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Diffstat (limited to 'thirdparty/libvpx/vp9/decoder/vp9_detokenize.c')
-rw-r--r--thirdparty/libvpx/vp9/decoder/vp9_detokenize.c224
1 files changed, 0 insertions, 224 deletions
diff --git a/thirdparty/libvpx/vp9/decoder/vp9_detokenize.c b/thirdparty/libvpx/vp9/decoder/vp9_detokenize.c
deleted file mode 100644
index 47dc107fe2..0000000000
--- a/thirdparty/libvpx/vp9/decoder/vp9_detokenize.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * 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 "vpx_mem/vpx_mem.h"
-#include "vpx_ports/mem.h"
-
-#include "vp9/common/vp9_blockd.h"
-#include "vp9/common/vp9_common.h"
-#include "vp9/common/vp9_entropy.h"
-#if CONFIG_COEFFICIENT_RANGE_CHECKING
-#include "vp9/common/vp9_idct.h"
-#endif
-
-#include "vp9/decoder/vp9_detokenize.h"
-
-#define EOB_CONTEXT_NODE 0
-#define ZERO_CONTEXT_NODE 1
-#define ONE_CONTEXT_NODE 2
-
-#define INCREMENT_COUNT(token) \
- do { \
- if (counts) \
- ++coef_counts[band][ctx][token]; \
- } while (0)
-
-static INLINE int read_coeff(const vpx_prob *probs, int n, vpx_reader *r) {
- int i, val = 0;
- for (i = 0; i < n; ++i)
- val = (val << 1) | vpx_read(r, probs[i]);
- return val;
-}
-
-static int decode_coefs(const MACROBLOCKD *xd,
- PLANE_TYPE type,
- tran_low_t *dqcoeff, TX_SIZE tx_size, const int16_t *dq,
- int ctx, const int16_t *scan, const int16_t *nb,
- vpx_reader *r) {
- FRAME_COUNTS *counts = xd->counts;
- const int max_eob = 16 << (tx_size << 1);
- const FRAME_CONTEXT *const fc = xd->fc;
- const int ref = is_inter_block(xd->mi[0]);
- int band, c = 0;
- const vpx_prob (*coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
- fc->coef_probs[tx_size][type][ref];
- const vpx_prob *prob;
- unsigned int (*coef_counts)[COEFF_CONTEXTS][UNCONSTRAINED_NODES + 1];
- unsigned int (*eob_branch_count)[COEFF_CONTEXTS];
- uint8_t token_cache[32 * 32];
- const uint8_t *band_translate = get_band_translate(tx_size);
- const int dq_shift = (tx_size == TX_32X32);
- int v, token;
- int16_t dqv = dq[0];
- const uint8_t *const cat6_prob =
-#if CONFIG_VP9_HIGHBITDEPTH
- (xd->bd == VPX_BITS_12) ? vp9_cat6_prob_high12 :
- (xd->bd == VPX_BITS_10) ? vp9_cat6_prob_high12 + 2 :
-#endif // CONFIG_VP9_HIGHBITDEPTH
- vp9_cat6_prob;
- const int cat6_bits =
-#if CONFIG_VP9_HIGHBITDEPTH
- (xd->bd == VPX_BITS_12) ? 18 :
- (xd->bd == VPX_BITS_10) ? 16 :
-#endif // CONFIG_VP9_HIGHBITDEPTH
- 14;
-
- if (counts) {
- coef_counts = counts->coef[tx_size][type][ref];
- eob_branch_count = counts->eob_branch[tx_size][type][ref];
- }
-
- while (c < max_eob) {
- int val = -1;
- band = *band_translate++;
- prob = coef_probs[band][ctx];
- if (counts)
- ++eob_branch_count[band][ctx];
- if (!vpx_read(r, prob[EOB_CONTEXT_NODE])) {
- INCREMENT_COUNT(EOB_MODEL_TOKEN);
- break;
- }
-
- while (!vpx_read(r, prob[ZERO_CONTEXT_NODE])) {
- INCREMENT_COUNT(ZERO_TOKEN);
- dqv = dq[1];
- token_cache[scan[c]] = 0;
- ++c;
- if (c >= max_eob)
- return c; // zero tokens at the end (no eob token)
- ctx = get_coef_context(nb, token_cache, c);
- band = *band_translate++;
- prob = coef_probs[band][ctx];
- }
-
- if (!vpx_read(r, prob[ONE_CONTEXT_NODE])) {
- INCREMENT_COUNT(ONE_TOKEN);
- token = ONE_TOKEN;
- val = 1;
- } else {
- INCREMENT_COUNT(TWO_TOKEN);
- token = vpx_read_tree(r, vp9_coef_con_tree,
- vp9_pareto8_full[prob[PIVOT_NODE] - 1]);
- switch (token) {
- case TWO_TOKEN:
- case THREE_TOKEN:
- case FOUR_TOKEN:
- val = token;
- break;
- case CATEGORY1_TOKEN:
- val = CAT1_MIN_VAL + read_coeff(vp9_cat1_prob, 1, r);
- break;
- case CATEGORY2_TOKEN:
