| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * These are the H.264 state controls for use with stateless H.264 |
| * codec drivers. |
| * |
| * It turns out that these structs are not stable yet and will undergo |
| * more changes. So keep them private until they are stable and ready to |
| * become part of the official public API. |
| */ |
| |
| #ifndef _H264_CTRLS_H_ |
| #define _H264_CTRLS_H_ |
| |
| #include <linux/videodev2.h> |
| |
| /* |
| * Maximum DPB size, as specified by section 'A.3.1 Level limits |
| * common to the Baseline, Main, and Extended profiles'. |
| */ |
| #define V4L2_H264_NUM_DPB_ENTRIES 16 |
| |
| /* Our pixel format isn't stable at the moment */ |
| #define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */ |
| |
| /* |
| * This is put insanely high to avoid conflicting with controls that |
| * would be added during the phase where those controls are not |
| * stable. It should be fixed eventually. |
| */ |
| #define V4L2_CID_MPEG_VIDEO_H264_SPS (V4L2_CID_MPEG_BASE+1000) |
| #define V4L2_CID_MPEG_VIDEO_H264_PPS (V4L2_CID_MPEG_BASE+1001) |
| #define V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX (V4L2_CID_MPEG_BASE+1002) |
| #define V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (V4L2_CID_MPEG_BASE+1003) |
| #define V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (V4L2_CID_MPEG_BASE+1004) |
| #define V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE (V4L2_CID_MPEG_BASE+1005) |
| #define V4L2_CID_MPEG_VIDEO_H264_START_CODE (V4L2_CID_MPEG_BASE+1006) |
| |
| /* enum v4l2_ctrl_type type values */ |
| #define V4L2_CTRL_TYPE_H264_SPS 0x0110 |
| #define V4L2_CTRL_TYPE_H264_PPS 0x0111 |
| #define V4L2_CTRL_TYPE_H264_SCALING_MATRIX 0x0112 |
| #define V4L2_CTRL_TYPE_H264_SLICE_PARAMS 0x0113 |
| #define V4L2_CTRL_TYPE_H264_DECODE_PARAMS 0x0114 |
| |
| enum v4l2_mpeg_video_h264_decode_mode { |
| V4L2_MPEG_VIDEO_H264_DECODE_MODE_SLICE_BASED, |
| V4L2_MPEG_VIDEO_H264_DECODE_MODE_FRAME_BASED, |
| }; |
| |
| enum v4l2_mpeg_video_h264_start_code { |
| V4L2_MPEG_VIDEO_H264_START_CODE_NONE, |
| V4L2_MPEG_VIDEO_H264_START_CODE_ANNEX_B, |
| }; |
| |
| #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; |
| __u8 max_num_ref_frames; |
| __u8 num_ref_frames_in_pic_order_cnt_cycle; |
| __s32 offset_for_ref_frame[255]; |
| __s32 offset_for_non_ref_pic; |
| __s32 offset_for_top_to_bottom_field; |
| __u16 pic_width_in_mbs_minus1; |
| __u16 pic_height_in_map_units_minus1; |
| __u32 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; |
| __u16 flags; |
| }; |
| |
| struct v4l2_ctrl_h264_scaling_matrix { |
| __u8 scaling_list_4x4[6][16]; |
| __u8 scaling_list_8x8[6][64]; |
| }; |
| |
| struct v4l2_h264_weight_factors { |
| __s16 luma_weight[32]; |
| __s16 luma_offset[32]; |
| __s16 chroma_weight[32][2]; |
| __s16 chroma_offset[32][2]; |
| }; |
| |
| struct v4l2_h264_pred_weight_table { |
| __u16 luma_log2_weight_denom; |
| __u16 chroma_log2_weight_denom; |
| struct v4l2_h264_weight_factors weight_factors[2]; |
| }; |
| |
| #define V4L2_H264_SLICE_TYPE_P 0 |
| #define V4L2_H264_SLICE_TYPE_B 1 |
| #define V4L2_H264_SLICE_TYPE_I 2 |
| #define V4L2_H264_SLICE_TYPE_SP 3 |
| #define V4L2_H264_SLICE_TYPE_SI 4 |
| |
| #define V4L2_H264_SLICE_FLAG_FIELD_PIC 0x01 |
| #define V4L2_H264_SLICE_FLAG_BOTTOM_FIELD 0x02 |
| #define V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED 0x04 |
| #define V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH 0x08 |
| |
| struct v4l2_ctrl_h264_slice_params { |
| /* Size in bytes, including header */ |
| __u32 size; |
| |
| /* Offset in bytes to the start of slice in the OUTPUT buffer. */ |
| __u32 start_byte_offset; |
| |
| /* 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; |
| __u8 redundant_pic_cnt; |
| __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; |
| |
| 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; |
| __u8 num_ref_idx_l0_active_minus1; |
| __u8 num_ref_idx_l1_active_minus1; |
| __u32 slice_group_change_cycle; |
| |
| /* |
| * Entries on each list are indices into |
| * v4l2_ctrl_h264_decode_params.dpb[]. |
| */ |
| __u8 ref_pic_list0[32]; |
| __u8 ref_pic_list1[32]; |
| |
| __u32 flags; |
| }; |
| |
| #define V4L2_H264_DPB_ENTRY_FLAG_VALID 0x01 |
| #define V4L2_H264_DPB_ENTRY_FLAG_ACTIVE 0x02 |
| #define V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM 0x04 |
| #define V4L2_H264_DPB_ENTRY_FLAG_FIELD 0x08 |
| #define V4L2_H264_DPB_ENTRY_FLAG_BOTTOM_FIELD 0x10 |
| |
| struct v4l2_h264_dpb_entry { |
| __u64 reference_ts; |
| __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; |
| __u32 flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */ |
| }; |
| |
| #define V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC 0x01 |
| |
| struct v4l2_ctrl_h264_decode_params { |
| struct v4l2_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES]; |
| __u16 num_slices; |
| __u16 nal_ref_idc; |
| __s32 top_field_order_cnt; |
| __s32 bottom_field_order_cnt; |
| __u32 flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */ |
| }; |
| |
| #endif |
