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hevc/cabac: add new context for new syntax elements related to Rext(cherry picked from commit 6d71e2394f52679cfc8b86fb5880f89e6bd311d4)

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Mickaël Raulet 2014-07-13 10:38:13 +02:00 committed by Michael Niedermayer
parent 07b91b8d62
commit c4058b7288
2 changed files with 108 additions and 48 deletions
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8
libavcodec/hevc.h
View File

@ -61,7 +61,7 @@
#define MAX_QP 51 #define MAX_QP 51
#define DEFAULT_INTRA_TC_OFFSET 2 #define DEFAULT_INTRA_TC_OFFSET 2
#define HEVC_CONTEXTS 183 #define HEVC_CONTEXTS 199
#define MRG_MAX_NUM_CANDS 5 #define MRG_MAX_NUM_CANDS 5
@ -169,6 +169,8 @@ enum SyntaxElement {
CBF_LUMA, CBF_LUMA,
CBF_CB_CR, CBF_CB_CR,
TRANSFORM_SKIP_FLAG, TRANSFORM_SKIP_FLAG,
EXPLICIT_RDPCM_FLAG,
EXPLICIT_RDPCM_DIR_FLAG,
LAST_SIGNIFICANT_COEFF_X_PREFIX, LAST_SIGNIFICANT_COEFF_X_PREFIX,
LAST_SIGNIFICANT_COEFF_Y_PREFIX, LAST_SIGNIFICANT_COEFF_Y_PREFIX,
LAST_SIGNIFICANT_COEFF_X_SUFFIX, LAST_SIGNIFICANT_COEFF_X_SUFFIX,
@ -179,6 +181,10 @@ enum SyntaxElement {
COEFF_ABS_LEVEL_GREATER2_FLAG, COEFF_ABS_LEVEL_GREATER2_FLAG,
COEFF_ABS_LEVEL_REMAINING, COEFF_ABS_LEVEL_REMAINING,
COEFF_SIGN_FLAG, COEFF_SIGN_FLAG,
LOG2_RES_SCALE_ABS,
RES_SCALE_SIGN_FLAG,
CU_CHROMA_QP_OFFSET_FLAG,
CU_CHROMA_QP_OFFSET_IDX,
}; };
enum PartMode { enum PartMode {

