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Revision 527 - (view) (download)
| 1 : | h | 102 | /************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID 2PASS CODE | ||
| 4 : | * codec | ||
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 19 : | * | ||
| 20 : | *************************************************************************/ | ||
| 21 : | |||
| 22 : | /************************************************************************** | ||
| 23 : | * | ||
| 24 : | * History: | ||
| 25 : | * | ||
| 26 : | h | 127 | * 17.04.2002 changed 1st pass quant to always be 2 (2pass_update()) |
| 27 : | h | 109 | * 07.04.2002 added max bitrate constraint, overflow controls (foxer) |
| 28 : | h | 102 | * 31.03.2002 inital version; |
| 29 : | * | ||
| 30 : | *************************************************************************/ | ||
| 31 : | |||
| 32 : | #include <windows.h> | ||
| 33 : | #include <math.h> | ||
| 34 : | |||
| 35 : | #include "2pass.h" | ||
| 36 : | |||
| 37 : | |||
| 38 : | int codec_2pass_init(CODEC* codec) | ||
| 39 : | { | ||
| 40 : | TWOPASS *twopass = &codec->twopass; | ||
| 41 : | DWORD version = -20; | ||
| 42 : | DWORD read, wrote; | ||
| 43 : | |||
| 44 : | int frames = 0, credits_frames = 0, i_frames = 0; | ||
| 45 : | __int64 total_ext = 0, total = 0, i_total = 0, i_boost_total = 0, start = 0, end = 0, start_curved = 0, end_curved = 0; | ||
| 46 : | __int64 desired = (__int64)codec->config.desired_size * 1024; | ||
| 47 : | |||
| 48 : | double total1 = 0.0; | ||
| 49 : | double total2 = 0.0; | ||
| 50 : | h | 527 | double dbytes, dbytes2; |
| 51 : | h | 102 | |
| 52 : | if (codec->config.hinted_me) | ||
| 53 : | { | ||
| 54 : | codec->twopass.hintstream = malloc(100000); | ||
| 55 : | |||
| 56 : | if (codec->twopass.hintstream == NULL) | ||
| 57 : | { | ||
| 58 : | DEBUGERR("couldn't allocate memory for mv hints"); | ||
| 59 : | return ICERR_ERROR; | ||
| 60 : | } | ||
| 61 : | } | ||
| 62 : | |||
| 63 : | switch (codec->config.mode) | ||
| 64 : | { | ||
| 65 : | case DLG_MODE_2PASS_1 : | ||
| 66 : | twopass->stats1 = CreateFile(codec->config.stats1, GENERIC_WRITE, FILE_SHARE_READ, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); | ||
| 67 : | if (twopass->stats1 == INVALID_HANDLE_VALUE) | ||
| 68 : | { | ||
| 69 : | DEBUGERR("2pass init error - couldn't create stats1"); | ||
| 70 : | return ICERR_ERROR; | ||
| 71 : | } | ||
| 72 : | if (WriteFile(twopass->stats1, &version, sizeof(DWORD), &wrote, 0) == 0 || wrote != sizeof(DWORD)) | ||
| 73 : | { | ||
| 74 : | CloseHandle(twopass->stats1); | ||
| 75 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 76 : | DEBUGERR("2pass init error - couldn't write to stats1"); | ||
| 77 : | return ICERR_ERROR; | ||
| 78 : | } | ||
| 79 : | break; | ||
| 80 : | |||
| 81 : | case DLG_MODE_2PASS_2_INT : | ||
| 82 : | case DLG_MODE_2PASS_2_EXT : | ||
| 83 : | twopass->stats1 = CreateFile(codec->config.stats1, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | ||
| 84 : | if (twopass->stats1 == INVALID_HANDLE_VALUE) | ||
| 85 : | { | ||
| 86 : | DEBUGERR("2pass init error - couldn't open stats1"); | ||
| 87 : | return ICERR_ERROR; | ||
| 88 : | } | ||
| 89 : | if (ReadFile(twopass->stats1, &version, sizeof(DWORD), &read, 0) == 0 || read != sizeof(DWORD)) | ||
| 90 : | { | ||
| 91 : | CloseHandle(twopass->stats1); | ||
| 92 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 93 : | DEBUGERR("2pass init error - couldn't read from stats1"); | ||
| 94 : | return ICERR_ERROR; | ||
| 95 : | } | ||
| 96 : | if (version != -20) | ||
| 97 : | { | ||
| 98 : | CloseHandle(twopass->stats1); | ||
| 99 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 100 : | DEBUGERR("2pass init error - wrong .stats version"); | ||
| 101 : | return ICERR_ERROR; | ||
| 102 : | } | ||
| 103 : | |||
| 104 : | if (codec->config.mode == DLG_MODE_2PASS_2_EXT) | ||
| 105 : | { | ||
| 106 : | if (twopass->stats2 != INVALID_HANDLE_VALUE) | ||
| 107 : | { | ||
| 108 : | CloseHandle(twopass->stats2); | ||
| 109 : | } | ||
| 110 : | |||
| 111 : | twopass->stats2 = CreateFile(codec->config.stats2, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | ||
| 112 : | |||
| 113 : | if (twopass->stats2 == INVALID_HANDLE_VALUE) | ||
| 114 : | { | ||
| 115 : | CloseHandle(twopass->stats1); | ||
| 116 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 117 : | DEBUGERR("2pass init error - couldn't open stats2"); | ||
| 118 : | return ICERR_ERROR; | ||
| 119 : | } | ||
| 120 : | if (ReadFile(twopass->stats2, &version, sizeof(DWORD), &read, 0) == 0 || read != sizeof(DWORD)) | ||
| 121 : | { | ||
| 122 : | CloseHandle(twopass->stats1); | ||
| 123 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 124 : | CloseHandle(twopass->stats2); | ||
| 125 : | twopass->stats2 = INVALID_HANDLE_VALUE; | ||
| 126 : | DEBUGERR("2pass init error - couldn't read from stats2"); | ||
| 127 : | return ICERR_ERROR; | ||
| 128 : | } | ||
| 129 : | if (version != -20) | ||
| 130 : | { | ||
| 131 : | CloseHandle(twopass->stats1); | ||
| 132 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 133 : | CloseHandle(twopass->stats2); | ||
| 134 : | twopass->stats2 = INVALID_HANDLE_VALUE; | ||
| 135 : | DEBUGERR("2pass init error - wrong .stats version"); | ||
| 136 : | return ICERR_ERROR; | ||
| 137 : | } | ||
| 138 : | |||
| 139 : | while (1) | ||
| 140 : | { | ||
| 141 : | if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS) || | ||
| 142 : | !ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) | ||
| 143 : | { | ||
| 144 : | DWORD err = GetLastError(); | ||
| 145 : | |||
| 146 : | if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) | ||
| 147 : | { | ||
| 148 : | break; | ||
| 149 : | } | ||
| 150 : | else | ||
| 151 : | { | ||
| 152 : | CloseHandle(twopass->stats1); | ||
| 153 : | CloseHandle(twopass->stats2); | ||
| 154 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 155 : | twopass->stats2 = INVALID_HANDLE_VALUE; | ||
| 156 : | DEBUGERR("2pass init error - incomplete stats1/stats2 record?"); | ||
| 157 : | return ICERR_ERROR; | ||
| 158 : | } | ||
| 159 : | } | ||
| 160 : | |||
| 161 : | if (!codec_is_in_credits(&codec->config, frames)) | ||
| 162 : | { | ||
| 163 : | if (twopass->nns1.quant & NNSTATS_KEYFRAME) | ||
| 164 : | { | ||
