| /* |
| * 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 "vp9/common/vp9_blockd.h" |
| #include "vp9/decoder/vp9_onyxd_int.h" |
| #include "vpx_mem/vpx_mem.h" |
| #include "vpx_ports/mem.h" |
| #include "vp9/decoder/vp9_detokenize.h" |
| #include "vp9/common/vp9_seg_common.h" |
| |
| #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 vp9_prob cat6_prob[15] = { |
| 254, 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 |
| }; |
| |
| DECLARE_ALIGNED(16, extern const uint8_t, vp9_norm[256]); |
| |
| static int get_signed(BOOL_DECODER *br, int value_to_sign) { |
| return decode_bool(br, 128) ? -value_to_sign : value_to_sign; |
| } |
| |
| #define INCREMENT_COUNT(token) \ |
| do { \ |
| coef_counts[type][ref][get_coef_band(txfm_size, c)][pt][token]++; \ |
| pt = vp9_get_coef_context(&recent_energy, token); \ |
| } while (0) |
| |
| #if CONFIG_CODE_NONZEROCOUNT |
| #define WRITE_COEF_CONTINUE(val, token) \ |
| { \ |
| qcoeff_ptr[scan[c]] = (int16_t) get_signed(br, val); \ |
| INCREMENT_COUNT(token); \ |
| c++; \ |
| nzc++; \ |
| continue; \ |
| } |
| #else |
| #define WRITE_COEF_CONTINUE(val, token) \ |
| { \ |
| qcoeff_ptr[scan[c]] = (int16_t) get_signed(br, val); \ |
| INCREMENT_COUNT(token); \ |
| c++; \ |
| continue; \ |
| } |
| #endif // CONFIG_CODE_NONZEROCOUNT |
| |
| #define ADJUST_COEF(prob, bits_count) \ |
| do { \ |
| if (vp9_read(br, prob)) \ |
| val += (uint16_t)(1 << bits_count);\ |
| } while (0); |
| |
| static int decode_coefs(VP9D_COMP *dx, const MACROBLOCKD *xd, |
| BOOL_DECODER* const br, int block_idx, |
| PLANE_TYPE type, int seg_eob, int16_t *qcoeff_ptr, |
| TX_SIZE txfm_size) { |
| ENTROPY_CONTEXT* const A0 = (ENTROPY_CONTEXT *) xd->above_context; |
| ENTROPY_CONTEXT* const L0 = (ENTROPY_CONTEXT *) xd->left_context; |
| int aidx, lidx; |
| ENTROPY_CONTEXT above_ec, left_ec; |
| FRAME_CONTEXT *const fc = &dx->common.fc; |
| int recent_energy = 0; |
| int pt, c = 0; |
| vp9_coeff_probs *coef_probs; |
| vp9_prob *prob; |
| vp9_coeff_count *coef_counts; |
| const int ref = xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME; |
| #if CONFIG_CODE_NONZEROCOUNT |
| uint16_t nzc = 0; |
| uint16_t nzc_expected = xd->mode_info_context->mbmi.nzcs[block_idx]; |
| #endif |
| const int *scan; |
| |
| if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB64X64) { |
| aidx = vp9_block2above_sb64[txfm_size][block_idx]; |
| lidx = vp9_block2left_sb64[txfm_size][block_idx]; |
| } else if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB32X32) { |
| aidx = vp9_block2above_sb[txfm_size][block_idx]; |
| lidx = vp9_block2left_sb[txfm_size][block_idx]; |
| } else { |
| aidx = vp9_block2above[txfm_size][block_idx]; |
| lidx = vp9_block2left[txfm_size][block_idx]; |
| } |
| |
| switch (txfm_size) { |
| default: |
| case TX_4X4: { |
| const TX_TYPE tx_type = get_tx_type_4x4(xd, block_idx); |
| switch (tx_type) { |
| default: |
| scan = vp9_default_zig_zag1d_4x4; |
| break; |
| case ADST_DCT: |
| scan = vp9_row_scan_4x4; |
| break; |
| case DCT_ADST: |
| scan = vp9_col_scan_4x4; |
| break; |
| } |
| above_ec = A0[aidx] != 0; |
| left_ec = L0[lidx] != 0; |
| coef_probs = fc->coef_probs_4x4; |
| coef_counts = fc->coef_counts_4x4; |
| break; |
| } |
| case TX_8X8: |
| scan = vp9_default_zig_zag1d_8x8; |
