sys-kernel/linux-headers/files/0001-CHROMIUM-media-headers-Import-V4L2-headers-from-Chro.patch

From 80c9a8000da26c98df5f491c2720812ffe71a5e5 Mon Sep 17 00:00:00 2001
From: Daniel Wang <wonderfly@google.com>
Date: Mon, 13 Mar 2017 15:21:58 -0700
Subject: [PATCH] CHROMIUM: v4l: Add H264 low-level decoder API compound
 controls.

---
 include/uapi/linux/v4l2-controls.h | 153 +++++++++++++++++++++++++++++++++++++
 include/uapi/linux/videodev2.h     |  22 +++++-
 2 files changed, 173 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 1bdce50..35aa1db 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -518,6 +518,12 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type {
 };
 #define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER	(V4L2_CID_MPEG_BASE+381)
 #define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP	(V4L2_CID_MPEG_BASE+382)
+#define V4L2_CID_MPEG_VIDEO_H264_SPS		(V4L2_CID_MPEG_BASE+383)
+#define V4L2_CID_MPEG_VIDEO_H264_PPS		(V4L2_CID_MPEG_BASE+384)
+#define V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX	(V4L2_CID_MPEG_BASE+385)
+#define V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAM	(V4L2_CID_MPEG_BASE+386)
+#define V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAM	(V4L2_CID_MPEG_BASE+387)
+
 #define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP	(V4L2_CID_MPEG_BASE+400)
 #define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP	(V4L2_CID_MPEG_BASE+401)
 #define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP	(V4L2_CID_MPEG_BASE+402)
@@ -945,6 +951,153 @@ enum v4l2_deemphasis {
 #define V4L2_CID_RF_TUNER_IF_GAIN		(V4L2_CID_RF_TUNER_CLASS_BASE + 62)
 #define V4L2_CID_RF_TUNER_PLL_LOCK			(V4L2_CID_RF_TUNER_CLASS_BASE + 91)
 
+/* Complex controls */
+
+#define V4L2_H264_SPS_CONSTRAINT_SET0_FLAG			0x01
+#define V4L2_H264_SPS_CONSTRAINT_SET1_FLAG			0x02
+#define V4L2_H264_SPS_CONSTRAINT_SET2_FLAG			0x04
+#define V4L2_H264_SPS_CONSTRAINT_SET3_FLAG			0x08
+#define V4L2_H264_SPS_CONSTRAINT_SET4_FLAG			0x10
+#define V4L2_H264_SPS_CONSTRAINT_SET5_FLAG			0x20
+
+#define V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE		0x01
+#define V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS	0x02
+#define V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO		0x04
+#define V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED	0x08
+#define V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY			0x10
+#define V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD		0x20
+#define V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE			0x40
+struct v4l2_ctrl_h264_sps {
+	__u8 profile_idc;
+	__u8 constraint_set_flags;
+	__u8 level_idc;
+	__u8 seq_parameter_set_id;
+	__u8 chroma_format_idc;
+	__u8 bit_depth_luma_minus8;
+	__u8 bit_depth_chroma_minus8;
+	__u8 log2_max_frame_num_minus4;
+	__u8 pic_order_cnt_type;
+	__u8 log2_max_pic_order_cnt_lsb_minus4;
+	__s32 offset_for_non_ref_pic;
+	__s32 offset_for_top_to_bottom_field;
+	__u8 num_ref_frames_in_pic_order_cnt_cycle;
+	__s32 offset_for_ref_frame[255];
+	__u8 max_num_ref_frames;
+	__u16 pic_width_in_mbs_minus1;
+	__u16 pic_height_in_map_units_minus1;
+	__u8 flags;
+};
+
+#define V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE				0x0001
+#define V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT	0x0002
+#define V4L2_H264_PPS_FLAG_WEIGHTED_PRED				0x0004
+#define V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT		0x0008
+#define V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED			0x0010
+#define V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT			0x0020
+#define V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE				0x0040
+#define V4L2_H264_PPS_FLAG_PIC_SCALING_MATRIX_PRESENT			0x0080
+struct v4l2_ctrl_h264_pps {
+	__u8 pic_parameter_set_id;
+	__u8 seq_parameter_set_id;
+	__u8 num_slice_groups_minus1;
+	__u8 num_ref_idx_l0_default_active_minus1;
+	__u8 num_ref_idx_l1_default_active_minus1;
+	__u8 weighted_bipred_idc;
+	__s8 pic_init_qp_minus26;
+	__s8 pic_init_qs_minus26;
+	__s8 chroma_qp_index_offset;
+	__s8 second_chroma_qp_index_offset;
+	__u8 flags;
+};
+
+struct v4l2_ctrl_h264_scaling_matrix {
+	__u8 scaling_list_4x4[6][16];
+	__u8 scaling_list_8x8[6][64];
+};
+
+struct v4l2_h264_weight_factors {
+	__s8 luma_weight[32];
+	__s8 luma_offset[32];
+	__s8 chroma_weight[32][2];
+	__s8 chroma_offset[32][2];
+};
+
+struct v4l2_h264_pred_weight_table {
+	__u8 luma_log2_weight_denom;
+	__u8 chroma_log2_weight_denom;
+	struct v4l2_h264_weight_factors weight_factors[2];
+};
+
+#define V4L2_SLICE_FLAG_FIELD_PIC		0x01
+#define V4L2_SLICE_FLAG_BOTTOM_FIELD		0x02
+#define V4L2_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED	0x04
+#define V4L2_SLICE_FLAG_SP_FOR_SWITCH		0x08
+struct v4l2_ctrl_h264_slice_param {
+	/* Size in bytes, including header */
+	__u32 size;
+	/* Offset in bits to slice_data() from the beginning of this slice. */
+	__u32 header_bit_size;
+
+	__u16 first_mb_in_slice;
+	__u8 slice_type;
+	__u8 pic_parameter_set_id;
+	__u8 colour_plane_id;
+	__u16 frame_num;
+	__u16 idr_pic_id;
+	__u16 pic_order_cnt_lsb;
+	__s32 delta_pic_order_cnt_bottom;
+	__s32 delta_pic_order_cnt0;
+	__s32 delta_pic_order_cnt1;
+	__u8 redundant_pic_cnt;
+
+	struct v4l2_h264_pred_weight_table pred_weight_table;
+	/* Size in bits of dec_ref_pic_marking() syntax element. */
+	__u32 dec_ref_pic_marking_bit_size;
+	/* Size in bits of pic order count syntax. */
+	__u32 pic_order_cnt_bit_size;
+
+	__u8 cabac_init_idc;
+	__s8 slice_qp_delta;
+	__s8 slice_qs_delta;
+	__u8 disable_deblocking_filter_idc;
+	__s8 slice_alpha_c0_offset_div2;
+	__s8 slice_beta_offset_div2;
+	__u32 slice_group_change_cycle;
+
+	__u8 num_ref_idx_l0_active_minus1;
+	__u8 num_ref_idx_l1_active_minus1;
+	/*  Entries on each list are indices
+	 *  into v4l2_ctrl_h264_decode_param.dpb[]. */
+	__u8 ref_pic_list0[32];
+	__u8 ref_pic_list1[32];
+
+	__u8 flags;
+};
+
+/* If not set, this entry is unused for reference. */
+#define V4L2_H264_DPB_ENTRY_FLAG_ACTIVE		0x01
+#define V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM	0x02
+struct v4l2_h264_dpb_entry {
+	__u32 buf_index; /* v4l2_buffer index */
+	__u16 frame_num;
+	__u16 pic_num;
+	/* Note that field is indicated by v4l2_buffer.field */
+	__s32 top_field_order_cnt;
+	__s32 bottom_field_order_cnt;
+	__u8 flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */
+};
+
+struct v4l2_ctrl_h264_decode_param {
+	__u32 num_slices;
+	__u8 idr_pic_flag;
+	__u8 nal_ref_idc;
+	__s32 top_field_order_cnt;
+	__s32 bottom_field_order_cnt;
+	__u8 ref_pic_list_p0[32];
+	__u8 ref_pic_list_b0[32];
+	__u8 ref_pic_list_b1[32];
+	struct v4l2_h264_dpb_entry dpb[16];
+};
 
