/* * 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/type_aliases.h" #include "vp9/common/blockd.h" #include "onyxd_int.h" #include "vpx_mem/vpx_mem.h" #include "vpx_ports/mem.h" #include "detokenize.h" #include "vp9/common/seg_common.h" #define BOOL_DATA UINT8 #define OCB_X PREV_COEF_CONTEXTS * ENTROPY_NODES DECLARE_ALIGNED(16, static const 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, static const 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, }; DECLARE_ALIGNED(16, static const int, coef_bands_x_16x16[256]) = { 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, 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, 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, 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, 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, 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, 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, 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 vp9_reset_mb_tokens_context(MACROBLOCKD* const xd) { /* Clear entropy contexts for Y2 blocks */ if ((xd->mode_info_context->mbmi.mode != B_PRED && xd->mode_info_context->mbmi.mode != I8X8_PRED && xd->mode_info_context->mbmi.mode != SPLITMV) || xd->mode_info_context->mbmi.txfm_size == TX_16X16 ) { vpx_memset(xd->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); vpx_memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); } else { vpx_memset(xd->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1); vpx_memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) - 1); } } DECLARE_ALIGNED(16, extern const unsigned char, vp9_norm[256]); // #define PREV_CONTEXT_INC(val) (2+((val)>2)) // #define PREV_CONTEXT_INC(val) (vp9_prev_token_class[(val)]) #define PREV_CONTEXT_INC(val) (vp9_prev_token_class[(val)>10?10:(val)]) static 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; } void static count_tokens_adaptive_scan(const MACROBLOCKD *xd, INT16 *qcoeff_ptr, int block, PLANE_TYPE type, TX_TYPE tx_type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int eob, int seg_eob, FRAME_CONTEXT *fc) { int c, pt, token, band; const int *scan; switch(tx_type) { case ADST_DCT : scan = vp9_row_scan; break; case DCT_ADST : scan = vp9_col_scan; break; default : scan = vp9_default_zig_zag1d; break; } VP9_COMBINEENTROPYCONTEXTS(pt, *a, *l); for (c = !type; c < eob; ++c) { int rc = scan[c]; int v = qcoeff_ptr[rc]; band = vp9_coef_bands[c]; token = get_token(v); if (tx_type != DCT_DCT) fc->hybrid_coef_counts[type][band][pt][token]++; else fc->coef_counts[type][band][pt][token]++; pt = vp9_prev_token_class[token]; } if (eob < seg_eob) { band = vp9_coef_bands[c]; if (tx_type != DCT_DCT) fc->hybrid_coef_counts[type][band][pt][DCT_EOB_TOKEN]++; else fc->coef_counts[type][band][pt][DCT_EOB_TOKEN]++; } } void static count_tokens(INT16 *qcoeff_ptr, int block, PLANE_TYPE type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int eob, int seg_eob, FRAME_CONTEXT *const fc) { int c, pt, token, band; VP9_COMBINEENTROPYCONTEXTS(pt, *a, *l); for (c = !type; c < eob; ++c) { int rc = vp9_default_zig_zag1d[c]; int v = qcoeff_ptr[rc]; band = vp9_coef_bands[c]; token = get_token(v); fc->coef_counts[type][band][pt][token]++; pt = vp9_prev_token_class[token]; } if (eob < seg_eob) { band = vp9_coef_bands[c]; fc->coef_counts[type][band][pt][DCT_EOB_TOKEN]++; } } void static count_tokens_8x8(INT16 *qcoeff_ptr, int block, PLANE_TYPE type, TX_TYPE tx_type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int eob, int seg_eob, FRAME_CONTEXT *fc) { int c, pt, token, band; VP9_COMBINEENTROPYCONTEXTS(pt, *a, *l); for (c = !type; c < eob; ++c) { int rc = (type == 1 ? vp9_default_zig_zag1d[c] : vp9_default_zig_zag1d_8x8[c]); int v = qcoeff_ptr[rc]; band = (type == 1 ? vp9_coef_bands[c] : vp9_coef_bands_8x8[c]); token = get_token(v); if (tx_type != DCT_DCT) fc->hybrid_coef_counts_8x8[type][band][pt][token]++; else fc->coef_counts_8x8[type][band][pt][token]++; pt = vp9_prev_token_class[token]; } if (eob < seg_eob) { band = (type == 1 ? vp9_coef_bands[c] : vp9_coef_bands_8x8[c]); if (tx_type != DCT_DCT) fc->hybrid_coef_counts_8x8[type][band][pt][DCT_EOB_TOKEN]++; else fc->coef_counts_8x8[type][band][pt][DCT_EOB_TOKEN]++; } } void static count_tokens_16x16(INT16 *qcoeff_ptr, int block, PLANE_TYPE type, TX_TYPE tx_type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int eob, int seg_eob, FRAME_CONTEXT *fc) { int c, pt, token; VP9_COMBINEENTROPYCONTEXTS(pt, *a, *l); for (c = !type; c < eob; ++c) { int rc = vp9_default_zig_zag1d_16x16[c]; int v = qcoeff_ptr[rc]; int band = vp9_coef_bands_16x16[c]; token = get_token(v); if (tx_type != DCT_DCT) fc->hybrid_coef_counts_16x16[type][band][pt][token]++; else fc->coef_counts_16x16[type][band][pt][token]++; pt = vp9_prev_token_class[token]; } if (eob < seg_eob) { int band = vp9_coef_bands_16x16[c]; if (tx_type != DCT_DCT) fc->hybrid_coef_counts_16x16[type][band][pt][DCT_EOB_TOKEN]++; else fc->coef_counts_16x16[type][band][pt][DCT_EOB_TOKEN]++; } } static int get_signed(BOOL_DECODER *br, int value_to_sign) { const int split = (br->range + 1) >> 1; const VP9_BD_VALUE bigsplit = (VP9_BD_VALUE)split << (VP9_BD_VALUE_SIZE - 8); int v; if (br->count < 0) vp9_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) get_signed(br, val); \ c++; \ continue; \ } #define ADJUST_COEF(prob, bits_count) \ do { \ if (vp9_read(br, prob)) \ val += (UINT16)(1 << bits_count);\ } while (0); static int decode_coefs(VP9D_COMP *dx, const MACROBLOCKD *xd, BOOL_DECODER* const br, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, PLANE_TYPE type, TX_TYPE tx_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; int tmp, c = (type == PLANE_TYPE_Y_NO_DC); const vp9_prob *prob, *coef_probs; switch (block_type) { default: case TX_4X4: coef_probs = tx_type != DCT_DCT ? fc->hybrid_coef_probs[type][0][0] : fc->coef_probs[type][0][0]; break; case TX_8X8: coef_probs = tx_type != DCT_DCT ? fc->hybrid_coef_probs_8x8[type][0][0] : fc->coef_probs_8x8[type][0][0]; break; case TX_16X16: coef_probs = tx_type != DCT_DCT ? fc->hybrid_coef_probs_16x16[type][0][0] : fc->coef_probs_16x16[type][0][0]; break; } VP9_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 (!vp9_read(br, prob[EOB_CONTEXT_NODE])) break; SKIP_START: if (c >= seg_eob) break; if (!vp9_read(br, prob[ZERO_CONTEXT_NODE])) { ++c; prob = coef_probs + coef_bands[c]; goto SKIP_START; } // ONE_CONTEXT_NODE_0_ if (!vp9_read(br, prob[ONE_CONTEXT_NODE])) { prob = coef_probs + ENTROPY_NODES; qcoeff_ptr[scan[c]] = (INT16) get_signed(br, 1); ++c; continue; } // 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); } if (!vp9_read(br, prob[THREE_CONTEXT_NODE])) { WRITE_COEF_CONTINUE(3); } WRITE_COEF_CONTINUE(4); } // 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); } val = CAT2_MIN_VAL; ADJUST_COEF(CAT2_PROB1, 1); ADJUST_COEF(CAT2_PROB0, 0); WRITE_COEF_CONTINUE(val); } // 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); } 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 (!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); } val = 0; while (*cat6) { val = (val << 1) | vp9_read(br, *cat6++); } val += CAT6_MIN_VAL; WRITE_COEF_CONTINUE(val); } if (block_type == TX_4X4) { count_tokens_adaptive_scan(xd, qcoeff_ptr, i, type, tx_type, a, l, c, seg_eob, fc); } else if (block_type == TX_8X8) count_tokens_8x8(qcoeff_ptr, i, type, tx_type, a, l, c, seg_eob, fc); else count_tokens_16x16(qcoeff_ptr, i, type, tx_type, a, l, c, seg_eob, fc); return c; } int get_eob(MACROBLOCKD* const xd, int segment_id, int eob_max) { int active = vp9_segfeature_active(xd, segment_id, SEG_LVL_EOB); int eob = vp9_get_segdata(xd, segment_id, SEG_LVL_EOB); if (!active || eob > eob_max) eob = eob_max; return eob; } int vp9_decode_mb_tokens_16x16(VP9D_COMP* const pbi, MACROBLOCKD* const xd, BOOL_DECODER* const bc) { ENTROPY_CONTEXT* const A = (ENTROPY_CONTEXT *)xd->above_context; ENTROPY_CONTEXT* const L = (ENTROPY_CONTEXT *)xd->left_context; unsigned short* const eobs = xd->eobs; PLANE_TYPE type; int c, i, eobtotal = 0, seg_eob; const int segment_id = xd->mode_info_context->mbmi.segment_id; INT16 *qcoeff_ptr = &xd->qcoeff[0]; TX_TYPE tx_type = get_tx_type(xd, &xd->block[0]); type = PLANE_TYPE_Y_WITH_DC; seg_eob = get_eob(xd, segment_id, 256); // Luma block { const int* const scan = vp9_default_zig_zag1d_16x16; c = decode_coefs(pbi, xd, bc, A, L, type, tx_type, seg_eob, qcoeff_ptr, 0, scan, TX_16X16, coef_bands_x_16x16); eobs[0] = c; A[0] = L[0] = (c != !type); A[1] = A[2] = A[3] = A[0]; L[1] = L[2] = L[3] = L[0]; eobtotal += c; } // 8x8 chroma blocks qcoeff_ptr += 256; type = PLANE_TYPE_UV; tx_type = DCT_DCT; seg_eob = get_eob(xd, segment_id, 64); for (i = 16; i < 24; i += 4) { ENTROPY_CONTEXT* const a = A + vp9_block2above_8x8[i]; ENTROPY_CONTEXT* const l = L + vp9_block2left_8x8[i]; const int* const scan = vp9_default_zig_zag1d_8x8; c = decode_coefs(pbi, xd, bc, a, l, type, tx_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; } vpx_memset(&A[8], 0, sizeof(A[8])); vpx_memset(&L[8], 0, sizeof(L[8])); return eobtotal; } int vp9_decode_mb_tokens_8x8(VP9D_COMP* const pbi, MACROBLOCKD* const xd, BOOL_DECODER* const bc) { ENTROPY_CONTEXT *const A = (ENTROPY_CONTEXT *)xd->above_context; ENTROPY_CONTEXT *const L = (ENTROPY_CONTEXT *)xd->left_context; unsigned short *const eobs = xd->eobs; PLANE_TYPE type; int c, i, eobtotal = 0, seg_eob; const int segment_id = xd->mode_info_context->mbmi.segment_id; INT16 *qcoeff_ptr = &xd->qcoeff[0]; TX_TYPE tx_type = DCT_DCT; int bufthred = (xd->mode_info_context->mbmi.mode == I8X8_PRED || xd->mode_info_context->mbmi.mode == SPLITMV) ? 