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Revision 1.12 - (view) (download)
| 1 : | Isibaar | 1.1 | /************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | edgomez | 1.9 | * OpenDivx API wrapper |
| 5 : | Isibaar | 1.1 | * |
| 6 : | * This program is an implementation of a part of one or more MPEG-4 | ||
| 7 : | * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
| 8 : | * to use this software module in hardware or software products are | ||
| 9 : | * advised that its use may infringe existing patents or copyrights, and | ||
| 10 : | * any such use would be at such party's own risk. The original | ||
| 11 : | * developer of this software module and his/her company, and subsequent | ||
| 12 : | * editors and their companies, will have no liability for use of this | ||
| 13 : | * software or modifications or derivatives thereof. | ||
| 14 : | * | ||
| 15 : | * This program is free software; you can redistribute it and/or modify | ||
| 16 : | * it under the terms of the GNU General Public License as published by | ||
| 17 : | * the Free Software Foundation; either version 2 of the License, or | ||
| 18 : | * (at your option) any later version. | ||
| 19 : | * | ||
| 20 : | * This program is distributed in the hope that it will be useful, | ||
| 21 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 22 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 23 : | * GNU General Public License for more details. | ||
| 24 : | * | ||
| 25 : | * You should have received a copy of the GNU General Public License | ||
| 26 : | * along with this program; if not, write to the Free Software | ||
| 27 : | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 28 : | * | ||
| 29 : | *************************************************************************/ | ||
| 30 : | |||
| 31 : | /************************************************************************** | ||
| 32 : | * | ||
| 33 : | * History: | ||
| 34 : | * | ||
| 35 : | edgomez | 1.11 | * 26.02.2001 fixed dec_csp bugs |
| 36 : | * 26.12.2001 xvid_init() support | ||
| 37 : | * 22.12.2001 removed some compiler warnings | ||
| 38 : | * 16.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> | ||
| 39 : | Isibaar | 1.1 | * |
| 40 : | chl | 1.12 | * $Id: divx4.c,v 1.11 2002/05/04 12:26:06 edgomez Exp $ |
| 41 : | edgomez | 1.10 | * |
| 42 : | Isibaar | 1.1 | *************************************************************************/ |
| 43 : | |||
| 44 : | knhor | 1.7 | #include <stdlib.h> |
| 45 : | edgomez | 1.9 | #include <string.h> |
| 46 : | edgomez | 1.11 | #include <stdio.h> |
| 47 : | Isibaar | 1.1 | |
| 48 : | #include "xvid.h" | ||
| 49 : | #include "divx4.h" | ||
| 50 : | #include "decoder.h" | ||
| 51 : | #include "encoder.h" | ||
| 52 : | |||
| 53 : | #define EMULATED_DIVX_VERSION 20011001 | ||
| 54 : | |||
| 55 : | edgomez | 1.9 | /************************************************************************** |
| 56 : | * Divx Instance Structure | ||
| 57 : | * | ||
| 58 : | * This chain list datatype allows XviD do instanciate multiples divx4 | ||
| 59 : | * sessions. | ||
| 60 : | * | ||
| 61 : | * ToDo : The way this chain list is used does not guarantee reentrance | ||
