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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 | 945 | * $Id: xvid_decraw.c,v 1.7.2.2 2003-03-26 10:29:10 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 : | * -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 : | suxen_drol | 945 | |
100 : | const char * type2str(int type) | ||
101 : | { | ||
102 : | if (type==XVID_TYPE_IVOP) | ||
103 : | return "I"; | ||
104 : | if (type==XVID_TYPE_PVOP) | ||
105 : | return "P"; | ||
106 : | if (type==XVID_TYPE_BVOP) | ||
107 : | return "B"; | ||
108 : | return "S"; | ||
109 : | } | ||
110 : | |||
111 : | edgomez | 547 | /***************************************************************************** |
112 : | * Main program | ||
113 : | ****************************************************************************/ | ||
114 : | |||
115 : | int main(int argc, char *argv[]) | ||
116 : | chl | 376 | { |
117 : | edgomez | 547 | unsigned char *mp4_buffer = NULL; |
118 : | unsigned char *mp4_ptr = NULL; | ||
119 : | unsigned char *out_buffer = NULL; | ||
120 : | edgomez | 851 | int still_left_in_buffer; |
121 : | edgomez | 918 | xvid_dec_stats_t xvid_dec_stats; |
122 : | edgomez | 851 | |
123 : | edgomez | 547 | double totaldectime; |
124 : | |||
125 : | long totalsize; | ||
126 : | int status; | ||
127 : | |||
128 : | int use_assembler = 0; | ||
129 : | |||
130 : | char filename[256]; | ||
131 : | |||
132 : | FILE *in_file; | ||
133 : | int filenr; | ||
134 : | int i; | ||
135 : | |||
136 : | printf("xvid_decraw - raw mpeg4 bitstream decoder "); | ||
137 : | edgomez | 851 | printf("written by Christoph Lampert 2002-2003\n\n"); |
138 : | edgomez | 547 | |
139 : | /***************************************************************************** | ||
140 : | * Command line parsing | ||
141 : | ****************************************************************************/ | ||
142 : | |||
143 : | for (i=1; i< argc; i++) { | ||
144 : | |||
145 : | if (strcmp("-asm", argv[i]) == 0 ) { | ||
146 : | use_assembler = 1; | ||
147 : | } | ||
148 : | edgomez | 918 | else if (strcmp("-d", argv[i]) == 0) { |
149 : | ARG_SAVEDECOUTPUT = 1; | ||
150 : | edgomez | 547 | } |
151 : | else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { | ||
152 : | i++; | ||
153 : | ARG_INPUTFILE = argv[i]; | ||
154 : | } | ||
155 : | edgomez | 918 | else if (strcmp("-m", argv[i]) == 0) { |
156 : | ARG_SAVEMPEGSTREAM = 1; | ||
157 : | edgomez | 547 | } |
158 : | else if (strcmp("-help", argv[i])) { | ||
159 : | usage(); | ||
160 : | return(0); | ||
161 : | } | ||
162 : | else { | ||
163 : | usage(); | ||
164 : | exit(-1); | ||
165 : | } | ||
166 : | |||
167 : | chl | 376 | } |
168 : | edgomez | 547 | |
169 : | /***************************************************************************** | ||
170 : | * Values checking | ||
171 : | ****************************************************************************/ | ||
172 : | |||
173 : | if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { | ||
174 : | in_file = stdin; | ||
175 : | } | ||
176 : | else { | ||
177 : | |||
178 : | in_file = fopen(ARG_INPUTFILE, "rb"); | ||
179 : | if (in_file == NULL) { | ||
180 : | fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); | ||
181 : | edgomez | 918 | return(-1); |
182 : | edgomez | 547 | } |
183 : | } | ||
184 : | |||
185 : | /***************************************************************************** | ||
186 : | * Memory allocation | ||
187 : | ****************************************************************************/ | ||
188 : | |||
189 : | /* Memory for encoded mp4 stream */ | ||
190 : | mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); | ||
191 : | mp4_ptr = mp4_buffer; | ||
192 : | if (!mp4_buffer) | ||
193 : | goto free_all_memory; | ||
194 : | |||
195 : | /***************************************************************************** | ||