| 165 : | h | 482 | i_boost_total += twopass->nns2.bytes * codec->config.keyframe_boost / 100; |
| 166 : | h | 102 | i_total += twopass->nns2.bytes; |
| 167 : | Foxer | 342 | twopass->keyframe_locations[i_frames] = frames; |
| 168 : | h | 102 | ++i_frames; |
| 169 : | } | ||
| 170 : | |||
| 171 : | total += twopass->nns1.bytes; | ||
| 172 : | total_ext += twopass->nns2.bytes; | ||
| 173 : | } | ||
| 174 : | else | ||
| 175 : | ++credits_frames; | ||
| 176 : | |||
| 177 : | ++frames; | ||
| 178 : | } | ||
| 179 : | Foxer | 342 | twopass->keyframe_locations[i_frames] = frames; |
| 180 : | h | 102 | |
| 181 : | twopass->movie_curve = ((double)(total_ext + i_boost_total) / total_ext); | ||
| 182 : | twopass->average_frame = ((double)(total_ext - i_total) / (frames - credits_frames - i_frames) / twopass->movie_curve); | ||
| 183 : | |||
| 184 : | SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 185 : | SetFilePointer(twopass->stats2, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 186 : | |||
| 187 : | // perform prepass to compensate for over/undersizing | ||
| 188 : | frames = 0; | ||
| 189 : | |||
| 190 : | if (codec->config.use_alt_curve) | ||
| 191 : | { | ||
| 192 : | twopass->alt_curve_low = twopass->average_frame - twopass->average_frame * (double)codec->config.alt_curve_low_dist / 100.0; | ||
| 193 : | twopass->alt_curve_low_diff = twopass->average_frame - twopass->alt_curve_low; | ||
| 194 : | twopass->alt_curve_high = twopass->average_frame + twopass->average_frame * (double)codec->config.alt_curve_high_dist / 100.0; | ||
| 195 : | twopass->alt_curve_high_diff = twopass->alt_curve_high - twopass->average_frame; | ||
| 196 : | if (codec->config.alt_curve_use_auto) | ||
| 197 : | { | ||
| 198 : | if (total > total_ext) | ||
| 199 : | { | ||
| 200 : | codec->config.alt_curve_min_rel_qual = (int)(100.0 - (100.0 - 100.0 / ((double)total / (double)total_ext)) * (double)codec->config.alt_curve_auto_str / 100.0); | ||
| 201 : | if (codec->config.alt_curve_min_rel_qual < 20) | ||
| 202 : | codec->config.alt_curve_min_rel_qual = 20; | ||
| 203 : | } | ||
| 204 : | else | ||
| 205 : | codec->config.alt_curve_min_rel_qual = 100; | ||
| 206 : | } | ||
| 207 : | twopass->alt_curve_mid_qual = (1.0 + (double)codec->config.alt_curve_min_rel_qual / 100.0) / 2.0; | ||
| 208 : | twopass->alt_curve_qual_dev = 1.0 - twopass->alt_curve_mid_qual; | ||
| 209 : | if (codec->config.alt_curve_low_dist > 100) | ||
| 210 : | { | ||
| 211 : | switch(codec->config.alt_curve_type) | ||
| 212 : | { | ||
| 213 : | case 2: // Sine Curve (high aggressiveness) | ||
| 214 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 215 : | sin(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff))); | ||
| 216 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 217 : | sin(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff)); | ||
| 218 : | break; | ||
| 219 : | case 1: // Linear (medium aggressiveness) | ||
| 220 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 221 : | twopass->average_frame / twopass->alt_curve_low_diff); | ||
| 222 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 223 : | twopass->average_frame / twopass->alt_curve_low_diff; | ||
| 224 : | break; | ||
| 225 : | case 0: // Cosine Curve (low aggressiveness) | ||
| 226 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 227 : | (1.0 - cos(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff)))); | ||
| 228 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 229 : | (1.0 - cos(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff))); | ||
| 230 : | } | ||
| 231 : | } | ||
| 232 : | } | ||
| 233 : | |||
| 234 : | while (1) | ||
| 235 : | { | ||
| 236 : | if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS) || | ||
| 237 : | !ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) | ||
| 238 : | { | ||
| 239 : | DWORD err = GetLastError(); | ||
| 240 : | |||
| 241 : | if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) | ||
| 242 : | { | ||
| 243 : | break; | ||
| 244 : | } | ||
| 245 : | else | ||
| 246 : | { | ||
| 247 : | CloseHandle(twopass->stats1); | ||
| 248 : | CloseHandle(twopass->stats2); | ||
| 249 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 250 : | twopass->stats2 = INVALID_HANDLE_VALUE; | ||
| 251 : | DEBUGERR("2pass init error - incomplete stats1/stats2 record?"); | ||
| 252 : | return ICERR_ERROR; | ||
| 253 : | } | ||
| 254 : | } | ||
| 255 : | |||
| 256 : | h | 527 | if (frames == 0) |
| 257 : | { | ||
| 258 : | twopass->minpsize = (twopass->nns1.kblk + 88) / 8; | ||
| 259 : | twopass->minisize = ((twopass->nns1.kblk * 22) + 240) / 8; | ||
| 260 : | } | ||
| 261 : | |||
| 262 : | h | 102 | if (!codec_is_in_credits(&codec->config, frames) && |
| 263 : | !(twopass->nns1.quant & NNSTATS_KEYFRAME)) | ||
| 264 : | { | ||
| 265 : | h | 527 | dbytes = twopass->nns2.bytes / twopass->movie_curve; |
| 266 : | h | 102 | total1 += dbytes; |
| 267 : | |||
| 268 : | if (codec->config.use_alt_curve) | ||
| 269 : | { | ||
| 270 : | if (dbytes > twopass->average_frame) | ||
| 271 : | { | ||
| 272 : | if (dbytes >= twopass->alt_curve_high) | ||
| 273 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
| 274 : | h | 102 | else |
| 275 : | { | ||
| 276 : | switch(codec->config.alt_curve_type) | ||
| 277 : | { | ||
| 278 : | case 2: | ||
| 279 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 280 : | h | 102 | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
| 281 : | break; | ||
| 282 : | case 1: | ||
| 283 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 284 : | h | 102 | (dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
| 285 : | break; | ||
| 286 : | case 0: | ||
| 287 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 288 : | h | 102 | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
| 289 : | } | ||
| 290 : | } | ||
| 291 : | } | ||
| 292 : | else | ||
| 293 : | { | ||
| 294 : | if (dbytes <= twopass->alt_curve_low) | ||
| 295 : | h | 527 | dbytes2 = dbytes; |
| 296 : | h | 102 | else |
| 297 : | { | ||
| 298 : | switch(codec->config.alt_curve_type) | ||
| 299 : | { | ||
| 300 : | case 2: | ||
| 301 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 302 : | h | 102 | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
| 303 : | break; | ||
| 304 : | case 1: | ||
