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Revision 824 - (view) (download)
| 1 : | edgomez | 547 | /***************************************************************************** |
| 2 : | chl | 376 | * |
| 3 : | edgomez | 547 | * XVID MPEG-4 VIDEO CODEC |
| 4 : | * - Console based decoding test application - | ||
| 5 : | chl | 376 | * |
| 6 : | edgomez | 547 | * Copyright(C) 2002 Christoph Lampert |
| 7 : | chl | 376 | * |
| 8 : | edgomez | 547 | * This program is free software; you can redistribute it and/or modify |
| 9 : | * it under the terms of the GNU General Public License as published by | ||
| 10 : | * the Free Software Foundation; either version 2 of the License, or | ||
| 11 : | * (at your option) any later version. | ||
| 12 : | chl | 376 | * |
| 13 : | edgomez | 547 | * This program is distributed in the hope that it will be useful, |
| 14 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | * GNU General Public License for more details. | ||
| 17 : | chl | 376 | * |
| 18 : | edgomez | 547 | * You should have received a copy of the GNU General Public License |
| 19 : | * along with this program; if not, write to the Free Software | ||
| 20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | * | ||
| 22 : | edgomez | 824 | * $Id: xvid_decraw.c,v 1.5 2003-02-09 19:32:52 edgomez Exp $ |
| 23 : | edgomez | 547 | * |
| 24 : | ****************************************************************************/ | ||
| 25 : | chl | 376 | |
| 26 : | edgomez | 547 | /***************************************************************************** |
| 27 : | chl | 376 | * |
| 28 : | edgomez | 547 | * Application notes : |
| 29 : | chl | 376 | * |
| 30 : | edgomez | 547 | * An MPEG-4 bitstream is read from an input file (or stdin) and decoded, |
| 31 : | * the speed for this is measured. | ||
| 32 : | chl | 376 | * |
| 33 : | * The program is plain C and needs no libraries except for libxvidcore, | ||
| 34 : | * and maths-lib, so with UN*X you simply compile by | ||
| 35 : | edgomez | 547 | * |
| 36 : | chl | 376 | * gcc xvid_decraw.c -lxvidcore -lm -o xvid_decraw |
| 37 : | * | ||
| 38 : | * You have to specify the image dimensions (until the add the feature | ||
| 39 : | * to read this from the bitstream) | ||
| 40 : | edgomez | 547 | * |
| 41 : | * Usage : xvid_decraw <-w width> <-h height> [OPTIONS] | ||
| 42 : | * Options : | ||
| 43 : | * -asm : use assembly optimizations (default=disabled) | ||
| 44 : | * -w integer : frame width ([1.2048]) | ||
| 45 : | * -h integer : frame height ([1.2048]) | ||
| 46 : | * -i string : input filename (default=stdin) | ||
| 47 : | * -t integer : input data type (raw=0, mp4u=1) | ||
| 48 : | * -d boolean : save decoder output (0 False*, !=0 True) | ||
| 49 : | * -m boolean : save mpeg4 raw stream to single files (0 False*, !=0 True) | ||
| 50 : | * -help : This help message | ||
| 51 : | * (* means default) | ||
| 52 : | chl | 376 | * |
| 53 : | edgomez | 547 | ****************************************************************************/ |
| 54 : | chl | 376 | |
| 55 : | #include <stdio.h> | ||
| 56 : | #include <stdlib.h> | ||
| 57 : | edgomez | 547 | #include <string.h> |
| 58 : | #include <math.h> | ||
