| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| |
| #include "vp8/common/type_aliases.h" |
| #include "vp8/common/blockd.h" |
| #include "onyxd_int.h" |
| #include "vpx_mem/vpx_mem.h" |
| #include "vpx_ports/mem.h" |
| #include "detokenize.h" |
| |
| #include "vp8/common/seg_common.h" |
| |
| #define BOOL_DATA UINT8 |
| |
| #define OCB_X PREV_COEF_CONTEXTS * ENTROPY_NODES |
| |
| DECLARE_ALIGNED(16, int, coef_bands_x[16]) = { |
| 0 * OCB_X, 1 * OCB_X, 2 * OCB_X, 3 * OCB_X, |
| 6 * OCB_X, 4 * OCB_X, 5 * OCB_X, 6 * OCB_X, |
| 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, |
| 6 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X |
| }; |
| DECLARE_ALIGNED(16, int, coef_bands_x_8x8[64]) = { |
| 0 * OCB_X, 1 * OCB_X, 2 * OCB_X, 3 * OCB_X, 5 * OCB_X, 4 * OCB_X, 4 * OCB_X, 5 * OCB_X, |
| 5 * OCB_X, 3 * OCB_X, 6 * OCB_X, 3 * OCB_X, 5 * OCB_X, 4 * OCB_X, 6 * OCB_X, 6 * OCB_X, |
| 6 * OCB_X, 5 * OCB_X, 5 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, |
| 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, |
| 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 6 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, |
| 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, |
| 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, |
| 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, 7 * OCB_X, |
| }; |
| |
| #define EOB_CONTEXT_NODE 0 |
| #define ZERO_CONTEXT_NODE 1 |
| #define ONE_CONTEXT_NODE 2 |
| #define LOW_VAL_CONTEXT_NODE 3 |
| #define TWO_CONTEXT_NODE 4 |
| #define THREE_CONTEXT_NODE 5 |
| #define HIGH_LOW_CONTEXT_NODE 6 |
| #define CAT_ONE_CONTEXT_NODE 7 |
| #define CAT_THREEFOUR_CONTEXT_NODE 8 |
| #define CAT_THREE_CONTEXT_NODE 9 |
| #define CAT_FIVE_CONTEXT_NODE 10 |
| |
| #define CAT1_MIN_VAL 5 |
| #define CAT2_MIN_VAL 7 |
| #define CAT3_MIN_VAL 11 |
| #define CAT4_MIN_VAL 19 |
| #define CAT5_MIN_VAL 35 |
| #define CAT6_MIN_VAL 67 |
| #define CAT1_PROB0 159 |
| #define CAT2_PROB0 145 |
| #define CAT2_PROB1 165 |
| |
| #define CAT3_PROB0 140 |
| #define CAT3_PROB1 148 |
| #define CAT3_PROB2 173 |
| |
| #define CAT4_PROB0 135 |
| #define CAT4_PROB1 140 |
| #define CAT4_PROB2 155 |
| #define CAT4_PROB3 176 |
| |
| #define CAT5_PROB0 130 |
| #define CAT5_PROB1 134 |
| #define CAT5_PROB2 141 |
| #define CAT5_PROB3 157 |
| #define CAT5_PROB4 180 |
| |
| static const unsigned char cat6_prob[14] = |
| { 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 }; |
| |
| void vp8_reset_mb_tokens_context(MACROBLOCKD *x) { |
| /* Clear entropy contexts for Y2 blocks */ |
| if (x->mode_info_context->mbmi.mode != B_PRED && |
| x->mode_info_context->mbmi.mode != I8X8_PRED && |
| x->mode_info_context->mbmi.mode != SPLITMV) { |
| vpx_memset(x->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); |
| vpx_memset(x->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); |
| } else { |
| vpx_memset(x->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1); |
| vpx_memset(x->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1); |