| 305 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 306 : | h | 102 | (dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
| 307 : | break; | ||
| 308 : | case 0: | ||
| 309 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
| 310 : | h | 102 | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
| 311 : | } | ||
| 312 : | } | ||
| 313 : | } | ||
| 314 : | } | ||
| 315 : | else | ||
| 316 : | { | ||
| 317 : | if (dbytes > twopass->average_frame) | ||
| 318 : | { | ||
| 319 : | h | 527 | dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
| 320 : | h | 102 | codec->config.curve_compression_high / 100.0); |
| 321 : | } | ||
| 322 : | else | ||
| 323 : | { | ||
| 324 : | h | 527 | dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
| 325 : | h | 102 | codec->config.curve_compression_low / 100.0); |
| 326 : | } | ||
| 327 : | } | ||
| 328 : | h | 527 | |
| 329 : | if (dbytes2 < twopass->minpsize) | ||
| 330 : | dbytes2 = twopass->minpsize; | ||
| 331 : | |||
| 332 : | total2 += dbytes2; | ||
| 333 : | h | 102 | } |
| 334 : | |||
| 335 : | ++frames; | ||
| 336 : | } | ||
| 337 : | |||
| 338 : | twopass->curve_comp_scale = total1 / total2; | ||
| 339 : | |||
| 340 : | if (!codec->config.use_alt_curve) | ||
| 341 : | { | ||
| 342 : | int asymmetric_average_frame; | ||
| 343 : | char s[100]; | ||
| 344 : | |||
| 345 : | asymmetric_average_frame = (int)(twopass->average_frame * twopass->curve_comp_scale); | ||
| 346 : | wsprintf(s, "middle frame size for asymmetric curve compression: %i", asymmetric_average_frame); | ||
| 347 : | DEBUG2P(s); | ||
| 348 : | } | ||
| 349 : | |||
| 350 : | SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 351 : | SetFilePointer(twopass->stats2, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 352 : | } | ||
| 353 : | else // DLG_MODE_2PASS_2_INT | ||
| 354 : | { | ||
| 355 : | while (1) | ||
| 356 : | { | ||
| 357 : | if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) | ||
| 358 : | { | ||
| 359 : | DWORD err = GetLastError(); | ||
| 360 : | |||
| 361 : | if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) | ||
| 362 : | { | ||
| 363 : | break; | ||
| 364 : | } | ||
| 365 : | else | ||
| 366 : | { | ||
| 367 : | CloseHandle(twopass->stats1); | ||
| 368 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 369 : | DEBUGERR("2pass init error - incomplete stats2 record?"); | ||
| 370 : | return ICERR_ERROR; | ||
| 371 : | } | ||
| 372 : | } | ||
| 373 : | |||
| 374 : | if (codec_is_in_credits(&codec->config, frames) == CREDITS_START) | ||
| 375 : | { | ||
| 376 : | start += twopass->nns1.bytes; | ||
| 377 : | ++credits_frames; | ||
| 378 : | } | ||
| 379 : | else if (codec_is_in_credits(&codec->config, frames) == CREDITS_END) | ||
| 380 : | { | ||
| 381 : | end += twopass->nns1.bytes; | ||
| 382 : | ++credits_frames; | ||
| 383 : | } | ||
| 384 : | else if (twopass->nns1.quant & NNSTATS_KEYFRAME) | ||
| 385 : | { | ||
| 386 : | i_total += twopass->nns1.bytes + twopass->nns1.bytes * codec->config.keyframe_boost / 100; | ||
| 387 : | total += twopass->nns1.bytes * codec->config.keyframe_boost / 100; | ||
| 388 : | Foxer | 342 | twopass->keyframe_locations[i_frames] = frames; |
| 389 : | h | 102 | ++i_frames; |
| 390 : | } | ||
| 391 : | |||
| 392 : | total += twopass->nns1.bytes; | ||
| 393 : | |||
| 394 : | ++frames; | ||
| 395 : | } | ||
| 396 : | Foxer | 342 | twopass->keyframe_locations[i_frames] = frames; |
| 397 : | h | 102 | |
| 398 : | // compensate for avi frame overhead | ||
| 399 : | desired -= frames * 24; | ||
| 400 : | |||
| 401 : | switch (codec->config.credits_mode) | ||
| 402 : | { | ||
| 403 : | case CREDITS_MODE_RATE : | ||
| 404 : | |||
| 405 : | // credits curve = (total / desired_size) * (100 / credits_rate) | ||
| 406 : | twopass->credits_start_curve = twopass->credits_end_curve = | ||
| 407 : | ((double)total / desired) * ((double)100 / codec->config.credits_rate); | ||
| 408 : | |||
| 409 : | start_curved = (__int64)(start / twopass->credits_start_curve); | ||
| 410 : | end_curved = (__int64)(end / twopass->credits_end_curve); | ||
| 411 : | |||
| 412 : | // movie curve = (total - credits) / (desired_size - curved credits) | ||
| 413 : | twopass->movie_curve = (double) | ||
| 414 : | (total - start - end) / | ||
| 415 : | (desired - start_curved - end_curved); | ||
| 416 : | |||
| 417 : | break; | ||
| 418 : | |||
| 419 : | case CREDITS_MODE_QUANT : | ||
| 420 : | |||
| 421 : | // movie curve = (total - credits) / (desired_size - credits) | ||
| 422 : | twopass->movie_curve = (double) | ||
| 423 : | (total - start - end) / (desired - start - end); | ||
| 424 : | |||
| 425 : | // aid the average asymmetric frame calculation below | ||
| 426 : | start_curved = start; | ||
| 427 : | end_curved = end; | ||
| 428 : | |||
| 429 : | break; | ||
| 430 : | |||
| 431 : | case CREDITS_MODE_SIZE : | ||
| 432 : | |||
| 433 : | // start curve = (start / start desired size) | ||
| 434 : | twopass->credits_start_curve = (double) | ||
| 435 : | (start / 1024) / codec->config.credits_start_size; | ||
| 436 : | |||
| 437 : | // end curve = (end / end desired size) | ||
| 438 : | twopass->credits_end_curve = (double) | ||
| 439 : | (end / 1024) / codec->config.credits_end_size; | ||
| 440 : | |||
| 441 : | start_curved = (__int64)(start / twopass->credits_start_curve); | ||
| 442 : | end_curved = (__int64)(end / twopass->credits_end_curve); | ||
| 443 : | |||
| 444 : | // movie curve = (total - credits) / (desired_size - curved credits) | ||
| 445 : | twopass->movie_curve = (double) | ||
| 446 : | (total - start - end) / | ||
| 447 : | (desired - start_curved - end_curved); | ||
| 448 : | |||
| 449 : | break; | ||
| 450 : | } | ||
| 451 : | |||
| 452 : | // average frame size = (desired - curved credits - curved keyframes) / | ||
| 453 : | // (frames - credits frames - keyframes) | ||
| 454 : | twopass->average_frame = (double) | ||
| 455 : | (desired - start_curved - end_curved - (i_total / twopass->movie_curve)) / | ||
| 456 : | (frames - credits_frames - i_frames); | ||
| 457 : | |||
| 458 : | SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 459 : | |||
| 460 : | // perform prepass to compensate for over/undersizing | ||
| 461 : | frames = 0; | ||
| 462 : | |||
| 463 : | if (codec->config.use_alt_curve) | ||
| 464 : | { | ||
