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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 : | suxen_drol | 860 | * $Id: xvid_decraw.c,v 1.7 2003-02-16 05:11:39 suxen_drol 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 char *ARG_INPUTFILE = NULL; | ||
79 : | chl | 376 | |
80 : | |||
81 : | edgomez | 547 | static char filepath[256] = "./"; |
82 : | static void *dec_handle = NULL; | ||
83 : | chl | 376 | |
84 : | edgomez | 547 | # define BUFFER_SIZE 10*XDIM*YDIM |
85 : | chl | 376 | |
86 : | edgomez | 547 | /***************************************************************************** |
87 : | * Local prototypes | ||
88 : | ****************************************************************************/ | ||
89 : | chl | 376 | |
90 : | edgomez | 547 | static double msecond(); |
91 : | static int write_pgm(char *filename, | ||
92 : | unsigned char *image); | ||
93 : | static int dec_init(int use_assembler); | ||
94 : | static int dec_main(unsigned char *istream, | ||
95 : | edgomez | 851 | unsigned char *ostream, |
96 : | int istream_size, | ||
97 : | int *ostream_size, | ||
98 : | int *isframe); | ||
99 : | edgomez | 547 | static int dec_stop(); |
100 : | static void usage(); | ||
101 : | |||
102 : | /***************************************************************************** | ||
103 : | * Main program | ||
104 : | ****************************************************************************/ | ||
105 : | |||
106 : | int main(int argc, char *argv[]) | ||
107 : | chl | 376 | { |
108 : | edgomez | 547 | unsigned char *mp4_buffer = NULL; |
109 : | unsigned char *mp4_ptr = NULL; | ||
110 : | unsigned char *out_buffer = NULL; | ||
111 : | int bigendian = 0; | ||
112 : | edgomez | 851 | int still_left_in_buffer; |
113 : | int delayed_frames; | ||
114 : | |||
115 : | edgomez | 547 | double totaldectime; |
116 : | |||
117 : | long totalsize; | ||
118 : | int status; | ||
119 : | |||
120 : | int use_assembler = 0; | ||
121 : | |||
122 : | char filename[256]; | ||
123 : | |||
124 : | FILE *in_file; | ||
125 : | int filenr; | ||
126 : | int i; | ||
127 : | |||
128 : | printf("xvid_decraw - raw mpeg4 bitstream decoder "); | ||
129 : | edgomez | 851 | printf("written by Christoph Lampert 2002-2003\n\n"); |
130 : | edgomez | 547 | |
131 : | /***************************************************************************** | ||
132 : | * Command line parsing | ||
133 : | ****************************************************************************/ | ||
134 : | |||
135 : | for (i=1; i< argc; i++) { | ||
136 : | |||
137 : | if (strcmp("-asm", argv[i]) == 0 ) { | ||
138 : | use_assembler = 1; | ||
139 : | } | ||
140 : | else if (strcmp("-w", argv[i]) == 0 && i < argc - 1 ) { | ||
141 : | i++; | ||
142 : | XDIM = atoi(argv[i]); | ||
143 : | } | ||
144 : | else if (strcmp("-h", argv[i]) == 0 && i < argc - 1 ) { | ||
145 : | i++; | ||
146 : | YDIM = atoi(argv[i]); | ||
147 : | } | ||
148 : | else if (strcmp("-d", argv[i]) == 0 && i < argc - 1 ) { | ||
149 : | i++; | ||
150 : | ARG_SAVEDECOUTPUT = atoi(argv[i]); | ||
151 : | } | ||
152 : | else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { | ||
153 : | i++; | ||
154 : | ARG_INPUTFILE = argv[i]; | ||
155 : | } | ||
156 : | else if (strcmp("-m", argv[i]) == 0 && i < argc - 1 ) { | ||
157 : | i++; | ||
158 : | ARG_SAVEMPEGSTREAM = atoi(argv[i]); | ||
159 : | } | ||
160 : | else if (strcmp("-help", argv[i])) { | ||
161 : | usage(); | ||
162 : | return(0); | ||
163 : | } | ||
164 : | else { | ||
165 : | usage(); | ||
166 : | exit(-1); | ||
167 : | } | ||
168 : | |||
169 : | chl | 376 | } |
170 : | edgomez | 547 | |