| coef_probs = fc->coef_probs_8x8; |
| coef_counts = fc->coef_counts_8x8; |
| above_ec = (A0[aidx] + A0[aidx + 1]) != 0; |
| left_ec = (L0[lidx] + L0[lidx + 1]) != 0; |
| break; |
| case TX_16X16: |
| scan = vp9_default_zig_zag1d_16x16; |
| coef_probs = fc->coef_probs_16x16; |
| coef_counts = fc->coef_counts_16x16; |
| if (type == PLANE_TYPE_UV) { |
| ENTROPY_CONTEXT *A1 = (ENTROPY_CONTEXT *) (xd->above_context + 1); |
| ENTROPY_CONTEXT *L1 = (ENTROPY_CONTEXT *) (xd->left_context + 1); |
| above_ec = (A0[aidx] + A0[aidx + 1] + A1[aidx] + A1[aidx + 1]) != 0; |
| left_ec = (L0[lidx] + L0[lidx + 1] + L1[lidx] + L1[lidx + 1]) != 0; |
| } else { |
| above_ec = (A0[aidx] + A0[aidx + 1] + A0[aidx + 2] + A0[aidx + 3]) != 0; |
| left_ec = (L0[lidx] + L0[lidx + 1] + L0[lidx + 2] + L0[lidx + 3]) != 0; |
| } |
| break; |
| case TX_32X32: |
| scan = vp9_default_zig_zag1d_32x32; |
| coef_probs = fc->coef_probs_32x32; |
| coef_counts = fc->coef_counts_32x32; |
| if (type == PLANE_TYPE_UV) { |
| ENTROPY_CONTEXT *A1 = (ENTROPY_CONTEXT *) (xd->above_context + 1); |
| ENTROPY_CONTEXT *L1 = (ENTROPY_CONTEXT *) (xd->left_context + 1); |
| ENTROPY_CONTEXT *A2 = (ENTROPY_CONTEXT *) (xd->above_context + 2); |
| ENTROPY_CONTEXT *L2 = (ENTROPY_CONTEXT *) (xd->left_context + 2); |
| ENTROPY_CONTEXT *A3 = (ENTROPY_CONTEXT *) (xd->above_context + 3); |
| ENTROPY_CONTEXT *L3 = (ENTROPY_CONTEXT *) (xd->left_context + 3); |
| above_ec = (A0[aidx] + A0[aidx + 1] + A1[aidx] + A1[aidx + 1] + |
| A2[aidx] + A2[aidx + 1] + A3[aidx] + A3[aidx + 1]) != 0; |
| left_ec = (L0[lidx] + L0[lidx + 1] + L1[lidx] + L1[lidx + 1] + |
| L2[lidx] + L2[lidx + 1] + L3[lidx] + L3[lidx + 1]) != 0; |
| } else { |
| ENTROPY_CONTEXT *A1 = (ENTROPY_CONTEXT *) (xd->above_context + 1); |
| ENTROPY_CONTEXT *L1 = (ENTROPY_CONTEXT *) (xd->left_context + 1); |
| above_ec = (A0[aidx] + A0[aidx + 1] + A0[aidx + 2] + A0[aidx + 3] + |
| A1[aidx] + A1[aidx + 1] + A1[aidx + 2] + A1[aidx + 3]) != 0; |
| left_ec = (L0[lidx] + L0[lidx + 1] + L0[lidx + 2] + L0[lidx + 3] + |
| L1[lidx] + L1[lidx + 1] + L1[lidx + 2] + L1[lidx + 3]) != 0; |
| } |
| break; |
| } |
| |
| VP9_COMBINEENTROPYCONTEXTS(pt, above_ec, left_ec); |
| while (1) { |
| int val; |
| const uint8_t *cat6 = cat6_prob; |
| |
| if (c >= seg_eob) |
| break; |
| #if CONFIG_CODE_NONZEROCOUNT |
| if (nzc == nzc_expected) |
| break; |
| #endif |
| prob = coef_probs[type][ref][get_coef_band(txfm_size, c)][pt]; |
| #if CONFIG_CODE_NONZEROCOUNT == 0 |
| if (!vp9_read(br, prob[EOB_CONTEXT_NODE])) |
| break; |
| #endif |
| SKIP_START: |
| if (c >= seg_eob) |
| break; |
| #if CONFIG_CODE_NONZEROCOUNT |
| if (nzc == nzc_expected) |
| break; |
| // decode zero node only if there are zeros left |
| if (seg_eob - nzc_expected - c + nzc > 0) |
| #endif |
| if (!vp9_read(br, prob[ZERO_CONTEXT_NODE])) { |
| INCREMENT_COUNT(ZERO_TOKEN); |
| ++c; |
| prob = coef_probs[type][ref][get_coef_band(txfm_size, c)][pt]; |
| goto SKIP_START; |
| } |
| // ONE_CONTEXT_NODE_0_ |
| if (!vp9_read(br, prob[ONE_CONTEXT_NODE])) { |
| WRITE_COEF_CONTINUE(1, ONE_TOKEN); |
| } |
| // LOW_VAL_CONTEXT_NODE_0_ |
| if (!vp9_read(br, prob[LOW_VAL_CONTEXT_NODE])) { |
| if (!vp9_read(br, prob[TWO_CONTEXT_NODE])) { |
| WRITE_COEF_CONTINUE(2, TWO_TOKEN); |
| } |
| if (!vp9_read(br, prob[THREE_CONTEXT_NODE])) { |
