linux-kernel - Re: [PATCH v4 05/11] media: uapi: h264: Get rid of the p0/b0/b1 ref-lists

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Message-ID: <62750a74-f856-c927-72a3-17d1a2624550@xs4all.nl>
Date:   Mon, 12 Aug 2019 12:20:36 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Ezequiel Garcia <ezequiel@...labora.com>,
        linux-media@...r.kernel.org
Cc:     kernel@...labora.com,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Tomasz Figa <tfiga@...omium.org>,
        linux-rockchip@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Jonas Karlman <jonas@...boo.se>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Alexandre Courbot <acourbot@...omium.org>,
        fbuergisser@...omium.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 05/11] media: uapi: h264: Get rid of the p0/b0/b1
 ref-lists

On 8/8/19 12:34 PM, Ezequiel Garcia wrote:
> From: Boris Brezillon <boris.brezillon@...labora.com>
> 
> Those lists can be extracted from the dpb, let's simplify userspace
> life and build that list kernel-side (generic helpers will be provided
> for drivers that need this list).
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@...labora.com>
> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
> Reviewed-by: Ezequiel Garcia <ezequiel@...labora.com>
> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> ---
> Changes in v4:
> * Add R-b

???

Nothing was added, left-over from some old version?

Regards,

	Hans

> * Remove the reflist from the struct
> 
> Changes in v3:
> * None
> 
> Changes in v2:
> * None
> ---
>  Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 9 ---------
>  include/media/h264-ctrls.h                       | 3 ---
>  2 files changed, 12 deletions(-)
> 
> diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
> index 94fd3a9b8b9e..d60909b2d1ca 100644
> --- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
> +++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
> @@ -1942,15 +1942,6 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
>      * - __u16
>        - ``nal_ref_idc``
>        - NAL reference ID value coming from the NAL Unit header
> -    * - __u8
> -      - ``ref_pic_list_p0[32]``
> -      - Backward reference list used by P-frames in the original bitstream order
> -    * - __u8
> -      - ``ref_pic_list_b0[32]``
> -      - Backward reference list used by B-frames in the original bitstream order
> -    * - __u8
> -      - ``ref_pic_list_b1[32]``
> -      - Forward reference list used by B-frames in the original bitstream order
>      * - __s32
>        - ``top_field_order_cnt``
>        - Picture Order Count for the coded top field
> diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h
> index 31555c99f64a..2de438393025 100644
> --- a/include/media/h264-ctrls.h
> +++ b/include/media/h264-ctrls.h
> @@ -203,9 +203,6 @@ struct v4l2_ctrl_h264_decode_params {
>  	struct v4l2_h264_dpb_entry dpb[16];
>  	__u16 num_slices;
>  	__u16 nal_ref_idc;
> -	__u8 ref_pic_list_p0[32];
> -	__u8 ref_pic_list_b0[32];
> -	__u8 ref_pic_list_b1[32];
>  	__s32 top_field_order_cnt;
>  	__s32 bottom_field_order_cnt;
>  	__u32 flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */
>