1 | /**
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2 | * @file common.h
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3 | * common internal api header.
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4 | */
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5 |
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6 | #ifndef COMMON_H
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7 | #define COMMON_H
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8 |
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9 | #ifdef DEBUG
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10 | # undef DEBUG
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11 | #endif
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12 |
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13 | #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
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14 | # define CONFIG_WIN32
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15 | #endif
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16 |
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17 | #if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(EMULATE_INTTYPES)
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18 | # define EMULATE_INTTYPES
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19 | #endif
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20 |
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21 | #ifndef M_PI
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22 | #define M_PI 3.14159265358979323846
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23 | #endif
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24 |
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25 | #if ( defined(__PIC__) || defined(__pic__) ) && ! defined(PIC)
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26 | # define PIC
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27 | #endif
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28 |
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29 | #ifdef HAVE_AV_CONFIG_H
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30 | /* only include the following when compiling package */
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31 | # include "config.h"
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32 |
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33 | # include <stdlib.h>
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34 | # include <stdio.h>
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35 | # include <string.h>
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36 | # include <ctype.h>
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37 | # include <limits.h>
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38 | # ifndef __BEOS__
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39 | # include <errno.h>
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40 | # else
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41 | # include "berrno.h"
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42 | # endif
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43 | # include <math.h>
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44 |
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45 | # ifndef ENODATA
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46 | # define ENODATA 61
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47 | # endif
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48 |
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49 | #include <stddef.h>
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50 | #ifndef offsetof
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51 | # define offsetof(T,F) ((unsigned int)((char *)&((T *)0)->F))
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52 | #endif
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53 |
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54 | #define AVOPTION_CODEC_BOOL(name, help, field) \
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55 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_BOOL }
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56 | #define AVOPTION_CODEC_DOUBLE(name, help, field, minv, maxv, defval) \
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57 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_DOUBLE, minv, maxv, defval }
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58 | #define AVOPTION_CODEC_FLAG(name, help, field, flag, defval) \
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59 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_FLAG, flag, 0, defval }
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60 | #define AVOPTION_CODEC_INT(name, help, field, minv, maxv, defval) \
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61 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_INT, minv, maxv, defval }
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62 | #define AVOPTION_CODEC_STRING(name, help, field, str, val) \
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63 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_STRING, .defval = val, .defstr = str }
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64 | #define AVOPTION_CODEC_RCOVERRIDE(name, help, field) \
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65 | { name, help, offsetof(AVCodecContext, field), FF_OPT_TYPE_RCOVERRIDE, .defval = 0, .defstr = NULL }
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66 | #define AVOPTION_SUB(ptr) { .name = NULL, .help = (const char*)ptr }
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67 | #define AVOPTION_END() AVOPTION_SUB(NULL)
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68 |
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69 | #endif /* HAVE_AV_CONFIG_H */
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70 |
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71 | /* Suppress restrict if it was not defined in config.h. */
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72 | #ifndef restrict
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73 | # define restrict
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74 | #endif
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75 |
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76 | #ifndef always_inline
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77 | #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
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78 | # define always_inline __attribute__((always_inline)) inline
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79 | #else
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80 | # define always_inline inline
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81 | #endif
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82 | #endif
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83 |
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84 | #ifndef attribute_used
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85 | #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
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86 | # define attribute_used __attribute__((used))
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87 | #else
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88 | # define attribute_used
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89 | #endif
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90 | #endif
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91 |
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92 | #ifndef attribute_unused
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93 | #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
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94 | # define attribute_unused __attribute__((unused))
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95 | #else
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96 | # define attribute_unused
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97 | #endif
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98 | #endif
