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1 | /***************************************************************************** |
2 | * Copyright (C) 2013 x265 project | |
3 | * | |
4 | * Authors: Deepthi Nandakumar <deepthi@multicorewareinc.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. | |
19 | * | |
20 | * This program is also available under a commercial proprietary license. | |
21 | * For more information, contact us at license @ x265.com. | |
22 | *****************************************************************************/ | |
23 | ||
24 | #include "common.h" | |
25 | #include "slice.h" | |
26 | #include "threading.h" | |
27 | #include "x265.h" | |
28 | ||
29 | #if _WIN32 | |
30 | #include <sys/types.h> | |
31 | #include <sys/timeb.h> | |
32 | #else | |
33 | #include <sys/time.h> | |
34 | #endif | |
35 | ||
36 | int64_t x265_mdate(void) | |
37 | { | |
38 | #if _WIN32 | |
39 | struct timeb tb; | |
40 | ftime(&tb); | |
41 | return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; | |
42 | #else | |
43 | struct timeval tv_date; | |
44 | gettimeofday(&tv_date, NULL); | |
45 | return (int64_t)tv_date.tv_sec * 1000000 + (int64_t)tv_date.tv_usec; | |
46 | #endif | |
47 | } | |
48 | ||
49 | using namespace x265; | |
50 | ||
51 | #define X265_ALIGNBYTES 32 | |
52 | ||
53 | #if _WIN32 | |
54 | #if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) | |
55 | #define _aligned_malloc __mingw_aligned_malloc | |
56 | #define _aligned_free __mingw_aligned_free | |
57 | #include "malloc.h" | |
58 | #endif | |
59 | ||
60 | void *x265_malloc(size_t size) | |
61 | { | |
62 | return _aligned_malloc(size, X265_ALIGNBYTES); | |
63 | } | |
64 | ||
65 | void x265_free(void *ptr) | |
66 | { | |
67 | if (ptr) _aligned_free(ptr); | |
68 | } | |
69 | ||
70 | #else // if _WIN32 | |
71 | void *x265_malloc(size_t size) | |
72 | { | |
73 | void *ptr; | |
74 | ||
75 | if (posix_memalign((void**)&ptr, X265_ALIGNBYTES, size) == 0) | |
76 | return ptr; | |
77 | else | |
78 | return NULL; | |
79 | } | |
80 | ||
81 | void x265_free(void *ptr) | |
82 | { | |
83 | if (ptr) free(ptr); | |
84 | } | |
85 | ||
86 | #endif // if _WIN32 | |
87 | ||
88 | /* Not a general-purpose function; multiplies input by -1/6 to convert | |
89 | * qp to qscale. */ | |
90 | int x265_exp2fix8(double x) | |
91 | { | |
92 | int i = (int)(x * (-64.f / 6.f) + 512.5f); | |
93 | ||
94 | if (i < 0) return 0; | |
95 | if (i > 1023) return 0xffff; | |
96 | return (x265_exp2_lut[i & 63] + 256) << (i >> 6) >> 8; | |
97 | } | |
98 | ||
99 | void x265_log(const x265_param *param, int level, const char *fmt, ...) | |
100 | { | |
101 | if (param && level > param->logLevel) | |
102 | return; | |
103 | const char *log_level; | |
104 | switch (level) | |
105 | { | |
106 | case X265_LOG_ERROR: | |
107 | log_level = "error"; | |
108 | break; | |
109 | case X265_LOG_WARNING: | |
110 | log_level = "warning"; | |
111 | break; | |
112 | case X265_LOG_INFO: | |
113 | log_level = "info"; | |
114 | break; | |
115 | case X265_LOG_DEBUG: | |
116 | log_level = "debug"; | |
117 | break; | |
118 | case X265_LOG_FULL: | |
119 | log_level = "full"; | |
120 | break; | |
121 | default: | |
122 | log_level = "unknown"; | |
123 | break; | |
124 | } | |
125 | ||
126 | fprintf(stderr, "x265 [%s]: ", log_level); | |
127 | va_list arg; | |
128 | va_start(arg, fmt); | |
129 | vfprintf(stderr, fmt, arg); | |
130 | va_end(arg); | |
131 | } | |
132 | ||
133 | double x265_ssim2dB(double ssim) | |
134 | { | |
135 | double inv_ssim = 1 - ssim; | |
136 | ||
137 | if (inv_ssim <= 0.0000000001) /* Max 100dB */ | |
138 | return 100; | |
139 | ||
140 | return -10.0 * log10(inv_ssim); | |
141 | } | |
142 | ||
143 | /* The qscale - qp conversion is specified in the standards. | |
144 | * Approx qscale increases by 12% with every qp increment */ | |
145 | double x265_qScale2qp(double qScale) | |
146 | { | |
147 | return 12.0 + 6.0 * (double)X265_LOG2(qScale / 0.85); | |
148 | } | |
149 | ||
150 | double x265_qp2qScale(double qp) | |
151 | { | |
152 | return 0.85 * pow(2.0, (qp - 12.0) / 6.0); | |
153 | } | |
154 | ||
155 | uint32_t x265_picturePlaneSize(int csp, int width, int height, int plane) | |
156 | { | |
157 | uint32_t size = (uint32_t)(width >> x265_cli_csps[csp].width[plane]) * (height >> x265_cli_csps[csp].height[plane]); | |
158 | ||
159 | return size; | |
160 | } | |
161 | ||
162 | char* x265_slurp_file(const char *filename) | |
163 | { | |
164 | if (!filename) | |
165 | return NULL; | |
166 | ||
167 | int bError = 0; | |
168 | size_t fSize; | |
169 | char *buf = NULL; | |
170 | ||
171 | FILE *fh = fopen(filename, "rb"); | |
172 | if (!fh) | |
173 | { | |
174 | x265_log(NULL, X265_LOG_ERROR, "unable to open file %s\n", filename); | |
175 | return NULL; | |
176 | } | |
177 | ||
178 | bError |= fseek(fh, 0, SEEK_END) < 0; | |
179 | bError |= (fSize = ftell(fh)) <= 0; | |
180 | bError |= fseek(fh, 0, SEEK_SET) < 0; | |
181 | if (bError) | |
182 | goto error; | |
183 | ||
184 | buf = X265_MALLOC(char, fSize + 2); | |
185 | if (!buf) | |
186 | { | |
187 | x265_log(NULL, X265_LOG_ERROR, "unable to allocate memory\n"); | |
188 | goto error; | |
189 | } | |
190 | ||
191 | bError |= fread(buf, 1, fSize, fh) != fSize; | |
192 | if (buf[fSize - 1] != '\n') | |
193 | buf[fSize++] = '\n'; | |
194 | buf[fSize] = 0; | |
195 | fclose(fh); | |
196 | ||
197 | if (bError) | |
198 | { | |
199 | x265_log(NULL, X265_LOG_ERROR, "unable to read the file\n"); | |
200 | X265_FREE(buf); | |
201 | buf = NULL; | |
202 | } | |
203 | return buf; | |
204 | ||
205 | error: | |
206 | fclose(fh); | |
207 | return NULL; | |
208 | } |