196 : | * XviD PART Start | ||
197 : | ****************************************************************************/ | ||
198 : | |||
199 : | status = dec_init(use_assembler); | ||
200 : | if (status) { | ||
201 : | fprintf(stderr, | ||
202 : | edgomez | 918 | "Decore INIT problem, return value %d\n", status); |
203 : | edgomez | 547 | goto release_all; |
204 : | } | ||
205 : | |||
206 : | |||
207 : | /***************************************************************************** | ||
208 : | * Main loop | ||
209 : | ****************************************************************************/ | ||
210 : | |||
211 : | edgomez | 851 | /* Fill the buffer */ |
212 : | still_left_in_buffer = fread(mp4_buffer, 1, BUFFER_SIZE, in_file); | ||
213 : | edgomez | 559 | |
214 : | edgomez | 547 | totaldectime = 0; |
215 : | totalsize = 0; | ||
216 : | filenr = 0; | ||
217 : | mp4_ptr = mp4_buffer; | ||
218 : | |||
219 : | do { | ||
220 : | |||
221 : | int mp4_size = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
222 : | int used_bytes = 0; | ||
223 : | double dectime; | ||
224 : | |||
225 : | edgomez | 851 | /* |
226 : | * If the buffer is half empty or there are no more bytes in it | ||
227 : | * then fill it. | ||
228 : | */ | ||
229 : | if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2 || | ||
230 : | still_left_in_buffer <= 0) { | ||
231 : | int rest = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
232 : | edgomez | 547 | |
233 : | edgomez | 851 | /* Move data if needed */ |
234 : | if (rest) | ||
235 : | memcpy(mp4_buffer, mp4_ptr, rest); | ||
236 : | edgomez | 547 | |
237 : | edgomez | 851 | /* Update mp4_ptr */ |
238 : | mp4_ptr = mp4_buffer; | ||
239 : | edgomez | 547 | |
240 : | edgomez | 851 | /* read new data */ |
241 : | suxen_drol | 945 | if(feof(in_file)) |
242 : | edgomez | 547 | break; |
243 : | |||
244 : | edgomez | 851 | still_left_in_buffer = fread(mp4_buffer + rest, |
245 : | 1, | ||
246 : | BUFFER_SIZE - rest, | ||
247 : | in_file); | ||
248 : | edgomez | 547 | |
249 : | } | ||
250 : | |||
251 : | |||
252 : | edgomez | 918 | /* This loop is needed to handle VOL/NVOP reading */ |
253 : | edgomez | 851 | do { |
254 : | edgomez | 547 | |
255 : | edgomez | 851 | /* Decode frame */ |
256 : | dectime = msecond(); | ||
257 : | edgomez | 918 | used_bytes = dec_main(mp4_ptr, out_buffer, mp4_size, &xvid_dec_stats); |
258 : | edgomez | 851 | dectime = msecond() - dectime; |
259 : | edgomez | 547 | |
260 : | edgomez | 918 | /* Resize image buffer if needed */ |
261 : | if(xvid_dec_stats.type == XVID_TYPE_VOL) { | ||
262 : | |||
263 : | /* Free old output buffer*/ | ||
264 : | if(out_buffer) free(out_buffer); | ||
265 : | |||
266 : | /* Copy witdh and height from the vol structure */ | ||
267 : | XDIM = xvid_dec_stats.data.vol.width; | ||
268 : | YDIM = xvid_dec_stats.data.vol.height; | ||
269 : | |||
270 : | /* Allocate the new buffer */ | ||
271 : | if((out_buffer = (unsigned char*)malloc(XDIM*YDIM*4)) == NULL) | ||
272 : | goto free_all_memory; | ||
273 : | edgomez | 851 | } |
274 : | edgomez | 547 | |
275 : | edgomez | 851 | /* Update buffer pointers */ |
276 : | edgomez | 918 | if(used_bytes > 0) { |
277 : | mp4_ptr += used_bytes; | ||
278 : | still_left_in_buffer -= used_bytes; | ||
279 : | edgomez | 559 | |
280 : | edgomez | 918 | /* Total size */ |
281 : | totalsize += used_bytes; | ||
282 : | } | ||
283 : | edgomez | 547 | |
284 : | suxen_drol | 945 | }while(xvid_dec_stats.type <= 0 && still_left_in_buffer > 0); |
285 : | edgomez | 547 | |
286 : | edgomez | 851 | /* Negative buffer would mean we went too far */ |
287 : | suxen_drol | 945 | if(still_left_in_buffer <= 0) |
288 : | break; | ||
289 : | edgomez | 851 | |
290 : | suxen_drol | 945 | /* Updated data - Count only usefull decode time */ |
291 : | edgomez | 851 | totaldectime += dectime; |
292 : | edgomez | 547 | |
293 : | edgomez | 851 | |
