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vpx/vp8/common/onyxc_int.h
Deb Mukherjee 1fe85a35e0 Adaptive entropy coding of coefficients, modes, mv. 
This patch incorporates adaptive entropy coding of coefficient tokens,
and mode/mv information based on distributions encountered in a frame.
Specifically, there is an initial forward update to the probabilities
in the bitstream as before for coding the symbols in the frame, however
at the end of decoding each frame, the forward update to the
probabilities is reverted and instead the probabilities are updated
towards the actual distributions encountered within the frame.
The amount of update is weighted by the number of hits within each
context.

Results on derf/hd/std-hd are all up by 1.6%.

On derf, the most of the gains come from coefficients, however for the
hd and std-hd sets, the most of the gains come from the mode/mv
information updates.

Change-Id: I708c0e11fdacafee04940fe7ae159ba6844005fd
2012-06-15 10:35:23 -07:00

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/*
* 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 __INC_VP8C_INT_H
#define __INC_VP8C_INT_H
#include "vpx_config.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "loopfilter.h"
#include "entropymv.h"
#include "entropy.h"
#include "idct.h"
#include "recon.h"
#if CONFIG_POSTPROC
#include "postproc.h"
#endif
/*#ifdef PACKET_TESTING*/
#include "header.h"
/*#endif*/
/* Create/destroy static data structures. */
void vp8_initialize_common(void);
#define MINQ 0
#define MAXQ 255
#define QINDEX_BITS 8
#define QINDEX_RANGE (MAXQ + 1)
#define NUM_YV12_BUFFERS 4
#define COMP_PRED_CONTEXTS 2
typedef struct frame_contexts
{
vp8_prob bmode_prob [VP8_BINTRAMODES-1];
vp8_prob ymode_prob [VP8_YMODES-1]; /* interframe intra mode probs */
vp8_prob uv_mode_prob [VP8_YMODES][VP8_UV_MODES-1];
vp8_prob i8x8_mode_prob [VP8_I8X8_MODES-1];
vp8_prob sub_mv_ref_prob [VP8_SUBMVREFS-1];
vp8_prob coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
vp8_prob coef_probs_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
MV_CONTEXT mvc[2];
#if CONFIG_HIGH_PRECISION_MV
MV_CONTEXT_HP mvc_hp[2];
#endif
#if CONFIG_ADAPTIVE_ENTROPY
MV_CONTEXT pre_mvc[2];
#if CONFIG_HIGH_PRECISION_MV
MV_CONTEXT_HP pre_mvc_hp[2];
#endif
vp8_prob pre_bmode_prob [VP8_BINTRAMODES-1];
vp8_prob pre_ymode_prob [VP8_YMODES-1]; /* interframe intra mode probs */
vp8_prob pre_uv_mode_prob [VP8_YMODES][VP8_UV_MODES-1];
vp8_prob pre_i8x8_mode_prob [VP8_I8X8_MODES-1];
unsigned int bmode_counts [VP8_BINTRAMODES];
unsigned int ymode_counts [VP8_YMODES]; /* interframe intra mode probs */
unsigned int uv_mode_counts [VP8_YMODES][VP8_UV_MODES];
unsigned int i8x8_mode_counts [VP8_I8X8_MODES]; /* interframe intra mode probs */
vp8_prob pre_coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
vp8_prob pre_coef_probs_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
unsigned int coef_counts [BLOCK_TYPES] [COEF_BANDS]
[PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];
unsigned int coef_counts_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS]
[PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];
unsigned int MVcount [2] [MVvals];
#if CONFIG_HIGH_PRECISION_MV
unsigned int MVcount_hp [2] [MVvals_hp];
#endif
#endif /* CONFIG_ADAPTIVE_ENTROPY */
} FRAME_CONTEXT;
typedef enum
{
RECON_CLAMP_REQUIRED = 0,
RECON_CLAMP_NOTREQUIRED = 1
} CLAMP_TYPE;
typedef enum
{
SIXTAP = 0,
BILINEAR = 1,
#if CONFIG_ENHANCED_INTERP
EIGHTTAP = 2,
EIGHTTAP_SHARP = 3,
#endif
} INTERPOLATIONFILTERTYPE;
typedef enum
{
SINGLE_PREDICTION_ONLY = 0,
COMP_PREDICTION_ONLY = 1,
HYBRID_PREDICTION = 2,
NB_PREDICTION_TYPES = 3,
} COMPPREDMODE_TYPE;
/* TODO: allows larger transform */
typedef enum
{
ONLY_4X4 = 0,
ALLOW_8X8 = 1
} TXFM_MODE;
typedef struct VP8_COMMON_RTCD
{
#if CONFIG_RUNTIME_CPU_DETECT
vp8_idct_rtcd_vtable_t idct;
vp8_recon_rtcd_vtable_t recon;
vp8_subpix_rtcd_vtable_t subpix;
vp8_loopfilter_rtcd_vtable_t loopfilter;
#if CONFIG_POSTPROC