| 59 : | edgomez | 824 | #ifndef WIN32 |
| 60 : | edgomez | 547 | #include <sys/time.h> |
| 61 : | #else | ||
| 62 : | #include <time.h> | ||
| 63 : | #endif | ||
| 64 : | chl | 376 | |
| 65 : | edgomez | 547 | #include "xvid.h" |
| 66 : | chl | 376 | |
| 67 : | edgomez | 547 | /***************************************************************************** |
| 68 : | * Global vars in module and constants | ||
| 69 : | ****************************************************************************/ | ||
| 70 : | chl | 376 | |
| 71 : | edgomez | 547 | /* max number of frames */ |
| 72 : | #define ABS_MAXFRAMENR 9999 | ||
| 73 : | chl | 376 | |
| 74 : | edgomez | 547 | static int XDIM = 0; |
| 75 : | static int YDIM = 0; | ||
| 76 : | static int ARG_SAVEDECOUTPUT = 0; | ||
| 77 : | static int ARG_SAVEMPEGSTREAM = 0; | ||
| 78 : | static int ARG_STREAMTYPE = 0; | ||
| 79 : | static char *ARG_INPUTFILE = NULL; | ||
| 80 : | chl | 376 | |
| 81 : | |||
| 82 : | edgomez | 547 | static char filepath[256] = "./"; |
| 83 : | static void *dec_handle = NULL; | ||
| 84 : | chl | 376 | |
| 85 : | edgomez | 547 | # define BUFFER_SIZE 10*XDIM*YDIM |
| 86 : | chl | 376 | |
| 87 : | edgomez | 547 | #define LONG_PACK(a,b,c,d) ((long) (((long)(a))<<24) | (((long)(b))<<16) | \ |
| 88 : | (((long)(c))<<8) |((long)(d))) | ||
| 89 : | chl | 376 | |
| 90 : | edgomez | 547 | #define SWAP(a) ( (((a)&0x000000ff)<<24) | (((a)&0x0000ff00)<<8) | \ |
| 91 : | (((a)&0x00ff0000)>>8) | (((a)&0xff000000)>>24) ) | ||
| 92 : | chl | 376 | |
| 93 : | edgomez | 547 | /***************************************************************************** |
| 94 : | * Local prototypes | ||
| 95 : | ****************************************************************************/ | ||
| 96 : | chl | 376 | |
| 97 : | edgomez | 547 | static double msecond(); |
| 98 : | static int write_pgm(char *filename, | ||
| 99 : | unsigned char *image); | ||
| 100 : | static int dec_init(int use_assembler); | ||
| 101 : | static int dec_main(unsigned char *istream, | ||
| 102 : | unsigned char *ostream, | ||
| 103 : | int istream_size, | ||
| 104 : | int *ostream_size); | ||
| 105 : | static int dec_stop(); | ||
| 106 : | static void usage(); | ||
| 107 : | |||
| 108 : | /***************************************************************************** | ||
| 109 : | * Main program | ||
| 110 : | ****************************************************************************/ | ||
| 111 : | |||
| 112 : | int main(int argc, char *argv[]) | ||
| 113 : | chl | 376 | { |
| 114 : | edgomez | 547 | unsigned char *mp4_buffer = NULL; |
| 115 : | unsigned char *mp4_ptr = NULL; | ||
| 116 : | unsigned char *out_buffer = NULL; | ||
| 117 : | int bigendian = 0; | ||
| 118 : | chl | 376 | |
| 119 : | edgomez | 547 | double totaldectime; |
| 120 : | |||
| 121 : | long totalsize; | ||
| 122 : | int status; | ||
| 123 : | |||
| 124 : | int use_assembler = 0; | ||
| 125 : | |||
| 126 : | char filename[256]; | ||
| 127 : | |||
| 128 : | FILE *in_file; | ||
| 129 : | int filenr; | ||
| 130 : | int i; | ||
| 131 : | |||
| 132 : | printf("xvid_decraw - raw mpeg4 bitstream decoder "); | ||
| 133 : | printf("written by Christoph Lampert 2002\n\n"); | ||
