Parent Directory | Revision Log
Revision 1432 - (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 : | edgomez | 1382 | * 2002-2003 Edouard Gomez <ed.gomez@free.fr> |
8 : | chl | 376 | * |
9 : | edgomez | 547 | * This program is free software; you can redistribute it and/or modify |
10 : | * it under the terms of the GNU General Public License as published by | ||
11 : | * the Free Software Foundation; either version 2 of the License, or | ||
12 : | * (at your option) any later version. | ||
13 : | chl | 376 | * |
14 : | edgomez | 547 | * This program is distributed in the hope that it will be useful, |
15 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 : | * GNU General Public License for more details. | ||
18 : | chl | 376 | * |
19 : | edgomez | 547 | * You should have received a copy of the GNU General Public License |
20 : | * along with this program; if not, write to the Free Software | ||
21 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 : | * | ||
23 : | edgomez | 1432 | * $Id: xvid_decraw.c,v 1.14 2004-04-15 19:44:05 edgomez Exp $ |
24 : | edgomez | 547 | * |
25 : | ****************************************************************************/ | ||
26 : | chl | 376 | |
27 : | edgomez | 547 | /***************************************************************************** |
28 : | chl | 376 | * |
29 : | edgomez | 547 | * Application notes : |
30 : | chl | 376 | * |
31 : | edgomez | 547 | * An MPEG-4 bitstream is read from an input file (or stdin) and decoded, |
32 : | * the speed for this is measured. | ||
33 : | edgomez | 1382 | * |
34 : | * The program is plain C and needs no libraries except for libxvidcore, | ||
35 : | * and maths-lib. | ||
36 : | chl | 376 | * |
37 : | edgomez | 1382 | * Use ./xvid_decraw -help for a list of options |
38 : | chl | 376 | * |
39 : | edgomez | 547 | ****************************************************************************/ |
40 : | chl | 376 | |
41 : | #include <stdio.h> | ||
42 : | #include <stdlib.h> | ||
43 : | edgomez | 547 | #include <string.h> |
44 : | #include <math.h> | ||
45 : | edgomez | 824 | #ifndef WIN32 |
46 : | edgomez | 547 | #include <sys/time.h> |
47 : | #else | ||
48 : | #include <time.h> | ||
49 : | #endif | ||
50 : | chl | 376 | |
51 : | edgomez | 547 | #include "xvid.h" |
52 : | chl | 376 | |
53 : | edgomez | 547 | /***************************************************************************** |
54 : | * Global vars in module and constants | ||
55 : | ****************************************************************************/ | ||
56 : | chl | 376 | |
57 : | edgomez | 547 | /* max number of frames */ |
58 : | #define ABS_MAXFRAMENR 9999 | ||
59 : | chl | 376 | |
60 : | edgomez | 1423 | #define USE_PNM 0 |
61 : | #define USE_TGA 1 | ||
62 : | |||
63 : | edgomez | 547 | static int XDIM = 0; |
64 : | static int YDIM = 0; | ||
65 : | static int ARG_SAVEDECOUTPUT = 0; | ||
66 : | static int ARG_SAVEMPEGSTREAM = 0; | ||
67 : | static char *ARG_INPUTFILE = NULL; | ||
68 : | edgomez | 1423 | static int CSP = XVID_CSP_I420; |
69 : | static int BPP = 1; | ||
70 : | static int FORMAT = USE_PNM; | ||
71 : | chl | 376 | |
72 : | edgomez | 547 | static char filepath[256] = "./"; |
73 : | static void *dec_handle = NULL; | ||
74 : | chl | 376 | |
75 : | edgomez | 1382 | #define BUFFER_SIZE (2*1024*1024) |
76 : | chl | 376 | |
77 : | edgomez | 547 | /***************************************************************************** |
78 : | * Local prototypes | ||
79 : | ****************************************************************************/ | ||
80 : | chl | 376 | |
81 : | edgomez | 547 | static double msecond(); |
82 : | edgomez | 1432 | static int write_pgm(char *filename, |
83 : | unsigned char *image); | ||
84 : | suxen_drol | 1416 | static int dec_init(int use_assembler, int debug_level); |
