| Index: third_party/libvpx/source/libvpx/vp9/common/vp9_entropymv.h
|
| diff --git a/third_party/libvpx/source/libvpx/vp9/common/vp9_entropymv.h b/third_party/libvpx/source/libvpx/vp9/common/vp9_entropymv.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..75e6861f4da7e3cdd4d59a6c365f046f6546bb1a
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/vp9/common/vp9_entropymv.h
|
| @@ -0,0 +1,134 @@
|
| +/*
|
| + * 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_ENTROPYMV_H_
|
| +#define VP9_COMMON_VP9_ENTROPYMV_H_
|
| +
|
| +#include "./vpx_config.h"
|
| +
|
| +#include "vp9/common/vp9_mv.h"
|
| +#include "vp9/common/vp9_prob.h"
|
| +
|
| +#ifdef __cplusplus
|
| +extern "C" {
|
| +#endif
|
| +
|
| +struct VP9Common;
|
| +
|
| +void vp9_init_mv_probs(struct VP9Common *cm);
|
| +
|
| +void vp9_adapt_mv_probs(struct VP9Common *cm, int usehp);
|
| +int vp9_use_mv_hp(const MV *ref);
|
| +
|
| +#define MV_UPDATE_PROB 252
|
| +
|
| +/* Symbols for coding which components are zero jointly */
|
| +#define MV_JOINTS 4
|
| +typedef enum {
|
| + MV_JOINT_ZERO = 0, /* Zero vector */
|
| + MV_JOINT_HNZVZ = 1, /* Vert zero, hor nonzero */
|
| + MV_JOINT_HZVNZ = 2, /* Hor zero, vert nonzero */
|
| + MV_JOINT_HNZVNZ = 3, /* Both components nonzero */
|
| +} MV_JOINT_TYPE;
|
| +
|
| +static INLINE int mv_joint_vertical(MV_JOINT_TYPE type) {
|
| + return type == MV_JOINT_HZVNZ || type == MV_JOINT_HNZVNZ;
|
| +}
|
| +
|
| +static INLINE int mv_joint_horizontal(MV_JOINT_TYPE type) {
|
| + return type == MV_JOINT_HNZVZ || type == MV_JOINT_HNZVNZ;
|
| +}
|
| +
|
| +/* Symbols for coding magnitude class of nonzero components */
|
| +#define MV_CLASSES 11
|
| +typedef enum {
|
| + MV_CLASS_0 = 0, /* (0, 2] integer pel */
|
| + MV_CLASS_1 = 1, /* (2, 4] integer pel */
|
| + MV_CLASS_2 = 2, /* (4, 8] integer pel */
|
| + MV_CLASS_3 = 3, /* (8, 16] integer pel */
|
| + MV_CLASS_4 = 4, /* (16, 32] integer pel */
|
| + MV_CLASS_5 = 5, /* (32, 64] integer pel */
|
| + MV_CLASS_6 = 6, /* (64, 128] integer pel */
|
| + MV_CLASS_7 = 7, /* (128, 256] integer pel */
|
| + MV_CLASS_8 = 8, /* (256, 512] integer pel */
|
| + MV_CLASS_9 = 9, /* (512, 1024] integer pel */
|
| + MV_CLASS_10 = 10, /* (1024,2048] integer pel */
|
| +} MV_CLASS_TYPE;
|
| +
|
| +#define CLASS0_BITS 1 /* bits at integer precision for class 0 */
|
| +#define CLASS0_SIZE (1 << CLASS0_BITS)
|
| +#define MV_OFFSET_BITS (MV_CLASSES + CLASS0_BITS - 2)
|
| +#define MV_FP_SIZE 4
|
| +
|
| +#define MV_MAX_BITS (MV_CLASSES + CLASS0_BITS + 2)
|
| +#define MV_MAX ((1 << MV_MAX_BITS) - 1)
|
| +#define MV_VALS ((MV_MAX << 1) + 1)
|
| +
|
| +#define MV_IN_USE_BITS 14
|
| +#define MV_UPP ((1 << MV_IN_USE_BITS) - 1)
|
| +#define MV_LOW (-(1 << MV_IN_USE_BITS))
|
| +
|
| +extern const vp9_tree_index vp9_mv_joint_tree[];
|
| +extern const vp9_tree_index vp9_mv_class_tree[];
|
| +extern const vp9_tree_index vp9_mv_class0_tree[];
|
| +extern const vp9_tree_index vp9_mv_fp_tree[];
|
| +
|
| +typedef struct {
|
| + vp9_prob sign;
|
| + vp9_prob classes[MV_CLASSES - 1];
|
| + vp9_prob class0[CLASS0_SIZE - 1];
|
| + vp9_prob bits[MV_OFFSET_BITS];
|
| + vp9_prob class0_fp[CLASS0_SIZE][MV_FP_SIZE - 1];
|
| + vp9_prob fp[MV_FP_SIZE - 1];
|
| + vp9_prob class0_hp;
|
| + vp9_prob hp;
|
| +} nmv_component;
|
| +
|
| +typedef struct {
|
| + vp9_prob joints[MV_JOINTS - 1];
|
| + nmv_component comps[2];
|
| +} nmv_context;
|
| +
|
| +static INLINE MV_JOINT_TYPE vp9_get_mv_joint(const MV *mv) {
|
| + if (mv->row == 0) {
|
| + return mv->col == 0 ? MV_JOINT_ZERO : MV_JOINT_HNZVZ;
|
| + } else {
|
| + return mv->col == 0 ? MV_JOINT_HZVNZ : MV_JOINT_HNZVNZ;
|
| + }
|
| +}
|
| +
|
| +MV_CLASS_TYPE vp9_get_mv_class(int z, int *offset);
|
| +int vp9_get_mv_mag(MV_CLASS_TYPE c, int offset);
|
| +
|
| +
|
| +typedef struct {
|
| + unsigned int sign[2];
|
| + unsigned int classes[MV_CLASSES];
|
| + unsigned int class0[CLASS0_SIZE];
|
| + unsigned int bits[MV_OFFSET_BITS][2];
|
| + unsigned int class0_fp[CLASS0_SIZE][MV_FP_SIZE];
|
| + unsigned int fp[MV_FP_SIZE];
|
| + unsigned int class0_hp[2];
|
| + unsigned int hp[2];
|
| +} nmv_component_counts;
|
| +
|
| +typedef struct {
|
| + unsigned int joints[MV_JOINTS];
|
| + nmv_component_counts comps[2];
|
| +} nmv_context_counts;
|
| +
|
| +void vp9_inc_mv(const MV *mv, nmv_context_counts *mvctx);
|
| +
|
| +#ifdef __cplusplus
|
| +} // extern "C"
|
| +#endif
|
| +
|
| +#endif // VP9_COMMON_VP9_ENTROPYMV_H_
|
|
|