294 : | suxen_drol | 945 | printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
295 : | filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); | ||
296 : | |||
297 : | edgomez | 851 | /* Save individual mpeg4 stream if required */ |
298 : | edgomez | 918 | if(ARG_SAVEMPEGSTREAM) { |
299 : | edgomez | 547 | FILE *filehandle = NULL; |
300 : | |||
301 : | sprintf(filename, "%sframe%05d.m4v", filepath, filenr); | ||
302 : | filehandle = fopen(filename, "wb"); | ||
303 : | if(!filehandle) { | ||
304 : | fprintf(stderr, | ||
305 : | edgomez | 851 | "Error writing single mpeg4 stream to file %s\n", |
306 : | filename); | ||
307 : | edgomez | 547 | } |
308 : | else { | ||
309 : | edgomez | 851 | fwrite(mp4_buffer, 1, used_bytes, filehandle); |
310 : | edgomez | 547 | fclose(filehandle); |
311 : | } | ||
312 : | } | ||
313 : | edgomez | 851 | |
314 : | edgomez | 547 | /* Save output frame if required */ |
315 : | if (ARG_SAVEDECOUTPUT) { | ||
316 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
317 : | if(write_pgm(filename,out_buffer)) { | ||
318 : | fprintf(stderr, | ||
319 : | edgomez | 851 | "Error writing decoded PGM frame %s\n", |
320 : | filename); | ||
321 : | edgomez | 547 | } |
322 : | } | ||
323 : | |||
324 : | filenr++; | ||
325 : | |||
326 : | edgomez | 851 | } while ( (status>=0) && (filenr<ABS_MAXFRAMENR)); |
327 : | edgomez | 547 | |
328 : | /***************************************************************************** | ||
329 : | edgomez | 851 | * Flush decoder buffers |
330 : | ****************************************************************************/ | ||
331 : | edgomez | 918 | |
332 : | suxen_drol | 945 | do { |
333 : | edgomez | 851 | |
334 : | /* Fake vars */ | ||
335 : | edgomez | 918 | int used_bytes; |
336 : | edgomez | 851 | double dectime; |
337 : | |||
338 : | suxen_drol | 945 | do { |
339 : | dectime = msecond(); | ||
340 : | used_bytes = dec_main(NULL, out_buffer, -1, &xvid_dec_stats); | ||
341 : | dectime = msecond() - dectime; | ||
342 : | }while(used_bytes>=0 && xvid_dec_stats.type <= 0); | ||
343 : | edgomez | 851 | |
344 : | suxen_drol | 945 | if (used_bytes < 0) { /* XVID_ERR_END */ |
345 : | break; | ||
346 : | } | ||
347 : | |||
348 : | edgomez | 851 | /* Updated data - Count only usefull decode time */ |
349 : | totaldectime += dectime; | ||
350 : | |||
351 : | /* Prints some decoding stats */ | ||
352 : | suxen_drol | 945 | printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
353 : | filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); | ||
354 : | edgomez | 851 | |
355 : | /* Save output frame if required */ | ||
356 : | if (ARG_SAVEDECOUTPUT) { | ||
357 : | sprintf(filename, "%sdec%05d.pgm", filepath, filenr); | ||
358 : | edgomez | 918 | if(write_pgm(filename, out_buffer)) { |
359 : | edgomez | 851 | fprintf(stderr, |
360 : | "Error writing decoded PGM frame %s\n", | ||
361 : | filename); | ||
362 : | } | ||
363 : | } | ||
364 : | |||
365 : | filenr++; | ||
366 : | |||
367 : | suxen_drol | 945 | }while(1); |
368 : | edgomez | 851 | |
369 : | /***************************************************************************** | ||
370 : | edgomez | 547 | * Calculate totals and averages for output, print results |
371 : | ****************************************************************************/ | ||
372 : | |||
373 : | totalsize /= filenr; | ||
374 : | totaldectime /= filenr; | ||
375 : | |||
376 : | edgomez | 851 | printf("Avg: dectime(ms) =%7.2f, fps =%7.2f, length(bytes) =%7d\n", |
377 : | edgomez | 918 | totaldectime, 1000/totaldectime, (int)totalsize); |
378 : | edgomez | 547 | |
379 : | /***************************************************************************** | ||
380 : | * XviD PART Stop | ||
381 : | edgomez | 559 | ****************************************************************************/ |
382 : | edgomez | 547 | |
383 : | release_all: | ||