85 : | edgomez | 547 | static int dec_main(unsigned char *istream, |
86 : | edgomez | 851 | unsigned char *ostream, |
87 : | int istream_size, | ||
88 : | edgomez | 1382 | xvid_dec_stats_t *xvid_dec_stats); |
89 : | edgomez | 547 | static int dec_stop(); |
90 : | static void usage(); | ||
91 : | edgomez | 1432 | int write_image(char *prefix, unsigned char *image); |
92 : | int write_pnm(char *filename, unsigned char *image); | ||
93 : | int write_tga(char *filename, unsigned char *image); | ||
94 : | edgomez | 547 | |
95 : | edgomez | 1382 | const char * type2str(int type) |
96 : | { | ||
97 : | if (type==XVID_TYPE_IVOP) | ||
98 : | return "I"; | ||
99 : | if (type==XVID_TYPE_PVOP) | ||
100 : | return "P"; | ||
101 : | if (type==XVID_TYPE_BVOP) | ||
102 : | return "B"; | ||
103 : | return "S"; | ||
104 : | } | ||
105 : | |||
106 : | edgomez | 547 | /***************************************************************************** |
107 : | * Main program | ||
108 : | ****************************************************************************/ | ||
109 : | |||
110 : | int main(int argc, char *argv[]) | ||
111 : | chl | 376 | { |
112 : | edgomez | 547 | unsigned char *mp4_buffer = NULL; |
113 : | unsigned char *mp4_ptr = NULL; | ||
114 : | unsigned char *out_buffer = NULL; | ||
115 : | edgomez | 1382 | int useful_bytes; |
116 : | xvid_dec_stats_t xvid_dec_stats; | ||
117 : | edgomez | 851 | |
118 : | edgomez | 547 | double totaldectime; |
119 : | |||
120 : | long totalsize; | ||
121 : | int status; | ||
122 : | |||
123 : | int use_assembler = 0; | ||
124 : | suxen_drol | 1416 | int debug_level = 0; |
125 : | edgomez | 547 | |
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 : | edgomez | 851 | printf("written by Christoph Lampert 2002-2003\n\n"); |
134 : | edgomez | 547 | |
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 : | suxen_drol | 1416 | } else if (strcmp("-debug", argv[i]) == 0 && i < argc - 1 ) { |
144 : | i++; | ||
145 : | if (sscanf(argv[i], "0x%x", &debug_level) != 1) { | ||
146 : | debug_level = atoi(argv[i]); | ||
147 : | } | ||
148 : | edgomez | 1382 | } else if (strcmp("-d", argv[i]) == 0) { |
149 : | ARG_SAVEDECOUTPUT = 1; | ||
150 : | } else if (strcmp("-i", argv[i]) == 0 && i < argc - 1 ) { | ||
151 : | edgomez | 547 | i++; |
152 : | ARG_INPUTFILE = argv[i]; | ||
153 : | edgomez | 1382 | } else if (strcmp("-m", argv[i]) == 0) { |
154 : | ARG_SAVEMPEGSTREAM = 1; | ||
155 : | edgomez | 1423 | } else if (strcmp("-c", argv[i]) == 0 && i < argc - 1 ) { |
156 : | i++; | ||
157 : | if (strcmp(argv[i], "rgb16") == 0) { | ||
158 : | CSP = XVID_CSP_RGB555; | ||
159 : | BPP = 2; | ||
160 : | } else if (strcmp(argv[i], "rgb24") == 0) { | ||
161 : | CSP = XVID_CSP_BGR; | ||
162 : | BPP = 3; | ||
163 : | } else if (strcmp(argv[i], "rgb32") == 0) { | ||
164 : | CSP = XVID_CSP_BGRA; | ||
165 : | BPP = 4; | ||
166 : | } else if (strcmp(argv[i], "yv12") == 0) { | ||
167 : | CSP = XVID_CSP_YV12; | ||
168 : | BPP = 1; | ||
169 : | } else { | ||
170 : | CSP = XVID_CSP_I420; | ||
171 : | BPP = 1; | ||
172 : | } | ||
173 : | } else if (strcmp("-f", argv[i]) == 0 && i < argc -1) { | ||
174 : | i++; | ||
175 : | if (strcmp(argv[i], "tga") == 0) { | ||
176 : | FORMAT = USE_TGA; | ||
177 : | } else { | ||
178 : | FORMAT = USE_PNM; | ||
179 : | } | ||
180 : | edgomez | 1382 | } else if (strcmp("-help", argv[i]) == 0) { |
181 : | edgomez | 547 | usage(); |
182 : | return(0); | ||
183 : | edgomez | 1382 | } else { |
184 : | edgomez | 547 | usage(); |
185 : | exit(-1); | ||
186 : | } | ||
187 : | chl | 376 | } |
188 : | edgomez | 1432 | |
189 : | suxen_drol | 1426 | #if defined(_MSC_VER) |
190 : | if (ARG_INPUTFILE==NULL) { | ||
191 : | edgomez | 1432 | fprintf(stderr, "Warning: MSVC build does not read EOF correctly from stdin. Use the -i switch.\n\n"); |
192 : | suxen_drol | 1426 | } |
193 : | #endif | ||