| 465 : | twopass->alt_curve_low = twopass->average_frame - twopass->average_frame * (double)codec->config.alt_curve_low_dist / 100.0; | ||
| 466 : | twopass->alt_curve_low_diff = twopass->average_frame - twopass->alt_curve_low; | ||
| 467 : | twopass->alt_curve_high = twopass->average_frame + twopass->average_frame * (double)codec->config.alt_curve_high_dist / 100.0; | ||
| 468 : | twopass->alt_curve_high_diff = twopass->alt_curve_high - twopass->average_frame; | ||
| 469 : | if (codec->config.alt_curve_use_auto) | ||
| 470 : | { | ||
| 471 : | if (twopass->movie_curve > 1.0) | ||
| 472 : | { | ||
| 473 : | codec->config.alt_curve_min_rel_qual = (int)(100.0 - (100.0 - 100.0 / twopass->movie_curve) * (double)codec->config.alt_curve_auto_str / 100.0); | ||
| 474 : | if (codec->config.alt_curve_min_rel_qual < 20) | ||
| 475 : | codec->config.alt_curve_min_rel_qual = 20; | ||
| 476 : | } | ||
| 477 : | else | ||
| 478 : | codec->config.alt_curve_min_rel_qual = 100; | ||
| 479 : | } | ||
| 480 : | twopass->alt_curve_mid_qual = (1.0 + (double)codec->config.alt_curve_min_rel_qual / 100.0) / 2.0; | ||
| 481 : | twopass->alt_curve_qual_dev = 1.0 - twopass->alt_curve_mid_qual; | ||
| 482 : | if (codec->config.alt_curve_low_dist > 100) | ||
| 483 : | { | ||
| 484 : | switch(codec->config.alt_curve_type) | ||
| 485 : | { | ||
| 486 : | case 2: // Sine Curve (high aggressiveness) | ||
| 487 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 488 : | sin(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff))); | ||
| 489 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 490 : | sin(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff)); | ||
| 491 : | break; | ||
| 492 : | case 1: // Linear (medium aggressiveness) | ||
| 493 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 494 : | twopass->average_frame / twopass->alt_curve_low_diff); | ||
| 495 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 496 : | twopass->average_frame / twopass->alt_curve_low_diff; | ||
| 497 : | break; | ||
| 498 : | case 0: // Cosine Curve (low aggressiveness) | ||
| 499 : | twopass->alt_curve_qual_dev *= 2.0 / (1.0 + | ||
| 500 : | (1.0 - cos(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff)))); | ||
| 501 : | twopass->alt_curve_mid_qual = 1.0 - twopass->alt_curve_qual_dev * | ||
| 502 : | (1.0 - cos(DEG2RAD * (twopass->average_frame * 90.0 / twopass->alt_curve_low_diff))); | ||
| 503 : | } | ||
| 504 : | } | ||
| 505 : | } | ||
| 506 : | |||
| 507 : | while (1) | ||
| 508 : | { | ||
| 509 : | if (!ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, NULL) || read != sizeof(NNSTATS)) | ||
| 510 : | { | ||
| 511 : | DWORD err = GetLastError(); | ||
| 512 : | |||
| 513 : | if (err == ERROR_HANDLE_EOF || err == ERROR_SUCCESS) | ||
| 514 : | { | ||
| 515 : | break; | ||
| 516 : | } | ||
| 517 : | else | ||
| 518 : | { | ||
| 519 : | CloseHandle(twopass->stats1); | ||
| 520 : | twopass->stats1 = INVALID_HANDLE_VALUE; | ||
| 521 : | DEBUGERR("2pass init error - incomplete stats2 record?"); | ||
| 522 : | return ICERR_ERROR; | ||
| 523 : | } | ||
| 524 : | } | ||
| 525 : | |||
| 526 : | h | 527 | if (frames == 0) |
| 527 : | { | ||
| 528 : | twopass->minpsize = (twopass->nns1.kblk + 88) / 8; | ||
| 529 : | twopass->minisize = ((twopass->nns1.kblk * 22) + 240) / 8; | ||
| 530 : | } | ||
| 531 : | |||
| 532 : | h | 102 | if (!codec_is_in_credits(&codec->config, frames) && |
| 533 : | !(twopass->nns1.quant & NNSTATS_KEYFRAME)) | ||
| 534 : | { | ||
| 535 : | h | 527 | dbytes = twopass->nns1.bytes / twopass->movie_curve; |
| 536 : | h | 102 | total1 += dbytes; |
| 537 : | |||
| 538 : | if (codec->config.use_alt_curve) | ||
| 539 : | { | ||
| 540 : | if (dbytes > twopass->average_frame) | ||
| 541 : | { | ||
| 542 : | if (dbytes >= twopass->alt_curve_high) | ||
| 543 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); |
| 544 : | h | 102 | else |
| 545 : | { | ||
| 546 : | switch(codec->config.alt_curve_type) | ||
| 547 : | { | ||
| 548 : | case 2: | ||
| 549 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 550 : | h | 102 | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); |
| 551 : | break; | ||
| 552 : | case 1: | ||
| 553 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 554 : | h | 102 | (dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); |
| 555 : | break; | ||
| 556 : | case 0: | ||
| 557 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 558 : | h | 102 | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); |
| 559 : | } | ||
| 560 : | } | ||
| 561 : | } | ||
| 562 : | else | ||
| 563 : | { | ||
| 564 : | if (dbytes <= twopass->alt_curve_low) | ||
| 565 : | h | 527 | dbytes2 = dbytes; |
| 566 : | h | 102 | else |
| 567 : | { | ||
| 568 : | switch(codec->config.alt_curve_type) | ||
| 569 : | { | ||
| 570 : | case 2: | ||
| 571 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 572 : | h | 102 | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); |
| 573 : | break; | ||
| 574 : | case 1: | ||
| 575 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * |
| 576 : | h | 102 | (dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); |
| 577 : | break; | ||
| 578 : | case 0: | ||
| 579 : | h | 527 | dbytes2 = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * |
| 580 : | h | 102 | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); |
| 581 : | } | ||
| 582 : | } | ||
| 583 : | } | ||
| 584 : | } | ||
| 585 : | else | ||
| 586 : | { | ||
| 587 : | if (dbytes > twopass->average_frame) | ||
| 588 : | { | ||
| 589 : | h | 527 | dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
| 590 : | h | 102 | codec->config.curve_compression_high / 100.0); |
| 591 : | } | ||
| 592 : | else | ||
| 593 : | { | ||
| 594 : | h | 527 | dbytes2 = ((double)dbytes + (twopass->average_frame - dbytes) * |
| 595 : | h | 102 | codec->config.curve_compression_low / 100.0); |
| 596 : | } | ||
| 597 : | } | ||
| 598 : | h | 527 | |
| 599 : | if (dbytes2 < twopass->minpsize) | ||
| 600 : | dbytes2 = twopass->minpsize; | ||
| 601 : | |||
| 602 : | total2 += dbytes2; | ||
| 603 : | h | 102 | } |
| 604 : | |||
| 605 : | ++frames; | ||
| 606 : | } | ||
| 607 : | |||
| 608 : | twopass->curve_comp_scale = total1 / total2; | ||
| 609 : | |||
| 610 : | if (!codec->config.use_alt_curve) | ||
| 611 : | { | ||
| 612 : | int asymmetric_average_frame; | ||