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99 |
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100 | #ifndef EMULATE_INTTYPES
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101 | # include <inttypes.h>
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102 | #else
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103 | typedef signed char int8_t;
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104 | typedef signed short int16_t;
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105 | typedef signed int int32_t;
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106 | typedef unsigned char uint8_t;
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107 | typedef unsigned short uint16_t;
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108 | typedef unsigned int uint32_t;
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109 |
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110 | # ifdef CONFIG_WIN32
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111 | typedef signed __int64 int64_t;
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112 | typedef unsigned __int64 uint64_t;
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113 | # else /* other OS */
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114 | typedef signed long long int64_t;
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115 | typedef unsigned long long uint64_t;
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116 | # endif /* other OS */
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117 | #endif /* EMULATE_INTTYPES */
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118 |
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119 | #ifndef PRId64
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120 | #define PRId64 "lld"
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121 | #endif
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122 |
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123 | #ifndef PRIu64
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124 | #define PRIu64 "llu"
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125 | #endif
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126 |
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127 | #ifndef PRIx64
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128 | #define PRIx64 "llx"
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129 | #endif
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130 |
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131 | #ifndef PRId32
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132 | #define PRId32 "d"
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133 | #endif
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134 |
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135 | #ifndef PRIdFAST16
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136 | #define PRIdFAST16 PRId32
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137 | #endif
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138 |
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139 | #ifndef PRIdFAST32
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140 | #define PRIdFAST32 PRId32
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141 | #endif
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142 |
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143 | #ifndef INT16_MIN
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144 | #define INT16_MIN (-0x7fff-1)
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145 | #endif
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146 |
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147 | #ifndef INT16_MAX
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148 | #define INT16_MAX 0x7fff
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149 | #endif
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150 |
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151 | #ifndef INT32_MIN
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152 | #define INT32_MIN (-0x7fffffff-1)
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153 | #endif
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154 |
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155 | #ifndef INT32_MAX
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156 | #define INT32_MAX 0x7fffffff
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157 | #endif
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158 |
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159 | #ifndef UINT32_MAX
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160 | #define UINT32_MAX 0xffffffff
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161 | #endif
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162 |
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163 | #ifndef INT64_MIN
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164 | #define INT64_MIN (-0x7fffffffffffffffLL-1)
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165 | #endif
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166 |
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167 | #ifndef INT64_MAX
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168 | #define INT64_MAX int64_t_C(9223372036854775807)
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169 | #endif
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170 |
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171 | #ifndef UINT64_MAX
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172 | #define UINT64_MAX uint64_t_C(0xFFFFFFFFFFFFFFFF)
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173 | #endif
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174 |
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175 | #ifdef EMULATE_FAST_INT
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176 | typedef signed char int_fast8_t;
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177 | typedef signed int int_fast16_t;
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178 | typedef signed int int_fast32_t;
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179 | typedef unsigned char uint_fast8_t;
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180 | typedef unsigned int uint_fast16_t;
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181 | typedef unsigned int uint_fast32_t;
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182 | typedef uint64_t uint_fast64_t;
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183 | #endif
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184 |
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185 | #ifndef INT_BIT
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186 | # if INT_MAX != 2147483647
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187 | # define INT_BIT 64
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188 | # else
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189 | # define INT_BIT 32
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190 | # endif
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191 | #endif
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192 |
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193 | #ifdef CONFIG_WIN32
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194 |
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195 | /* windows */
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196 |
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197 | # if !defined(__MINGW32__) && !defined(__CYGWIN__)
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198 | # define int64_t_C(c) (c ## i64)
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199 | # define uint64_t_C(c) (c ## i64)
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200 |
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201 | # ifdef HAVE_AV_CONFIG_H
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202 | # define inline __inline
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203 | # endif
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204 |
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205 | # else
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206 | # define int64_t_C(c) (c ## LL)