171 : | /***************************************************************************** | ||
172 : | * Values checking | ||
173 : | ****************************************************************************/ | ||
174 : | |||
175 : | if(XDIM <= 0 || XDIM > 2048 || YDIM <= 0 || YDIM > 2048) { | ||
176 : | usage(); | ||
177 : | return -1; | ||
178 : | } | ||
179 : | |||
180 : | if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { | ||
181 : | in_file = stdin; | ||
182 : | } | ||
183 : | else { | ||
184 : | |||
185 : | in_file = fopen(ARG_INPUTFILE, "rb"); | ||
186 : | if (in_file == NULL) { | ||
187 : | fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); | ||
188 : | return -1; | ||
189 : | } | ||
190 : | } | ||
191 : | |||
192 : | /***************************************************************************** | ||
193 : | * Memory allocation | ||
194 : | ****************************************************************************/ | ||
195 : | |||
196 : | /* Memory for encoded mp4 stream */ | ||
197 : | mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); | ||
198 : | mp4_ptr = mp4_buffer; | ||
199 : | if (!mp4_buffer) | ||
200 : | goto free_all_memory; | ||
201 : | |||
202 : | /* Memory for frame output */ | ||
203 : | out_buffer = (unsigned char *) malloc(XDIM*YDIM*4); | ||
204 : | if (!out_buffer) | ||
205 : | goto free_all_memory; | ||
206 : | |||
207 : | |||
208 : | /***************************************************************************** | ||
209 : | * XviD PART Start | ||
210 : | ****************************************************************************/ | ||
211 : | |||
212 : | status = dec_init(use_assembler); | ||
213 : | if (status) { | ||
214 : | fprintf(stderr, | ||
215 : | "Decore INIT problem, return value %d\n", status); | ||
216 : | goto release_all; | ||
217 : | } | ||
218 : | |||
219 : | |||
220 : | /***************************************************************************** | ||
221 : | * Main loop | ||
222 : | ****************************************************************************/ | ||
223 : | |||
224 : | edgomez | 851 | /* Fill the buffer */ |
225 : | still_left_in_buffer = fread(mp4_buffer, 1, BUFFER_SIZE, in_file); | ||
226 : | edgomez | 559 | |
227 : | edgomez | 547 | totaldectime = 0; |
228 : | totalsize = 0; | ||
229 : | filenr = 0; | ||
230 : | edgomez | 851 | delayed_frames = 0; |
231 : | edgomez | 547 | mp4_ptr = mp4_buffer; |
232 : | |||
233 : | do { | ||
234 : | |||
235 : | int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
236 : | int used_bytes = 0; | ||
237 : | double dectime; | ||
238 : | edgomez | 851 | int notification; |
239 : | edgomez | 547 | |
240 : | edgomez | 851 | /* |
241 : | * If the buffer is half empty or there are no more bytes in it | ||
242 : | * then fill it. | ||
243 : | */ | ||
244 : | if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2 || | ||
245 : | still_left_in_buffer <= 0) { | ||
246 : | int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
247 : | edgomez | 547 | |
248 : | edgomez | 851 | /* Move data if needed */ |
249 : | if (rest) | ||
250 : | memcpy(mp4_buffer, mp4_ptr, rest); | ||
251 : | edgomez | 547 | |
252 : | edgomez | 851 | /* Update mp4_ptr */ |
253 : | mp4_ptr = mp4_buffer; | ||
254 : | edgomez | 547 | |
255 : | edgomez | 851 | /* read new data */ |
256 : | edgomez | 547 | if(feof(in_file)) |
257 : | break; | ||
258 : | |||
259 : | edgomez | 851 | still_left_in_buffer = fread(mp4_buffer + rest, |
260 : | 1, | ||
261 : | BUFFER_SIZE - rest, | ||
262 : | in_file); | ||
263 : | edgomez | 547 | |
264 : | } | ||
265 : | |||
266 : | |||
267 : | edgomez | 851 | /* This loop flushes N_VOPS (with vop_coded bit set to 0) */ |