| 613 : | char s[100]; | ||
| 614 : | |||
| 615 : | asymmetric_average_frame = (int)(twopass->average_frame * twopass->curve_comp_scale); | ||
| 616 : | wsprintf(s, "middle frame size for asymmetric curve compression: %i", asymmetric_average_frame); | ||
| 617 : | DEBUG2P(s); | ||
| 618 : | } | ||
| 619 : | |||
| 620 : | SetFilePointer(twopass->stats1, sizeof(DWORD), 0, FILE_BEGIN); | ||
| 621 : | } | ||
| 622 : | |||
| 623 : | if (codec->config.use_alt_curve) | ||
| 624 : | { | ||
| 625 : | if (codec->config.alt_curve_use_auto_bonus_bias) | ||
| 626 : | codec->config.alt_curve_bonus_bias = codec->config.alt_curve_min_rel_qual; | ||
| 627 : | |||
| 628 : | twopass->curve_bias_bonus = (total1 - total2) * (double)codec->config.alt_curve_bonus_bias / 100.0 / (double)(frames - credits_frames - i_frames); | ||
| 629 : | twopass->curve_comp_scale = ((total1 - total2) * (1.0 - (double)codec->config.alt_curve_bonus_bias / 100.0) + total2) / total2; | ||
| 630 : | |||
| 631 : | |||
| 632 : | // special info for alt curve: bias bonus and quantizer thresholds, | ||
| 633 : | { | ||
| 634 : | double curve_temp, dbytes; | ||
| 635 : | char s[100]; | ||
| 636 : | int i, newquant, percent; | ||
| 637 : | int oldquant = 1; | ||
| 638 : | |||
| 639 : | wsprintf(s, "avg scaled framesize:%i", (int)(twopass->average_frame)); | ||
| 640 : | DEBUG2P(s); | ||
| 641 : | |||
| 642 : | wsprintf(s, "bias bonus:%i bytes", (int)(twopass->curve_bias_bonus)); | ||
| 643 : | DEBUG2P(s); | ||
| 644 : | |||
| 645 : | for (i=1; i <= (int)(twopass->alt_curve_high*2)+1; i++) | ||
| 646 : | { | ||
| 647 : | dbytes = i; | ||
| 648 : | if (dbytes > twopass->average_frame) | ||
| 649 : | { | ||
| 650 : | if (dbytes >= twopass->alt_curve_high) | ||
| 651 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); | ||
| 652 : | else | ||
| 653 : | { | ||
| 654 : | switch(codec->config.alt_curve_type) | ||
| 655 : | { | ||
| 656 : | case 2: | ||
| 657 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 658 : | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); | ||
| 659 : | break; | ||
| 660 : | case 1: | ||
| 661 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 662 : | (dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); | ||
| 663 : | break; | ||
| 664 : | case 0: | ||
| 665 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 666 : | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); | ||
| 667 : | } | ||
| 668 : | } | ||
| 669 : | } | ||
| 670 : | else | ||
| 671 : | { | ||
| 672 : | if (dbytes <= twopass->alt_curve_low) | ||
| 673 : | curve_temp = dbytes; | ||
| 674 : | else | ||
| 675 : | { | ||
| 676 : | switch(codec->config.alt_curve_type) | ||
| 677 : | { | ||
| 678 : | case 2: | ||
| 679 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 680 : | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); | ||
| 681 : | break; | ||
| 682 : | case 1: | ||
| 683 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 684 : | (dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); | ||
| 685 : | break; | ||
| 686 : | case 0: | ||
| 687 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * | ||
| 688 : | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); | ||
| 689 : | } | ||
| 690 : | } | ||
| 691 : | } | ||
| 692 : | |||
| 693 : | if (twopass->movie_curve > 1.0) | ||
| 694 : | dbytes *= twopass->movie_curve; | ||
| 695 : | |||
| 696 : | newquant = (int)(dbytes * 2.0 / (curve_temp * twopass->curve_comp_scale + twopass->curve_bias_bonus)); | ||
| 697 : | if (newquant > 1) | ||
| 698 : | { | ||
| 699 : | if (newquant != oldquant) | ||
| 700 : | { | ||
| 701 : | oldquant = newquant; | ||
| 702 : | percent = (int)((i - twopass->average_frame) * 100.0 / twopass->average_frame); | ||
| 703 : | wsprintf(s, "quant:%i threshold at %i : %i percent", newquant, i, percent); | ||
| 704 : | DEBUG2P(s); | ||
| 705 : | } | ||
| 706 : | } | ||
| 707 : | } | ||
| 708 : | } | ||
| 709 : | } | ||
| 710 : | |||
| 711 : | twopass->overflow = 0; | ||
| 712 : | Foxer | 342 | twopass->KFoverflow = 0; |
| 713 : | twopass->KFoverflow_partial = 0; | ||
| 714 : | twopass->KF_idx = 1; | ||
| 715 : | h | 102 | |
| 716 : | break; | ||
| 717 : | } | ||
| 718 : | |||
| 719 : | return ICERR_OK; | ||
| 720 : | } | ||
| 721 : | |||
| 722 : | |||
| 723 : | int codec_2pass_get_quant(CODEC* codec, XVID_ENC_FRAME* frame) | ||
| 724 : | { | ||
| 725 : | static double quant_error[32]; | ||
| 726 : | static double curve_comp_error; | ||
| 727 : | static int last_quant; | ||
| 728 : | |||
| 729 : | TWOPASS * twopass = &codec->twopass; | ||
| 730 : | |||
| 731 : | DWORD read; | ||
| 732 : | int bytes1, bytes2; | ||
| 733 : | int overflow; | ||
| 734 : | int credits_pos; | ||
| 735 : | h | 109 | int capped_to_max_framesize = 0; |
| 736 : | Foxer | 343 | int KFdistance, KF_min_size; |
| 737 : | h | 102 | |
| 738 : | if (codec->framenum == 0) | ||
| 739 : | { | ||
| 740 : | int i; | ||
| 741 : | |||
| 742 : | for (i=0 ; i<32 ; ++i) | ||
| 743 : | { | ||
| 744 : | quant_error[i] = 0.0; | ||
| 745 : | h | 105 | twopass->quant_count[i] = 0; |
| 746 : | h | 102 | } |
| 747 : | |||
| 748 : | curve_comp_error = 0.0; | ||
| 749 : | last_quant = 0; | ||
| 750 : | } | ||
| 751 : | |||
| 752 : | if (ReadFile(twopass->stats1, &twopass->nns1, sizeof(NNSTATS), &read, 0) == 0 || read != sizeof(NNSTATS)) | ||
| 753 : | { | ||
| 754 : | DEBUGERR("2ndpass quant: couldn't read from stats1"); | ||
| 755 : | return ICERR_ERROR; | ||
| 756 : | } | ||
| 757 : | if (codec->config.mode == DLG_MODE_2PASS_2_EXT) | ||
| 758 : | { | ||
| 759 : | if (ReadFile(twopass->stats2, &twopass->nns2, sizeof(NNSTATS), &read, 0) == 0 || read != sizeof(NNSTATS)) | ||
| 760 : | { | ||
| 761 : | DEBUGERR("2ndpass quant: couldn't read from stats2"); | ||
| 762 : | return ICERR_ERROR; | ||
| 763 : | } | ||
| 764 : | } | ||
| 765 : | |||
| 766 : | bytes1 = twopass->nns1.bytes; | ||
| 767 : | overflow = twopass->overflow / 8; | ||
| 768 : | |||
| 769 : | // override codec i-frame choice (reenable in credits) | ||
| 770 : | frame->intra = (twopass->nns1.quant & NNSTATS_KEYFRAME); | ||
| 771 : | |||
| 772 : | if (frame->intra) | ||
| 773 : | { | ||
| 774 : | overflow = 0; | ||
| 775 : | } | ||
| 776 : | |||
| 777 : | credits_pos = codec_is_in_credits(&codec->config, codec->framenum); | ||