 /*  Detection-class control IDs defined by V4L2 */
 #define V4L2_CID_DETECT_CLASS_BASE		(V4L2_CTRL_CLASS_DETECT | 0x900)
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index a0e87d1..5606acb 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -585,6 +585,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
+#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
@@ -844,6 +845,7 @@ struct v4l2_plane {
  * @length:	size in bytes of the buffer (NOT its payload) for single-plane
  *		buffers (when type != *_MPLANE); number of elements in the
  *		planes array for multi-plane buffers
+ * @config_store: this buffer should use this configuration store
  *
  * Contains data exchanged by application and driver using one of the Streaming
  * I/O methods.
@@ -867,7 +869,7 @@ struct v4l2_buffer {
 		__s32		fd;
 	} m;
 	__u32			length;
-	__u32			reserved2;
+	__u32			config_store;
 	__u32			reserved;
 };
 
@@ -1471,12 +1473,20 @@ struct v4l2_ext_control {
 		__u8 __user *p_u8;
 		__u16 __user *p_u16;
 		__u32 __user *p_u32;
+		struct v4l2_ctrl_h264_sps __user *p_h264_sps;
+		struct v4l2_ctrl_h264_pps __user *p_h264_pps;
+		struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scal_mtrx;
+		struct v4l2_ctrl_h264_slice_param __user *p_h264_slice_param;
+		struct v4l2_ctrl_h264_decode_param __user *p_h264_decode_param;
 		void __user *ptr;
 	};
 } __attribute__ ((packed));
 
 struct v4l2_ext_controls {
-	__u32 ctrl_class;
+	union {
+		__u32 ctrl_class;
+		__u32 config_store;
+	};
 	__u32 count;
 	__u32 error_idx;
 	__u32 reserved[2];
@@ -1504,6 +1514,13 @@ enum v4l2_ctrl_type {
 	V4L2_CTRL_TYPE_U8	     = 0x0100,
 	V4L2_CTRL_TYPE_U16	     = 0x0101,
 	V4L2_CTRL_TYPE_U32	     = 0x0102,
+	V4L2_CTRL_TYPE_H264_SPS      = 0x0103,
+	V4L2_CTRL_TYPE_H264_PPS      = 0x0104,
+	V4L2_CTRL_TYPE_H264_SCALING_MATRIX = 0x0105,
+	V4L2_CTRL_TYPE_H264_SLICE_PARAM = 0x0106,
+	V4L2_CTRL_TYPE_H264_DECODE_PARAM = 0x0107,
+
+	V4L2_CTRL_TYPE_PRIVATE       = 0xffff,
 };
 
 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
@@ -1558,6 +1575,7 @@ struct v4l2_querymenu {
 #define V4L2_CTRL_FLAG_VOLATILE		0x0080
 #define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
 #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
+#define V4L2_CTRL_FLAG_CAN_STORE	0x0400
 
 /*  Query flags, to be ORed with the control ID */
 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
-- 
2.6.6