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Revision 918 - (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 | 851 | * Copyright(C) 2002-2003 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 | 918 | * $Id: xvid_decraw.c,v 1.7.2.1 2003-03-11 23:39:47 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 : | * -i string : input filename (default=stdin) | ||
| 45 : | * -t integer : input data type (raw=0, mp4u=1) | ||
| 46 : | edgomez | 918 | * -d : save decoder output (0 False*, !=0 True) |
| 47 : | * -m : save mpeg4 raw stream to single files (0 False*, !=0 True) | ||
| 48 : | edgomez | 547 | * -help : This help message |
| 49 : | * (* means default) | ||
| 50 : | chl | 376 | * |
| 51 : | edgomez | 547 | ****************************************************************************/ |
| 52 : | chl | 376 | |
| 53 : | #include <stdio.h> | ||
| 54 : | #include <stdlib.h> | ||
| 55 : | edgomez | 547 | #include <string.h> |
| 56 : | #include <math.h> | ||
| 57 : | edgomez | 824 | #ifndef WIN32 |
| 58 : | edgomez | 547 | #include <sys/time.h> |
| 59 : | #else | ||
| 60 : | #include <time.h> | ||
| 61 : | #endif | ||
| 62 : | chl | 376 | |
| 63 : | edgomez | 547 | #include "xvid.h" |
| 64 : | chl | 376 | |
| 65 : | edgomez | 547 | /***************************************************************************** |
| 66 : | * Global vars in module and constants | ||
| 67 : | ****************************************************************************/ | ||
| 68 : | chl | 376 | |
| 69 : | edgomez | 547 | /* max number of frames */ |
| 70 : | #define ABS_MAXFRAMENR 9999 | ||
| 71 : | chl | 376 | |
| 72 : | edgomez | 547 | static int XDIM = 0; |
| 73 : | static int YDIM = 0; | ||
| 74 : | static int ARG_SAVEDECOUTPUT = 0; | ||
| 75 : | static int ARG_SAVEMPEGSTREAM = 0; | ||
| 76 : | static char *ARG_INPUTFILE = NULL; | ||
| 77 : | chl | 376 | |
| 78 : | |||
| 79 : | edgomez | 547 | static char filepath[256] = "./"; |
| 80 : | static void *dec_handle = NULL; | ||
| 81 : | chl | 376 | |
| 82 : | edgomez | 918 | # define BUFFER_SIZE (2*1024*1024) |
| 83 : | chl | 376 | |
| 84 : | edgomez | 547 | /***************************************************************************** |
| 85 : | * Local prototypes | ||
| 86 : | ****************************************************************************/ | ||
| 87 : | chl | 376 | |
| 88 : | edgomez | 547 | static double msecond(); |
| 89 : | static int write_pgm(char *filename, | ||
| 90 : | edgomez | 918 | unsigned char *image); |
| 91 : | edgomez | 547 | static int dec_init(int use_assembler); |
| 92 : | static int dec_main(unsigned char *istream, | ||
| 93 : | edgomez | 851 | unsigned char *ostream, |
| 94 : | int istream_size, | ||
| 95 : | edgomez | 918 | xvid_dec_stats_t *xvid_dec_stats); |
| 96 : | edgomez | 547 | static int dec_stop(); |
| 97 : | static void usage(); | ||
| 98 : | |||
| 99 : | /***************************************************************************** | ||
| 100 : | * Main program | ||
| 101 : | ****************************************************************************/ | ||
| 102 : | |||
| 103 : | int main(int argc, char *argv[]) | ||
| 104 : | chl | 376 | { |
| 105 : | edgomez | 547 | unsigned char *mp4_buffer = NULL; |
| 106 : | unsigned char *mp4_ptr = NULL; | ||
| 107 : | unsigned char *out_buffer = NULL; | ||
| 108 : | edgomez | 918 | unsigned char *type = NULL; |
| 109 : | edgomez | 851 | int still_left_in_buffer; |
| 110 : | int delayed_frames; | ||