| 778 : | |||
| 779 : | if (credits_pos) | ||
| 780 : | { | ||
| 781 : | if (codec->config.mode == DLG_MODE_2PASS_2_INT) | ||
| 782 : | { | ||
| 783 : | switch (codec->config.credits_mode) | ||
| 784 : | { | ||
| 785 : | case CREDITS_MODE_RATE : | ||
| 786 : | case CREDITS_MODE_SIZE : | ||
| 787 : | if (credits_pos == CREDITS_START) | ||
| 788 : | { | ||
| 789 : | bytes2 = (int)(bytes1 / twopass->credits_start_curve); | ||
| 790 : | } | ||
| 791 : | else // CREDITS_END | ||
| 792 : | { | ||
| 793 : | bytes2 = (int)(bytes1 / twopass->credits_end_curve); | ||
| 794 : | } | ||
| 795 : | |||
| 796 : | frame->intra = -1; | ||
| 797 : | break; | ||
| 798 : | |||
| 799 : | case CREDITS_MODE_QUANT : | ||
| 800 : | if (codec->config.credits_quant_i != codec->config.credits_quant_p) | ||
| 801 : | { | ||
| 802 : | frame->quant = frame->intra ? | ||
| 803 : | codec->config.credits_quant_i : | ||
| 804 : | codec->config.credits_quant_p; | ||
| 805 : | } | ||
| 806 : | else | ||
| 807 : | { | ||
| 808 : | frame->quant = codec->config.credits_quant_p; | ||
| 809 : | frame->intra = -1; | ||
| 810 : | } | ||
| 811 : | |||
| 812 : | twopass->bytes1 = bytes1; | ||
| 813 : | twopass->bytes2 = bytes1; | ||
| 814 : | twopass->desired_bytes2 = bytes1; | ||
| 815 : | return ICERR_OK; | ||
| 816 : | } | ||
| 817 : | } | ||
| 818 : | else // DLG_MODE_2PASS_2_EXT | ||
| 819 : | { | ||
| 820 : | h | 482 | if (codec->config.credits_mode == CREDITS_MODE_QUANT) |
| 821 : | { | ||
| 822 : | if (codec->config.credits_quant_i != codec->config.credits_quant_p) | ||
| 823 : | { | ||
| 824 : | frame->quant = frame->intra ? | ||
| 825 : | codec->config.credits_quant_i : | ||
| 826 : | codec->config.credits_quant_p; | ||
| 827 : | } | ||
| 828 : | else | ||
| 829 : | { | ||
| 830 : | frame->quant = codec->config.credits_quant_p; | ||
| 831 : | frame->intra = -1; | ||
| 832 : | } | ||
| 833 : | |||
| 834 : | twopass->bytes1 = bytes1; | ||
| 835 : | twopass->bytes2 = bytes1; | ||
| 836 : | twopass->desired_bytes2 = bytes1; | ||
| 837 : | return ICERR_OK; | ||
| 838 : | } | ||
| 839 : | else | ||
| 840 : | bytes2 = twopass->nns2.bytes; | ||
| 841 : | h | 102 | } |
| 842 : | } | ||
| 843 : | else // Foxer: apply curve compression outside credits | ||
| 844 : | { | ||
| 845 : | double dbytes, curve_temp; | ||
| 846 : | |||
| 847 : | bytes2 = (codec->config.mode == DLG_MODE_2PASS_2_INT) ? bytes1 : twopass->nns2.bytes; | ||
| 848 : | |||
| 849 : | if (frame->intra) | ||
| 850 : | { | ||
| 851 : | dbytes = ((int)(bytes2 + bytes2 * codec->config.keyframe_boost / 100)) / | ||
| 852 : | twopass->movie_curve; | ||
| 853 : | } | ||
| 854 : | else | ||
| 855 : | { | ||
| 856 : | dbytes = bytes2 / twopass->movie_curve; | ||
| 857 : | } | ||
| 858 : | |||
| 859 : | // spread the compression error across payback_delay frames | ||
| 860 : | if (codec->config.bitrate_payback_method == 0) | ||
| 861 : | { | ||
| 862 : | bytes2 = (int)(curve_comp_error / codec->config.bitrate_payback_delay); | ||
| 863 : | } | ||
| 864 : | else | ||
| 865 : | { | ||
| 866 : | bytes2 = (int)(curve_comp_error * dbytes / | ||
| 867 : | twopass->average_frame / codec->config.bitrate_payback_delay); | ||
| 868 : | |||
| 869 : | if (labs(bytes2) > fabs(curve_comp_error)) | ||
| 870 : | { | ||
| 871 : | bytes2 = (int)curve_comp_error; | ||
| 872 : | } | ||
| 873 : | } | ||
| 874 : | |||
| 875 : | curve_comp_error -= bytes2; | ||
| 876 : | |||
| 877 : | if (codec->config.use_alt_curve) | ||
| 878 : | { | ||
| 879 : | if (!frame->intra) | ||
| 880 : | { | ||
| 881 : | if (dbytes > twopass->average_frame) | ||
| 882 : | { | ||
| 883 : | if (dbytes >= twopass->alt_curve_high) | ||
| 884 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev); | ||
| 885 : | else | ||
| 886 : | { | ||
| 887 : | switch(codec->config.alt_curve_type) | ||
| 888 : | { | ||
| 889 : | case 2: | ||
| 890 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 891 : | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff))); | ||
| 892 : | break; | ||
| 893 : | case 1: | ||
| 894 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 895 : | (dbytes - twopass->average_frame) / twopass->alt_curve_high_diff); | ||
| 896 : | break; | ||
| 897 : | case 0: | ||
| 898 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 899 : | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_high_diff)))); | ||
| 900 : | } | ||
| 901 : | } | ||
| 902 : | } | ||
| 903 : | else | ||
| 904 : | { | ||
| 905 : | if (dbytes <= twopass->alt_curve_low) | ||
| 906 : | curve_temp = dbytes; | ||
| 907 : | else | ||
| 908 : | { | ||
| 909 : | switch(codec->config.alt_curve_type) | ||
| 910 : | { | ||
| 911 : | case 2: | ||
| 912 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 913 : | sin(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff))); | ||
| 914 : | break; | ||
| 915 : | case 1: | ||
| 916 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual - twopass->alt_curve_qual_dev * | ||
| 917 : | (dbytes - twopass->average_frame) / twopass->alt_curve_low_diff); | ||
| 918 : | break; | ||
| 919 : | case 0: | ||
| 920 : | curve_temp = dbytes * (twopass->alt_curve_mid_qual + twopass->alt_curve_qual_dev * | ||
| 921 : | (1.0 - cos(DEG2RAD * ((dbytes - twopass->average_frame) * 90.0 / twopass->alt_curve_low_diff)))); | ||
| 922 : | } | ||
| 923 : | } | ||
| 924 : | } | ||
| 925 : | curve_temp = curve_temp * twopass->curve_comp_scale + twopass->curve_bias_bonus; | ||
| 926 : | |||
| 927 : | bytes2 += ((int)curve_temp); | ||
| 928 : | curve_comp_error += curve_temp - ((int)curve_temp); | ||
| 929 : | } | ||
| 930 : | else | ||
| 931 : | { | ||
| 932 : | curve_comp_error += dbytes - ((int)dbytes); | ||
| 933 : | bytes2 += ((int)dbytes); | ||
| 934 : | } | ||
| 935 : | } | ||
| 936 : | else if ((codec->config.curve_compression_high + codec->config.curve_compression_low) && | ||
| 937 : | !frame->intra) | ||
| 938 : | { | ||
| 939 : | if (dbytes > twopass->average_frame) | ||
| 940 : | { | ||
| 941 : | curve_temp = twopass->curve_comp_scale * | ||
| 942 : | ((double)dbytes + (twopass->average_frame - dbytes) * | ||
| 943 : | codec->config.curve_compression_high / 100.0); | ||
| 944 : | } | ||
| 945 : | else | ||
| 946 : | { | ||
| 947 : | curve_temp = twopass->curve_comp_scale * | ||
| 948 : | ((double)dbytes + (twopass->average_frame - dbytes) * | ||