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207 | # define uint64_t_C(c) (c ## ULL)
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208 | # endif /* __MINGW32__ */
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209 |
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210 | # ifdef HAVE_AV_CONFIG_H
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211 | # ifdef _DEBUG
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212 | # define DEBUG
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213 | # endif
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214 |
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215 | # define snprintf _snprintf
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216 | # define vsnprintf _vsnprintf
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217 |
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218 | # ifdef CONFIG_WINCE
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219 | # define perror(a)
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220 | # endif
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221 |
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222 | # endif
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223 |
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224 | /* CONFIG_WIN32 end */
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225 | #elif defined (CONFIG_OS2)
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226 | /* OS/2 EMX */
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227 |
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228 | #ifndef int64_t_C
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229 | #define int64_t_C(c) (c ## LL)
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230 | #define uint64_t_C(c) (c ## ULL)
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231 | #endif
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232 |
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233 | #ifdef HAVE_AV_CONFIG_H
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234 |
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235 | #ifdef USE_FASTMEMCPY
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236 | #include "fastmemcpy.h"
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237 | #endif
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238 |
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239 | #include <float.h>
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240 |
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241 | #endif /* HAVE_AV_CONFIG_H */
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242 |
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243 | /* CONFIG_OS2 end */
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244 | #else
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245 |
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246 | /* unix */
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247 |
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248 | #ifndef int64_t_C
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249 | #define int64_t_C(c) (c ## LL)
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250 | #define uint64_t_C(c) (c ## ULL)
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251 | #endif
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252 |
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253 | #ifdef HAVE_AV_CONFIG_H
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254 |
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255 | # ifdef USE_FASTMEMCPY
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256 | # include "fastmemcpy.h"
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257 | # endif
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258 | # endif /* HAVE_AV_CONFIG_H */
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259 |
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260 | #endif /* !CONFIG_WIN32 && !CONFIG_OS2 */
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261 |
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262 | #ifdef HAVE_AV_CONFIG_H
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263 |
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264 | #if defined(__MINGW32__) && !defined(BUILD_AVUTIL) && defined(BUILD_SHARED_AV)
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265 | # define FF_IMPORT_ATTR __declspec(dllimport)
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266 | #else
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267 | # define FF_IMPORT_ATTR
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268 | #endif
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269 |
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270 |
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271 | # include "bswap.h"
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272 |
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273 | // Use rip-relative addressing if compiling PIC code on x86-64.
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274 | # if defined(__MINGW32__) || defined(__CYGWIN__) || \
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275 | defined(__OS2__) || (defined (__OpenBSD__) && !defined(__ELF__))
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276 | # if defined(ARCH_X86_64) && defined(PIC)
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277 | # define MANGLE(a) "_" #a"(%%rip)"
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278 | # else
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279 | # define MANGLE(a) "_" #a
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280 | # endif
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281 | # else
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282 | # if defined(ARCH_X86_64) && defined(PIC)
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283 | # define MANGLE(a) #a"(%%rip)"
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284 | # elif defined(CONFIG_DARWIN)
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285 | # define MANGLE(a) "_" #a
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286 | # else
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287 | # define MANGLE(a) #a
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288 | # endif
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289 | # endif
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290 |
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291 | /* debug stuff */
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292 |
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293 | # if !defined(DEBUG) && !defined(NDEBUG)
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294 | # define NDEBUG
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295 | # endif
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296 | # include <assert.h>
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297 |
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298 | /* dprintf macros */
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299 | # if defined(CONFIG_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
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300 |
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301 | inline void dprintf(const char* fmt,...) {}
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302 |
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303 | /*
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304 | * Modified by Michael to compile correctly
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305 | */
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306 |
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307 | # else
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308 |
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309 | # ifdef DEBUG
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310 | # define dprintf(...) av_log(NULL, AV_LOG_DEBUG, __VA_ARGS__)
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311 | # else
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312 | # define dprintf(...)
