Commit 869ba3c8 authored by Benjamin Gaignard's avatar Benjamin Gaignard Committed by Mauro Carvalho Chehab
Browse files

media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array 



Make explicit that V4L2_CID_STATELESS_HEVC_SLICE_PARAMS control is
a dynamic array control type.
Some drivers may be able to receive multiple slices in one control
to improve decoding performance.

Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: default avatarEzequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 625e9ab4

Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst

+2 −0
Original line number Diff line number Diff line
@@ -2986,6 +2986,8 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - 
    These bitstream parameters are defined according to :ref:`hevc`.

    They are described in section 7.4.7 "General slice segment header

    semantics" of the specification.

    This control is a dynamically sized 1-dimensional array,

    V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.



.. c:type:: v4l2_ctrl_hevc_slice_params

drivers/media/v4l2-core/v4l2-ctrls-defs.c

+1 −0
Original line number Diff line number Diff line
@@ -1510,6 +1510,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, 
		break;

	case V4L2_CID_STATELESS_HEVC_SLICE_PARAMS:

		*type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS;

		*flags |= V4L2_CTRL_FLAG_DYNAMIC_ARRAY;

		break;

	case V4L2_CID_STATELESS_HEVC_SCALING_MATRIX:

		*type = V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX;

drivers/staging/media/sunxi/cedrus/cedrus.c

+2 −0
Original line number Diff line number Diff line
@@ -178,6 +178,8 @@ static const struct cedrus_control cedrus_controls[] = { 
	{

		.cfg = {

			.id	= V4L2_CID_STATELESS_HEVC_SLICE_PARAMS,

			/* The driver can only handle 1 entry per slice for now */

			.dims   = { 1 },

		},

		.codec		= CEDRUS_CODEC_H265,

	},

include/media/hevc-ctrls.h

+3 −0
Original line number Diff line number Diff line
@@ -314,6 +314,9 @@ struct v4l2_hevc_pred_weight_table { 
/**

 * struct v4l2_ctrl_hevc_slice_params - HEVC slice parameters

 *

 * This control is a dynamically sized 1-dimensional array,

 * V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.

 *

 * @bit_size: size (in bits) of the current slice data

 * @data_bit_offset: offset (in bits) to the video data in the current slice data

 * @nal_unit_type: specifies the coding type of the slice (B, P or I)