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gerrit-public.fairphone.software / platform / external / libavc / 505a9c0af4e07c5a1797def650c024d2dace0e8e / . / encoder / ih264e_statistics.h
blob: 0ab33cab95842a86a221b5d19fbfd360820047b0 [file] [log] [blame]
Hamsalekha S8d3d3032015-03-13 21:24:58 +0530[diff] [blame]1/******************************************************************************
2 *
3 * Copyright (C) 2015 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************
18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19*/
20
21/**
22*******************************************************************************
23* @file
24* ih264e_statistics.h
25*
26* @brief
27* Contains macros for generating stats about h264 encoder
28*
29* @author
30* ittiam
31*
32* @remarks
33* None
34*
35*******************************************************************************
36*/
37
38#ifndef IH264E_STATISTICS_H_
39#define IH264E_STATISTICS_H_
40
41#if CAVLC_LEVEL_STATS
42
43/*****************************************************************************/
44/* Extern global declarations */
45/*****************************************************************************/
46
47/**
48 ******************************************************************************
49 * @brief In cavlc encoding, a lut is used for encoding levels. It is not possible
50 * to use look up for all possible levels. The extent to which look up is generated
51 * is based on the statistics that were collected in the following global variables.
52 *
53 * gu4_cavlc_level_bin_lt_4 represents the number coefficients with abs(level) < 4
54 * gu4_cavlc_level_bin_lt_16 represents the number coefficients with 4 < abs(level) < 16
55 * gu4_cavlc_level_bin_lt_32 represents the number coefficients with 16 < abs(level) < 32
56 * and so on ...
57 * ******************************************************************************
58 */
59extern UWORD32 gu4_cavlc_level_bin_lt_4;
60extern UWORD32 gu4_cavlc_level_bin_lt_16;
61extern UWORD32 gu4_cavlc_level_bin_lt_32;
62extern UWORD32 gu4_cavlc_level_bin_lt_64;
63extern UWORD32 gu4_cavlc_level_bin_lt_128;
64extern UWORD32 gu4_cavlc_level_bin_else_where;
65extern UWORD32 gu4_cavlc_level_lut_hit_rate;
66
67/*****************************************************************************/
68/* Extern function declarations */
69/*****************************************************************************/
70
71/**
72******************************************************************************
73* @brief print cavlc stats
74******************************************************************************
75*/
76void print_cavlc_level_stats(void);
77
78#define GATHER_CAVLC_STATS1() \
79 if (u4_abs_level < 4)\
80 gu4_cavlc_level_bin_lt_4 ++; \
81 else if (u4_abs_level < 16) \
82 gu4_cavlc_level_bin_lt_16 ++; \
83 else if (u4_abs_level < 32) \
84 gu4_cavlc_level_bin_lt_32 ++; \
85 else if (u4_abs_level < 64) \
86 gu4_cavlc_level_bin_lt_64 ++; \
87 else if (u4_abs_level < 128) \
88 gu4_cavlc_level_bin_lt_128 ++; \
89 else \
90 gu4_cavlc_level_bin_else_where ++;
91
92#define GATHER_CAVLC_STATS2() \
93 gu4_cavlc_level_lut_hit_rate ++;
94
95#else
96
97#define GATHER_CAVLC_STATS1()
98
99#define GATHER_CAVLC_STATS2()
100
101#endif
102
103
104#if GATING_STATS
105
106/*****************************************************************************/
107/* Extern global declarations */
108/*****************************************************************************/
109
110/**
111******************************************************************************
112* @brief During encoding at fastest preset, some times if the inter threshold
113* is lesser than the predefined threshold, intra analysis is not done. The
114* below variable keeps track of the number of mb for which intra analysis is not
115* done
116* ******************************************************************************
117*/
118extern UWORD32 gu4_mb_gated_cnt;
119
120/*****************************************************************************/
121/* Extern function declarations */
122/*****************************************************************************/
123
124/**
125******************************************************************************
126* @brief print gating stats
127******************************************************************************
128*/
129void print_gating_stats(void);
130
131#define GATHER_GATING_STATS() \
132 gu4_mb_gated_cnt ++;
133
134#else
135
136#define GATHER_GATING_STATS()
137
138#endif
139
140
141#endif /* IH264E_STATISTICS_H_ */