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Diffstat (limited to 'thirdparty/libvpx/vp9/common/vp9_entropy.h')
| -rw-r--r-- | thirdparty/libvpx/vp9/common/vp9_entropy.h | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/thirdparty/libvpx/vp9/common/vp9_entropy.h b/thirdparty/libvpx/vp9/common/vp9_entropy.h deleted file mode 100644 index 63b3bff5d9..0000000000 --- a/thirdparty/libvpx/vp9/common/vp9_entropy.h +++ /dev/null @@ -1,200 +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. - */ - -#ifndef VP9_COMMON_VP9_ENTROPY_H_ -#define VP9_COMMON_VP9_ENTROPY_H_ - -#include "vpx/vpx_integer.h" -#include "vpx_dsp/prob.h" - -#include "vp9/common/vp9_common.h" -#include "vp9/common/vp9_enums.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define DIFF_UPDATE_PROB 252 - -// Coefficient token alphabet -#define ZERO_TOKEN 0 // 0 Extra Bits 0+0 -#define ONE_TOKEN 1 // 1 Extra Bits 0+1 -#define TWO_TOKEN 2 // 2 Extra Bits 0+1 -#define THREE_TOKEN 3 // 3 Extra Bits 0+1 -#define FOUR_TOKEN 4 // 4 Extra Bits 0+1 -#define CATEGORY1_TOKEN 5 // 5-6 Extra Bits 1+1 -#define CATEGORY2_TOKEN 6 // 7-10 Extra Bits 2+1 -#define CATEGORY3_TOKEN 7 // 11-18 Extra Bits 3+1 -#define CATEGORY4_TOKEN 8 // 19-34 Extra Bits 4+1 -#define CATEGORY5_TOKEN 9 // 35-66 Extra Bits 5+1 -#define CATEGORY6_TOKEN 10 // 67+ Extra Bits 14+1 -#define EOB_TOKEN 11 // EOB Extra Bits 0+0 - -#define ENTROPY_TOKENS 12 - -#define ENTROPY_NODES 11 - -DECLARE_ALIGNED(16, extern const uint8_t, vp9_pt_energy_class[ENTROPY_TOKENS]); - -#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 - -// Extra bit probabilities. -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat1_prob[1]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat2_prob[2]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat3_prob[3]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat4_prob[4]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat5_prob[5]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat6_prob[14]); - -#if CONFIG_VP9_HIGHBITDEPTH -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat1_prob_high10[1]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat2_prob_high10[2]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat3_prob_high10[3]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat4_prob_high10[4]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat5_prob_high10[5]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat6_prob_high10[16]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat1_prob_high12[1]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat2_prob_high12[2]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat3_prob_high12[3]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat4_prob_high12[4]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat5_prob_high12[5]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_cat6_prob_high12[18]); -#endif // CONFIG_VP9_HIGHBITDEPTH - -#define EOB_MODEL_TOKEN 3 - -#define DCT_MAX_VALUE 16384 -#if CONFIG_VP9_HIGHBITDEPTH -#define DCT_MAX_VALUE_HIGH10 65536 -#define DCT_MAX_VALUE_HIGH12 262144 -#endif // CONFIG_VP9_HIGHBITDEPTH - -/* Coefficients are predicted via a 3-dimensional probability table. */ - -#define REF_TYPES 2 // intra=0, inter=1 - -/* Middle dimension reflects the coefficient position within the transform. */ -#define COEF_BANDS 6 - -/* Inside dimension is measure of nearby complexity, that reflects the energy - of nearby coefficients are nonzero. For the first coefficient (DC, unless - block type is 0), we look at the (already encoded) blocks above