Seen, next time I'll check the existing patch list first for the issues in trac.
Thanks.


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