| 62 : | * because they are not protected by any kind of mutex to allow | ||
| 63 : | * only one modifier. We should add a mutex for each element in | ||
| 64 : | * the chainlist. | ||
| 65 : | *************************************************************************/ | ||
| 66 : | Isibaar | 1.1 | |
| 67 : | |||
| 68 : | typedef struct DINST | ||
| 69 : | { | ||
| 70 : | unsigned long key; | ||
| 71 : | struct DINST * next; | ||
| 72 : | |||
| 73 : | void * handle; | ||
| 74 : | XVID_DEC_FRAME xframe; | ||
| 75 : | |||
| 76 : | } DINST; | ||
| 77 : | |||
| 78 : | edgomez | 1.11 | typedef struct EINST |
| 79 : | { | ||
| 80 : | struct EINST * next; | ||
| 81 : | |||
| 82 : | void * handle; | ||
| 83 : | int quality; | ||
| 84 : | |||
| 85 : | } EINST; | ||
| 86 : | |||
| 87 : | edgomez | 1.9 | /************************************************************************** |
| 88 : | * Global data (needed to emulate correctly exported symbols from divx4) | ||
| 89 : | *************************************************************************/ | ||
| 90 : | |||
| 91 : | /* This is not used in this module but is required by some divx4 encoders*/ | ||
| 92 : | int quiet_encore = 1; | ||
| 93 : | |||
| 94 : | /************************************************************************** | ||
| 95 : | * Local data | ||
| 96 : | *************************************************************************/ | ||
| 97 : | |||
| 98 : | /* The Divx4 instance chainlist */ | ||
| 99 : | static DINST * dhead = NULL; | ||
| 100 : | edgomez | 1.11 | static EINST * ehead = NULL; |
| 101 : | edgomez | 1.9 | |
| 102 : | /* Divx4 quality to XviD encoder motion flag presets */ | ||
| 103 : | static int const divx4_motion_presets[7] = { | ||
| 104 : | 0, | ||
| 105 : | |||
| 106 : | chl | 1.12 | PMV_EARLYSTOP16, |
| 107 : | edgomez | 1.9 | |
| 108 : | chl | 1.12 | PMV_EARLYSTOP16 | PMV_ADVANCEDDIAMOND16, |
| 109 : | edgomez | 1.9 | |
| 110 : | PMV_EARLYSTOP16 | PMV_HALFPELREFINE16, | ||
| 111 : | |||
| 112 : | PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | | ||
| 113 : | chl | 1.12 | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8, |
| 114 : | edgomez | 1.9 | |
| 115 : | PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | | ||
| 116 : | chl | 1.12 | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8, |
| 117 : | edgomez | 1.9 | |
| 118 : | chl | 1.12 | PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | |
| 119 : | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8 | ||
| 120 : | edgomez | 1.9 | }; |
| 121 : | |||
| 122 : | |||
| 123 : | /* Divx4 quality to general encoder flag presets */ | ||
| 124 : | static int const divx4_general_presets[7] = { | ||
| 125 : | 0, | ||
| 126 : | XVID_H263QUANT, | ||
| 127 : | XVID_H263QUANT, | ||
| 128 : | XVID_H263QUANT | XVID_HALFPEL, | ||
| 129 : | XVID_H263QUANT | XVID_INTER4V | XVID_HALFPEL, | ||
| 130 : | chl | 1.12 | XVID_H263QUANT | XVID_INTER4V | XVID_HALFPEL, |
| 131 : | edgomez | 1.9 | XVID_H263QUANT | XVID_INTER4V | XVID_HALFPEL |
| 132 : | }; | ||
| 133 : | |||
| 134 : | /************************************************************************** | ||