| 134 : | |||
| 135 : | /***************************************************************************** | ||
| 136 : | * Command line parsing | ||
| 137 : | ****************************************************************************/ | ||
| 138 : | |||
| 139 : | for (i=1; i< argc; i++) { | ||
| 140 : | |||
| 141 : | if (strcmp("-asm", argv[i]) == 0 ) { | ||
| 142 : | use_assembler = 1; | ||
| 143 : | } | ||
| 144 : | else if (strcmp("-w", argv[i]) == 0 && i < argc - 1 ) { | ||
| 145 : | i++; | ||
| 146 : | XDIM = atoi(argv[i]); | ||
| 147 : | } | ||
| 148 : | else if (strcmp("-h", argv[i]) == 0 && i < argc - 1 ) { | ||
| 149 : | i++; | ||
| 150 : | YDIM = atoi(argv[i]); | ||
| 151 : | } | ||
| 152 : | else if (strcmp("-d", argv[i]) == 0 && i < argc - 1 ) { | ||
| 153 : | i++; | ||
| 154 : | ARG_SAVEDECOUTPUT = atoi(argv[i]); | ||
| 155 : | } | ||
| 156 : | else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { | ||
| 157 : | i++; | ||
| 158 : | ARG_INPUTFILE = argv[i]; | ||
| 159 : | } | ||
| 160 : | else if (strcmp("-m", argv[i]) == 0 && i < argc - 1 ) { | ||
| 161 : | i++; | ||
| 162 : | ARG_SAVEMPEGSTREAM = atoi(argv[i]); | ||
| 163 : | } | ||
| 164 : | else if (strcmp("-t", argv[i]) == 0 && i < argc - 1 ) { | ||
| 165 : | i++; | ||
| 166 : | ARG_STREAMTYPE = atoi(argv[i]); | ||
| 167 : | } | ||
| 168 : | else if (strcmp("-help", argv[i])) { | ||
| 169 : | usage(); | ||
| 170 : | return(0); | ||
| 171 : | } | ||
| 172 : | else { | ||
| 173 : | usage(); | ||
| 174 : | exit(-1); | ||
| 175 : | } | ||
| 176 : | |||
| 177 : | chl | 376 | } |
| 178 : | edgomez | 547 | |
| 179 : | /***************************************************************************** | ||
| 180 : | * Values checking | ||
| 181 : | ****************************************************************************/ | ||
| 182 : | |||
| 183 : | if(XDIM <= 0 || XDIM > 2048 || YDIM <= 0 || YDIM > 2048) { | ||
| 184 : | usage(); | ||
| 185 : | return -1; | ||
| 186 : | } | ||
| 187 : | |||
| 188 : | if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { | ||
| 189 : | in_file = stdin; | ||
| 190 : | } | ||
| 191 : | else { | ||
| 192 : | |||
| 193 : | in_file = fopen(ARG_INPUTFILE, "rb"); | ||
| 194 : | if (in_file == NULL) { | ||
| 195 : | fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); | ||
| 196 : | return -1; | ||
| 197 : | } | ||
| 198 : | } | ||
| 199 : | |||
| 200 : | /***************************************************************************** | ||
| 201 : | * Memory allocation | ||
| 202 : | ****************************************************************************/ | ||
| 203 : | |||
| 204 : | /* Memory for encoded mp4 stream */ | ||
| 205 : | mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); | ||
| 206 : | mp4_ptr = mp4_buffer; | ||
| 207 : | if (!mp4_buffer) | ||
| 208 : | goto free_all_memory; | ||
| 209 : | |||
| 210 : | /* Memory for frame output */ | ||
| 211 : | out_buffer = (unsigned char *) malloc(XDIM*YDIM*4); | ||
| 212 : | if (!out_buffer) | ||
| 213 : | goto free_all_memory; | ||
| 214 : | |||
| 215 : | |||
| 216 : | /***************************************************************************** | ||
| 217 : | * XviD PART Start | ||
