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

[Eoff, Ullysses A]

> -----Original Message-----
> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of Zhong Li
> Sent: Thursday, October 11, 2018 2:30 AM
> To: ffmpeg-devel at ffmpeg.org
> Cc: Li, Zhong <zhong.li at intel.com>
> Subject: [FFmpeg-devel] [PATCH 1/2] lavc/qsvenc_jpeg: add async_depth support
> 
> 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 c18fe91..01c10125 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 },
>  };
> 
> --
> 2.7.4
> 
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This fixes it for me.  Please merge.