268 : | do { | ||
269 : | edgomez | 547 | |
270 : | edgomez | 851 | /* Decode frame */ |
271 : | dectime = msecond(); | ||
272 : | status = dec_main(mp4_ptr, out_buffer, mp4_size, &used_bytes, ¬ification); | ||
273 : | dectime = msecond() - dectime; | ||
274 : | edgomez | 547 | |
275 : | edgomez | 851 | if (status) { |
276 : | break; | ||
277 : | } | ||
278 : | edgomez | 547 | |
279 : | edgomez | 851 | /* Update buffer pointers */ |
280 : | mp4_ptr += used_bytes; | ||
281 : | still_left_in_buffer -= used_bytes; | ||
282 : | edgomez | 559 | |
283 : | edgomez | 851 | /* Total size */ |
284 : | totalsize += used_bytes; | ||
285 : | edgomez | 547 | |
286 : | edgomez | 851 | }while(used_bytes <= 7 && still_left_in_buffer > 0); /* <= 7 bytes is a NVOPS */ |
287 : | edgomez | 547 | |
288 : | edgomez | 851 | /* Negative buffer would mean we went too far */ |
289 : | if(still_left_in_buffer < 0) break; | ||
290 : | |||
291 : | /* Skip when decoder is buffering images or decoding VOL information */ | ||
292 : | if(notification != XVID_DEC_VOP) { | ||
293 : | /* It's a delay only if it notifies NOTHING */ | ||
294 : | if(notification == XVID_DEC_NOTHING) | ||
295 : | delayed_frames++; | ||
296 : | continue; | ||
297 : | edgomez | 547 | } |
298 : | |||
299 : | edgomez | 851 | /* Updated data - Count only usefull decode time */ |
300 : | totaldectime += dectime; | ||
301 : | edgomez | 547 | |
302 : | /* Prints some decoding stats */ | ||
303 : | edgomez | 851 | printf("Frame %5d: dectime(ms) =%6.1f, length(bytes) =%7d\n", |
304 : | filenr, dectime, used_bytes); | ||
305 : | |||
306 : | /* Save individual mpeg4 stream if required */ | ||
307 : | edgomez | 547 | if (ARG_SAVEMPEGSTREAM) { |
308 : | FILE *filehandle = NULL; | ||
309 : | |||
310 : | sprintf(filename, "%sframe%05d.m4v", filepath, filenr); | ||
311 : | filehandle = fopen(filename, "wb"); | ||
312 : | if(!filehandle) { | ||
313 : | fprintf(stderr, | ||
314 : | edgomez | 851 | "Error writing single mpeg4 stream to file %s\n", |
315 : | filename); | ||
316 : | edgomez | 547 | } |
317 : | else { | ||
318 : | edgomez | 851 | fwrite(mp4_buffer, 1, used_bytes, filehandle); |
319 : | edgomez | 547 | fclose(filehandle); |
320 : | } | ||
321 : | } | ||
322 : | edgomez | 851 | |
323 : | edgomez | 547 | /* Save output frame if required */ |
324 : | if (ARG_SAVEDECOUTPUT) { | ||
325 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
326 : | if(write_pgm(filename,out_buffer)) { | ||
327 : | fprintf(stderr, | ||
328 : | edgomez | 851 | "Error writing decoded PGM frame %s\n", |
329 : | filename); | ||
330 : | edgomez | 547 | } |
331 : | } | ||
332 : | |||
333 : | filenr++; | ||
334 : | |||
335 : | edgomez | 851 | } while ( (status>=0) && (filenr<ABS_MAXFRAMENR)); |
336 : | edgomez | 547 | |
337 : | /***************************************************************************** | ||
338 : | edgomez | 851 | * Flush decoder buffers |
339 : | ****************************************************************************/ | ||
340 : | while(delayed_frames--) { | ||
341 : | |||
342 : | /* Fake vars */ | ||
343 : | int used_bytes, isframe; | ||
344 : | double dectime; | ||
345 : | |||
346 : | /* Decode frame */ | ||
347 : | dectime = msecond(); | ||
348 : | status = dec_main(NULL, out_buffer, -1, &used_bytes, &isframe); | ||
349 : | dectime = msecond() - dectime; | ||
350 : | |||
351 : | if (status) { | ||
352 : | break; | ||
353 : | } | ||
354 : | |||
355 : | /* Updated data - Count only usefull decode time */ | ||
356 : | totaldectime += dectime; | ||
357 : | |||
358 : | /* Prints some decoding stats */ | ||