| 949 : | codec->config.curve_compression_low / 100.0); | ||
| 950 : | } | ||
| 951 : | |||
| 952 : | bytes2 += ((int)curve_temp); | ||
| 953 : | curve_comp_error += curve_temp - ((int)curve_temp); | ||
| 954 : | } | ||
| 955 : | else | ||
| 956 : | { | ||
| 957 : | curve_comp_error += dbytes - ((int)dbytes); | ||
| 958 : | bytes2 += ((int)dbytes); | ||
| 959 : | } | ||
| 960 : | |||
| 961 : | h | 527 | if (frame->intra) |
| 962 : | h | 102 | { |
| 963 : | h | 527 | if (bytes2 < twopass->minisize) |
| 964 : | { | ||
| 965 : | curve_comp_error -= twopass->minisize - bytes2; | ||
| 966 : | bytes2 = twopass->minisize; | ||
| 967 : | } | ||
| 968 : | h | 102 | } |
| 969 : | h | 527 | else |
| 970 : | h | 102 | { |
| 971 : | h | 527 | // cap bytes2 to first pass size, lowers number of quant=1 frames |
| 972 : | if (bytes2 > bytes1) | ||
| 973 : | { | ||
| 974 : | curve_comp_error += bytes2 - bytes1; | ||
| 975 : | bytes2 = bytes1; | ||
| 976 : | } | ||
| 977 : | else if (bytes2 < twopass->minpsize) | ||
| 978 : | bytes2 = twopass->minpsize; | ||
| 979 : | h | 102 | } |
| 980 : | } | ||
| 981 : | |||
| 982 : | twopass->desired_bytes2 = bytes2; | ||
| 983 : | |||
| 984 : | Foxer | 365 | // if this keyframe is too close to the next, |
| 985 : | // reduce it's byte allotment | ||
| 986 : | if (frame->intra && !credits_pos) | ||
| 987 : | Foxer | 343 | { |
| 988 : | KFdistance = codec->twopass.keyframe_locations[codec->twopass.KF_idx] - | ||
| 989 : | codec->twopass.keyframe_locations[codec->twopass.KF_idx - 1]; | ||
| 990 : | |||
| 991 : | if (KFdistance < codec->config.kftreshold) | ||
| 992 : | { | ||
| 993 : | KFdistance = KFdistance - codec->config.min_key_interval; | ||
| 994 : | |||
| 995 : | if (KFdistance >= 0) | ||
| 996 : | { | ||
| 997 : | KF_min_size = bytes2 * (100 - codec->config.kfreduction) / 100; | ||
| 998 : | if (KF_min_size < 1) | ||
| 999 : | KF_min_size = 1; | ||
| 1000 : | |||
| 1001 : | bytes2 = KF_min_size + (bytes2 - KF_min_size) * KFdistance / | ||
| 1002 : | (codec->config.kftreshold - codec->config.min_key_interval); | ||
| 1003 : | |||
| 1004 : | if (bytes2 < 1) | ||
| 1005 : | bytes2 = 1; | ||
| 1006 : | } | ||
| 1007 : | } | ||
| 1008 : | } | ||
| 1009 : | |||
| 1010 : | h | 102 | // Foxer: scale overflow in relation to average size, so smaller frames don't get |
| 1011 : | // too much/little bitrate | ||
| 1012 : | h | 527 | overflow = (int)((double)overflow * bytes2 / twopass->average_frame * |
| 1013 : | (bytes1 - bytes2) / bytes1); | ||
| 1014 : | h | 102 | |
| 1015 : | // Foxer: reign in overflow with huge frames | ||
| 1016 : | if (labs(overflow) > labs(twopass->overflow)) | ||
| 1017 : | { | ||
| 1018 : | overflow = twopass->overflow; | ||
| 1019 : | } | ||
| 1020 : | |||
| 1021 : | // Foxer: make sure overflow doesn't run away | ||
| 1022 : | h | 109 | if (overflow > bytes2 * codec->config.twopass_max_overflow_improvement / 100) |
| 1023 : | h | 102 | { |
| 1024 : | h | 109 | bytes2 += (overflow <= bytes2) ? bytes2 * codec->config.twopass_max_overflow_improvement / 100 : |
| 1025 : | overflow * codec->config.twopass_max_overflow_improvement / 100; | ||
| 1026 : | h | 102 | } |
| 1027 : | h | 109 | else if (overflow < bytes2 * codec->config.twopass_max_overflow_degradation / -100) |
| 1028 : | h | 102 | { |
| 1029 : | h | 109 | bytes2 += bytes2 * codec->config.twopass_max_overflow_degradation / -100; |
| 1030 : | h | 102 | } |
| 1031 : | else | ||
| 1032 : | { | ||
| 1033 : | bytes2 += overflow; | ||
| 1034 : | } | ||
| 1035 : | |||
| 1036 : | h | 109 | if (bytes2 > twopass->max_framesize) |
| 1037 : | { | ||
| 1038 : | capped_to_max_framesize = 1; | ||
| 1039 : | bytes2 = twopass->max_framesize; | ||
| 1040 : | } | ||
| 1041 : | |||
| 1042 : | h | 102 | if (bytes2 < 1) |
| 1043 : | { | ||
| 1044 : | bytes2 = 1; | ||
| 1045 : | } | ||
| 1046 : | |||
| 1047 : | twopass->bytes1 = bytes1; | ||
| 1048 : | twopass->bytes2 = bytes2; | ||
| 1049 : | |||
| 1050 : | // very 'simple' quant<->filesize relationship | ||
| 1051 : | frame->quant = ((twopass->nns1.quant & ~NNSTATS_KEYFRAME) * bytes1) / bytes2; | ||
| 1052 : | |||
| 1053 : | if (frame->quant < 1) | ||
| 1054 : | { | ||
| 1055 : | frame->quant = 1; | ||
| 1056 : | } | ||
| 1057 : | else if (frame->quant > 31) | ||
| 1058 : | { | ||
| 1059 : | frame->quant = 31; | ||
| 1060 : | } | ||
| 1061 : | else if (!frame->intra) | ||
| 1062 : | { | ||
| 1063 : | // Foxer: aid desired quantizer precision by accumulating decision error | ||
| 1064 : | quant_error[frame->quant] += ((double)((twopass->nns1.quant & ~NNSTATS_KEYFRAME) * | ||
| 1065 : | bytes1) / bytes2) - frame->quant; | ||
| 1066 : | |||
| 1067 : | if (quant_error[frame->quant] >= 1.0) | ||
| 1068 : | { | ||
| 1069 : | quant_error[frame->quant] -= 1.0; | ||
| 1070 : | ++frame->quant; | ||
| 1071 : | } | ||
| 1072 : | } | ||
| 1073 : | |||
| 1074 : | // we're done with credits | ||
| 1075 : | if (codec_is_in_credits(&codec->config, codec->framenum)) | ||
| 1076 : | { | ||
| 1077 : | return ICERR_OK; | ||
| 1078 : | } | ||
| 1079 : | |||
| 1080 : | if (frame->intra) | ||
| 1081 : | { | ||
| 1082 : | if (frame->quant < codec->config.min_iquant) | ||
| 1083 : | { | ||
| 1084 : | frame->quant = codec->config.min_iquant; | ||
| 1085 : | DEBUG2P("I-frame quantizer raised"); | ||
| 1086 : | } | ||
| 1087 : | if (frame->quant > codec->config.max_iquant) | ||
| 1088 : | { | ||
| 1089 : | frame->quant = codec->config.max_iquant; | ||
| 1090 : | DEBUG2P("I-frame quantizer lowered"); | ||
| 1091 : | } | ||
| 1092 : | } | ||
| 1093 : | else | ||
| 1094 : | { | ||
| 1095 : | if (frame->quant > codec->config.max_pquant) | ||
| 1096 : | { | ||
| 1097 : | frame->quant = codec->config.max_pquant; | ||
| 1098 : | } | ||
| 1099 : | if (frame->quant < codec->config.min_pquant) | ||
| 1100 : | { | ||
| 1101 : | frame->quant = codec->config.min_pquant; | ||
| 1102 : | } | ||
| 1103 : | |||
| 1104 : | // subsequent frame quants can only be +- 2 | ||
| 1105 : | h | 109 | if (last_quant && capped_to_max_framesize == 0) |
| 1106 : | h | 102 | { |
| 1107 : | if (frame->quant > last_quant + 2) | ||
| 1108 : | { | ||
| 1109 : | frame->quant = last_quant + 2; | ||
| 1110 : | DEBUG2P("P-frame quantizer prevented from rising too steeply"); | ||
| 1111 : | } | ||