| 135 : | * Local Prototypes | ||
| 136 : | *************************************************************************/ | ||
| 137 : | |||
| 138 : | /* Chain list helper functions */ | ||
| 139 : | static DINST * dinst_find(unsigned long key); | ||
| 140 : | static DINST * dinst_add(unsigned long key); | ||
| 141 : | static void dinst_remove(unsigned long key); | ||
| 142 : | |||
| 143 : | edgomez | 1.11 | static EINST * einst_find(void *handle); |
| 144 : | static EINST * einst_add(void *handle); | ||
| 145 : | static void einst_remove(void *handle); | ||
| 146 : | |||
| 147 : | edgomez | 1.9 | /* Converts divx4 colorspaces codes to xvid codes */ |
| 148 : | static int xvid_to_opendivx_dec_csp(int csp); | ||
| 149 : | static int xvid_to_opendivx_enc_csp(int csp); | ||
| 150 : | |||
| 151 : | /************************************************************************** | ||
| 152 : | * decore part | ||
| 153 : | * | ||
| 154 : | * decore is the divx4 entry point used to decompress the mpeg4 bitstream | ||
| 155 : | * into a user defined image format. | ||
| 156 : | *************************************************************************/ | ||
| 157 : | |||
| 158 : | int | ||
| 159 : | decore(unsigned long key, unsigned long opt, void * param1, void * param2) | ||
| 160 : | { | ||
| 161 : | |||
| 162 : | int xerr; | ||
| 163 : | |||
| 164 : | switch (opt) { | ||
| 165 : | |||
| 166 : | case DEC_OPT_MEMORY_REQS : | ||
| 167 : | { | ||
| 168 : | memset(param2, 0, sizeof(DEC_MEM_REQS)); | ||
| 169 : | return DEC_OK; | ||
| 170 : | } | ||
| 171 : | |||
| 172 : | case DEC_OPT_INIT : | ||
| 173 : | { | ||
| 174 : | XVID_INIT_PARAM xinit; | ||
| 175 : | XVID_DEC_PARAM xparam; | ||
| 176 : | DINST * dcur; | ||
| 177 : | DEC_PARAM * dparam = (DEC_PARAM *)param1; | ||
| 178 : | |||
| 179 : | /* Find the divx4 instance */ | ||
| 180 : | if ((dcur = dinst_find(key)) == NULL) | ||
| 181 : | { | ||
| 182 : | dcur = dinst_add(key); | ||
| 183 : | } | ||
| 184 : | |||
| 185 : | /* | ||
| 186 : | * XviD initialization | ||
| 187 : | * XviD will detect the host cpu type and activate optimized | ||
| 188 : | * functions according to the host cpu features. | ||
| 189 : | */ | ||
| 190 : | xinit.cpu_flags = 0; | ||
| 191 : | xvid_init(NULL, 0, &xinit, NULL); | ||
| 192 : | |||
| 193 : | /* XviD decoder initialization for this instance */ | ||
| 194 : | xparam.width = dparam->x_dim; | ||
| 195 : | xparam.height = dparam->y_dim; | ||
| 196 : | dcur->xframe.colorspace = | ||
| 197 : | xvid_to_opendivx_dec_csp(dparam->output_format); | ||
| 198 : | |||
| 199 : | xerr = decoder_create(&xparam); | ||
| 200 : | |||
| 201 : | /* Store the xvid handle into the divx4 instance chainlist */ | ||
| 202 : | dcur->handle = xparam.handle; | ||
| 203 : | |||
| 204 : | break; | ||
| 205 : | } | ||
| 206 : | |||
| 207 : | case DEC_OPT_RELEASE : | ||
| 208 : | { | ||
| 209 : | DINST * dcur; | ||
| 210 : | |||
| 211 : | /* Find the divx4 instance into the chain list */ | ||
| 212 : | if ((dcur = dinst_find(key)) == NULL) | ||
| 213 : | { | ||
| 214 : | return DEC_EXIT; | ||
| 215 : | } | ||
| 216 : | |||