16 : 24; if (xd->mode_info_context->mbmi.mode != B_PRED && xd->mode_info_context->mbmi.mode != SPLITMV && xd->mode_info_context->mbmi.mode != I8X8_PRED) { ENTROPY_CONTEXT *const a = A + vp9_block2above_8x8[24]; ENTROPY_CONTEXT *const l = L + vp9_block2left_8x8[24]; const int *const scan = vp9_default_zig_zag1d; type = PLANE_TYPE_Y2; seg_eob = get_eob(xd, segment_id, 4); c = decode_coefs(pbi, xd, bc, a, l, type, tx_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; seg_eob = get_eob(xd, segment_id, 64); for (i = 0; i < bufthred ; i += 4) { ENTROPY_CONTEXT *const a = A + vp9_block2above_8x8[i]; ENTROPY_CONTEXT *const l = L + vp9_block2left_8x8[i]; const int *const scan = vp9_default_zig_zag1d_8x8; tx_type = DCT_DCT; if (i == 16) type = PLANE_TYPE_UV; if (type == PLANE_TYPE_Y_WITH_DC) { tx_type = get_tx_type(xd, xd->block + i); } c = decode_coefs(pbi, xd, bc, a, l, type, tx_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; } if (bufthred == 16) { type = PLANE_TYPE_UV; tx_type = DCT_DCT; seg_eob = get_eob(xd, segment_id, 16); // use 4x4 transform for U, V components in I8X8 prediction mode for (i = 16; i < 24; i++) { ENTROPY_CONTEXT *const a = A + vp9_block2above[i]; ENTROPY_CONTEXT *const l = L + vp9_block2left[i]; const int *scan = vp9_default_zig_zag1d; c = decode_coefs(pbi, xd, bc, a, l, type, tx_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; } int vp9_decode_coefs_4x4(VP9D_COMP *dx, MACROBLOCKD *xd, BOOL_DECODER* const bc, int type, int i) { ENTROPY_CONTEXT *const A = (ENTROPY_CONTEXT *)xd->above_context; ENTROPY_CONTEXT *const L = (ENTROPY_CONTEXT *)xd->left_context; ENTROPY_CONTEXT *const a = A + vp9_block2above[i]; ENTROPY_CONTEXT *const l = L + vp9_block2left[i]; INT16 *qcoeff_ptr = &xd->qcoeff[0]; const int *scan = vp9_default_zig_zag1d; unsigned short *const eobs = xd->eobs; int c, seg_eob; TX_TYPE tx_type = DCT_DCT; int segment_id = xd->mode_info_context->mbmi.segment_id; seg_eob = get_eob(xd, segment_id, 16); if (i == 24) type = PLANE_TYPE_Y2; else if (i >= 16) type = PLANE_TYPE_UV; if (type == PLANE_TYPE_Y_WITH_DC) tx_type = get_tx_type(xd, &xd->block[i]); switch (tx_type) { case ADST_DCT : scan = vp9_row_scan; break; case DCT_ADST : scan = vp9_col_scan; break; default : scan = vp9_default_zig_zag1d; break; } c = decode_coefs(dx, xd, bc, a, l, type, tx_type, seg_eob, qcoeff_ptr + i * 16, i, scan, TX_4X4, coef_bands_x); a[0] = l[0] = ((eobs[i] = c) != !type); return c; } int vp9_decode_mb_tokens(VP9D_COMP* const dx, MACROBLOCKD* const xd, BOOL_DECODER* const bc) { int i, type, eobtotal = 0; if (xd->mode_info_context->mbmi.mode != B_PRED && xd->mode_info_context->mbmi.mode != I8X8_PRED && xd->mode_info_context->mbmi.mode != SPLITMV) { eobtotal += vp9_decode_coefs_4x4(dx, xd, bc, PLANE_TYPE_Y2, 24) - 16; type = PLANE_TYPE_Y_NO_DC; } else { type = PLANE_TYPE_Y_WITH_DC; } for (i = 0; i < 24; ++i) { eobtotal += vp9_decode_coefs_4x4(dx, xd, bc, type, i); } return eobtotal; }