| } |
| } |
| |
| DECLARE_ALIGNED(16, extern const unsigned char, vp8_norm[256]); |
| |
| // #define PREV_CONTEXT_INC(val) (2+((val)>2)) |
| // #define PREV_CONTEXT_INC(val) (vp8_prev_token_class[(val)]) |
| #if CONFIG_EXPANDED_COEF_CONTEXT |
| #define PREV_CONTEXT_INC(val) (vp8_prev_token_class[(val)>10?10:(val)]) |
| #else |
| #define PREV_CONTEXT_INC(val) (2) |
| #endif |
| |
| |
| #if CONFIG_ADAPTIVE_ENTROPY |
| int get_token(int v) { |
| if (v < 0) v = -v; |
| if (v == 0) return ZERO_TOKEN; |
| else if (v == 1) return ONE_TOKEN; |
| else if (v == 2) return TWO_TOKEN; |
| else if (v == 3) return THREE_TOKEN; |
| else if (v == 4) return FOUR_TOKEN; |
| else if (v <= 6) return DCT_VAL_CATEGORY1; |
| else if (v <= 10) return DCT_VAL_CATEGORY2; |
| else if (v <= 18) return DCT_VAL_CATEGORY3; |
| else if (v <= 34) return DCT_VAL_CATEGORY4; |
| else if (v <= 66) return DCT_VAL_CATEGORY5; |
| else return DCT_VAL_CATEGORY6; |
| } |
| |
| #if CONFIG_HYBRIDTRANSFORM |
| void static count_tokens_adaptive_scan(const MACROBLOCKD *xd, INT16 *qcoeff_ptr, |
| int block, int type, ENTROPY_CONTEXT *a, |
| ENTROPY_CONTEXT *l, int eob, int seg_eob, |
| FRAME_CONTEXT *fc) { |
| int c, pt, token, band; |
| const int *scan; |
| |
| int QIndex = xd->q_index; |
| int active_ht = (QIndex < ACTIVE_HT) && |
| (xd->mode_info_context->mbmi.mode == B_PRED); |
| |
| if(active_ht) { |
| switch(xd->block[block].bmi.as_mode.tx_type) { |
| case ADST_DCT : |
| scan = vp8_row_scan; |
| break; |
| |
| case DCT_ADST : |
| scan = vp8_col_scan; |
| break; |
| |
| default : |
| scan = vp8_default_zig_zag1d; |
| break; |
| } |
| } else { |
| scan = vp8_default_zig_zag1d; |
| } |
| |
| VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l); |
| for (c = !type; c < eob; ++c) { |
| int rc = scan[c]; |
| int v = qcoeff_ptr[rc]; |
| band = vp8_coef_bands[c]; |
| token = get_token(v); |
| fc->coef_counts[type][band][pt][token]++; |
| pt = vp8_prev_token_class[token]; |
| } |
| |
| if (eob < seg_eob) { |
| band = vp8_coef_bands[c]; |
| fc->coef_counts[type][band][pt][DCT_EOB_TOKEN]++; |
| } |
| } |
| #endif |
| |
| void static count_tokens(INT16 *qcoeff_ptr, int block, int type, |
| ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, |
| int eob, int seg_eob, FRAME_CONTEXT *const fc) { |
| int c, pt, token, band; |
| VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l); |
| for (c = !type; c < eob; ++c) { |
| int rc = vp8_default_zig_zag1d[c]; |
| int v = qcoeff_ptr[rc]; |
| band = vp8_coef_bands[c]; |
| token = get_token(v); |
| fc->coef_counts[type][band][pt][token]++; |
| pt = vp8_prev_token_class[token]; |
| } |
| if (eob < seg_eob) { |
| band = vp8_coef_bands[c]; |
| fc->coef_counts[type][band][pt][DCT_EOB_TOKEN]++; |
| } |
| } |
| |
| void static count_tokens_8x8(INT16 *qcoeff_ptr, int block, int type, |
| ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, |
| int eob, int seg_eob, FRAME_CONTEXT *fc) { |
| int c, pt, token, band; |
| VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l); |
| for (c = !type; c < eob; ++c) { |
| int rc = (type == 1 ? vp8_default_zig_zag1d[c] : vp8_default_zig_zag1d_8x8[c]); |
| int v = qcoeff_ptr[rc]; |
| band = (type == 1 ? vp8_coef_bands[c] : vp8_coef_bands_8x8[c]); |
| token = get_token(v); |
| fc->coef_counts_8x8[type][band][pt][token]++; |
| pt = vp8_prev_token_class[token]; |
| } |
| if (eob < seg_eob) { |
| band = (type == 1 ? vp8_coef_bands[c] : vp8_coef_bands_8x8[c]); |
| fc->coef_counts_8x8[type][band][pt][DCT_EOB_TOKEN]++; |
| } |
| } |
| #endif |
| |
| |
| static int vp8_get_signed(BOOL_DECODER *br, int value_to_sign) { |
| const int split = (br->range + 1) >> 1; |
| const VP8_BD_VALUE bigsplit = (VP8_BD_VALUE)split << (VP8_BD_VALUE_SIZE - 8); |
| int v; |
| |
| if (br->count < 0) |
| vp8dx_bool_decoder_fill(br); |
| |
| if (br->value < bigsplit) { |
| br->range = split; |
| v = value_to_sign; |
| } else { |
| br->range = br->range - split; |
| br->value = br->value - bigsplit; |
| v = -value_to_sign; |
| } |
| br->range += br->range; |
| br->value += br->value; |
| --br->count; |
| |
| return v; |
| } |
| |
| #define WRITE_COEF_CONTINUE(val) \ |
| { \ |
| Prob = coef_probs + (ENTROPY_NODES*PREV_CONTEXT_INC(val));\ |
| qcoeff_ptr[scan[c]] = (INT16) vp8_get_signed(br, val); \ |
| c++; \ |
| continue; \ |
| } |
| |
| #define ADJUST_COEF(prob, bits_count) \ |
| do { \ |
| if (vp8_read(br, prob)) \ |
| val += (UINT16)(1 << bits_count);\ |
| } while (0); |
| |
| static int vp8_decode_coefs(VP8D_COMP *dx, const MACROBLOCKD *xd, |
| ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int type, |
| int seg_eob, INT16 *qcoeff_ptr, int i, |
| const int *const scan, int block_type, |
| const int *coef_bands) { |
| FRAME_CONTEXT *const fc = &dx->common.fc; |
| BOOL_DECODER *br = xd->current_bc; |
| int tmp, c = (type == 0); |
| const vp8_prob *Prob; |
| const vp8_prob *coef_probs = |
| (block_type == TX_4X4) ? fc->coef_probs[type][0][0] |
| : fc->coef_probs_8x8[type][0][0]; |
| |
| VP8_COMBINEENTROPYCONTEXTS(tmp, *a, *l); |
| Prob = coef_probs + tmp * ENTROPY_NODES; |
| |
| while (1) { |
| int val; |
| const uint8_t *cat6 = cat6_prob; |
| if (c == seg_eob) break; |
| Prob += coef_bands[c]; |
| if (!vp8_read(br, Prob[EOB_CONTEXT_NODE])) |
| break; |
| SKIP_START: |
| if (c == seg_eob) break; |
| if (!vp8_read(br, Prob[ZERO_CONTEXT_NODE])) { |
| ++c; |
| Prob = coef_probs + coef_bands[c]; |
| goto SKIP_START; |
| } |
| // ONE_CONTEXT_NODE_0_ |
| if (!vp8_read(br, Prob[ONE_CONTEXT_NODE])) { |
| Prob = coef_probs + ENTROPY_NODES; |
| qcoeff_ptr[scan[c]] = (INT16) vp8_get_signed(br, 1); |
| ++c; |
| continue; |
| } |
| // LOW_VAL_CONTEXT_NODE_0_ |
| if (!vp8_read(br, Prob[LOW_VAL_CONTEXT_NODE])) { |
| if (!vp8_read(br, Prob[TWO_CONTEXT_NODE])) { |
| WRITE_COEF_CONTINUE(2); |
| } |
| if (!vp8_read(br, Prob[THREE_CONTEXT_NODE])) { |
| WRITE_COEF_CONTINUE(3); |
| } |
| WRITE_COEF_CONTINUE(4); |
| } |
| // HIGH_LOW_CONTEXT_NODE_0_ |