| 217 : | /* Destroy the XviD decoder attached to this divx4 instance */ | ||
| 218 : | xerr = decoder_destroy(dcur->handle); | ||
| 219 : | |||
| 220 : | /* Remove the divx4 instance from the chainlist */ | ||
| 221 : | dinst_remove(key); | ||
| 222 : | |||
| 223 : | break; | ||
| 224 : | } | ||
| 225 : | |||
| 226 : | case DEC_OPT_SETPP : | ||
| 227 : | { | ||
| 228 : | DINST * dcur; | ||
| 229 : | |||
| 230 : | /* Find the divx4 instance into the chain list */ | ||
| 231 : | if ((dcur = dinst_find(key)) == NULL) | ||
| 232 : | { | ||
| 233 : | return DEC_EXIT; | ||
| 234 : | } | ||
| 235 : | |||
| 236 : | /* | ||
| 237 : | * We return DEC_OK but XviD has no postprocessing implemented | ||
| 238 : | * in core. | ||
| 239 : | */ | ||
| 240 : | return DEC_OK; | ||
| 241 : | } | ||
| 242 : | |||
| 243 : | case DEC_OPT_SETOUT : | ||
| 244 : | { | ||
| 245 : | DINST * dcur; | ||
| 246 : | DEC_PARAM * dparam = (DEC_PARAM *)param1; | ||
| 247 : | |||
| 248 : | if ((dcur = dinst_find(key)) == NULL) | ||
| 249 : | { | ||
| 250 : | return DEC_EXIT; | ||
| 251 : | } | ||
| 252 : | |||
| 253 : | /* Change the output colorspace */ | ||
| 254 : | dcur->xframe.colorspace = | ||
| 255 : | xvid_to_opendivx_dec_csp(dparam->output_format); | ||
| 256 : | |||
| 257 : | return DEC_OK; | ||
| 258 : | } | ||
| 259 : | Isibaar | 1.1 | |
| 260 : | edgomez | 1.9 | case DEC_OPT_FRAME: |
| 261 : | { | ||
| 262 : | int csp_tmp = 0; | ||
| 263 : | DINST * dcur; | ||
| 264 : | DEC_FRAME * dframe = (DEC_FRAME *)param1; | ||
| 265 : | |||
| 266 : | if ((dcur = dinst_find(key)) == NULL) | ||
| 267 : | { | ||
| 268 : | return DEC_EXIT; | ||
| 269 : | } | ||
| 270 : | |||
| 271 : | /* Copy the divx4 fields to the XviD decoder structure */ | ||
| 272 : | dcur->xframe.bitstream = dframe->bitstream; | ||
| 273 : | dcur->xframe.length = dframe->length; | ||
| 274 : | dcur->xframe.image = dframe->bmp; | ||
| 275 : | dcur->xframe.stride = dframe->stride; | ||
| 276 : | |||
| 277 : | /* Does the frame need to be skipped ? */ | ||
| 278 : | if (!dframe->render_flag) | ||
| 279 : | { | ||
| 280 : | /* | ||
| 281 : | * Then we use the null colorspace to force XviD to | ||
| 282 : | * skip the frame. The original colorspace will be | ||
| 283 : | * restored after the decoder call | ||
| 284 : | */ | ||
| 285 : | csp_tmp = dcur->xframe.colorspace; | ||
| 286 : | dcur->xframe.colorspace = XVID_CSP_NULL; | ||
| 287 : | } | ||
| 288 : | |||
| 289 : | /* Decode the bitstream */ | ||
| 290 : | xerr = decoder_decode(dcur->handle, &dcur->xframe); | ||
| 291 : | |||
| 292 : | /* Restore the real colorspace for this instance */ | ||
| 293 : | if (!dframe->render_flag) | ||
| 294 : | { | ||
| 295 : | dcur->xframe.colorspace = csp_tmp; | ||
| 296 : | } | ||
| 297 : | |||
| 298 : | break; | ||
| 299 : | } | ||
| 300 : | |||
| 301 : | case DEC_OPT_FRAME_311 : | ||
| 302 : | /* XviD does not handle Divx ;-) 3.11 yet */ | ||
| 303 : | return DEC_EXIT; | ||
| 304 : | |||
| 305 : | case DEC_OPT_VERSION: | ||
| 306 : | return EMULATED_DIVX_VERSION; | ||
| 307 : | |||
| 308 : | default : | ||
| 309 : | return DEC_EXIT; | ||
| 310 : | } | ||
| 311 : | |||
| 312 : | |||
| 313 : | /* XviD error code -> Divx4 */ | ||