| 111 : | edgomez | 918 | xvid_dec_stats_t xvid_dec_stats; |
| 112 : | edgomez | 851 | |
| 113 : | edgomez | 547 | double totaldectime; |
| 114 : | |||
| 115 : | long totalsize; | ||
| 116 : | int status; | ||
| 117 : | |||
| 118 : | int use_assembler = 0; | ||
| 119 : | |||
| 120 : | char filename[256]; | ||
| 121 : | |||
| 122 : | FILE *in_file; | ||
| 123 : | int filenr; | ||
| 124 : | int i; | ||
| 125 : | |||
| 126 : | printf("xvid_decraw - raw mpeg4 bitstream decoder "); | ||
| 127 : | edgomez | 851 | printf("written by Christoph Lampert 2002-2003\n\n"); |
| 128 : | edgomez | 547 | |
| 129 : | /***************************************************************************** | ||
| 130 : | * Command line parsing | ||
| 131 : | ****************************************************************************/ | ||
| 132 : | |||
| 133 : | for (i=1; i< argc; i++) { | ||
| 134 : | |||
| 135 : | if (strcmp("-asm", argv[i]) == 0 ) { | ||
| 136 : | use_assembler = 1; | ||
| 137 : | } | ||
| 138 : | edgomez | 918 | else if (strcmp("-d", argv[i]) == 0) { |
| 139 : | ARG_SAVEDECOUTPUT = 1; | ||
| 140 : | edgomez | 547 | } |
| 141 : | else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { | ||
| 142 : | i++; | ||
| 143 : | ARG_INPUTFILE = argv[i]; | ||
| 144 : | } | ||
| 145 : | edgomez | 918 | else if (strcmp("-m", argv[i]) == 0) { |
| 146 : | ARG_SAVEMPEGSTREAM = 1; | ||
| 147 : | edgomez | 547 | } |
| 148 : | else if (strcmp("-help", argv[i])) { | ||
| 149 : | usage(); | ||
| 150 : | return(0); | ||
| 151 : | } | ||
| 152 : | else { | ||
| 153 : | usage(); | ||
| 154 : | exit(-1); | ||
| 155 : | } | ||
| 156 : | |||
| 157 : | chl | 376 | } |
| 158 : | edgomez | 547 | |
| 159 : | /***************************************************************************** | ||
| 160 : | * Values checking | ||
| 161 : | ****************************************************************************/ | ||
| 162 : | |||
| 163 : | if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { | ||
| 164 : | in_file = stdin; | ||
| 165 : | } | ||
| 166 : | else { | ||
| 167 : | |||
| 168 : | in_file = fopen(ARG_INPUTFILE, "rb"); | ||
| 169 : | if (in_file == NULL) { | ||
| 170 : | fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); | ||
| 171 : | edgomez | 918 | return(-1); |
| 172 : | edgomez | 547 | } |
| 173 : | } | ||
| 174 : | |||
| 175 : | /***************************************************************************** | ||
| 176 : | * Memory allocation | ||
| 177 : | ****************************************************************************/ | ||
| 178 : | |||
| 179 : | /* Memory for encoded mp4 stream */ | ||
| 180 : | mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); | ||
| 181 : | mp4_ptr = mp4_buffer; | ||
| 182 : | if (!mp4_buffer) | ||
| 183 : | goto free_all_memory; | ||
| 184 : | |||
| 185 : | /***************************************************************************** | ||
| 186 : | * XviD PART Start | ||
| 187 : | ****************************************************************************/ | ||
| 188 : | |||
| 189 : | status = dec_init(use_assembler); | ||
| 190 : | if (status) { | ||
| 191 : | fprintf(stderr, | ||
| 192 : | edgomez | 918 | "Decore INIT problem, return value %d\n", status); |
| 193 : | edgomez | 547 | goto release_all; |
| 194 : | } | ||
| 195 : | |||
| 196 : | |||
| 197 : | /***************************************************************************** | ||
| 198 : | * Main loop | ||
