include/media/hevc-ctrls.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * These are the HEVC state controls for use with stateless HEVC
   4  * codec drivers.
   5  *
   6  * It turns out that these structs are not stable yet and will undergo
   7  * more changes. So keep them private until they are stable and ready to
   8  * become part of the official public API.
   9  */
  10
  11 #ifndef _HEVC_CTRLS_H_
  12 #define _HEVC_CTRLS_H_
  13
  14 #include <linux/videodev2.h>
  15
  16 /* The pixel format isn't stable at the moment and will likely be renamed. */
  17 #define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
  18
  19 #define V4L2_CID_MPEG_VIDEO_HEVC_SPS            (V4L2_CID_CODEC_BASE + 1008)
  20 #define V4L2_CID_MPEG_VIDEO_HEVC_PPS            (V4L2_CID_CODEC_BASE + 1009)
  21 #define V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS   (V4L2_CID_CODEC_BASE + 1010)
  22 #define V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX (V4L2_CID_CODEC_BASE + 1011)
  23 #define V4L2_CID_MPEG_VIDEO_HEVC_DECODE_PARAMS  (V4L2_CID_CODEC_BASE + 1012)
  24 #define V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE    (V4L2_CID_CODEC_BASE + 1015)
  25 #define V4L2_CID_MPEG_VIDEO_HEVC_START_CODE     (V4L2_CID_CODEC_BASE + 1016)
  26
  27 /* enum v4l2_ctrl_type type values */
  28 #define V4L2_CTRL_TYPE_HEVC_SPS 0x0120
  29 #define V4L2_CTRL_TYPE_HEVC_PPS 0x0121
  30 #define V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS 0x0122
  31 #define V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX 0x0123
  32 #define V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS 0x0124
  33
  34 enum v4l2_mpeg_video_hevc_decode_mode {
  35         V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED,
  36         V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_FRAME_BASED,
  37 };
  38
  39 enum v4l2_mpeg_video_hevc_start_code {
  40         V4L2_MPEG_VIDEO_HEVC_START_CODE_NONE,
  41         V4L2_MPEG_VIDEO_HEVC_START_CODE_ANNEX_B,
  42 };
  43
  44 #define V4L2_HEVC_SLICE_TYPE_B  0
  45 #define V4L2_HEVC_SLICE_TYPE_P  1
  46 #define V4L2_HEVC_SLICE_TYPE_I  2
  47
  48 #define V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE                (1ULL << 0)
  49 #define V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED                 (1ULL << 1)
  50 #define V4L2_HEVC_SPS_FLAG_AMP_ENABLED                          (1ULL << 2)
  51 #define V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET               (1ULL << 3)
  52 #define V4L2_HEVC_SPS_FLAG_PCM_ENABLED                          (1ULL << 4)
  53 #define V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED             (1ULL << 5)
  54 #define V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT           (1ULL << 6)
  55 #define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED             (1ULL << 7)
  56 #define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED       (1ULL << 8)
  57
  58 /* The controls are not stable at the moment and will likely be reworked. */
  59 struct v4l2_ctrl_hevc_sps {
  60         /* ISO/IEC 23008-2, ITU-T Rec. H.265: Sequence parameter set */
  61         __u16   pic_width_in_luma_samples;
  62         __u16   pic_height_in_luma_samples;
  63         __u8    bit_depth_luma_minus8;
  64         __u8    bit_depth_chroma_minus8;
  65         __u8    log2_max_pic_order_cnt_lsb_minus4;
  66         __u8    sps_max_dec_pic_buffering_minus1;
  67         __u8    sps_max_num_reorder_pics;
  68         __u8    sps_max_latency_increase_plus1;
  69         __u8    log2_min_luma_coding_block_size_minus3;
  70         __u8    log2_diff_max_min_luma_coding_block_size;
  71         __u8    log2_min_luma_transform_block_size_minus2;
  72         __u8    log2_diff_max_min_luma_transform_block_size;
  73         __u8    max_transform_hierarchy_depth_inter;
  74         __u8    max_transform_hierarchy_depth_intra;
  75         __u8    pcm_sample_bit_depth_luma_minus1;
  76         __u8    pcm_sample_bit_depth_chroma_minus1;
  77         __u8    log2_min_pcm_luma_coding_block_size_minus3;
  78         __u8    log2_diff_max_min_pcm_luma_coding_block_size;
  79         __u8    num_short_term_ref_pic_sets;
  80         __u8    num_long_term_ref_pics_sps;
  81         __u8    chroma_format_idc;
  82         __u8    sps_max_sub_layers_minus1;
  83
  84         __u64   flags;
  85 };
  86
  87 #define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED      (1ULL << 0)
  88 #define V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT                  (1ULL << 1)
  89 #define V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED             (1ULL << 2)
  90 #define V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT                   (1ULL << 3)
  91 #define V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED               (1ULL << 4)
  92 #define V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED               (1ULL << 5)
  93 #define V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED                  (1ULL << 6)
  94 #define V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT  (1ULL << 7)
  95 #define V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED                        (1ULL << 8)
  96 #define V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED                      (1ULL << 9)
  97 #define V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED            (1ULL << 10)
  98 #define V4L2_HEVC_PPS_FLAG_TILES_ENABLED                        (1ULL << 11)
  99 #define V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED          (1ULL << 12)
 100 #define V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED     (1ULL << 13)
 101 #define V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 14)
 102 #define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED   (1ULL << 15)
 103 #define V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER        (1ULL << 16)
 104 #define V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT           (1ULL << 17)
 105 #define V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT (1ULL << 18)
 106 #define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT    (1ULL << 19)
 107 #define V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING                      (1ULL << 20)
 108
 109 struct v4l2_ctrl_hevc_pps {
 110         /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture parameter set */