| 218 : | ****************************************************************************/ | ||
| 219 : | |||
| 220 : | status = dec_init(use_assembler); | ||
| 221 : | if (status) { | ||
| 222 : | fprintf(stderr, | ||
| 223 : | "Decore INIT problem, return value %d\n", status); | ||
| 224 : | goto release_all; | ||
| 225 : | } | ||
| 226 : | |||
| 227 : | |||
| 228 : | /***************************************************************************** | ||
| 229 : | * Main loop | ||
| 230 : | ****************************************************************************/ | ||
| 231 : | |||
| 232 : | edgomez | 559 | totalsize = LONG_PACK('M','P','4','U'); |
| 233 : | mp4_ptr = (unsigned char *)&totalsize; | ||
| 234 : | if(*mp4_ptr == 'M') | ||
| 235 : | bigendian = 1; | ||
| 236 : | else | ||
| 237 : | bigendian = 0; | ||
| 238 : | |||
| 239 : | edgomez | 547 | if(ARG_STREAMTYPE) { |
| 240 : | |||
| 241 : | unsigned char header[4]; | ||
| 242 : | |||
| 243 : | /* MP4U format : read header */ | ||
| 244 : | if(feof(in_file)) | ||
| 245 : | goto release_all; | ||
| 246 : | fread(header, 4, 1, in_file); | ||
| 247 : | |||
| 248 : | edgomez | 559 | if(header[0] != 'M' || header[1] != 'P' || |
| 249 : | header[2] != '4' || header[3] != 'U') { | ||
| 250 : | edgomez | 547 | fprintf(stderr, "Error, this not a mp4u container file\n"); |
| 251 : | goto release_all; | ||
| 252 : | } | ||
| 253 : | |||
| 254 : | } | ||
| 255 : | edgomez | 559 | else { |
| 256 : | fread(mp4_buffer, BUFFER_SIZE, 1, in_file); | ||
| 257 : | } | ||
| 258 : | edgomez | 547 | |
| 259 : | totaldectime = 0; | ||
| 260 : | totalsize = 0; | ||
| 261 : | filenr = 0; | ||
| 262 : | mp4_ptr = mp4_buffer; | ||
| 263 : | |||
| 264 : | do { | ||
| 265 : | |||
| 266 : | int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
| 267 : | int used_bytes = 0; | ||
| 268 : | double dectime; | ||
| 269 : | |||
| 270 : | /* Read data from input file */ | ||
| 271 : | if(ARG_STREAMTYPE) { | ||
| 272 : | |||
| 273 : | /* MP4U container */ | ||
| 274 : | |||
| 275 : | /* Read stream size first */ | ||
| 276 : | if(feof(in_file)) | ||
| 277 : | break; | ||
| 278 : | fread(&mp4_size, sizeof(long), 1, in_file); | ||
| 279 : | |||
| 280 : | edgomez | 559 | /* Mp4U container is big endian */ |
| 281 : | if(!bigendian) | ||
| 282 : | edgomez | 547 | mp4_size = SWAP(mp4_size); |
| 283 : | |||
| 284 : | /* Read mp4_size_bytes */ | ||
| 285 : | if(feof(in_file)) | ||
| 286 : | break; | ||
| 287 : | fread(mp4_buffer, mp4_size, 1, in_file); | ||
| 288 : | |||
| 289 : | /* | ||
| 290 : | * When reading mp4u, we don't have to care about buffer | ||
| 291 : | * filling as we know exactly how much bytes there are in | ||
| 292 : | * next frame | ||
| 293 : | */ | ||
| 294 : | mp4_ptr = mp4_buffer; | ||
| 295 : | |||
| 296 : | } | ||
| 297 : | else { | ||
| 298 : | |||
| 299 : | /* Real raw stream */ | ||
| 300 : | |||
| 301 : | /* buffer more than half empty -> Fill it */ | ||
| 302 : | if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2) { | ||
| 303 : | int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
| 304 : | |||
| 305 : | /* Move data if needed */ | ||
| 306 : | if (rest) | ||
| 307 : | memcpy(mp4_buffer, mp4_ptr, rest); | ||