359 : | printf("Frame %5d: dectime(ms) =%6.1f, length(bytes) =%7d\n", | ||
360 : | filenr, dectime, used_bytes); | ||
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 : | } | ||
375 : | |||
376 : | /***************************************************************************** | ||
377 : | edgomez | 547 | * Calculate totals and averages for output, print results |
378 : | ****************************************************************************/ | ||
379 : | |||
380 : | totalsize /= filenr; | ||
381 : | totaldectime /= filenr; | ||
382 : | |||
383 : | edgomez | 851 | printf("Avg: dectime(ms) =%7.2f, fps =%7.2f, length(bytes) =%7d\n", |
384 : | edgomez | 559 | totaldectime, 1000/totaldectime, (int)totalsize); |
385 : | edgomez | 547 | |
386 : | /***************************************************************************** | ||
387 : | * XviD PART Stop | ||
388 : | edgomez | 559 | ****************************************************************************/ |
389 : | edgomez | 547 | |
390 : | release_all: | ||
391 : | if (dec_handle) { | ||
392 : | status = dec_stop(); | ||
393 : | if (status) | ||
394 : | fprintf(stderr, "decore RELEASE problem return value %d\n", status); | ||
395 : | } | ||
396 : | |||
397 : | free_all_memory: | ||
398 : | free(out_buffer); | ||
399 : | free(mp4_buffer); | ||
400 : | |||
401 : | return 0; | ||
402 : | chl | 376 | } |
403 : | |||
404 : | edgomez | 547 | /***************************************************************************** |
405 : | * Usage function | ||
406 : | ****************************************************************************/ | ||
407 : | chl | 376 | |
408 : | edgomez | 547 | static void usage() |
409 : | chl | 376 | { |
410 : | edgomez | 547 | |
411 : | fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); | ||
412 : | fprintf(stderr, "Options :\n"); | ||
413 : | fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); | ||
414 : | fprintf(stderr, " -w integer : frame width ([1.2048])\n"); | ||
415 : | fprintf(stderr, " -h integer : frame height ([1.2048])\n"); | ||
416 : | fprintf(stderr, " -i string : input filename (default=stdin)\n"); | ||
417 : | fprintf(stderr, " -t integer : input data type (raw=0, mp4u=1)\n"); | ||
418 : | fprintf(stderr, " -d boolean : save decoder output (0 False*, !=0 True)\n"); | ||
419 : | fprintf(stderr, " -m boolean : save mpeg4 raw stream to individual files (0 False*, !=0 True)\n"); | ||
420 : | fprintf(stderr, " -help : This help message\n"); | ||
421 : | fprintf(stderr, " (* means default)\n"); | ||
422 : | |||
423 : | } | ||
424 : | |||
425 : | /***************************************************************************** | ||
426 : | * "helper" functions | ||
427 : | ****************************************************************************/ | ||
428 : | |||
429 : | /* return the current time in milli seconds */ | ||
430 : | static double | ||
431 : | msecond() | ||
432 : | { | ||
433 : | edgomez | 824 | #ifndef WIN32 |
434 : | edgomez | 547 | struct timeval tv; |
435 : | gettimeofday(&tv, 0); | ||
436 : | edgomez | 551 | return (double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3; |
437 : | edgomez | 547 | #else |
438 : | clock_t clk; | ||
439 : | clk = clock(); | ||
440 : | return clk * 1000 / CLOCKS_PER_SEC; | ||
441 : | #endif | ||
442 : | } | ||
443 : | |||
444 : | /***************************************************************************** | ||
445 : | * output functions | ||
446 : | ****************************************************************************/ | ||
447 : | |||
448 : | static int | ||
449 : | write_pgm(char *filename, | ||
450 : | unsigned char *image) | ||