 111         __u8    num_extra_slice_header_bits;
 112         __u8    num_ref_idx_l0_default_active_minus1;
 113         __u8    num_ref_idx_l1_default_active_minus1;
 114         __s8    init_qp_minus26;
 115         __u8    diff_cu_qp_delta_depth;
 116         __s8    pps_cb_qp_offset;
 117         __s8    pps_cr_qp_offset;
 118         __u8    num_tile_columns_minus1;
 119         __u8    num_tile_rows_minus1;
 120         __u8    column_width_minus1[20];
 121         __u8    row_height_minus1[22];
 122         __s8    pps_beta_offset_div2;
 123         __s8    pps_tc_offset_div2;
 124         __u8    log2_parallel_merge_level_minus2;
 125
 126         __u8    padding[4];
 127         __u64   flags;
 128 };
 129
 130 #define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE  0x01
 131 #define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER   0x02
 132 #define V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR         0x03
 133
 134 #define V4L2_HEVC_DPB_ENTRIES_NUM_MAX           16
 135
 136 struct v4l2_hevc_dpb_entry {
 137         __u64   timestamp;
 138         __u8    rps;
 139         __u8    field_pic;
 140         __u16   pic_order_cnt[2];
 141         __u8    padding[2];
 142 };
 143
 144 struct v4l2_hevc_pred_weight_table {
 145         __s8    delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 146         __s8    luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 147         __s8    delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
 148         __s8    chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
 149
 150         __s8    delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 151         __s8    luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 152         __s8    delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
 153         __s8    chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
 154
 155         __u8    padding[6];
 156
 157         __u8    luma_log2_weight_denom;
 158         __s8    delta_chroma_log2_weight_denom;
 159 };
 160
 161 #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA              (1ULL << 0)
 162 #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA            (1ULL << 1)
 163 #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED  (1ULL << 2)
 164 #define V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO                 (1ULL << 3)
 165 #define V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT                  (1ULL << 4)
 166 #define V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0          (1ULL << 5)
 167 #define V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV              (1ULL << 6)
 168 #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED (1ULL << 7)
 169 #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8)
 170 #define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT     (1ULL << 9)
 171
 172 struct v4l2_ctrl_hevc_slice_params {
 173         __u32   bit_size;
 174         __u32   data_bit_offset;
 175
 176         /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
 177         __u8    nal_unit_type;
 178         __u8    nuh_temporal_id_plus1;
 179
 180         /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
 181         __u8    slice_type;
 182         __u8    colour_plane_id;
 183         __u16   slice_pic_order_cnt;
 184         __u8    num_ref_idx_l0_active_minus1;
 185         __u8    num_ref_idx_l1_active_minus1;
 186         __u8    collocated_ref_idx;
 187         __u8    five_minus_max_num_merge_cand;
 188         __s8    slice_qp_delta;
 189         __s8    slice_cb_qp_offset;
 190         __s8    slice_cr_qp_offset;
 191         __s8    slice_act_y_qp_offset;
 192         __s8    slice_act_cb_qp_offset;
 193         __s8    slice_act_cr_qp_offset;
 194         __s8    slice_beta_offset_div2;
 195         __s8    slice_tc_offset_div2;
 196
 197         /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */
 198         __u8    pic_struct;
 199
 200         /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
 201         __u32   slice_segment_addr;
 202         __u8    ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 203         __u8    ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 204
 205         __u8    padding;
 206
 207         /* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
 208         struct v4l2_hevc_pred_weight_table pred_weight_table;
 209
 210         __u64   flags;
 211 };
 212
 213 #define V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC            0x1
 214 #define V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC             0x2
 215 #define V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR  0x4
 216
 217 struct v4l2_ctrl_hevc_decode_params {
 218         __s32   pic_order_cnt_val;
 219         __u8    num_active_dpb_entries;
 220         struct  v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 221         __u8    num_poc_st_curr_before;
 222         __u8    num_poc_st_curr_after;
 223         __u8    num_poc_lt_curr;
 224         __u8    poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 225         __u8    poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 226         __u8    poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
 227         __u64   flags;
 228 };
 229
 230 struct v4l2_ctrl_hevc_scaling_matrix {
 231         __u8    scaling_list_4x4[6][16];
 232         __u8    scaling_list_8x8[6][64];
 233         __u8    scaling_list_16x16[6][64];
 234         __u8    scaling_list_32x32[2][64];
 235         __u8    scaling_list_dc_coef_16x16[6];
 236         __u8    scaling_list_dc_coef_32x32[2];
 237 };
 238
 239 /*  MPEG-class control IDs specific to the Hantro driver as defined by V4L2 */
 240 #define V4L2_CID_CODEC_HANTRO_BASE                              (V4L2_CTRL_CLASS_CODEC | 0x1200)
 241 /*
 242  * V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP -
 243  * the number of data (in bits) to skip in the
 244  * slice segment header.
 245  * If non-IDR, the bits to be skipped go from syntax element "pic_output_flag"
 246  * to before syntax element "slice_temporal_mvp_enabled_flag".
 247  * If IDR, the skipped bits are just "pic_output_flag"
 248  * (separate_colour_plane_flag is not supported).
 249  */
 250 #define V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP  (V4L2_CID_CODEC_HANTRO_BASE + 0)
 251
 252 #endif