| if (!vp8_read(br, Prob[HIGH_LOW_CONTEXT_NODE])) { |
| if (!vp8_read(br, Prob[CAT_ONE_CONTEXT_NODE])) { |
| val = CAT1_MIN_VAL; |
| ADJUST_COEF(CAT1_PROB0, 0); |
| WRITE_COEF_CONTINUE(val); |
| } |
| val = CAT2_MIN_VAL; |
| ADJUST_COEF(CAT2_PROB1, 1); |
| ADJUST_COEF(CAT2_PROB0, 0); |
| WRITE_COEF_CONTINUE(val); |
| } |
| // CAT_THREEFOUR_CONTEXT_NODE_0_ |
| if (!vp8_read(br, Prob[CAT_THREEFOUR_CONTEXT_NODE])) { |
| if (!vp8_read(br, Prob[CAT_THREE_CONTEXT_NODE])) { |
| val = CAT3_MIN_VAL; |
| ADJUST_COEF(CAT3_PROB2, 2); |
| ADJUST_COEF(CAT3_PROB1, 1); |
| ADJUST_COEF(CAT3_PROB0, 0); |
| WRITE_COEF_CONTINUE(val); |
| } |
| val = CAT4_MIN_VAL; |
| ADJUST_COEF(CAT4_PROB3, 3); |
| ADJUST_COEF(CAT4_PROB2, 2); |
| ADJUST_COEF(CAT4_PROB1, 1); |
| ADJUST_COEF(CAT4_PROB0, 0); |
| WRITE_COEF_CONTINUE(val); |
| } |
| // CAT_FIVE_CONTEXT_NODE_0_: |
| if (!vp8_read(br, Prob[CAT_FIVE_CONTEXT_NODE])) { |
| val = CAT5_MIN_VAL; |
| ADJUST_COEF(CAT5_PROB4, 4); |
| ADJUST_COEF(CAT5_PROB3, 3); |
| ADJUST_COEF(CAT5_PROB2, 2); |
| ADJUST_COEF(CAT5_PROB1, 1); |
| ADJUST_COEF(CAT5_PROB0, 0); |
| WRITE_COEF_CONTINUE(val); |
| } |
| val = 0; |
| while (*cat6) { |
| val = (val << 1) | vp8_read(br, *cat6++); |
| } |
| val += CAT6_MIN_VAL; |
| WRITE_COEF_CONTINUE(val); |
| } |
| #if CONFIG_ADAPTIVE_ENTROPY |
| |
| if (block_type == TX_4X4) |
| #if CONFIG_HYBRIDTRANSFORM |
| count_tokens_adaptive_scan(xd, qcoeff_ptr, i, type, a, l, c, seg_eob, fc); |
| #else |
| count_tokens(qcoeff_ptr, i, type, a, l, c, seg_eob, fc); |
| #endif |
| |
| else |
| count_tokens_8x8(qcoeff_ptr, i, type, a, l, c, seg_eob, fc); |
| #endif |
| return c; |
| } |
| |
| int vp8_decode_mb_tokens_8x8(VP8D_COMP *pbi, MACROBLOCKD *xd) { |
| ENTROPY_CONTEXT *const A = (ENTROPY_CONTEXT *)xd->above_context; |
| ENTROPY_CONTEXT *const L = (ENTROPY_CONTEXT *)xd->left_context; |
| |
| char *const eobs = xd->eobs; |
| int c, i, type, eobtotal = 0, seg_eob; |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| const int seg_active = segfeature_active(xd, segment_id, SEG_LVL_EOB); |
| INT16 *qcoeff_ptr = &xd->qcoeff[0]; |
| if (xd->mode_info_context->mbmi.mode != B_PRED && |
| xd->mode_info_context->mbmi.mode != SPLITMV) { |
| ENTROPY_CONTEXT *const a = A + vp8_block2above_8x8[24]; |
| ENTROPY_CONTEXT *const l = L + vp8_block2left_8x8[24]; |
| const int *const scan = vp8_default_zig_zag1d; |
| type = PLANE_TYPE_Y2; |
| |
| if (seg_active) |
| seg_eob = get_segdata(xd, segment_id, SEG_LVL_EOB); |
| else |
| seg_eob = 4; |
| c = vp8_decode_coefs(pbi, xd, a, l, type, seg_eob, qcoeff_ptr + 24 * 16, |
| 24, scan, TX_8X8, coef_bands_x); |
| a[0] = l[0] = ((eobs[24] = c) != !type); |
| |
| eobtotal += c - 4; |
| |
| type = PLANE_TYPE_Y_NO_DC; |
| } else |
| type = PLANE_TYPE_Y_WITH_DC; |
| |
| if (seg_active) |
| seg_eob = get_segdata(xd, segment_id, SEG_LVL_EOB); |
| else |
| seg_eob = 64; |
| for (i = 0; i < 24; i += 4) { |
| ENTROPY_CONTEXT *const a = A + vp8_block2above_8x8[i]; |
