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Date: Sat, 2 Apr 2022 09:03:43 -0300
From: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To: Nicolas Dufresne <nicolas.dufresne@...labora.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
kernel@...labora.com,
Sebastian Fricke <sebastian.fricke@...labora.com>,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH v2 06/23] media: h264: Increase reference lists size to 32
On Thu, Mar 31, 2022 at 03:37:08PM -0400, Nicolas Dufresne wrote:
> This is to accommodate support for field decoding, which splits the top
> and the bottom references into the reference list.
>
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
> Reviewed-by: Sebastian Fricke <sebastian.fricke@...labora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
> ---
> drivers/media/v4l2-core/v4l2-h264.c | 6 +++---
> drivers/staging/media/hantro/hantro_hw.h | 6 +++---
> drivers/staging/media/rkvdec/rkvdec-h264.c | 6 +++---
> include/media/v4l2-h264.h | 8 ++++----
> 4 files changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
> index afbfcf78efe4..4b46b36526c0 100644
> --- a/drivers/media/v4l2-core/v4l2-h264.c
> +++ b/drivers/media/v4l2-core/v4l2-h264.c
> @@ -212,7 +212,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
> * v4l2_h264_build_p_ref_list() - Build the P reference list
> *
> * @builder: reference list builder context
> - * @reflist: 16 sized array used to store the P reference list. Each entry
> + * @reflist: 32 sized array used to store the P reference list. Each entry
> * is a v4l2_h264_reference structure
> *
> * This functions builds the P reference lists. This procedure is describe in
> @@ -235,9 +235,9 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
> * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
> *
> * @builder: reference list builder context
> - * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
> + * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
> * is a v4l2_h264_reference structure
> - * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
> + * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
> * is a v4l2_h264_reference structure
> *
> * This functions builds the B0/B1 reference lists. This procedure is described
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 2bc6b8f088f5..292aaaabaf24 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
> * @b1: B1 reflist
> */
> struct hantro_h264_dec_reflists {
> - struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
> - struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
> - struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
> + struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
> + struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
> + struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
> };
>
> /**
> diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
> index 3c7f3d87fab4..dff89732ddd0 100644
> --- a/drivers/staging/media/rkvdec/rkvdec-h264.c
> +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
> @@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
> #define RKVDEC_H264_DPB_SIZE 16
>
> struct rkvdec_h264_reflists {
> - struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
> - struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
> - struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
> + struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
> + struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
> + struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
> u8 num_valid;
> };
>
> diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
> index ef9a894e3c32..e282fb16ac58 100644
> --- a/include/media/v4l2-h264.h
> +++ b/include/media/v4l2-h264.h
> @@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
> u16 longterm : 1;
> } refs[V4L2_H264_NUM_DPB_ENTRIES];
> s32 cur_pic_order_count;
> - struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
> + struct v4l2_h264_reference unordered_reflist[V4L2_H264_REF_LIST_LEN];
> u8 num_valid;
> };
>
> @@ -51,9 +51,9 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
> * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
> *
> * @builder: reference list builder context
> - * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
> + * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
> * is a v4l2_h264_reference structure
> - * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
> + * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
> * is a v4l2_h264_reference structure
> *
> * This functions builds the B0/B1 reference lists. This procedure is described
> @@ -70,7 +70,7 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
> * v4l2_h264_build_p_ref_list() - Build the P reference list
> *
> * @builder: reference list builder context
> - * @reflist: 16 sized array used to store the P reference list. Each entry
> + * @reflist: 32 sized array used to store the P reference list. Each entry
> * is a v4l2_h264_reference structure
> *
> * This functions builds the P reference lists. This procedure is describe in
> --
> 2.34.1
>
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