[libav-devel] [PATCH 1/2] lavc/qsvenc_jpeg: add async_depth support

Luca Barbato lu_zero at gentoo.org
Thu Oct 11 11:33:50 CEST 2018


On 11/10/2018 11:26, Zhong Li wrote:
> Currently qsv (m)jpeg encoding is broken.
> Regression introducing by the commit(id: c1bcd3): fix async support,
> which requires the minimum async_depth to be 1, instead previous zero.
> But the default async_depth of qsv (m)jpeg encoding is still initialized
> (mostly) as zero.
> 
> This patch also abviously improves qsv (m)jpeg encoding performance
> due to the default async_depth is changed to 4.
> 
> Signed-off-by: Zhong Li <zhong.li at intel.com>
> ---
>  libavcodec/qsvenc_jpeg.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/libavcodec/qsvenc_jpeg.c b/libavcodec/qsvenc_jpeg.c
> index e11b74d..7465bb9 100644
> --- a/libavcodec/qsvenc_jpeg.c
> +++ b/libavcodec/qsvenc_jpeg.c
> @@ -64,6 +64,7 @@ static av_cold int qsv_enc_close(AVCodecContext *avctx)
>  #define OFFSET(x) offsetof(QSVMJPEGEncContext, x)
>  #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
>  static const AVOption options[] = {
> +    { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 1, INT_MAX, VE },
>      { NULL },
>  };
>  
> 

both look fine. I'd merge them this evening.

lu


More information about the libav-devel mailing list