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313 | # endif
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314 |
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315 | # endif /* !CONFIG_WIN32 */
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316 | # ifdef CONFIG_WINCE
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317 | # define abort()
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318 | # endif
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319 |
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320 | # define av_abort() do { av_log(NULL, AV_LOG_ERROR, "Abort at %s:%d\n", __FILE__, __LINE__); abort(); } while (0)
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321 |
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322 | //rounded divison & shift
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323 | #define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
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324 | /* assume b>0 */
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325 | #define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
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326 | #define ABS(a) ((a) >= 0 ? (a) : (-(a)))
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327 |
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328 | #define FFMAX(a,b) ((a) > (b) ? (a) : (b))
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329 | #define FFMIN(a,b) ((a) > (b) ? (b) : (a))
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330 |
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331 | extern const uint32_t inverse[256];
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332 |
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333 | #if defined(ARCH_X86) || defined(ARCH_X86_64)
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334 | # define FASTDIV(a,b) \
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335 | ({\
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336 | int ret,dmy;\
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337 | asm volatile(\
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338 | "mull %3"\
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339 | :"=d"(ret),"=a"(dmy)\
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340 | :"1"(a),"g"(inverse[b])\
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341 | );\
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342 | ret;\
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343 | })
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344 | #elif defined(CONFIG_FASTDIV)
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345 | # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a)*inverse[b])>>32))
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346 | #else
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347 | # define FASTDIV(a,b) ((a)/(b))
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348 | #endif
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349 |
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350 | /* misc math functions */
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351 | extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
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352 |
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353 | static inline int av_log2(unsigned int v)
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354 | {
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355 | int n;
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356 |
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357 | n = 0;
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358 | if (v & 0xffff0000) {
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359 | v >>= 16;
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360 | n += 16;
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361 | }
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362 | if (v & 0xff00) {
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363 | v >>= 8;
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364 | n += 8;
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365 | }
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366 | n += ff_log2_tab[v];
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367 |
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368 | return n;
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369 | }
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370 |
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371 | static inline int av_log2_16bit(unsigned int v)
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372 | {
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373 | int n;
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374 |
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375 | n = 0;
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376 | if (v & 0xff00) {
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377 | v >>= 8;
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378 | n += 8;
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379 | }
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380 | n += ff_log2_tab[v];
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381 |
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382 | return n;
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383 | }
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384 |
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385 | /* median of 3 */
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386 | static inline int mid_pred(int a, int b, int c)
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387 | {
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388 | #if 0
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389 | int t= (a-b)&((a-b)>>31);
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390 | a-=t;
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391 | b+=t;