| 308 : | |||
| 309 : | /* Update mp4_ptr */ | ||
| 310 : | mp4_ptr = mp4_buffer; | ||
| 311 : | |||
| 312 : | /* read new data */ | ||
| 313 : | if(feof(in_file)) | ||
| 314 : | break; | ||
| 315 : | fread(mp4_buffer + rest, BUFFER_SIZE - rest, 1, in_file); | ||
| 316 : | edgomez | 559 | |
| 317 : | edgomez | 547 | } |
| 318 : | |||
| 319 : | } | ||
| 320 : | |||
| 321 : | /* Decode frame */ | ||
| 322 : | dectime = msecond(); | ||
| 323 : | status = dec_main(mp4_ptr, out_buffer, mp4_size, &used_bytes); | ||
| 324 : | dectime = msecond() - dectime; | ||
| 325 : | |||
| 326 : | if (status) { | ||
| 327 : | break; | ||
| 328 : | } | ||
| 329 : | |||
| 330 : | /* | ||
| 331 : | * Only needed for real raw stream, mp4u uses | ||
| 332 : | * mp4_ptr = mp4_buffer for each frame | ||
| 333 : | */ | ||
| 334 : | mp4_ptr += used_bytes; | ||
| 335 : | |||
| 336 : | /* Updated data */ | ||
| 337 : | totalsize += used_bytes; | ||
| 338 : | totaldectime += dectime; | ||
| 339 : | |||
| 340 : | /* Prints some decoding stats */ | ||
| 341 : | printf("Frame %5d: dectime =%6.1f ms length=%7d bytes \n", | ||
| 342 : | filenr, dectime, used_bytes); | ||
| 343 : | |||
| 344 : | /* Save individual mpeg4 strean if required */ | ||
| 345 : | if (ARG_SAVEMPEGSTREAM) { | ||
| 346 : | FILE *filehandle = NULL; | ||
| 347 : | |||
| 348 : | sprintf(filename, "%sframe%05d.m4v", filepath, filenr); | ||
| 349 : | filehandle = fopen(filename, "wb"); | ||
| 350 : | if(!filehandle) { | ||
| 351 : | fprintf(stderr, | ||
| 352 : | "Error writing single mpeg4 stream to file %s\n", | ||
| 353 : | filename); | ||
| 354 : | } | ||
| 355 : | else { | ||
| 356 : | fwrite(mp4_buffer, used_bytes, 1, filehandle); | ||
| 357 : | fclose(filehandle); | ||
| 358 : | } | ||
| 359 : | } | ||
| 360 : | |||
| 361 : | |||
| 362 : | /* Save output frame if required */ | ||
| 363 : | if (ARG_SAVEDECOUTPUT) { | ||
| 364 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
| 365 : | if(write_pgm(filename,out_buffer)) { | ||
| 366 : | fprintf(stderr, | ||
| 367 : | "Error writing decoded PGM frame %s\n", | ||
| 368 : | filename); | ||
| 369 : | } | ||
| 370 : | } | ||
| 371 : | |||
| 372 : | filenr++; | ||
| 373 : | |||
| 374 : | } while ( (status>=0) && (filenr<ABS_MAXFRAMENR) ); | ||
| 375 : | |||
| 376 : | |||
| 377 : | /***************************************************************************** | ||
| 378 : | * Calculate totals and averages for output, print results | ||
| 379 : | ****************************************************************************/ | ||
| 380 : | |||
| 381 : | totalsize /= filenr; | ||
| 382 : | totaldectime /= filenr; | ||
| 383 : | |||
| 384 : | printf("Avg: dectime %5.2f ms, %5.2f fps, mp4 stream size =%d\n", | ||
| 385 : | edgomez | 559 | totaldectime, 1000/totaldectime, (int)totalsize); |
| 386 : | edgomez | 547 | |
| 387 : | /***************************************************************************** | ||
| 388 : | * XviD PART Stop | ||
| 389 : | edgomez | 559 | ****************************************************************************/ |
| 390 : | edgomez | 547 | |
| 391 : | release_all: | ||
| 392 : | if (dec_handle) { | ||
| 393 : | status = dec_stop(); | ||