and to the - left of the current block. The context index is then the number (0,1,or 2) - of these blocks having nonzero coefficients. - After decoding a coefficient, the measure is determined by the size of the - most recently decoded coefficient. - Note that the intuitive meaning of this measure changes as coefficients - are decoded, e.g., prior to the first token, a zero means that my neighbors - are empty while, after the first token, because of the use of end-of-block, - a zero means we just decoded a zero and hence guarantees that a non-zero - coefficient will appear later in this block. However, this shift - in meaning is perfectly OK because our context depends also on the - coefficient band (and since zigzag positions 0, 1, and 2 are in - distinct bands). */ - -#define COEFF_CONTEXTS 6 -#define BAND_COEFF_CONTEXTS(band) ((band) == 0 ? 3 : COEFF_CONTEXTS) - -// #define ENTROPY_STATS - -typedef unsigned int vp9_coeff_count[REF_TYPES][COEF_BANDS][COEFF_CONTEXTS] - [ENTROPY_TOKENS]; -typedef unsigned int vp9_coeff_stats[REF_TYPES][COEF_BANDS][COEFF_CONTEXTS] - [ENTROPY_NODES][2]; - -#define SUBEXP_PARAM 4 /* Subexponential code parameter */ -#define MODULUS_PARAM 13 /* Modulus parameter */ - -struct VP9Common; -void vp9_default_coef_probs(struct VP9Common *cm); -void vp9_adapt_coef_probs(struct VP9Common *cm); - -// This is the index in the scan order beyond which all coefficients for -// 8x8 transform and above are in the top band. -// This macro is currently unused but may be used by certain implementations -#define MAXBAND_INDEX 21 - -DECLARE_ALIGNED(16, extern const uint8_t, vp9_coefband_trans_8x8plus[1024]); -DECLARE_ALIGNED(16, extern const uint8_t, vp9_coefband_trans_4x4[16]); - -static INLINE const uint8_t *get_band_translate(TX_SIZE tx_size) { - return tx_size == TX_4X4 ? vp9_coefband_trans_4x4 - : vp9_coefband_trans_8x8plus; -} - -// 128 lists of probabilities are stored for the following ONE node probs: -// 1, 3, 5, 7, ..., 253, 255 -// In between probabilities are interpolated linearly - -#define COEFF_PROB_MODELS 255 - -#define UNCONSTRAINED_NODES 3 - -#define PIVOT_NODE 2 // which node is pivot - -#define MODEL_NODES (ENTROPY_NODES - UNCONSTRAINED_NODES) -extern const vpx_tree_index vp9_coef_con_tree[TREE_SIZE(ENTROPY_TOKENS)]; -extern const vpx_prob vp9_pareto8_full[COEFF_PROB_MODELS][MODEL_NODES]; - -typedef vpx_prob vp9_coeff_probs_model[REF_TYPES][COEF_BANDS] - [COEFF_CONTEXTS][UNCONSTRAINED_NODES]; - -typedef unsigned int vp9_coeff_count_model[REF_TYPES][COEF_BANDS] - [COEFF_CONTEXTS] - [UNCONSTRAINED_NODES + 1]; - -void vp9_model_to_full_probs(const vpx_prob *model, vpx_prob *full); - -typedef char ENTROPY_CONTEXT; - -static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a, - ENTROPY_CONTEXT b) { - return (a != 0) + (b != 0); -} - -static INLINE int get_entropy_context(TX_SIZE tx_size, const ENTROPY_CONTEXT *a, - const ENTROPY_CONTEXT *l) { - ENTROPY_CONTEXT above_ec = 0, left_ec = 0; - - switch (tx_size) { - case TX_4X4: - above_ec = a[0] != 0; - left_ec = l[0] != 0; - break; - case TX_8X8: - above_ec = !!*(const uint16_t *)a; - left_ec = !!*(const uint16_t *)l; - break; - case TX_16X16: - above_ec = !!*(const uint32_t *)a; - left_ec = !!*(const uint32_t *)l; - break; - case TX_32X32: - above_ec = !!*(const uint64_t *)a; - left_ec = !!*(const uint64_t *)l; - break; - default: - assert(0 && "Invalid transform size."); - break; - } - - return combine_entropy_contexts(above_ec, left_ec); -} - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // VP9_COMMON_VP9_ENTROPY_H_ |