| ENTROPY_CONTEXT *const l = L + vp8_block2left_8x8[i]; |
| const int *const scan = vp8_default_zig_zag1d_8x8; |
| if (i == 16) |
| type = PLANE_TYPE_UV; |
| |
| c = vp8_decode_coefs(pbi, xd, a, l, type, seg_eob, qcoeff_ptr, |
| i, scan, TX_8X8, coef_bands_x_8x8); |
| a[0] = l[0] = ((eobs[i] = c) != !type); |
| a[1] = a[0]; |
| l[1] = l[0]; |
| |
| eobtotal += c; |
| qcoeff_ptr += 64; |
| } |
| |
| return eobtotal; |
| } |
| |
| |
| int vp8_decode_mb_tokens(VP8D_COMP *dx, MACROBLOCKD *xd) { |
| ENTROPY_CONTEXT *const A = (ENTROPY_CONTEXT *)xd->above_context; |
| ENTROPY_CONTEXT *const L = (ENTROPY_CONTEXT *)xd->left_context; |
| |
| char *const eobs = xd->eobs; |
| #if CONFIG_HYBRIDTRANSFORM |
| const int *scan = vp8_default_zig_zag1d; |
| int QIndex = xd->q_index; |
| int active_ht = (QIndex < ACTIVE_HT) && |
| (xd->mode_info_context->mbmi.mode == B_PRED); |
| #else |
| const int *const scan = vp8_default_zig_zag1d; |
| #endif |
| |
| int c, i, type, eobtotal = 0, seg_eob = 16; |
| INT16 *qcoeff_ptr = &xd->qcoeff[0]; |
| |
| int segment_id = xd->mode_info_context->mbmi.segment_id; |
| if (segfeature_active(xd, segment_id, SEG_LVL_EOB)) |
| seg_eob = get_segdata(xd, segment_id, SEG_LVL_EOB); |
| |
| if (xd->mode_info_context->mbmi.mode != B_PRED && |
| xd->mode_info_context->mbmi.mode != I8X8_PRED && |
| xd->mode_info_context->mbmi.mode != SPLITMV) { |
| ENTROPY_CONTEXT *const a = A + vp8_block2above[24]; |
| ENTROPY_CONTEXT *const l = L + vp8_block2left[24]; |
| type = PLANE_TYPE_Y2; |
| |
| c = vp8_decode_coefs(dx, xd, a, l, type, seg_eob, qcoeff_ptr + 24 * 16, 24, |
| scan, TX_4X4, coef_bands_x); |
| a[0] = l[0] = ((eobs[24] = c) != !type); |
| |
| eobtotal += c - 16; |
| |
| type = PLANE_TYPE_Y_NO_DC; |
| } else { |
| type = PLANE_TYPE_Y_WITH_DC; |
| } |
| |
| for (i = 0; i < 24; ++i) { |
| ENTROPY_CONTEXT *const a = A + vp8_block2above[i]; |
| ENTROPY_CONTEXT *const l = L + vp8_block2left[i]; |
| if (i == 16) |
| type = PLANE_TYPE_UV; |
| |
| #if CONFIG_HYBRIDTRANSFORM |
| if (type == PLANE_TYPE_Y_WITH_DC && |
| xd->mode_info_context->mbmi.mode == B_PRED && |
| active_ht) { |
| BLOCKD *b = &xd->block[i]; |
| switch(b->bmi.as_mode.first) { |
| case B_TM_PRED : |
| case B_RD_PRED : |
| b->bmi.as_mode.tx_type = ADST_ADST; |
| scan = vp8_default_zig_zag1d; |
| break; |
| |
| case B_VE_PRED : |
| case B_VR_PRED : |
| b->bmi.as_mode.tx_type = ADST_DCT; |
| scan = vp8_row_scan; |
| break ; |
| |
| case B_HE_PRED : |
| case B_HD_PRED : |
| case B_HU_PRED : |
| b->bmi.as_mode.tx_type = DCT_ADST; |
| scan = vp8_col_scan; |
| break; |
| |
| default : |
| b->bmi.as_mode.tx_type = DCT_DCT; |
| scan = vp8_default_zig_zag1d; |
| break; |
| } |
| } |
| if (type == PLANE_TYPE_UV) { |
| scan = vp8_default_zig_zag1d; |
| } |
| #endif |
| c = vp8_decode_coefs(dx, xd, a, l, type, seg_eob, qcoeff_ptr, |
| i, scan, TX_4X4, coef_bands_x); |
| a[0] = l[0] = ((eobs[i] = c) != !type); |
| |
| eobtotal += c; |
| qcoeff_ptr += 16; |
| } |
| |
| return eobtotal; |
| } |
