[libav-devel] [PATCH] lavf/qsvvpp: bypass vpp is not needed.

Luca Barbato lu_zero at gentoo.org
Wed Mar 28 12:01:37 CEST 2018


On 28/03/2018 11:40, Zhong Li wrote:
> It is benefit to performance for specific case.
> 
> Signed-off-by: Zhong Li <zhong.li at intel.com>
> ---
>   libavfilter/vf_vpp_qsv.c | 28 +++++++++++++++++++++++++---
>   1 file changed, 25 insertions(+), 3 deletions(-)
> 
> diff --git a/libavfilter/vf_vpp_qsv.c b/libavfilter/vf_vpp_qsv.c
> index 610e821..568dee5 100644
> --- a/libavfilter/vf_vpp_qsv.c
> +++ b/libavfilter/vf_vpp_qsv.c
> @@ -27,6 +27,7 @@
>   #include "libavutil/eval.h"
>   #include "libavutil/avassert.h"
>   #include "libavutil/pixdesc.h"
> +#include "libavutil/mathematics.h"
>   
>   #include "formats.h"
>   #include "internal.h"
> @@ -249,6 +250,7 @@ static int config_output(AVFilterLink *outlink)
>       QSVVPPParam     param = { NULL };
>       QSVVPPCrop      crop  = { 0 };
>       mfxExtBuffer    *ext_buf[ENH_FILTERS_COUNT];
> +    AVFilterLink    *inlink = ctx->inputs[0];
>   
>       outlink->w          = vpp->out_width;
>       outlink->h          = vpp->out_height;
> @@ -320,14 +322,34 @@ static int config_output(AVFilterLink *outlink)
>           param.ext_buf[param.num_ext_buf++] = (mfxExtBuffer*)&vpp->procamp_conf;
>       }
>   
> -    return ff_qsvvpp_create(ctx, &vpp->qsv, &param);
> +    if (vpp->use_frc || vpp->use_crop || vpp->deinterlace || vpp->denoise ||
> +        vpp->detail || vpp->procamp || inlink->w != outlink->w || inlink->h != outlink->h)
> +        return ff_qsvvpp_create(ctx, &vpp->qsv, &param);
> +    else {
> +        av_log(ctx, AV_LOG_VERBOSE, "qsv vpp pass through mode.\n");
> +        if (inlink->hw_frames_ctx)
> +            outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
> +    }
> +
> +    return 0;
>   }
>   
>   static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
>   {
> -    VPPContext *vpp = inlink->dst->priv;
> +    int              ret = 0;
> +    AVFilterContext  *ctx = inlink->dst;
> +    VPPContext       *vpp = inlink->dst->priv;
> +    AVFilterLink     *outlink = ctx->outputs[0];
> +
> +    if (vpp->qsv)
> +        ret = ff_qsvvpp_filter_frame(vpp->qsv, inlink, picref);
> +    else {
> +        if (picref->pts != AV_NOPTS_VALUE)
> +            picref->pts = av_rescale_q(picref->pts, inlink->time_base, outlink->time_base);
> +        ret = ff_filter_frame(outlink, picref);
> +    }
>   
> -    return ff_qsvvpp_filter_frame(vpp->qsv, inlink, picref);
> +    return ret;
>   }
>   
>   static int query_formats(AVFilterContext *ctx)
> 

Sounds fine.


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