| 199 : | ****************************************************************************/ | ||
| 200 : | |||
| 201 : | edgomez | 851 | /* Fill the buffer */ |
| 202 : | still_left_in_buffer = fread(mp4_buffer, 1, BUFFER_SIZE, in_file); | ||
| 203 : | edgomez | 559 | |
| 204 : | edgomez | 547 | totaldectime = 0; |
| 205 : | totalsize = 0; | ||
| 206 : | filenr = 0; | ||
| 207 : | edgomez | 851 | delayed_frames = 0; |
| 208 : | edgomez | 547 | mp4_ptr = mp4_buffer; |
| 209 : | |||
| 210 : | do { | ||
| 211 : | |||
| 212 : | int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
| 213 : | int used_bytes = 0; | ||
| 214 : | double dectime; | ||
| 215 : | |||
| 216 : | edgomez | 851 | /* |
| 217 : | * If the buffer is half empty or there are no more bytes in it | ||
| 218 : | * then fill it. | ||
| 219 : | */ | ||
| 220 : | if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2 || | ||
| 221 : | still_left_in_buffer <= 0) { | ||
| 222 : | int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
| 223 : | edgomez | 547 | |
| 224 : | edgomez | 851 | /* Move data if needed */ |
| 225 : | if (rest) | ||
| 226 : | memcpy(mp4_buffer, mp4_ptr, rest); | ||
| 227 : | edgomez | 547 | |
| 228 : | edgomez | 851 | /* Update mp4_ptr */ |
| 229 : | mp4_ptr = mp4_buffer; | ||
| 230 : | edgomez | 547 | |
| 231 : | edgomez | 851 | /* read new data */ |
| 232 : | edgomez | 547 | if(feof(in_file)) |
| 233 : | break; | ||
| 234 : | |||
| 235 : | edgomez | 851 | still_left_in_buffer = fread(mp4_buffer + rest, |
| 236 : | 1, | ||
| 237 : | BUFFER_SIZE - rest, | ||
| 238 : | in_file); | ||
| 239 : | edgomez | 547 | |
| 240 : | } | ||
| 241 : | |||
| 242 : | |||
| 243 : | edgomez | 918 | /* This loop is needed to handle VOL/NVOP reading */ |
| 244 : | edgomez | 851 | do { |
| 245 : | edgomez | 547 | |
| 246 : | edgomez | 851 | /* Decode frame */ |
| 247 : | dectime = msecond(); | ||
| 248 : | edgomez | 918 | used_bytes = dec_main(mp4_ptr, out_buffer, mp4_size, &xvid_dec_stats); |
| 249 : | edgomez | 851 | dectime = msecond() - dectime; |
| 250 : | edgomez | 547 | |
| 251 : | edgomez | 918 | /* Resize image buffer if needed */ |
| 252 : | if(xvid_dec_stats.type == XVID_TYPE_VOL) { | ||
| 253 : | |||
| 254 : | /* Free old output buffer*/ | ||
| 255 : | if(out_buffer) free(out_buffer); | ||
| 256 : | |||
| 257 : | /* Copy witdh and height from the vol structure */ | ||
| 258 : | XDIM = xvid_dec_stats.data.vol.width; | ||
| 259 : | YDIM = xvid_dec_stats.data.vol.height; | ||
| 260 : | |||
| 261 : | /* Allocate the new buffer */ | ||
| 262 : | if((out_buffer = (unsigned char*)malloc(XDIM*YDIM*4)) == NULL) | ||
| 263 : | goto free_all_memory; | ||
| 264 : | edgomez | 851 | } |
| 265 : | edgomez | 547 | |
| 266 : | edgomez | 851 | /* Update buffer pointers */ |
| 267 : | edgomez | 918 | if(used_bytes > 0) { |
| 268 : | mp4_ptr += used_bytes; | ||
| 269 : | still_left_in_buffer -= used_bytes; | ||
| 270 : | edgomez | 559 | |
| 271 : | edgomez | 918 | /* Total size */ |
| 272 : | totalsize += used_bytes; | ||
| 273 : | } | ||
| 274 : | edgomez | 547 | |
| 275 : | edgomez | 918 | }while(xvid_dec_stats.type != XVID_TYPE_IVOP && |
| 276 : | xvid_dec_stats.type != XVID_TYPE_PVOP && | ||
| 277 : | xvid_dec_stats.type != XVID_TYPE_BVOP && | ||
| 278 : | xvid_dec_stats.type != XVID_TYPE_SVOP && | ||
| 279 : | still_left_in_buffer > 0); | ||
| 280 : | edgomez | 547 | |
| 281 : | edgomez | 851 | /* Negative buffer would mean we went too far */ |
| 282 : | if(still_left_in_buffer < 0) break; | ||