384 : | if (dec_handle) { | ||
385 : | status = dec_stop(); | ||
386 : | if (status) | ||
387 : | fprintf(stderr, "decore RELEASE problem return value %d\n", status); | ||
388 : | } | ||
389 : | |||
390 : | free_all_memory: | ||
391 : | free(out_buffer); | ||
392 : | free(mp4_buffer); | ||
393 : | |||
394 : | edgomez | 918 | return(0); |
395 : | chl | 376 | } |
396 : | |||
397 : | edgomez | 547 | /***************************************************************************** |
398 : | * Usage function | ||
399 : | ****************************************************************************/ | ||
400 : | chl | 376 | |
401 : | edgomez | 547 | static void usage() |
402 : | chl | 376 | { |
403 : | edgomez | 547 | |
404 : | fprintf(stderr, "Usage : xvid_decraw <-w width> <-h height> [OPTIONS]\n"); | ||
405 : | fprintf(stderr, "Options :\n"); | ||
406 : | fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); | ||
407 : | fprintf(stderr, " -i string : input filename (default=stdin)\n"); | ||
408 : | fprintf(stderr, " -t integer : input data type (raw=0, mp4u=1)\n"); | ||
409 : | edgomez | 918 | fprintf(stderr, " -d : save decoder output\n"); |
410 : | fprintf(stderr, " -m : save mpeg4 raw stream to individual files\n"); | ||
411 : | edgomez | 547 | fprintf(stderr, " -help : This help message\n"); |
412 : | fprintf(stderr, " (* means default)\n"); | ||
413 : | |||
414 : | } | ||
415 : | |||
416 : | /***************************************************************************** | ||
417 : | * "helper" functions | ||
418 : | ****************************************************************************/ | ||
419 : | |||
420 : | /* return the current time in milli seconds */ | ||
421 : | static double | ||
422 : | msecond() | ||
423 : | { | ||
424 : | edgomez | 824 | #ifndef WIN32 |
425 : | edgomez | 547 | struct timeval tv; |
426 : | gettimeofday(&tv, 0); | ||
427 : | edgomez | 918 | return((double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3); |
428 : | edgomez | 547 | #else |
429 : | clock_t clk; | ||
430 : | clk = clock(); | ||
431 : | edgomez | 918 | return(clk * 1000 / CLOCKS_PER_SEC); |
432 : | edgomez | 547 | #endif |
433 : | } | ||
434 : | |||
435 : | /***************************************************************************** | ||
436 : | * output functions | ||
437 : | ****************************************************************************/ | ||
438 : | |||
439 : | static int | ||
440 : | write_pgm(char *filename, | ||
441 : | edgomez | 918 | unsigned char *image) |
442 : | edgomez | 547 | { |
443 : | int loop; | ||
444 : | |||
445 : | unsigned char *y = image; | ||
446 : | unsigned char *u = image + XDIM*YDIM; | ||
447 : | unsigned char *v = image + XDIM*YDIM + XDIM/2*YDIM/2; | ||
448 : | |||
449 : | chl | 376 | FILE *filehandle; |
450 : | edgomez | 547 | filehandle=fopen(filename,"w+b"); |
451 : | if (filehandle) { | ||
452 : | chl | 376 | |
453 : | edgomez | 547 | /* Write header */ |
454 : | fprintf(filehandle,"P5\n\n%d %d 255\n", XDIM,YDIM*3/2); | ||
455 : | |||
456 : | /* Write Y data */ | ||
457 : | fwrite(y, 1, XDIM*YDIM, filehandle); | ||
458 : | |||
459 : | for(loop=0; loop<YDIM/2; loop++) | ||
460 : | { | ||
461 : | /* Write U scanline */ | ||
462 : | fwrite(u, 1, XDIM/2, filehandle); | ||
463 : | |||
464 : | /* Write V scanline */ | ||
465 : | fwrite(v, 1, XDIM/2, filehandle); | ||
466 : | |||
467 : | /* Update pointers */ | ||
468 : | u += XDIM/2; | ||
469 : | v += XDIM/2; | ||
470 : | |||
471 : | } | ||
472 : | |||
473 : | /* Close file */ | ||
474 : | chl | 376 | fclose(filehandle); |
475 : | edgomez | 547 | |
476 : | edgomez | 918 | return(0); |
477 : | chl | 376 | } |
478 : | else | ||
479 : | edgomez | 918 | return(1); |
480 : | chl | 376 | } |
481 : | |||
482 : | edgomez | 547 | /***************************************************************************** |
