| 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 | } |