| 314 : | switch(xerr) | ||
| 315 : | { | ||
| 316 : | case XVID_ERR_OK : | ||
| 317 : | return DEC_OK; | ||
| 318 : | case XVID_ERR_MEMORY : | ||
| 319 : | return DEC_MEMORY; | ||
| 320 : | case XVID_ERR_FORMAT : | ||
| 321 : | return DEC_BAD_FORMAT; | ||
| 322 : | default : | ||
| 323 : | return DEC_EXIT; | ||
| 324 : | } | ||
| 325 : | } | ||
| 326 : | |||
| 327 : | /************************************************************************** | ||
| 328 : | * Encore Part | ||
| 329 : | * | ||
| 330 : | * encore is the divx4 entry point used to compress a frame to a mpeg4 | ||
| 331 : | * bitstream. | ||
| 332 : | *************************************************************************/ | ||
| 333 : | |||
| 334 : | #define FRAMERATE_INCR 1001 | ||
| 335 : | |||
| 336 : | int | ||
| 337 : | encore(void * handle, int opt, void * param1, void * param2) | ||
| 338 : | { | ||
| 339 : | |||
| 340 : | int xerr; | ||
| 341 : | |||
| 342 : | switch(opt) { | ||
| 343 : | case ENC_OPT_INIT : | ||
| 344 : | { | ||
| 345 : | edgomez | 1.11 | EINST *ecur; |
| 346 : | edgomez | 1.9 | ENC_PARAM * eparam = (ENC_PARAM *)param1; |
| 347 : | XVID_INIT_PARAM xinit; | ||
| 348 : | XVID_ENC_PARAM xparam; | ||
| 349 : | |||
| 350 : | /* Init XviD which will detect host cpu features */ | ||
| 351 : | xinit.cpu_flags = 0; | ||
| 352 : | xvid_init(NULL, 0, &xinit, NULL); | ||
| 353 : | |||
| 354 : | /* Settings are copied to the XviD encoder structure */ | ||
| 355 : | xparam.width = eparam->x_dim; | ||
| 356 : | xparam.height = eparam->y_dim; | ||
| 357 : | if ((eparam->framerate - (int)eparam->framerate) == 0) | ||
| 358 : | { | ||
| 359 : | xparam.fincr = 1; | ||
| 360 : | xparam.fbase = (int)eparam->framerate; | ||
| 361 : | } | ||
| 362 : | else | ||
| 363 : | { | ||
| 364 : | xparam.fincr = FRAMERATE_INCR; | ||
| 365 : | xparam.fbase = (int)(FRAMERATE_INCR * eparam->framerate); | ||
| 366 : | } | ||
| 367 : | xparam.rc_bitrate = eparam->bitrate; | ||
| 368 : | xparam.rc_reaction_delay_factor = 16; | ||
| 369 : | xparam.rc_averaging_period = 100; | ||
| 370 : | xparam.rc_buffer = 100; | ||
| 371 : | xparam.min_quantizer = eparam->min_quantizer; | ||
| 372 : | xparam.max_quantizer = eparam->max_quantizer; | ||
| 373 : | xparam.max_key_interval = eparam->max_key_interval; | ||
| 374 : | |||
| 375 : | /* Create the encoder session */ | ||
| 376 : | xerr = encoder_create(&xparam); | ||
| 377 : | |||
| 378 : | eparam->handle = xparam.handle; | ||
| 379 : | |||
| 380 : | edgomez | 1.11 | /* Create an encoder instance in the chainlist */ |
| 381 : | if ((ecur = einst_find(xparam.handle)) == NULL) | ||
| 382 : | { | ||
| 383 : | ecur = einst_add(xparam.handle); | ||
| 384 : | |||
| 385 : | if(ecur == NULL) { | ||
| 386 : | encoder_destroy((Encoder*)xparam.handle); | ||
| 387 : | return ENC_MEMORY; | ||
| 388 : | } | ||
| 389 : | |||
| 390 : | } | ||
| 391 : | |||
| 392 : | ecur->quality = eparam->quality; | ||
| 393 : | if(ecur->quality < 0) ecur->quality = 0; | ||
| 394 : | if(ecur->quality > 6) ecur->quality = 6; | ||
| 395 : | |||
| 396 : | edgomez | 1.9 | break; |
| 397 : | } | ||
| 398 : | |||