483 : | * Routines for decoding: init decoder, use, and stop decoder | ||
484 : | ****************************************************************************/ | ||
485 : | chl | 376 | |
486 : | edgomez | 547 | /* init decoder before first run */ |
487 : | static int | ||
488 : | dec_init(int use_assembler) | ||
489 : | chl | 376 | { |
490 : | edgomez | 918 | int ret; |
491 : | chl | 376 | |
492 : | edgomez | 918 | xvid_gbl_init_t xvid_gbl_init; |
493 : | xvid_dec_create_t xvid_dec_create; | ||
494 : | chl | 376 | |
495 : | edgomez | 918 | /*------------------------------------------------------------------------ |
496 : | * XviD core initialization | ||
497 : | *----------------------------------------------------------------------*/ | ||
498 : | |||
499 : | /* Version */ | ||
500 : | xvid_gbl_init.version = XVID_VERSION; | ||
501 : | |||
502 : | /* Assembly setting */ | ||
503 : | if(use_assembler) | ||
504 : | suxen_drol | 860 | #ifdef ARCH_IS_IA64 |
505 : | edgomez | 918 | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
506 : | chl | 376 | #else |
507 : | edgomez | 918 | xvid_gbl_init.cpu_flags = 0; |
508 : | chl | 376 | #endif |
509 : | edgomez | 918 | else |
510 : | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE; | ||
511 : | chl | 376 | |
512 : | edgomez | 918 | xvid_global(NULL, 0, &xvid_gbl_init, NULL); |
513 : | chl | 376 | |
514 : | edgomez | 918 | /*------------------------------------------------------------------------ |
515 : | * XviD encoder initialization | ||
516 : | *----------------------------------------------------------------------*/ | ||
517 : | edgomez | 851 | |
518 : | edgomez | 918 | /* Version */ |
519 : | xvid_dec_create.version = XVID_VERSION; | ||
520 : | chl | 376 | |
521 : | edgomez | 918 | /* |
522 : | * Image dimensions -- set to 0, xvidcore will resize when ever it is | ||
523 : | * needed | ||
524 : | */ | ||
525 : | xvid_dec_create.width = 0; | ||
526 : | xvid_dec_create.height = 0; | ||
527 : | |||
528 : | ret = xvid_decore(NULL, XVID_DEC_CREATE, &xvid_dec_create, NULL); | ||
529 : | |||
530 : | dec_handle = xvid_dec_create.handle; | ||
531 : | |||
532 : | return(ret); | ||
533 : | chl | 376 | } |
534 : | |||
535 : | edgomez | 547 | /* decode one frame */ |
536 : | static int | ||
537 : | dec_main(unsigned char *istream, | ||
538 : | edgomez | 851 | unsigned char *ostream, |
539 : | int istream_size, | ||
540 : | edgomez | 918 | xvid_dec_stats_t *xvid_dec_stats) |
541 : | edgomez | 547 | { |
542 : | chl | 376 | |
543 : | edgomez | 918 | int ret; |
544 : | chl | 376 | |
545 : | edgomez | 918 | xvid_dec_frame_t xvid_dec_frame; |
546 : | chl | 376 | |
547 : | edgomez | 918 | /* Set version */ |
548 : | xvid_dec_frame.version = XVID_VERSION; | ||
549 : | xvid_dec_stats->version = XVID_VERSION; | ||
550 : | chl | 376 | |
551 : | edgomez | 918 | /* No general flags to set */ |
552 : | xvid_dec_frame.general = 0; | ||
553 : | chl | 376 | |
554 : | edgomez | 918 | /* Input stream */ |
555 : | xvid_dec_frame.bitstream = istream; | ||
556 : | xvid_dec_frame.length = istream_size; | ||
557 : | edgomez | 851 | |
558 : | edgomez | 918 | /* Output frame structure */ |
559 : | xvid_dec_frame.output.plane[0] = ostream; | ||
560 : | xvid_dec_frame.output.stride[0] = XDIM; | ||
561 : | xvid_dec_frame.output.csp = XVID_CSP_I420; | ||
562 : | |||
563 : | ret = xvid_decore(dec_handle, XVID_DEC_DECODE, &xvid_dec_frame, xvid_dec_stats); | ||
564 : | |||
565 : | return(ret); | ||
566 : | chl | 376 | } |
567 : | |||
568 : | edgomez | 547 | /* close decoder to release resources */ |
569 : | static int | ||
570 : | dec_stop() | ||
571 : | chl | 376 | { |
572 : | edgomez | 918 | int ret; |
573 : | edgomez | 547 | |
574 : | edgomez | 918 | ret = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
575 : | chl | 376 | |
576 : | edgomez | 918 | return(ret); |
577 : | chl | 376 | } |
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