| WRITE_COEF_CONTINUE(3, THREE_TOKEN); |
| } |
| WRITE_COEF_CONTINUE(4, FOUR_TOKEN); |
| } |
| // HIGH_LOW_CONTEXT_NODE_0_ |
| if (!vp9_read(br, prob[HIGH_LOW_CONTEXT_NODE])) { |
| if (!vp9_read(br, prob[CAT_ONE_CONTEXT_NODE])) { |
| val = CAT1_MIN_VAL; |
| ADJUST_COEF(CAT1_PROB0, 0); |
| WRITE_COEF_CONTINUE(val, DCT_VAL_CATEGORY1); |
| } |
| val = CAT2_MIN_VAL; |
| ADJUST_COEF(CAT2_PROB1, 1); |
| ADJUST_COEF(CAT2_PROB0, 0); |
| WRITE_COEF_CONTINUE(val, DCT_VAL_CATEGORY2); |
| } |
| // CAT_THREEFOUR_CONTEXT_NODE_0_ |
| if (!vp9_read(br, prob[CAT_THREEFOUR_CONTEXT_NODE])) { |
| if (!vp9_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, DCT_VAL_CATEGORY3); |
| } |
| 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, DCT_VAL_CATEGORY4); |
| } |
| // CAT_FIVE_CONTEXT_NODE_0_: |
| if (!vp9_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, DCT_VAL_CATEGORY5); |
| } |
| val = 0; |
| while (*cat6) { |
| val = (val << 1) | vp9_read(br, *cat6++); |
| } |
| val += CAT6_MIN_VAL; |
| WRITE_COEF_CONTINUE(val, DCT_VAL_CATEGORY6); |
| } |
| |
| #if CONFIG_CODE_NONZEROCOUNT == 0 |
| if (c < seg_eob) |
| coef_counts[type][ref][get_coef_band(txfm_size, c)][pt][DCT_EOB_TOKEN]++; |
| #endif |
| |
| A0[aidx] = L0[lidx] = c > 0; |
| if (txfm_size >= TX_8X8) { |
| A0[aidx + 1] = L0[lidx + 1] = A0[aidx]; |
| if (txfm_size >= TX_16X16) { |
| if (type == PLANE_TYPE_UV) { |
| ENTROPY_CONTEXT *A1 = (ENTROPY_CONTEXT *) (xd->above_context + 1); |
| ENTROPY_CONTEXT *L1 = (ENTROPY_CONTEXT *) (xd->left_context + 1); |
| A1[aidx] = A1[aidx + 1] = L1[lidx] = L1[lidx + 1] = A0[aidx]; |
| if (txfm_size >= TX_32X32) { |
| ENTROPY_CONTEXT *A2 = (ENTROPY_CONTEXT *) (xd->above_context + 2); |
| ENTROPY_CONTEXT *L2 = (ENTROPY_CONTEXT *) (xd->left_context + 2); |
| ENTROPY_CONTEXT *A3 = (ENTROPY_CONTEXT *) (xd->above_context + 3); |
| ENTROPY_CONTEXT *L3 = (ENTROPY_CONTEXT *) (xd->left_context + 3); |
| A2[aidx] = A2[aidx + 1] = A3[aidx] = A3[aidx + 1] = A0[aidx]; |
| L2[lidx] = L2[lidx + 1] = L3[lidx] = L3[lidx + 1] = A0[aidx]; |
| } |
| } else { |
| A0[aidx + 2] = A0[aidx + 3] = L0[lidx + 2] = L0[lidx + 3] = A0[aidx]; |
| if (txfm_size >= TX_32X32) { |
| ENTROPY_CONTEXT *A1 = (ENTROPY_CONTEXT *) (xd->above_context + 1); |
| ENTROPY_CONTEXT *L1 = (ENTROPY_CONTEXT *) (xd->left_context + 1); |
| A1[aidx] = A1[aidx + 1] = A1[aidx + 2] = A1[aidx + 3] = A0[aidx]; |
| L1[lidx] = L1[lidx + 1] = L1[lidx + 2] = L1[lidx + 3] = A0[aidx]; |
| } |
| } |
| } |
| } |
| return c; |
| } |
| |
| static int get_eob(MACROBLOCKD* const xd, int segment_id, int eob_max) { |
| return vp9_get_segdata(xd, segment_id, SEG_LVL_SKIP) ? 0 : eob_max; |
| } |
| |
| int vp9_decode_sb_tokens(VP9D_COMP* const pbi, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| int i, eobtotal = 0, seg_eob, c; |
| |
| switch (xd->mode_info_context->mbmi.txfm_size) { |
| case TX_32X32: |
| // Luma block |
| c = decode_coefs(pbi, xd, bc, 0, PLANE_TYPE_Y_WITH_DC, |
| get_eob(xd, segment_id, 1024), xd->qcoeff, TX_32X32); |
| xd->eobs[0] = c; |
| eobtotal += c; |
| |
| // 16x16 chroma blocks |
| seg_eob = get_eob(xd, segment_id, 256); |
| for (i = 64; i < 96; i += 16) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_16X16); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_16X16: |
| // 16x16 luma blocks |