| 399 : | case ENC_OPT_RELEASE : | ||
| 400 : | { | ||
| 401 : | edgomez | 1.11 | EINST *ecur; |
| 402 : | |||
| 403 : | if ((ecur = einst_find(handle)) == NULL) | ||
| 404 : | { | ||
| 405 : | return ENC_FAIL; | ||
| 406 : | } | ||
| 407 : | |||
| 408 : | edgomez | 1.9 | xerr = encoder_destroy((Encoder *) handle); |
| 409 : | break; | ||
| 410 : | } | ||
| 411 : | |||
| 412 : | case ENC_OPT_ENCODE : | ||
| 413 : | case ENC_OPT_ENCODE_VBR : | ||
| 414 : | { | ||
| 415 : | edgomez | 1.11 | EINST *ecur; |
| 416 : | |||
| 417 : | edgomez | 1.9 | ENC_FRAME * eframe = (ENC_FRAME *)param1; |
| 418 : | ENC_RESULT * eresult = (ENC_RESULT *)param2; | ||
| 419 : | XVID_ENC_FRAME xframe; | ||
| 420 : | XVID_ENC_STATS xstats; | ||
| 421 : | |||
| 422 : | edgomez | 1.11 | if ((ecur = einst_find(handle)) == NULL) |
| 423 : | { | ||
| 424 : | return ENC_FAIL; | ||
| 425 : | } | ||
| 426 : | |||
| 427 : | edgomez | 1.9 | /* Copy the divx4 info into the xvid structure */ |
| 428 : | xframe.bitstream = eframe->bitstream; | ||
| 429 : | xframe.length = eframe->length; | ||
| 430 : | edgomez | 1.11 | xframe.motion = divx4_motion_presets[ecur->quality]; |
| 431 : | xframe.general = divx4_general_presets[ecur->quality]; | ||
| 432 : | edgomez | 1.9 | |
| 433 : | xframe.image = eframe->image; | ||
| 434 : | xframe.colorspace = | ||
| 435 : | xvid_to_opendivx_enc_csp(eframe->colorspace); | ||
| 436 : | |||
| 437 : | if (opt == ENC_OPT_ENCODE_VBR) | ||
| 438 : | { | ||
| 439 : | xframe.intra = eframe->intra; | ||
| 440 : | xframe.quant = eframe->quant; | ||
| 441 : | } | ||
| 442 : | else | ||
| 443 : | { | ||
| 444 : | xframe.intra = -1; | ||
| 445 : | xframe.quant = 0; | ||
| 446 : | } | ||
| 447 : | |||
| 448 : | /* Encode the frame */ | ||
| 449 : | xerr = encoder_encode((Encoder *) handle, &xframe, (eresult ? &xstats : NULL) ); | ||
| 450 : | |||
| 451 : | /* Copy back the xvid structure to the divx4 one */ | ||
| 452 : | if (eresult) | ||
| 453 : | { | ||
| 454 : | eresult->is_key_frame = xframe.intra; | ||
| 455 : | eresult->quantizer = xstats.quant; | ||
| 456 : | eresult->total_bits = xframe.length * 8; | ||
| 457 : | eresult->motion_bits = xstats.hlength * 8; | ||
| 458 : | eresult->texture_bits = eresult->total_bits - eresult->motion_bits; | ||
| 459 : | } | ||
| 460 : | |||
| 461 : | eframe->length = xframe.length; | ||
| 462 : | |||
| 463 : | break; | ||
| 464 : | } | ||
| 465 : | |||
| 466 : | default: | ||
| 467 : | return ENC_FAIL; | ||
| 468 : | } | ||
| 469 : | |||
| 470 : | /* XviD Error code -> Divx4 error code */ | ||
| 471 : | switch(xerr) | ||
| 472 : | { | ||
| 473 : | case XVID_ERR_OK : | ||
| 474 : | return ENC_OK; | ||
| 475 : | case XVID_ERR_MEMORY : | ||
| 476 : | return ENC_MEMORY; | ||
| 477 : | case XVID_ERR_FORMAT : | ||
| 478 : | return ENC_BAD_FORMAT; | ||
| 479 : | default : | ||
| 480 : | return ENC_FAIL; | ||
| 481 : | } | ||
| 482 : | } | ||
| 483 : | |||
| 484 : | /************************************************************************** | ||
| 485 : | * Local Functions | ||
| 486 : | *************************************************************************/ | ||
| 487 : | Isibaar | 1.1 | |