451 : | { | ||
452 : | int loop; | ||
453 : | |||
454 : | unsigned char *y = image; | ||
455 : | unsigned char *u = image + XDIM*YDIM; | ||
456 : | unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; | ||
457 : | |||
458 : | chl | 376 | FILE *filehandle; |
459 : | edgomez | 547 | filehandle=fopen(filename,"w+b"); |
460 : | if (filehandle) { | ||
461 : | chl | 376 | |
462 : | edgomez | 547 | /* Write header */ |
463 : | fprintf(filehandle,"P5\n\n%d %d 255\n", XDIM,YDIM*3/2); | ||
464 : | |||
465 : | /* Write Y data */ | ||
466 : | fwrite(y, 1, XDIM*YDIM, filehandle); | ||
467 : | |||
468 : | for(loop=0; loop<YDIM/2; loop++) | ||
469 : | { | ||
470 : | /* Write U scanline */ | ||
471 : | fwrite(u, 1, XDIM/2, filehandle); | ||
472 : | |||
473 : | /* Write V scanline */ | ||
474 : | fwrite(v, 1, XDIM/2, filehandle); | ||
475 : | |||
476 : | /* Update pointers */ | ||
477 : | u += XDIM/2; | ||
478 : | v += XDIM/2; | ||
479 : | |||
480 : | } | ||
481 : | |||
482 : | /* Close file */ | ||
483 : | chl | 376 | fclose(filehandle); |
484 : | edgomez | 547 | |
485 : | chl | 376 | return 0; |
486 : | } | ||
487 : | else | ||
488 : | return 1; | ||
489 : | } | ||
490 : | |||
491 : | edgomez | 547 | /***************************************************************************** |
492 : | * Routines for decoding: init decoder, use, and stop decoder | ||
493 : | ****************************************************************************/ | ||
494 : | chl | 376 | |
495 : | edgomez | 547 | /* init decoder before first run */ |
496 : | static int | ||
497 : | dec_init(int use_assembler) | ||
498 : | chl | 376 | { |
499 : | int xerr; | ||
500 : | |||
501 : | XVID_INIT_PARAM xinit; | ||
502 : | XVID_DEC_PARAM xparam; | ||
503 : | |||
504 : | if(use_assembler) | ||
505 : | suxen_drol | 860 | #ifdef ARCH_IS_IA64 |
506 : | chl | 376 | xinit.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
507 : | #else | ||
508 : | xinit.cpu_flags = 0; | ||
509 : | #endif | ||
510 : | else | ||
511 : | xinit.cpu_flags = XVID_CPU_FORCE; | ||
512 : | |||
513 : | xvid_init(NULL, 0, &xinit, NULL); | ||
514 : | xparam.width = XDIM; | ||
515 : | xparam.height = YDIM; | ||
516 : | |||
517 : | xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL); | ||
518 : | edgomez | 851 | |
519 : | chl | 376 | 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 : | edgomez | 851 | unsigned char *ostream, |
528 : | int istream_size, | ||
529 : | int *ostream_size, | ||
530 : | int *notification) | ||
531 : | edgomez | 547 | { |
532 : | chl | 376 | |
533 : | int xerr; | ||
534 : | XVID_DEC_FRAME xframe; | ||
535 : | edgomez | 851 | XVID_DEC_STATS xstats; |
536 : | chl | 376 | |
537 : | edgomez | 851 | xframe.general = 0; |
538 : | xframe.bitstream = istream; | ||
539 : | xframe.length = istream_size; | ||
540 : | xframe.image = ostream; | ||
541 : | xframe.stride = XDIM; | ||
542 : | xframe.colorspace = XVID_CSP_YV12; | ||
543 : | chl | 376 | |
544 : | edgomez | 851 | xerr = xvid_decore(dec_handle, XVID_DEC_DECODE, &xframe, &xstats); |
545 : | chl | 376 | |
546 : | edgomez | 851 | *ostream_size = xframe.length; |
547 : | chl | 376 | |
548 : | edgomez | 851 | *notification = xstats.notify; |
549 : | |||
550 : | chl | 376 | return xerr; |
551 : | } | ||
552 : | |||
553 : | edgomez | 547 | /* close decoder to release resources */ |
554 : | static int | ||
555 : | dec_stop() | ||
556 : | chl | 376 | { |
557 : | int xerr; | ||
558 : | edgomez | 547 | |
559 : | chl | 376 | xerr = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
560 : | |||
561 : | return xerr; | ||
562 : | } |
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