| seg_eob = get_eob(xd, segment_id, 256); |
| for (i = 0; i < 64; i += 16) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_16X16); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 16x16 chroma blocks |
| for (i = 64; i < 96; i += 16) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_16X16); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_8X8: |
| // 8x8 luma blocks |
| seg_eob = get_eob(xd, segment_id, 64); |
| for (i = 0; i < 64; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 8x8 chroma blocks |
| for (i = 64; i < 96; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_4X4: |
| // 4x4 luma blocks |
| seg_eob = get_eob(xd, segment_id, 16); |
| for (i = 0; i < 64; i++) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_4X4); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 4x4 chroma blocks |
| for (i = 64; i < 96; i++) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_4X4); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| default: assert(0); |
| } |
| |
| return eobtotal; |
| } |
| |
| int vp9_decode_sb64_tokens(VP9D_COMP* const pbi, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| int i, eobtotal = 0, seg_eob, c; |
| |
| switch (xd->mode_info_context->mbmi.txfm_size) { |
| case TX_32X32: |
| // Luma block |
| seg_eob = get_eob(xd, segment_id, 1024); |
| for (i = 0; i < 256; i += 64) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_32X32); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 32x32 chroma blocks |
| for (i = 256; i < 384; i += 64) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_32X32); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_16X16: |
| // 16x16 luma blocks |
| seg_eob = get_eob(xd, segment_id, 256); |
| for (i = 0; i < 256; i += 16) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_16X16); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 16x16 chroma blocks |
| for (i = 256; i < 384; i += 16) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_16X16); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_8X8: |
| // 8x8 luma blocks |
| seg_eob = get_eob(xd, segment_id, 64); |
| for (i = 0; i < 256; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 8x8 chroma blocks |
| for (i = 256; i < 384; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| case TX_4X4: |
| // 4x4 luma blocks |
| seg_eob = get_eob(xd, segment_id, 16); |
| for (i = 0; i < 256; i++) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->qcoeff + i * 16, TX_4X4); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // 4x4 chroma blocks |
| for (i = 256; i < 384; i++) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, seg_eob, |
| xd->qcoeff + i * 16, TX_4X4); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| break; |
| default: assert(0); |
| } |
| |
| return eobtotal; |
| } |
| |
| static int vp9_decode_mb_tokens_16x16(VP9D_COMP* const pbi, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| int i, eobtotal = 0, seg_eob; |
| |
| // Luma block |
| int c = decode_coefs(pbi, xd, bc, 0, PLANE_TYPE_Y_WITH_DC, |
| get_eob(xd, segment_id, 256), xd->qcoeff, TX_16X16); |
| xd->eobs[0] = c; |
| eobtotal += c; |
| |
| // 8x8 chroma blocks |
| seg_eob = get_eob(xd, segment_id, 64); |
| for (i = 16; i < 24; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, |