| 488 : | edgomez | 1.9 | /*************************************** |
| 489 : | * DINST chainlist helper functions * | ||
| 490 : | ***************************************/ | ||
| 491 : | Isibaar | 1.1 | |
| 492 : | edgomez | 1.9 | /* Find an element in the chainlist according to its key value */ |
| 493 : | static DINST * dinst_find(unsigned long key) | ||
| 494 : | Isibaar | 1.1 | { |
| 495 : | DINST * dcur = dhead; | ||
| 496 : | |||
| 497 : | while (dcur) | ||
| 498 : | { | ||
| 499 : | if (dcur->key == key) | ||
| 500 : | { | ||
| 501 : | return dcur; | ||
| 502 : | } | ||
| 503 : | dcur = dcur->next; | ||
| 504 : | } | ||
| 505 : | |||
| 506 : | return NULL; | ||
| 507 : | } | ||
| 508 : | |||
| 509 : | |||
| 510 : | edgomez | 1.9 | /* Add an element to the chainlist */ |
| 511 : | static DINST * dinst_add(unsigned long key) | ||
| 512 : | Isibaar | 1.1 | { |
| 513 : | DINST * dnext = dhead; | ||
| 514 : | |||
| 515 : | dhead = malloc(sizeof(DINST)); | ||
| 516 : | if (dhead == NULL) | ||
| 517 : | { | ||
| 518 : | dhead = dnext; | ||
| 519 : | return NULL; | ||
| 520 : | } | ||
| 521 : | |||
| 522 : | dhead->key = key; | ||
| 523 : | dhead->next = dnext; | ||
| 524 : | |||
| 525 : | return dhead; | ||
| 526 : | } | ||
| 527 : | |||
| 528 : | |||
| 529 : | edgomez | 1.9 | /* Remove an elmement from the chainlist */ |
| 530 : | static void dinst_remove(unsigned long key) | ||
| 531 : | Isibaar | 1.1 | { |
| 532 : | DINST * dcur = dhead; | ||
| 533 : | |||
| 534 : | if (dhead == NULL) | ||
| 535 : | { | ||
| 536 : | return; | ||
| 537 : | } | ||
| 538 : | |||
| 539 : | if (dcur->key == key) | ||
| 540 : | { | ||
| 541 : | dhead = dcur->next; | ||
| 542 : | free(dcur); | ||
| 543 : | return; | ||
| 544 : | } | ||
| 545 : | |||
| 546 : | while (dcur->next) | ||
| 547 : | { | ||
| 548 : | if (dcur->next->key == key) | ||
| 549 : | { | ||
| 550 : | DINST * tmp = dcur->next; | ||
| 551 : | dcur->next = tmp->next; | ||
| 552 : | free(tmp); | ||
| 553 : | return; | ||
| 554 : | } | ||
| 555 : | dcur = dcur->next; | ||
| 556 : | } | ||
| 557 : | } | ||
| 558 : | |||
| 559 : | edgomez | 1.11 | |
| 560 : | /*************************************** | ||
| 561 : | * EINST chainlist helper functions * | ||
| 562 : | ***************************************/ | ||
| 563 : | |||
| 564 : | /* Find an element in the chainlist according to its handle */ | ||
| 565 : | static EINST * einst_find(void *handle) | ||
| 566 : | { | ||
| 567 : | EINST * ecur = ehead; | ||
| 568 : | |||
| 569 : | while (ecur) | ||
| 570 : | { | ||
| 571 : | if (ecur->handle == handle) | ||
| 572 : | { | ||
| 573 : | return ecur; | ||
| 574 : | } | ||
| 575 : | ecur = ecur->next; | ||
| 576 : | } | ||
| 577 : | |||
| 578 : | return NULL; | ||
| 579 : | } | ||
| 580 : | |||
| 581 : | |||
| 582 : | /* Add an element to the chainlist */ | ||
| 583 : | static EINST * einst_add(void *handle) | ||
| 584 : | { | ||
| 585 : | EINST * enext = ehead; | ||
| 586 : | |||
| 587 : | ehead = malloc(sizeof(EINST)); | ||
| 588 : | if (ehead == NULL) | ||
| 589 : | { | ||
| 590 : | ehead = enext; | ||
| 591 : | return NULL; | ||
| 592 : | } | ||
| 593 : | |||
| 594 : | ehead->handle = handle; | ||
