Re: [FFmpeg-devel] [PATCH] lavc/vaapi_encode: Add filler_data option

["Xiang, Haihao" <haihao.xiang-at-intel.com@ffmpeg.org>]

On Sa, 2023-08-05 at 14:06 +0200, David Rosca wrote:
> ---
>  libavcodec/vaapi_encode.c | 1 +
>  libavcodec/vaapi_encode.h | 9 ++++++++-
>  2 files changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/libavcodec/vaapi_encode.c b/libavcodec/vaapi_encode.c
> index bfca315a7a..f161c76304 100644
> --- a/libavcodec/vaapi_encode.c
> +++ b/libavcodec/vaapi_encode.c
> @@ -1860,6 +1860,7 @@ rc_mode_found:
>  #if VA_CHECK_VERSION(1, 3, 0)
>              .quality_factor     = rc_quality,
>  #endif
> +            .rc_flags.bits.disable_bit_stuffing = !ctx->filler_data,
>          };
>          vaapi_encode_add_global_param(avctx,
>                                        VAEncMiscParameterTypeRateControl,
> diff --git a/libavcodec/vaapi_encode.h b/libavcodec/vaapi_encode.h
> index a1e639f56b..a2170cb8b0 100644
> --- a/libavcodec/vaapi_encode.h
> +++ b/libavcodec/vaapi_encode.h
> @@ -198,6 +198,9 @@ typedef struct VAAPIEncodeContext {
>      // Max Frame Size
>      int             max_frame_size;
>  
> +    // Filler Data
> +    int             filler_data;
> +
>      // Explicitly set RC mode (otherwise attempt to pick from
>      // available modes).
>      int             explicit_rc_mode;
> @@ -490,7 +493,11 @@ int ff_vaapi_encode_close(AVCodecContext *avctx);
>      { "max_frame_size", \
>        "Maximum frame size (in bytes)",\
>        OFFSET(common.max_frame_size), AV_OPT_TYPE_INT, \
> -      { .i64 = 0 }, 0, INT_MAX, FLAGS }
> +      { .i64 = 0 }, 0, INT_MAX, FLAGS }, \
> +    { "filler_data", \
> +      "Enable filler data", \
> +      OFFSET(common.filler_data), AV_OPT_TYPE_BOOL, \
> +      { .i64 = 1 }, 0, 1, FLAGS }

Could you add the description about this new option in encoders.texi ?

Thanks
Haihao

>  
>  #define VAAPI_ENCODE_RC_MODE(name, desc) \
>      { #name, desc, 0, AV_OPT_TYPE_CONST, { .i64 = RC_MODE_ ## name }, \

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