| 283 : | |||
| 284 : | edgomez | 918 | /* Skip when decoder is buffering images because of bframes */ |
| 285 : | if(xvid_dec_stats.type == XVID_TYPE_NOTHING) { | ||
| 286 : | delayed_frames++; | ||
| 287 : | edgomez | 851 | continue; |
| 288 : | edgomez | 547 | } |
| 289 : | |||
| 290 : | edgomez | 851 | /* Updated data - Count only usefull decode time */ |
| 291 : | totaldectime += dectime; | ||
| 292 : | edgomez | 547 | |
| 293 : | /* Prints some decoding stats */ | ||
| 294 : | edgomez | 918 | switch(xvid_dec_stats.type) { |
| 295 : | case XVID_TYPE_IVOP: | ||
| 296 : | type = "I"; | ||
| 297 : | break; | ||
| 298 : | case XVID_TYPE_PVOP: | ||
| 299 : | type = "P"; | ||
| 300 : | break; | ||
| 301 : | case XVID_TYPE_BVOP: | ||
| 302 : | type = "B"; | ||
| 303 : | break; | ||
| 304 : | case XVID_TYPE_SVOP: | ||
| 305 : | type = "S"; | ||
| 306 : | break; | ||
| 307 : | } | ||
| 308 : | |||
| 309 : | printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", | ||
| 310 : | filenr, type, dectime, used_bytes); | ||
| 311 : | edgomez | 851 | |
| 312 : | /* Save individual mpeg4 stream if required */ | ||
| 313 : | edgomez | 918 | if(ARG_SAVEMPEGSTREAM) { |
| 314 : | edgomez | 547 | FILE *filehandle = NULL; |
| 315 : | |||
| 316 : | sprintf(filename, "%sframe%05d.m4v", filepath, filenr); | ||
| 317 : | filehandle = fopen(filename, "wb"); | ||
| 318 : | if(!filehandle) { | ||
| 319 : | fprintf(stderr, | ||
| 320 : | edgomez | 851 | "Error writing single mpeg4 stream to file %s\n", |
| 321 : | filename); | ||
| 322 : | edgomez | 547 | } |
| 323 : | else { | ||
| 324 : | edgomez | 851 | fwrite(mp4_buffer, 1, used_bytes, filehandle); |
| 325 : | edgomez | 547 | fclose(filehandle); |
| 326 : | } | ||
| 327 : | } | ||
| 328 : | edgomez | 851 | |
| 329 : | edgomez | 547 | /* Save output frame if required */ |
| 330 : | if (ARG_SAVEDECOUTPUT) { | ||
| 331 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
| 332 : | if(write_pgm(filename,out_buffer)) { | ||
| 333 : | fprintf(stderr, | ||
| 334 : | edgomez | 851 | "Error writing decoded PGM frame %s\n", |
| 335 : | filename); | ||
| 336 : | edgomez | 547 | } |
| 337 : | } | ||
| 338 : | |||
| 339 : | filenr++; | ||
| 340 : | |||
| 341 : | edgomez | 851 | } while ( (status>=0) && (filenr<ABS_MAXFRAMENR)); |
| 342 : | edgomez | 547 | |
| 343 : | /***************************************************************************** | ||
| 344 : | edgomez | 851 | * Flush decoder buffers |
| 345 : | ****************************************************************************/ | ||
| 346 : | edgomez | 918 | |
| 347 : | edgomez | 851 | while(delayed_frames--) { |
| 348 : | |||
| 349 : | /* Fake vars */ | ||
| 350 : | edgomez | 918 | int used_bytes; |
| 351 : | edgomez | 851 | double dectime; |
| 352 : | |||
| 353 : | /* Decode frame */ | ||
| 354 : | dectime = msecond(); | ||
| 355 : | edgomez | 918 | used_bytes = dec_main(NULL, out_buffer, -1, &xvid_dec_stats); |
| 356 : | edgomez | 851 | dectime = msecond() - dectime; |
| 357 : | |||
| 358 : | /* Updated data - Count only usefull decode time */ | ||
| 359 : | totaldectime += dectime; | ||
| 360 : | |||
| 361 : | /* Prints some decoding stats */ | ||
| 362 : | printf("Frame %5d: dectime(ms) =%6.1f, length(bytes) =%7d\n", | ||
| 363 : | filenr, dectime, used_bytes); | ||
| 364 : | |||
| 365 : | /* Save output frame if required */ | ||
| 366 : | if (ARG_SAVEDECOUTPUT) { | ||
| 367 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