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392 | b-= (b-c)&((b-c)>>31);
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393 | b+= (a-b)&((a-b)>>31);
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394 |
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395 | return b;
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396 | #else
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397 | if(a>b){
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398 | if(c>b){
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399 | if(c>a) b=a;
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400 | else b=c;
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401 | }
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402 | }else{
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403 | if(b>c){
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404 | if(c>a) b=c;
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405 | else b=a;
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406 | }
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407 | }
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408 | return b;
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409 | #endif
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410 | }
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411 |
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412 | /**
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413 | * clip a signed integer value into the amin-amax range
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414 | * @param a value to clip
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415 | * @param amin minimum value of the clip range
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416 | * @param amax maximum value of the clip range
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417 | * @return cliped value
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418 | */
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419 | static inline int clip(int a, int amin, int amax)
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420 | {
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421 | if (a < amin) return amin;
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422 | else if (a > amax) return amax;
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423 | else return a;
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424 | }
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425 |
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426 | /**
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427 | * clip a signed integer value into the 0-255 range
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428 | * @param a value to clip
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429 | * @return cliped value
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430 | */
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431 | static inline uint8_t clip_uint8(int a)
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432 | {
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433 | if (a&(~255)) return (-a)>>31;
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434 | else return a;
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435 | }
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436 |
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437 | /* math */
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438 | extern FF_IMPORT_ATTR const uint8_t ff_sqrt_tab[128];
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439 |
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440 | int64_t ff_gcd(int64_t a, int64_t b);
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441 |
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442 | static inline int ff_sqrt(int a)
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443 | {
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444 | int ret=0;
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445 | int s;
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446 | int ret_sq=0;
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447 |
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448 | if(a<128) return ff_sqrt_tab[a];
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449 |
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450 | for(s=15; s>=0; s--){
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451 | int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
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452 | if(b<=a){
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453 | ret_sq=b;
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454 | ret+= 1<<s;
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455 | }
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456 | }
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457 | return ret;
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458 | }
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459 |
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460 | /**
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461 | * converts fourcc string to int
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462 | */
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463 | static inline int ff_get_fourcc(const char *s){
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464 | assert( strlen(s)==4 );
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465 |
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466 | return (s[0]) + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
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467 | }
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468 |
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469 | #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
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470 | #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
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471 |
