@ -74,19 +74,60 @@ enum HEVCSliceType {
HEVC_SLICE_I = 2 ,
} ;
/**
* 7.4 .2 .1
*/
# define HEVC_MAX_SUB_LAYERS 7
# define HEVC_MAX_VPS_COUNT 16
# define HEVC_MAX_SPS_COUNT 32
# define HEVC_MAX_PPS_COUNT 256
# define HEVC_MAX_SHORT_TERM_RPS_COUNT 64
# define HEVC_MAX_CU_SIZE 128
enum {
// 7.4.3.1: vps_max_layers_minus1 is in [0, 62].
HEVC_MAX_LAYERS = 63 ,
// 7.4.3.1: vps_max_sub_layers_minus1 is in [0, 6].
HEVC_MAX_SUB_LAYERS = 7 ,
// 7.4.3.1: vps_num_layer_sets_minus1 is in [0, 1023].
HEVC_MAX_LAYER_SETS = 1024 ,
// 7.4.2.1: vps_video_parameter_set_id is u(4).
HEVC_MAX_VPS_COUNT = 16 ,
// 7.4.3.2.1: sps_seq_parameter_set_id is in [0, 15].
HEVC_MAX_SPS_COUNT = 16 ,
// 7.4.3.3.1: pps_pic_parameter_set_id is in [0, 63].
HEVC_MAX_PPS_COUNT = 64 ,
// A.4.2: MaxDpbSize is bounded above by 16.
HEVC_MAX_DPB_SIZE = 16 ,
// 7.4.3.1: vps_max_dec_pic_buffering_minus1[i] is in [0, MaxDpbSize - 1].
HEVC_MAX_REFS = HEVC_MAX_DPB_SIZE ,
// 7.4.3.2.1: num_short_term_ref_pic_sets is in [0, 64].
HEVC_MAX_SHORT_TERM_REF_PIC_SETS = 64 ,
// 7.4.3.2.1: num_long_term_ref_pics_sps is in [0, 32].
HEVC_MAX_LONG_TERM_REF_PICS = 32 ,
# define HEVC_MAX_REFS 16
# define HEVC_MAX_DPB_SIZE 16 // A.4.1
// A.3: all profiles require that CtbLog2SizeY is in [4, 6].
HEVC_MIN_LOG2_CTB_SIZE = 4 ,
HEVC_MAX_LOG2_CTB_SIZE = 6 ,
// E.3.2: cpb_cnt_minus1[i] is in [0, 31].
HEVC_MAX_CPB_CNT = 32 ,
// A.4.1: in table A.6 the highest level allows a MaxLumaPs of 35 651 584.
HEVC_MAX_LUMA_PS = 35651584 ,
// A.4.1: pic_width_in_luma_samples and pic_height_in_luma_samples are
// constrained to be not greater than sqrt(MaxLumaPs * 8). Hence height/
// width are bounded above by sqrt(8 * 35651584) = 16888.2 samples.
HEVC_MAX_WIDTH = 16888 ,
HEVC_MAX_HEIGHT = 16888 ,
// A.4.1: table A.6 allows at most 22 tile rows for any level.
HEVC_MAX_TILE_ROWS = 22 ,
// A.4.1: table A.6 allows at most 20 tile columns for any level.
HEVC_MAX_TILE_COLUMNS = 20 ,
// 7.4.7.1: in the worst case (tiles_enabled_flag and
// entropy_coding_sync_enabled_flag are both set), entry points can be
// placed at the beginning of every Ctb row in every tile, giving an
// upper bound of (num_tile_columns_minus1 + 1) * PicHeightInCtbsY - 1.
// Only a stream with very high resolution and perverse parameters could
// get near that, though, so set a lower limit here with the maximum
// possible value for 4K video (at most 135 16x16 Ctb rows).
HEVC_MAX_ENTRY_POINT_OFFSETS = HEVC_MAX_TILE_COLUMNS * 135 ,
} ;
# define HEVC_MAX_LOG2_CTB_SIZE 6
# endif /* AVCODEC_HEVC_H */
Mark Thompson
8 years ago