[FFmpeg-devel] [PATCH V2 1/3] libavcodec/qsvenc: Add max slice size support to hevc_qsv

[Xiang, Haihao]

On Tue, 2022-01-25 at 15:12 +0800, Wenbin Chen wrote:
> Add max_slice_size option to hevc_qsv as well.
> 
> Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>
> ---
>  doc/encoders.texi   | 3 +++
>  libavcodec/qsvenc.c | 9 ++++-----
>  2 files changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/doc/encoders.texi b/doc/encoders.texi
> index e3adbf4325..8966610263 100644
> --- a/doc/encoders.texi
> +++ b/doc/encoders.texi
> @@ -3397,6 +3397,9 @@ Enable rate distortion optimization.
>  @item @var{max_frame_size}
>  Maximum encoded frame size in bytes.
>  
> + at item @var{max_slice_size}
> +Maximum encoded slice size in bytes.
> +
>  @item @var{p_strategy}
>  Enable P-pyramid: 0-default 1-simple 2-pyramid(bf need to be set to 0).
>  
> diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
> index 413e5ae8f6..f311cd9ce4 100644
> --- a/libavcodec/qsvenc.c
> +++ b/libavcodec/qsvenc.c
> @@ -877,11 +877,6 @@ static int init_video_param(AVCodecContext *avctx,
> QSVEncContext *q)
>              if (q->mbbrc >= 0)
>                  q->extco2.MBBRC = q->mbbrc ? MFX_CODINGOPTION_ON :
> MFX_CODINGOPTION_OFF;
>  
> -#if QSV_HAVE_MAX_SLICE_SIZE
> -            if (q->max_slice_size >= 0)
> -                q->extco2.MaxSliceSize = q->max_slice_size;
> -#endif
> -
>  #if QSV_HAVE_TRELLIS
>              if (avctx->trellis >= 0)
>                  q->extco2.Trellis = (avctx->trellis == 0) ? MFX_TRELLIS_OFF :
> (MFX_TRELLIS_I | MFX_TRELLIS_P | MFX_TRELLIS_B);
> @@ -907,6 +902,10 @@ static int init_video_param(AVCodecContext *avctx,
> QSVEncContext *q)
>                  q->extco2.ExtBRC = q->extbrc ? MFX_CODINGOPTION_ON :
> MFX_CODINGOPTION_OFF;
>              if (q->max_frame_size >= 0)
>                  q->extco2.MaxFrameSize = q->max_frame_size;
> +#if QSV_HAVE_MAX_SLICE_SIZE
> +            if (q->max_slice_size >= 0)
> +                q->extco2.MaxSliceSize = q->max_slice_size;
> +#endif
>  #if QSV_HAVE_DISABLEDEBLOCKIDC
>              q->extco2.DisableDeblockingIdc = q->dblk_idc;
>  #endif

Patchset LGTM, will apply. 

-Haihao