148
libavcodec/hevc_cabac.c
View File

@ -66,65 +66,77 @@ av_unused static const int8_t num_bins_in_se[] = {
2, // cbf_luma 2, // cbf_luma
4, // cbf_cb, cbf_cr 4, // cbf_cb, cbf_cr
2, // transform_skip_flag[][] 2, // transform_skip_flag[][]
2, // explicit_rdpcm_flag[][]
2, // explicit_rdpcm_dir_flag[][]
18, // last_significant_coeff_x_prefix 18, // last_significant_coeff_x_prefix
18, // last_significant_coeff_y_prefix 18, // last_significant_coeff_y_prefix
0, // last_significant_coeff_x_suffix 0, // last_significant_coeff_x_suffix
0, // last_significant_coeff_y_suffix 0, // last_significant_coeff_y_suffix
4, // significant_coeff_group_flag 4, // significant_coeff_group_flag
42, // significant_coeff_flag 44, // significant_coeff_flag
24, // coeff_abs_level_greater1_flag 24, // coeff_abs_level_greater1_flag
6, // coeff_abs_level_greater2_flag 6, // coeff_abs_level_greater2_flag
0, // coeff_abs_level_remaining 0, // coeff_abs_level_remaining
0, // coeff_sign_flag 0, // coeff_sign_flag
8, // log2_res_scale_abs
2, // res_scale_sign_flag
1, // cu_chroma_qp_offset_flag
1, // cu_chroma_qp_offset_idx
}; };
/** /**
* Offset to ctxIdx 0 in init_values and states, indexed by SyntaxElement. * Offset to ctxIdx 0 in init_values and states, indexed by SyntaxElement.
*/ */
static const int elem_offset[sizeof(num_bins_in_se)] = { static const int elem_offset[sizeof(num_bins_in_se)] = {
0, 0, // sao_merge_flag
1, 1, // sao_type_idx
2, 2, // sao_eo_class
2, 2, // sao_band_position
2, 2, // sao_offset_abs
2, 2, // sao_offset_sign
2, 2, // end_of_slice_flag
2, 2, // split_coding_unit_flag
5, 5, // cu_transquant_bypass_flag
6, 6, // skip_flag
9, 9, // cu_qp_delta
12, 12, // pred_mode
13, 13, // part_mode
17, 17, // pcm_flag
17, 17, // prev_intra_luma_pred_mode
18, 18, // mpm_idx
18, 18, // rem_intra_luma_pred_mode
18, 18, // intra_chroma_pred_mode
20, 20, // merge_flag
21, 21, // merge_idx
22, 22, // inter_pred_idc
27, 27, // ref_idx_l0
29, 29, // ref_idx_l1
31, 31, // abs_mvd_greater0_flag
33, 33, // abs_mvd_greater1_flag
35, 35, // abs_mvd_minus2
35, 35, // mvd_sign_flag
35, 35, // mvp_lx_flag
36, 36, // no_residual_data_flag
37, 37, // split_transform_flag
40, 40, // cbf_luma
42, 42, // cbf_cb, cbf_cr
46, 46, // transform_skip_flag[][]
48, 48, // explicit_rdpcm_flag[][]
66, 50, // explicit_rdpcm_dir_flag[][]
84, 52, // last_significant_coeff_x_prefix
84, 70, // last_significant_coeff_y_prefix
84, 88, // last_significant_coeff_x_suffix
88, 88, // last_significant_coeff_y_suffix
130, 88, // significant_coeff_group_flag
154, 92, // significant_coeff_flag
160, 136, // coeff_abs_level_greater1_flag
160, 160, // coeff_abs_level_greater2_flag
166, // coeff_abs_level_remaining
166, // coeff_sign_flag
166, // log2_res_scale_abs
174, // res_scale_sign_flag
176, // cu_chroma_qp_offset_flag
177, // cu_chroma_qp_offset_idx
}; };
#define CNU 154 #define CNU 154
@ -178,6 +190,10 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
94, 138, 182, 154, 94, 138, 182, 154,
// transform_skip_flag // transform_skip_flag
139, 139, 139, 139,
// explicit_rdpcm_flag
139, 139,
// explicit_rdpcm_dir_flag
139, 139,
// last_significant_coeff_x_prefix // last_significant_coeff_x_prefix
110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111,
79, 108, 123, 63, 79, 108, 123, 63,
@ -190,11 +206,21 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153, 111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153,
125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 140, 125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 140,
139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111, 139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111,
141, 111,
// coeff_abs_level_greater1_flag // coeff_abs_level_greater1_flag
140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107, 140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107,
122, 152, 140, 179, 166, 182, 140, 227, 122, 197, 122, 152, 140, 179, 166, 182, 140, 227, 122, 197,
// coeff_abs_level_greater2_flag // coeff_abs_level_greater2_flag
138, 153, 136, 167, 152, 152, }, 138, 153, 136, 167, 152, 152,
// log2_res_scale_abs
154, 154, 154, 154, 154, 154, 154, 154,
// res_scale_sign_flag
154, 154,
// cu_chroma_qp_offset_flag
154,
// cu_chroma_qp_offset_idx
154,
},
{ // sao_merge_flag { // sao_merge_flag
153, 153,
// sao_type_idx // sao_type_idx
@ -241,6 +267,10 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
149, 107, 167, 154, 149, 107, 167, 154,
// transform_skip_flag // transform_skip_flag
139, 139, 139, 139,
// explicit_rdpcm_flag
139, 139,
// explicit_rdpcm_dir_flag
139, 139,
// last_significant_coeff_x_prefix // last_significant_coeff_x_prefix
125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95,
94, 108, 123, 108, 94, 108, 123, 108,
@ -253,11 +283,21 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153, 155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153,
154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170,
153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140, 153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140,
140, 140,
// coeff_abs_level_greater1_flag // coeff_abs_level_greater1_flag
154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121,
136, 137, 169, 194, 166, 167, 154, 167, 137, 182, 136, 137, 169, 194, 166, 167, 154, 167, 137, 182,
// coeff_abs_level_greater2_flag // coeff_abs_level_greater2_flag
107, 167, 91, 122, 107, 167, }, 107, 167, 91, 122, 107, 167,
// log2_res_scale_abs
154, 154, 154, 154, 154, 154, 154, 154,
// res_scale_sign_flag
154, 154,
// cu_chroma_qp_offset_flag
154,
// cu_chroma_qp_offset_idx
154,
},
{ // sao_merge_flag { // sao_merge_flag
153, 153,
// sao_type_idx // sao_type_idx
@ -304,6 +344,10 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
149, 92, 167, 154, 149, 92, 167, 154,
// transform_skip_flag // transform_skip_flag
139, 139, 139, 139,
// explicit_rdpcm_flag
139, 139,
// explicit_rdpcm_dir_flag
139, 139,
// last_significant_coeff_x_prefix // last_significant_coeff_x_prefix
125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111,
79, 108, 123, 93, 79, 108, 123, 93,
@ -316,11 +360,21 @@ static const uint8_t init_values[3][HEVC_CONTEXTS] = {
170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153, 170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153,
154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170,
153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140, 153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140,
140, 140,
// coeff_abs_level_greater1_flag // coeff_abs_level_greater1_flag
154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121,
136, 122, 169, 208, 166, 167, 154, 152, 167, 182, 136, 122, 169, 208, 166, 167, 154, 152, 167, 182,
// coeff_abs_level_greater2_flag // coeff_abs_level_greater2_flag
107, 167, 91, 107, 107, 167, }, 107, 167, 91, 107, 107, 167,
// log2_res_scale_abs
154, 154, 154, 154, 154, 154, 154, 154,
// res_scale_sign_flag
154, 154,
// cu_chroma_qp_offset_flag
154,
// cu_chroma_qp_offset_idx
154,
},
}; };
static const uint8_t scan_1x1[1] = { static const uint8_t scan_1x1[1] = {