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472 |
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473 | #if defined(ARCH_X86) || defined(ARCH_X86_64)
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474 | #define MASK_ABS(mask, level)\
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475 | asm volatile(\
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476 | "cdq \n\t"\
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477 | "xorl %1, %0 \n\t"\
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478 | "subl %1, %0 \n\t"\
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479 | : "+a" (level), "=&d" (mask)\
|
---|
480 | );
|
---|
481 | #else
|
---|
482 | #define MASK_ABS(mask, level)\
|
---|
483 | mask= level>>31;\
|
---|
484 | level= (level^mask)-mask;
|
---|
485 | #endif
|
---|
486 |
|
---|
487 | #define GET_UTF8(val, GET_BYTE, ERROR)\
|
---|
488 | val= GET_BYTE;\
|
---|
489 | {\
|
---|
490 | int ones= 7 - av_log2(val ^ 255);\
|
---|
491 | if(ones==1)\
|
---|
492 | ERROR\
|
---|
493 | val&= 127>>ones;\
|
---|
494 | while(--ones > 0){\
|
---|
495 | int tmp= GET_BYTE - 128;\
|
---|
496 | if(tmp>>6)\
|
---|
497 | ERROR\
|
---|
498 | val= (val<<6) + tmp;\
|
---|
499 | }\
|
---|
500 | }
|
---|
501 |
|
---|
502 | #if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
|
---|
503 | #define COPY3_IF_LT(x,y,a,b,c,d)\
|
---|
504 | asm volatile (\
|
---|
505 | "cmpl %0, %3 \n\t"\
|
---|
506 | "cmovl %3, %0 \n\t"\
|
---|
507 | "cmovl %4, %1 \n\t"\
|
---|
508 | "cmovl %5, %2 \n\t"\
|
---|
509 | : "+r" (x), "+r" (a), "+r" (c)\
|
---|
510 | : "r" (y), "r" (b), "r" (d)\
|
---|
511 | );
|
---|
512 | #else
|
---|
513 | #define COPY3_IF_LT(x,y,a,b,c,d)\
|
---|
514 | if((y)<(x)){\
|
---|
515 | (x)=(y);\
|
---|
516 | (a)=(b);\
|
---|
517 | (c)=(d);\
|
---|
518 | }
|
---|
519 | #endif
|
---|
520 |
|
---|
521 | #if defined(ARCH_X86) || defined(ARCH_X86_64) || defined(ARCH_POWERPC)
|
---|
522 | #if defined(ARCH_X86_64)
|
---|
523 | static inline uint64_t read_time(void)
|
---|
524 | {
|
---|
525 | uint64_t a, d;
|
---|
526 | asm volatile( "rdtsc\n\t"
|
---|
527 | : "=a" (a), "=d" (d)
|
---|
528 | );
|
---|
529 | return (d << 32) | (a & 0xffffffff);
|
---|
530 | }
|
---|
531 | #elif defined(ARCH_X86)
|
---|
532 | static inline long long read_time(void)
|
---|
533 | {
|
---|
534 | long long l;
|
---|
535 | asm volatile( "rdtsc\n\t"
|
---|
536 | : "=A" (l)
|
---|
537 | );
|
---|
538 | return l;
|
---|
539 | }
|
---|
540 | #else //FIXME check ppc64
|
---|
541 | static inline uint64_t read_time(void)
|
---|
542 | {
|
---|
543 | uint32_t tbu, tbl, temp;
|
---|
544 |
|
---|
545 | /* from section 2.2.1 of the 32-bit PowerPC PEM */
|
---|
546 | __asm__ __volatile__(
|
---|
547 | "1:\n"
|
---|
548 | "mftbu %2\n"
|
---|
549 | "mftb %0\n"
|
---|
550 | "mftbu %1\n"
|
---|
551 | "cmpw %2,%1\n"
|
---|
552 | "bne 1b\n"
|
---|
553 | : "=r"(tbl), "=r"(tbu), "=r"(temp)
|
---|
554 | :
|
---|
555 | : "cc");
|
---|
556 |
|
---|
557 | return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
|
---|
558 | }
|
---|
559 | #endif
|
---|
560 |
|
---|
561 | #define START_TIMER \
|
---|
562 | uint64_t tend;\
|
---|
563 | uint64_t tstart= read_time();\
|
---|
564 |
|
---|
565 | #define STOP_TIMER(id) \
|
---|
566 | tend= read_time();\
|
---|
567 | {\
|
---|
568 | static uint64_t tsum=0;\
|
---|
569 | static int tcount=0;\
|
---|
570 | static int tskip_count=0;\
|
---|
571 | if(tcount<2 || tend - tstart < 8*tsum/tcount){\
|
---|
572 | tsum+= tend - tstart;\
|
---|
573 | tcount++;\
|
---|
574 | }else\
|
---|
575 | tskip_count++;\
|
---|
576 | if(256*256*256*64%(tcount+tskip_count)==0){\
|
---|
577 | av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" dezicycles in %s, %d runs, %d skips\n", tsum*10/tcount, id, tcount, tskip_count);\
|
---|
578 | }\
|
---|
579 | }
|
---|
580 | #else
|
---|
581 | #define START_TIMER
|
---|
582 | #define STOP_TIMER(id) {}
|
---|
583 | #endif
|
---|
584 |
|
---|
585 | /* avoid usage of various functions */
|
---|
586 | #define malloc please_use_av_malloc
|
---|
587 | #define free please_use_av_free
|
---|
588 | #define realloc please_use_av_realloc
|
---|
589 | #define time time_is_forbidden_due_to_security_issues
|
---|
590 | #define rand rand_is_forbidden_due_to_state_trashing
|
---|
591 | #define srand srand_is_forbidden_due_to_state_trashing
|
---|
592 | #define sprintf sprintf_is_forbidden_due_to_security_issues_use_snprintf
|
---|
593 | #define strcat strcat_is_forbidden_due_to_security_issues_use_pstrcat
|
---|
594 | #if !(defined(LIBAVFORMAT_BUILD) || defined(_FRAMEHOOK_H))
|
---|
595 | #define printf please_use_av_log
|
---|
596 | #define fprintf please_use_av_log
|
---|
597 | #endif
|
---|
598 |
|
---|
599 | #define CHECKED_ALLOCZ(p, size)\
|
---|
600 | {\
|
---|
601 | p= av_mallocz(size);\
|
---|
602 | if(p==NULL && (size)!=0){\
|
---|
603 | perror("malloc");\
|
---|
604 | goto fail;\
|
---|
605 | }\
|
---|
606 | }
|
---|
607 |
|
---|
608 | #ifndef HAVE_LRINTF
|
---|
609 | /* XXX: add ISOC specific test to avoid specific BSD testing. */
|
---|
610 | /* better than nothing implementation. */
|
---|
611 | /* btw, rintf() is existing on fbsd too -- alex */
|
---|
612 | static always_inline long int lrintf(float x)
|
---|
613 | {
|
---|
614 | #ifdef CONFIG_WIN32
|
---|
615 | # ifdef ARCH_X86
|
---|
616 | int32_t i;
|
---|
617 | asm volatile(
|
---|
618 | "fistpl %0\n\t"
|
---|
619 | : "=m" (i) : "t" (x) : "st"
|
---|
620 | );
|
---|
621 | return i;
|
---|
622 | # else
|
---|
623 | /* XXX: incorrect, but make it compile */
|
---|
624 | return (int)(x + (x < 0 ? -0.5 : 0.5));
|
---|
625 | # endif /* ARCH_X86 */
|
---|
626 | #else
|
---|
627 | return (int)(rint(x));
|
---|
628 | #endif /* CONFIG_WIN32 */
|
---|
629 | }
|
---|
630 | #else
|
---|
631 | #ifndef _ISOC9X_SOURCE
|
---|
632 | #define _ISOC9X_SOURCE
|
---|
633 | #endif
|
---|
634 | #include <math.h>
|
---|
635 | #endif /* HAVE_LRINTF */
|
---|
636 |
|
---|
637 | #endif /* HAVE_AV_CONFIG_H */
|
---|
638 |
|
---|
639 | #endif /* COMMON_H */
|
---|