vp8_postproc_rtcd_vtable_t postproc;
#endif
int flags;
#else
int unused;
#endif
} VP8_COMMON_RTCD;
typedef struct VP8Common
{
struct vpx_internal_error_info error;
DECLARE_ALIGNED(16, short, Y1dequant[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2dequant[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVdequant[QINDEX_RANGE][16]);
int Width;
int Height;
int horiz_scale;
int vert_scale;
YUV_TYPE clr_type;
CLAMP_TYPE clamp_type;
YV12_BUFFER_CONFIG *frame_to_show;
YV12_BUFFER_CONFIG yv12_fb[NUM_YV12_BUFFERS];
int fb_idx_ref_cnt[NUM_YV12_BUFFERS];
int new_fb_idx, lst_fb_idx, gld_fb_idx, alt_fb_idx;
YV12_BUFFER_CONFIG post_proc_buffer;
YV12_BUFFER_CONFIG temp_scale_frame;
FRAME_TYPE last_frame_type; /* Save last frame's frame type for motion search. */
FRAME_TYPE frame_type;
int show_frame;
int frame_flags;
int MBs;
int mb_rows;
int mb_cols;
int mode_info_stride;
/* profile settings */
int experimental;
int mb_no_coeff_skip;
TXFM_MODE txfm_mode;
COMPPREDMODE_TYPE comp_pred_mode;
int no_lpf;
int use_bilinear_mc_filter;
int full_pixel;
int base_qindex;
int last_kf_gf_q; /* Q used on the last GF or KF */
int y1dc_delta_q;
int y2dc_delta_q;
int y2ac_delta_q;
int uvdc_delta_q;
int uvac_delta_q;
unsigned int frames_since_golden;
unsigned int frames_till_alt_ref_frame;
/* We allocate a MODE_INFO struct for each macroblock, together with
an extra row on top and column on the left to simplify prediction. */
MODE_INFO *mip; /* Base of allocated array */
MODE_INFO *mi; /* Corresponds to upper left visible macroblock */
MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */
MODE_INFO *prev_mi; /* 'mi' from last frame (points into prev_mip) */
// Persistent mb segment id map used in prediction.
unsigned char * last_frame_seg_map;
INTERPOLATIONFILTERTYPE mcomp_filter_type;
LOOPFILTERTYPE filter_type;
loop_filter_info_n lf_info;
int filter_level;
int last_sharpness_level;
int sharpness_level;
int refresh_last_frame; /* Two state 0 = NO, 1 = YES */
int refresh_golden_frame; /* Two state 0 = NO, 1 = YES */
int refresh_alt_ref_frame; /* Two state 0 = NO, 1 = YES */
int copy_buffer_to_gf; /* 0 none, 1 Last to GF, 2 ARF to GF */
int copy_buffer_to_arf; /* 0 none, 1 Last to ARF, 2 GF to ARF */
int refresh_entropy_probs; /* Two state 0 = NO, 1 = YES */
int ref_frame_sign_bias[MAX_REF_FRAMES]; /* Two state 0, 1 */
/* Y,U,V,Y2 */
ENTROPY_CONTEXT_PLANES *above_context; /* row of context for each plane */
ENTROPY_CONTEXT_PLANES left_context; /* (up to) 4 contexts "" */
/* keyframe block modes are predicted by their above, left neighbors */
vp8_prob kf_bmode_prob [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES-1];
vp8_prob kf_ymode_prob[8][VP8_YMODES-1]; /* keyframe "" */
int kf_ymode_probs_index;
int kf_ymode_probs_update;
vp8_prob kf_uv_mode_prob[VP8_YMODES] [VP8_UV_MODES-1];
vp8_prob prob_intra_coded;
vp8_prob prob_last_coded;
vp8_prob prob_gf_coded;
// Context probabilities when using predictive coding of segment id
vp8_prob segment_pred_probs[PREDICTION_PROBS];
unsigned char temporal_update;
// Context probabilities for reference frame prediction
unsigned char ref_scores[MAX_REF_FRAMES];
vp8_prob ref_pred_probs[PREDICTION_PROBS];
vp8_prob mod_refprobs[MAX_REF_FRAMES][PREDICTION_PROBS];
vp8_prob prob_comppred[COMP_PRED_CONTEXTS];
#if CONFIG_NEWENTROPY
vp8_prob mbskip_pred_probs[MBSKIP_CONTEXTS];
#endif
FRAME_CONTEXT lfc_a; /* last alt ref entropy */
FRAME_CONTEXT lfc; /* last frame entropy */
FRAME_CONTEXT fc; /* this frame entropy */
int mv_ref_ct[6][4][2];
int mode_context[6][4];
int mv_ref_ct_a[6][4][2];
int mode_context_a[6][4];
int vp8_mode_contexts[6][4];
unsigned int current_video_frame;
int near_boffset[3];
int version;
#ifdef PACKET_TESTING
VP8_HEADER oh;
#endif
double bitrate;
double framerate;
#if CONFIG_RUNTIME_CPU_DETECT
VP8_COMMON_RTCD rtcd;
#endif
#if CONFIG_POSTPROC
struct postproc_state postproc_state;
#endif
} VP8_COMMON;
#endif
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