| 394 : | if (status) | ||
| 395 : | fprintf(stderr, "decore RELEASE problem return value %d\n", status); | ||
| 396 : | } | ||
| 397 : | |||
| 398 : | free_all_memory: | ||
| 399 : | free(out_buffer); | ||
| 400 : | free(mp4_buffer); | ||
| 401 : | |||
| 402 : | return 0; | ||
| 403 : | chl | 376 | } |
| 404 : | |||
| 405 : | edgomez | 547 | /***************************************************************************** |
| 406 : | * Usage function | ||
| 407 : | ****************************************************************************/ | ||
| 408 : | chl | 376 | |
| 409 : | edgomez | 547 | static void usage() |
| 410 : | chl | 376 | { |
| 411 : | edgomez | 547 | |
| 412 : | fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); | ||
| 413 : | fprintf(stderr, "Options :\n"); | ||
| 414 : | fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); | ||
| 415 : | fprintf(stderr, " -w integer : frame width ([1.2048])\n"); | ||
| 416 : | fprintf(stderr, " -h integer : frame height ([1.2048])\n"); | ||
| 417 : | fprintf(stderr, " -i string : input filename (default=stdin)\n"); | ||
| 418 : | fprintf(stderr, " -t integer : input data type (raw=0, mp4u=1)\n"); | ||
| 419 : | fprintf(stderr, " -d boolean : save decoder output (0 False*, !=0 True)\n"); | ||
| 420 : | fprintf(stderr, " -m boolean : save mpeg4 raw stream to individual files (0 False*, !=0 True)\n"); | ||
| 421 : | fprintf(stderr, " -help : This help message\n"); | ||
| 422 : | fprintf(stderr, " (* means default)\n"); | ||
| 423 : | |||
| 424 : | } | ||
| 425 : | |||
| 426 : | /***************************************************************************** | ||
| 427 : | * "helper" functions | ||
| 428 : | ****************************************************************************/ | ||
| 429 : | |||
| 430 : | /* return the current time in milli seconds */ | ||
| 431 : | static double | ||
| 432 : | msecond() | ||
| 433 : | { | ||
| 434 : | edgomez | 824 | #ifndef WIN32 |
| 435 : | edgomez | 547 | struct timeval tv; |
| 436 : | gettimeofday(&tv, 0); | ||
| 437 : | edgomez | 551 | return (double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3; |
| 438 : | edgomez | 547 | #else |
| 439 : | clock_t clk; | ||
| 440 : | clk = clock(); | ||
| 441 : | return clk * 1000 / CLOCKS_PER_SEC; | ||
| 442 : | #endif | ||
| 443 : | } | ||
| 444 : | |||
| 445 : | /***************************************************************************** | ||
| 446 : | * output functions | ||
| 447 : | ****************************************************************************/ | ||
| 448 : | |||
| 449 : | static int | ||
| 450 : | write_pgm(char *filename, | ||
| 451 : | unsigned char *image) | ||
| 452 : | { | ||
| 453 : | int loop; | ||
| 454 : | |||
| 455 : | unsigned char *y = image; | ||
| 456 : | unsigned char *u = image + XDIM*YDIM; | ||
| 457 : | unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; | ||
| 458 : | |||
| 459 : | chl | 376 | FILE *filehandle; |
| 460 : | edgomez | 547 | filehandle=fopen(filename,"w+b"); |
| 461 : | if (filehandle) { | ||
| 462 : | chl | 376 | |
| 463 : | edgomez | 547 | /* Write header */ |
| 464 : | fprintf(filehandle,"P5\n\n%d %d 255\n", XDIM,YDIM*3/2); | ||
| 465 : | |||