| seg_eob, xd->block[i].qcoeff, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| return eobtotal; |
| } |
| |
| static int vp9_decode_mb_tokens_8x8(VP9D_COMP* const pbi, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| int c, i, eobtotal = 0, seg_eob; |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| |
| // luma blocks |
| seg_eob = get_eob(xd, segment_id, 64); |
| for (i = 0; i < 16; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_Y_WITH_DC, |
| seg_eob, xd->block[i].qcoeff, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| |
| // chroma blocks |
| if (xd->mode_info_context->mbmi.mode == I8X8_PRED || |
| xd->mode_info_context->mbmi.mode == SPLITMV) { |
| // use 4x4 transform for U, V components in I8X8/splitmv prediction mode |
| seg_eob = get_eob(xd, segment_id, 16); |
| for (i = 16; i < 24; i++) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, |
| seg_eob, xd->block[i].qcoeff, TX_4X4); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| } else { |
| for (i = 16; i < 24; i += 4) { |
| c = decode_coefs(pbi, xd, bc, i, PLANE_TYPE_UV, |
| seg_eob, xd->block[i].qcoeff, TX_8X8); |
| xd->eobs[i] = c; |
| eobtotal += c; |
| } |
| } |
| |
| return eobtotal; |
| } |
| |
| static int decode_coefs_4x4(VP9D_COMP *dx, MACROBLOCKD *xd, |
| BOOL_DECODER* const bc, |
| PLANE_TYPE type, int i, int seg_eob) { |
| int c = decode_coefs(dx, xd, bc, i, type, seg_eob, |
| xd->block[i].qcoeff, TX_4X4); |
| xd->eobs[i] = c; |
| return c; |
| } |
| |
| int vp9_decode_coefs_4x4(VP9D_COMP *dx, MACROBLOCKD *xd, |
| BOOL_DECODER* const bc, |
| PLANE_TYPE type, int i) { |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| const int seg_eob = get_eob(xd, segment_id, 16); |
| |
| return decode_coefs_4x4(dx, xd, bc, type, i, seg_eob); |
| } |
| |
| static int decode_mb_tokens_4x4_uv(VP9D_COMP* const dx, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc, |
| int seg_eob) { |
| int eobtotal = 0, i; |
| |
| // chroma blocks |
| for (i = 16; i < 24; i++) { |
| eobtotal += decode_coefs_4x4(dx, xd, bc, PLANE_TYPE_UV, i, seg_eob); |
| } |
| |
| return eobtotal; |
| } |
| |
| int vp9_decode_mb_tokens_4x4_uv(VP9D_COMP* const dx, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| const int seg_eob = get_eob(xd, segment_id, 16); |
| |
| return decode_mb_tokens_4x4_uv(dx, xd, bc, seg_eob); |
| } |
| |
| static int vp9_decode_mb_tokens_4x4(VP9D_COMP* const dx, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| int i, eobtotal = 0; |
| const int segment_id = xd->mode_info_context->mbmi.segment_id; |
| const int seg_eob = get_eob(xd, segment_id, 16); |
| |
| // luma blocks |
| for (i = 0; i < 16; ++i) { |
| eobtotal += decode_coefs_4x4(dx, xd, bc, PLANE_TYPE_Y_WITH_DC, i, seg_eob); |
| } |
| |
| // chroma blocks |
| eobtotal += decode_mb_tokens_4x4_uv(dx, xd, bc, seg_eob); |
| |
| return eobtotal; |
| } |
| |
| int vp9_decode_mb_tokens(VP9D_COMP* const dx, |
| MACROBLOCKD* const xd, |
| BOOL_DECODER* const bc) { |
| const TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size; |
| switch (tx_size) { |
| case TX_16X16: |
| return vp9_decode_mb_tokens_16x16(dx, xd, bc); |
| case TX_8X8: |
| return vp9_decode_mb_tokens_8x8(dx, xd, bc); |
| default: |
| assert(tx_size == TX_4X4); |
| return vp9_decode_mb_tokens_4x4(dx, xd, bc); |
| } |
| } |