| 368 : | edgomez | 918 | if(write_pgm(filename, out_buffer)) { |
| 369 : | edgomez | 851 | fprintf(stderr, |
| 370 : | "Error writing decoded PGM frame %s\n", | ||
| 371 : | filename); | ||
| 372 : | } | ||
| 373 : | } | ||
| 374 : | |||
| 375 : | filenr++; | ||
| 376 : | |||
| 377 : | } | ||
| 378 : | |||
| 379 : | /***************************************************************************** | ||
| 380 : | edgomez | 547 | * Calculate totals and averages for output, print results |
| 381 : | ****************************************************************************/ | ||
| 382 : | |||
| 383 : | totalsize /= filenr; | ||
| 384 : | totaldectime /= filenr; | ||
| 385 : | |||
| 386 : | edgomez | 851 | printf("Avg: dectime(ms) =%7.2f, fps =%7.2f, length(bytes) =%7d\n", |
| 387 : | edgomez | 918 | totaldectime, 1000/totaldectime, (int)totalsize); |
| 388 : | edgomez | 547 | |
| 389 : | /***************************************************************************** | ||
| 390 : | * XviD PART Stop | ||
| 391 : | edgomez | 559 | ****************************************************************************/ |
| 392 : | edgomez | 547 | |
| 393 : | release_all: | ||
| 394 : | if (dec_handle) { | ||
| 395 : | status = dec_stop(); | ||
| 396 : | if (status) | ||
| 397 : | fprintf(stderr, "decore RELEASE problem return value %d\n", status); | ||
| 398 : | } | ||
| 399 : | |||
| 400 : | free_all_memory: | ||
| 401 : | free(out_buffer); | ||
| 402 : | free(mp4_buffer); | ||
| 403 : | |||
| 404 : | edgomez | 918 | return(0); |
| 405 : | chl | 376 | } |
| 406 : | |||
| 407 : | edgomez | 547 | /***************************************************************************** |
| 408 : | * Usage function | ||
| 409 : | ****************************************************************************/ | ||
| 410 : | chl | 376 | |
| 411 : | edgomez | 547 | static void usage() |
| 412 : | chl | 376 | { |
| 413 : | edgomez | 547 | |
| 414 : | fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); | ||
| 415 : | fprintf(stderr, "Options :\n"); | ||
| 416 : | fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\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 : | edgomez | 918 | fprintf(stderr, " -d : save decoder output\n"); |
| 420 : | fprintf(stderr, " -m : save mpeg4 raw stream to individual files\n"); | ||
| 421 : | edgomez | 547 | 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 | 918 | 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 : | edgomez | 918 | return(clk * 1000 / CLOCKS_PER_SEC); |
| 442 : | edgomez | 547 | #endif |
| 443 : | } | ||
| 444 : | |||
| 445 : | /***************************************************************************** | ||
| 446 : | * output functions | ||
| 447 : | ****************************************************************************/ | ||
| 448 : | |||
| 449 : | static int | ||
| 450 : | write_pgm(char *filename, | ||
| 451 : | edgomez | 918 | unsigned char *image) |
| 452 : | edgomez | 547 | { |
| 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 : | edgomez | 918 | return(0); |
| 487 : | chl | 376 | } |
| 488 : | else | ||
| 489 : | edgomez | 918 | return(1); |
| 490 : | chl | 376 | } |
| 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 : | edgomez | 918 | int ret; |
| 501 : | chl | 376 | |
| 502 : | edgomez | 918 | xvid_gbl_init_t xvid_gbl_init; |
| 503 : | xvid_dec_create_t xvid_dec_create; | ||
| 504 : | chl | 376 | |
| 505 : | edgomez | 918 | /*------------------------------------------------------------------------ |