- val = CAT2_MIN_VAL + read_coeff(vp9_cat2_prob, 2, r);
- break;
- case CATEGORY3_TOKEN:
- val = CAT3_MIN_VAL + read_coeff(vp9_cat3_prob, 3, r);
- break;
- case CATEGORY4_TOKEN:
- val = CAT4_MIN_VAL + read_coeff(vp9_cat4_prob, 4, r);
- break;
- case CATEGORY5_TOKEN:
- val = CAT5_MIN_VAL + read_coeff(vp9_cat5_prob, 5, r);
- break;
- case CATEGORY6_TOKEN:
- val = CAT6_MIN_VAL + read_coeff(cat6_prob, cat6_bits, r);
- break;
- }
- }
- v = (val * dqv) >> dq_shift;
-#if CONFIG_COEFFICIENT_RANGE_CHECKING
-#if CONFIG_VP9_HIGHBITDEPTH
- dqcoeff[scan[c]] = highbd_check_range((vpx_read_bit(r) ? -v : v),
- xd->bd);
-#else
- dqcoeff[scan[c]] = check_range(vpx_read_bit(r) ? -v : v);
-#endif // CONFIG_VP9_HIGHBITDEPTH
-#else
- dqcoeff[scan[c]] = vpx_read_bit(r) ? -v : v;
-#endif // CONFIG_COEFFICIENT_RANGE_CHECKING
- token_cache[scan[c]] = vp9_pt_energy_class[token];
- ++c;
- ctx = get_coef_context(nb, token_cache, c);
- dqv = dq[1];
- }
-
- return c;
-}
-
-static void get_ctx_shift(MACROBLOCKD *xd, int *ctx_shift_a, int *ctx_shift_l,
- int x, int y, unsigned int tx_size_in_blocks) {
- if (xd->max_blocks_wide) {
- if (tx_size_in_blocks + x > xd->max_blocks_wide)
- *ctx_shift_a = (tx_size_in_blocks - (xd->max_blocks_wide - x)) * 8;
- }
- if (xd->max_blocks_high) {
- if (tx_size_in_blocks + y > xd->max_blocks_high)
- *ctx_shift_l = (tx_size_in_blocks - (xd->max_blocks_high - y)) * 8;
- }
-}
-
-int vp9_decode_block_tokens(MACROBLOCKD *xd, int plane, const scan_order *sc,
- int x, int y, TX_SIZE tx_size, vpx_reader *r,
- int seg_id) {
- struct macroblockd_plane *const pd = &xd->plane[plane];
- const int16_t *const dequant = pd->seg_dequant[seg_id];
- int eob;
- ENTROPY_CONTEXT *a = pd->above_context + x;
- ENTROPY_CONTEXT *l = pd->left_context + y;
- int ctx;
- int ctx_shift_a = 0;
- int ctx_shift_l = 0;
-
- switch (tx_size) {
- case TX_4X4:
- ctx = a[0] != 0;
- ctx += l[0] != 0;
- eob = decode_coefs(xd, get_plane_type(plane), pd->dqcoeff, tx_size,
- dequant, ctx, sc->scan, sc->neighbors, r);
- a[0] = l[0] = (eob > 0);
- break;
- case TX_8X8:
- get_ctx_shift(xd, &ctx_shift_a, &ctx_shift_l, x, y, 1 << TX_8X8);
- ctx = !!*(const uint16_t *)a;
- ctx += !!*(const uint16_t *)l;
- eob = decode_coefs(xd, get_plane_type(plane), pd->dqcoeff, tx_size,
- dequant, ctx, sc->scan, sc->neighbors, r);
- *(uint16_t *)a = ((eob > 0) * 0x0101) >> ctx_shift_a;
- *(uint16_t *)l = ((eob > 0) * 0x0101) >> ctx_shift_l;
- break;
- case TX_16X16:
- get_ctx_shift(xd, &ctx_shift_a, &ctx_shift_l, x, y, 1 << TX_16X16);
- ctx = !!*(const uint32_t *)a;
- ctx += !!*(const uint32_t *)l;
- eob = decode_coefs(xd, get_plane_type(plane), pd->dqcoeff, tx_size,
- dequant, ctx, sc->scan, sc->neighbors, r);
- *(uint32_t *)a = ((eob > 0) * 0x01010101) >> ctx_shift_a;
- *(uint32_t *)l = ((eob > 0) * 0x01010101) >> ctx_shift_l;
- break;
- case TX_32X32:
- get_ctx_shift(xd, &ctx_shift_a, &ctx_shift_l, x, y, 1 << TX_32X32);
- // NOTE: casting to uint64_t here is safe because the default memory
- // alignment is at least 8 bytes and the TX_32X32 is aligned on 8 byte
- // boundaries.
- ctx = !!*(const uint64_t *)a;
- ctx += !!*(const uint64_t *)l;
- eob = decode_coefs(xd, get_plane_type(plane), pd->dqcoeff, tx_size,
- dequant, ctx, sc->scan, sc->neighbors, r);
- *(uint64_t *)a = ((eob > 0) * 0x0101010101010101ULL) >> ctx_shift_a;
- *(uint64_t *)l = ((eob > 0) * 0x0101010101010101ULL) >> ctx_shift_l;
- break;
- default:
- assert(0 && "Invalid transform size.");
- eob = 0;
- break;
- }
-
- return eob;
-}
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