| 466 : | /* Write Y data */ | ||
| 467 : | fwrite(y, 1, XDIM*YDIM, filehandle); | ||
| 468 : | |||
| 469 : | for(loop=0; loop<YDIM/2; loop++) | ||
| 470 : | { | ||
| 471 : | /* Write U scanline */ | ||
| 472 : | fwrite(u, 1, XDIM/2, filehandle); | ||
| 473 : | |||
| 474 : | /* Write V scanline */ | ||
| 475 : | fwrite(v, 1, XDIM/2, filehandle); | ||
| 476 : | |||
| 477 : | /* Update pointers */ | ||
| 478 : | u += XDIM/2; | ||
| 479 : | v += XDIM/2; | ||
| 480 : | |||
| 481 : | } | ||
| 482 : | |||
| 483 : | /* Close file */ | ||
| 484 : | chl | 376 | fclose(filehandle); |
| 485 : | edgomez | 547 | |
| 486 : | chl | 376 | return 0; |
| 487 : | } | ||
| 488 : | else | ||
| 489 : | return 1; | ||
| 490 : | } | ||
| 491 : | |||
| 492 : | edgomez | 547 | /***************************************************************************** |
| 493 : | * Routines for decoding: init decoder, use, and stop decoder | ||
| 494 : | ****************************************************************************/ | ||
| 495 : | chl | 376 | |
| 496 : | edgomez | 547 | /* init decoder before first run */ |
| 497 : | static int | ||
| 498 : | dec_init(int use_assembler) | ||
| 499 : | chl | 376 | { |
| 500 : | int xerr; | ||
| 501 : | |||
| 502 : | XVID_INIT_PARAM xinit; | ||
| 503 : | XVID_DEC_PARAM xparam; | ||
| 504 : | |||
| 505 : | if(use_assembler) | ||
| 506 : | #ifdef ARCH_IA64 | ||
| 507 : | xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; | ||
| 508 : | #else | ||
| 509 : | xinit.cpu_flags = 0; | ||
| 510 : | #endif | ||
| 511 : | else | ||
| 512 : | xinit.cpu_flags = XVID_CPU_FORCE; | ||
| 513 : | |||
| 514 : | xvid_init(NULL, 0, &xinit, NULL); | ||
| 515 : | xparam.width = XDIM; | ||
| 516 : | xparam.height = YDIM; | ||
| 517 : | |||
| 518 : | xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); | ||
| 519 : | dec_handle = xparam.handle; | ||
| 520 : | |||
| 521 : | return xerr; | ||
| 522 : | } | ||
| 523 : | |||
| 524 : | edgomez | 547 | /* decode one frame */ |
| 525 : | static int | ||
| 526 : | dec_main(unsigned char *istream, | ||
| 527 : | unsigned char *ostream, | ||
| 528 : | int istream_size, | ||
| 529 : | int *ostream_size) | ||
| 530 : | { | ||
| 531 : | chl | 376 | |
| 532 : | int xerr; | ||
| 533 : | XVID_DEC_FRAME xframe; | ||
| 534 : | |||
| 535 : | edgomez | 547 | xframe.bitstream = istream; |
| 536 : | xframe.length = istream_size; | ||
| 537 : | xframe.image = ostream; | ||
| 538 : | chl | 376 | xframe.stride = XDIM; |
| 539 : | edgomez | 547 | xframe.colorspace = XVID_CSP_YV12; |
| 540 : | chl | 376 | |
| 541 : | edgomez | 547 | xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, NULL); |
| 542 : | chl | 376 | |
| 543 : | edgomez | 547 | *ostream_size = xframe.length; |
| 544 : | chl | 376 | |
| 545 : | return xerr; | ||
| 546 : | } | ||
| 547 : | |||
| 548 : | edgomez | 547 | /* close decoder to release resources */ |
| 549 : | static int | ||
| 550 : | dec_stop() | ||
| 551 : | chl | 376 | { |
| 552 : | int xerr; | ||
| 553 : | edgomez | 547 | |
| 554 : | chl | 376 | xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
| 555 : | |||
| 556 : | return xerr; | ||
| 557 : | } |
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