| 1112 : | if (frame->quant < last_quant - 2) | ||
| 1113 : | { | ||
| 1114 : | frame->quant = last_quant - 2; | ||
| 1115 : | DEBUG2P("P-frame quantizer prevented from falling too steeply"); | ||
| 1116 : | } | ||
| 1117 : | } | ||
| 1118 : | } | ||
| 1119 : | |||
| 1120 : | h | 109 | if (capped_to_max_framesize == 0) |
| 1121 : | last_quant = frame->quant; | ||
| 1122 : | h | 102 | |
| 1123 : | if (codec->config.quant_type == QUANT_MODE_MOD) | ||
| 1124 : | { | ||
| 1125 : | frame->general |= (frame->quant < 4) ? XVID_MPEGQUANT : XVID_H263QUANT; | ||
| 1126 : | frame->general &= (frame->quant < 4) ? ~XVID_H263QUANT : ~XVID_MPEGQUANT; | ||
| 1127 : | } | ||
| 1128 : | |||
| 1129 : | return ICERR_OK; | ||
| 1130 : | } | ||
| 1131 : | |||
| 1132 : | |||
| 1133 : | int codec_2pass_update(CODEC* codec, XVID_ENC_FRAME* frame, XVID_ENC_STATS* stats) | ||
| 1134 : | { | ||
| 1135 : | static __int64 total_size; | ||
| 1136 : | |||
| 1137 : | NNSTATS nns1; | ||
| 1138 : | DWORD wrote; | ||
| 1139 : | Foxer | 342 | int credits_pos, tempdiv; |
| 1140 : | h | 102 | char* quant_type; |
| 1141 : | |||
| 1142 : | if (codec->framenum == 0) | ||
| 1143 : | { | ||
| 1144 : | total_size = 0; | ||
| 1145 : | } | ||
| 1146 : | |||
| 1147 : | quant_type = (frame->general & XVID_H263QUANT) ? "H.263" : | ||
| 1148 : | ((frame->general & XVID_MPEGQUANT) && (frame->general & XVID_CUSTOM_QMATRIX)) ? | ||
| 1149 : | "Cust" : "MPEG"; | ||
| 1150 : | |||
| 1151 : | switch (codec->config.mode) | ||
| 1152 : | { | ||
| 1153 : | case DLG_MODE_2PASS_1 : | ||
| 1154 : | nns1.bytes = frame->length; // total bytes | ||
| 1155 : | nns1.dd_v = stats->hlength; // header bytes | ||
| 1156 : | |||
| 1157 : | nns1.dd_u = nns1.dd_y = 0; | ||
| 1158 : | nns1.dk_v = nns1.dk_u = nns1.dk_y = 0; | ||
| 1159 : | nns1.md_u = nns1.md_y = 0; | ||
| 1160 : | nns1.mk_u = nns1.mk_y = 0; | ||
| 1161 : | |||
| 1162 : | h | 127 | // nns1.quant = stats->quant; |
| 1163 : | nns1.quant = 2; // ugly fix for lumi masking in 1st pass returning new quant | ||
| 1164 : | h | 102 | if (frame->intra) |
| 1165 : | { | ||
| 1166 : | nns1.quant |= NNSTATS_KEYFRAME; | ||
| 1167 : | } | ||
| 1168 : | nns1.kblk = stats->kblks; | ||
| 1169 : | nns1.mblk = stats->mblks; | ||
| 1170 : | nns1.ublk = stats->ublks; | ||
| 1171 : | nns1.lum_noise[0] = nns1.lum_noise[1] = 1; | ||
| 1172 : | |||
| 1173 : | total_size += frame->length; | ||
| 1174 : | |||
| 1175 : | DEBUG1ST(frame->length, (int)total_size/1024, frame->intra, frame->quant, quant_type, stats->kblks, stats->mblks) | ||
| 1176 : | |||
| 1177 : | if (WriteFile(codec->twopass.stats1, &nns1, sizeof(NNSTATS), &wrote, 0) == 0 || wrote != sizeof(NNSTATS)) | ||
| 1178 : | { | ||
| 1179 : | DEBUGERR("stats1: WriteFile error"); | ||
| 1180 : | return ICERR_ERROR; | ||
| 1181 : | } | ||
| 1182 : | break; | ||
| 1183 : | |||
| 1184 : | case DLG_MODE_2PASS_2_INT : | ||
| 1185 : | case DLG_MODE_2PASS_2_EXT : | ||
| 1186 : | h | 105 | credits_pos = codec_is_in_credits(&codec->config, codec->framenum); |
| 1187 : | if (!credits_pos) | ||
| 1188 : | Foxer | 342 | { |
| 1189 : | h | 105 | codec->twopass.quant_count[frame->quant]++; |
| 1190 : | Foxer | 342 | if ((codec->twopass.nns1.quant & NNSTATS_KEYFRAME)) |
| 1191 : | { | ||
| 1192 : | Foxer | 365 | // calculate how much to distribute per frame in |
| 1193 : | // order to make up for this keyframe's overflow | ||
| 1194 : | |||
| 1195 : | Foxer | 342 | codec->twopass.overflow += codec->twopass.KFoverflow; |
| 1196 : | codec->twopass.KFoverflow = codec->twopass.desired_bytes2 - frame->length; | ||
| 1197 : | h | 105 | |
| 1198 : | Foxer | 342 | tempdiv = (codec->twopass.keyframe_locations[codec->twopass.KF_idx] - |
| 1199 : | codec->twopass.keyframe_locations[codec->twopass.KF_idx - 1]); | ||
| 1200 : | |||
| 1201 : | if (tempdiv > 1) | ||
| 1202 : | { | ||
| 1203 : | // non-consecutive keyframes | ||
| 1204 : | codec->twopass.KFoverflow_partial = codec->twopass.KFoverflow / (tempdiv - 1); | ||
| 1205 : | } | ||
| 1206 : | else | ||
| 1207 : | { | ||
| 1208 : | // consecutive keyframes | ||
| 1209 : | codec->twopass.overflow += codec->twopass.KFoverflow; | ||
| 1210 : | codec->twopass.KFoverflow = 0; | ||
| 1211 : | codec->twopass.KFoverflow_partial = 0; | ||
| 1212 : | } | ||
| 1213 : | codec->twopass.KF_idx++; | ||
| 1214 : | } | ||
| 1215 : | else | ||
| 1216 : | { | ||
| 1217 : | Foxer | 365 | // distribute part of the keyframe overflow |
| 1218 : | |||
| 1219 : | Foxer | 342 | codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length + |
| 1220 : | codec->twopass.KFoverflow_partial; | ||
| 1221 : | codec->twopass.KFoverflow -= codec->twopass.KFoverflow_partial; | ||
| 1222 : | } | ||
| 1223 : | } | ||
| 1224 : | else | ||
| 1225 : | { | ||
| 1226 : | codec->twopass.overflow += codec->twopass.desired_bytes2 - frame->length; | ||
| 1227 : | |||
| 1228 : | // ugly fix for credits.. | ||
| 1229 : | codec->twopass.overflow += codec->twopass.KFoverflow; | ||
| 1230 : | codec->twopass.KFoverflow = 0; | ||
| 1231 : | codec->twopass.KFoverflow_partial = 0; | ||
| 1232 : | // end of ugly fix. | ||
| 1233 : | } | ||
| 1234 : | |||
| 1235 : | h | 105 | DEBUG2ND(frame->quant, quant_type, frame->intra, codec->twopass.bytes1, codec->twopass.desired_bytes2, frame->length, codec->twopass.overflow, credits_pos) |
| 1236 : | h | 102 | break; |
| 1237 : | |||
| 1238 : | default: | ||
| 1239 : | break; | ||
| 1240 : | } | ||
| 1241 : | |||
| 1242 : | return ICERR_OK; | ||
| 1243 : | } | ||
| 1244 : | |||
| 1245 : | h | 105 | void codec_2pass_finish(CODEC* codec) |
| 1246 : | { | ||
| 1247 : | int i; | ||
| 1248 : | char s[100]; | ||
| 1249 : | if (codec->config.mode == DLG_MODE_2PASS_2_EXT || codec->config.mode == DLG_MODE_2PASS_2_INT) | ||
| 1250 : | { | ||
| 1251 : | // output the quantizer distribution for this encode. | ||
| 1252 : | h | 102 | |
| 1253 : | h | 105 | OutputDebugString("Quantizer distribution for 2nd pass:"); |
| 1254 : | for (i=1; i<=31; i++) | ||
| 1255 : | { | ||
| 1256 : | if (codec->twopass.quant_count[i]) | ||
| 1257 : | { | ||
| 1258 : | wsprintf(s, "Q:%i:%i", i, codec->twopass.quant_count[i]); | ||
| 1259 : | OutputDebugString(s); | ||
| 1260 : | } | ||
| 1261 : | } | ||
| 1262 : | return; | ||
| 1263 : | } | ||
| 1264 : | } |
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