| 595 : | ehead->next = enext; | ||
| 596 : | |||
| 597 : | return ehead; | ||
| 598 : | } | ||
| 599 : | |||
| 600 : | |||
| 601 : | /* Remove an elmement from the chainlist */ | ||
| 602 : | static void einst_remove(void *handle) | ||
| 603 : | { | ||
| 604 : | EINST * ecur = ehead; | ||
| 605 : | |||
| 606 : | if (ehead == NULL) | ||
| 607 : | { | ||
| 608 : | return; | ||
| 609 : | } | ||
| 610 : | |||
| 611 : | if (ecur->handle == handle) | ||
| 612 : | { | ||
| 613 : | ehead = ecur->next; | ||
| 614 : | free(ecur); | ||
| 615 : | return; | ||
| 616 : | } | ||
| 617 : | |||
| 618 : | while (ecur->next) | ||
| 619 : | { | ||
| 620 : | if (ecur->next->handle == handle) | ||
| 621 : | { | ||
| 622 : | EINST * tmp = ecur->next; | ||
| 623 : | ecur->next = tmp->next; | ||
| 624 : | free(tmp); | ||
| 625 : | return; | ||
| 626 : | } | ||
| 627 : | ecur = ecur->next; | ||
| 628 : | } | ||
| 629 : | } | ||
| 630 : | edgomez | 1.9 | /*************************************** |
| 631 : | * Colorspace code converter * | ||
| 632 : | ***************************************/ | ||
| 633 : | Isibaar | 1.1 | |
| 634 : | edgomez | 1.9 | static int xvid_to_opendivx_dec_csp(int csp) |
| 635 : | Isibaar | 1.1 | { |
| 636 : | edgomez | 1.9 | |
| 637 : | Isibaar | 1.1 | switch(csp) |
| 638 : | { | ||
| 639 : | case DEC_YV12 : | ||
| 640 : | return XVID_CSP_YV12; | ||
| 641 : | case DEC_420 : | ||
| 642 : | return XVID_CSP_I420; | ||
| 643 : | case DEC_YUY2 : | ||
| 644 : | return XVID_CSP_YUY2; | ||
| 645 : | case DEC_UYVY : | ||
| 646 : | return XVID_CSP_UYVY; | ||
| 647 : | case DEC_RGB32 : | ||
| 648 : | return XVID_CSP_VFLIP | XVID_CSP_RGB32; | ||
| 649 : | case DEC_RGB24 : | ||
| 650 : | return XVID_CSP_VFLIP | XVID_CSP_RGB24; | ||
| 651 : | case DEC_RGB565 : | ||
| 652 : | return XVID_CSP_VFLIP | XVID_CSP_RGB565; | ||
| 653 : | case DEC_RGB555 : | ||
| 654 : | return XVID_CSP_VFLIP | XVID_CSP_RGB555; | ||
| 655 : | case DEC_RGB32_INV : | ||
| 656 : | return XVID_CSP_RGB32; | ||
| 657 : | case DEC_RGB24_INV : | ||
| 658 : | return XVID_CSP_RGB24; | ||
| 659 : | case DEC_RGB565_INV : | ||
| 660 : | return XVID_CSP_RGB565; | ||
| 661 : | case DEC_RGB555_INV : | ||
| 662 : | return XVID_CSP_RGB555; | ||
| 663 : | case DEC_USER : | ||
| 664 : | return XVID_CSP_USER; | ||
| 665 : | default : | ||
| 666 : | return -1; | ||
| 667 : | } | ||
| 668 : | } | ||
| 669 : | |||
| 670 : | edgomez | 1.9 | static int xvid_to_opendivx_enc_csp(int csp) |
| 671 : | Isibaar | 1.1 | { |
| 672 : | |||
| 673 : | edgomez | 1.9 | switch (csp) |
| 674 : | Isibaar | 1.1 | { |
| 675 : | edgomez | 1.9 | case ENC_CSP_RGB24 : |
| 676 : | return XVID_CSP_VFLIP | XVID_CSP_RGB24; | ||
| 677 : | case ENC_CSP_YV12 : | ||
| 678 : | return XVID_CSP_YV12; | ||
| 679 : | case ENC_CSP_YUY2 : | ||
| 680 : | return XVID_CSP_YUY2; | ||
| 681 : | case ENC_CSP_UYVY : | ||
| 682 : | return XVID_CSP_UYVY; | ||
| 683 : | case ENC_CSP_I420 : | ||
| 684 : | return XVID_CSP_I420; | ||
| 685 : | Isibaar | 1.1 | default : |
| 686 : | edgomez | 1.9 | return -1; |
| 687 : | Isibaar | 1.1 | } |
| 688 : | } |
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