| 506 : | * XviD core initialization | ||
| 507 : | *----------------------------------------------------------------------*/ | ||
| 508 : | |||
| 509 : | /* Version */ | ||
| 510 : | xvid_gbl_init.version = XVID_VERSION; | ||
| 511 : | |||
| 512 : | /* Assembly setting */ | ||
| 513 : | if(use_assembler) | ||
| 514 : | suxen_drol | 860 | #ifdef ARCH_IS_IA64 |
| 515 : | edgomez | 918 | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
| 516 : | chl | 376 | #else |
| 517 : | edgomez | 918 | xvid_gbl_init.cpu_flags = 0; |
| 518 : | chl | 376 | #endif |
| 519 : | edgomez | 918 | else |
| 520 : | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE; | ||
| 521 : | chl | 376 | |
| 522 : | edgomez | 918 | xvid_global(NULL, 0, &xvid_gbl_init, NULL); |
| 523 : | chl | 376 | |
| 524 : | edgomez | 918 | /*------------------------------------------------------------------------ |
| 525 : | * XviD encoder initialization | ||
| 526 : | *----------------------------------------------------------------------*/ | ||
| 527 : | edgomez | 851 | |
| 528 : | edgomez | 918 | /* Version */ |
| 529 : | xvid_dec_create.version = XVID_VERSION; | ||
| 530 : | chl | 376 | |
| 531 : | edgomez | 918 | /* |
| 532 : | * Image dimensions -- set to 0, xvidcore will resize when ever it is | ||
| 533 : | * needed | ||
| 534 : | */ | ||
| 535 : | xvid_dec_create.width = 0; | ||
| 536 : | xvid_dec_create.height = 0; | ||
| 537 : | |||
| 538 : | ret = xvid_decore(NULL, XVID_DEC_CREATE, &xvid_dec_create, NULL); | ||
| 539 : | |||
| 540 : | dec_handle = xvid_dec_create.handle; | ||
| 541 : | |||
| 542 : | return(ret); | ||
| 543 : | chl | 376 | } |
| 544 : | |||
| 545 : | edgomez | 547 | /* decode one frame */ |
| 546 : | static int | ||
| 547 : | dec_main(unsigned char *istream, | ||
| 548 : | edgomez | 851 | unsigned char *ostream, |
| 549 : | int istream_size, | ||
| 550 : | edgomez | 918 | xvid_dec_stats_t *xvid_dec_stats) |
| 551 : | edgomez | 547 | { |
| 552 : | chl | 376 | |
| 553 : | edgomez | 918 | int ret; |
| 554 : | chl | 376 | |
| 555 : | edgomez | 918 | xvid_dec_frame_t xvid_dec_frame; |
| 556 : | chl | 376 | |
| 557 : | edgomez | 918 | /* Set version */ |
| 558 : | xvid_dec_frame.version = XVID_VERSION; | ||
| 559 : | xvid_dec_stats->version = XVID_VERSION; | ||
| 560 : | chl | 376 | |
| 561 : | edgomez | 918 | /* No general flags to set */ |
| 562 : | xvid_dec_frame.general = 0; | ||
| 563 : | chl | 376 | |
| 564 : | edgomez | 918 | /* Input stream */ |
| 565 : | xvid_dec_frame.bitstream = istream; | ||
| 566 : | xvid_dec_frame.length = istream_size; | ||
| 567 : | edgomez | 851 | |
| 568 : | edgomez | 918 | /* Output frame structure */ |
| 569 : | xvid_dec_frame.output.plane[0] = ostream; | ||
| 570 : | xvid_dec_frame.output.stride[0] = XDIM; | ||
| 571 : | xvid_dec_frame.output.csp = XVID_CSP_I420; | ||
| 572 : | |||
| 573 : | ret = xvid_decore(dec_handle, XVID_DEC_DECODE, &xvid_dec_frame, xvid_dec_stats); | ||
| 574 : | |||
| 575 : | return(ret); | ||
| 576 : | chl | 376 | } |
| 577 : | |||
| 578 : | edgomez | 547 | /* close decoder to release resources */ |
| 579 : | static int | ||
| 580 : | dec_stop() | ||
| 581 : | chl | 376 | { |
| 582 : | edgomez | 918 | int ret; |
| 583 : | edgomez | 547 | |
| 584 : | edgomez | 918 | ret = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
| 585 : | chl | 376 | |
| 586 : | edgomez | 918 | return(ret); |
| 587 : | chl | 376 | } |
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