194 : | edgomez | 1432 | |
195 : | edgomez | 547 | /***************************************************************************** |
196 : | * Values checking | ||
197 : | ****************************************************************************/ | ||
198 : | |||
199 : | if ( ARG_INPUTFILE == NULL || strcmp(ARG_INPUTFILE, "stdin") == 0) { | ||
200 : | in_file = stdin; | ||
201 : | } | ||
202 : | else { | ||
203 : | |||
204 : | in_file = fopen(ARG_INPUTFILE, "rb"); | ||
205 : | if (in_file == NULL) { | ||
206 : | fprintf(stderr, "Error opening input file %s\n", ARG_INPUTFILE); | ||
207 : | edgomez | 1382 | return(-1); |
208 : | edgomez | 547 | } |
209 : | } | ||
210 : | |||
211 : | edgomez | 1423 | /* PNM/PGM format can't handle 16/32 bit data */ |
212 : | if (BPP != 1 && BPP != 3 && FORMAT == USE_PNM) { | ||
213 : | FORMAT = USE_TGA; | ||
214 : | } | ||
215 : | |||
216 : | edgomez | 547 | /***************************************************************************** |
217 : | * Memory allocation | ||
218 : | ****************************************************************************/ | ||
219 : | |||
220 : | /* Memory for encoded mp4 stream */ | ||
221 : | mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE); | ||
222 : | mp4_ptr = mp4_buffer; | ||
223 : | if (!mp4_buffer) | ||
224 : | goto free_all_memory; | ||
225 : | |||
226 : | /***************************************************************************** | ||
227 : | * XviD PART Start | ||
228 : | ****************************************************************************/ | ||
229 : | |||
230 : | suxen_drol | 1416 | status = dec_init(use_assembler, debug_level); |
231 : | edgomez | 547 | if (status) { |
232 : | fprintf(stderr, | ||
233 : | edgomez | 1382 | "Decore INIT problem, return value %d\n", status); |
234 : | edgomez | 547 | goto release_all; |
235 : | } | ||
236 : | |||
237 : | |||
238 : | /***************************************************************************** | ||
239 : | * Main loop | ||
240 : | ****************************************************************************/ | ||
241 : | |||
242 : | edgomez | 851 | /* Fill the buffer */ |
243 : | edgomez | 1382 | useful_bytes = fread(mp4_buffer, 1, BUFFER_SIZE, in_file); |
244 : | edgomez | 559 | |
245 : | edgomez | 547 | totaldectime = 0; |
246 : | totalsize = 0; | ||
247 : | filenr = 0; | ||
248 : | mp4_ptr = mp4_buffer; | ||
249 : | |||
250 : | do { | ||
251 : | int used_bytes = 0; | ||
252 : | double dectime; | ||
253 : | |||
254 : | edgomez | 851 | /* |
255 : | * If the buffer is half empty or there are no more bytes in it | ||
256 : | * then fill it. | ||
257 : | */ | ||
258 : | edgomez | 1382 | if (mp4_ptr > mp4_buffer + BUFFER_SIZE/2) { |
259 : | int already_in_buffer = (mp4_buffer + BUFFER_SIZE - mp4_ptr); | ||
260 : | edgomez | 547 | |
261 : | edgomez | 851 | /* Move data if needed */ |
262 : | edgomez | 1382 | if (already_in_buffer > 0) |
263 : | memcpy(mp4_buffer, mp4_ptr, already_in_buffer); | ||
264 : | edgomez | 547 | |
265 : | edgomez | 851 | /* Update mp4_ptr */ |
266 : | mp4_ptr = mp4_buffer; | ||
267 : | edgomez | 547 | |
268 : | edgomez | 851 | /* read new data */ |
269 : | edgomez | 1382 | if(feof(in_file)) |
270 : | edgomez | 547 | break; |
271 : | |||
272 : | edgomez | 1382 | useful_bytes += fread(mp4_buffer + already_in_buffer, |
273 : | 1, BUFFER_SIZE - already_in_buffer, | ||
274 : | in_file); | ||
275 : | edgomez | 547 | |
276 : | } | ||
277 : | |||
278 : | |||
279 : | edgomez | 1382 | /* This loop is needed to handle VOL/NVOP reading */ |
280 : | edgomez | 851 | do { |
281 : | edgomez | 547 | |
282 : | edgomez | 851 | /* Decode frame */ |
283 : | dectime = msecond(); | ||
284 : | edgomez | 1382 | used_bytes = dec_main(mp4_ptr, out_buffer, useful_bytes, &xvid_dec_stats); |
285 : | edgomez | 851 | dectime = msecond() - dectime; |
286 : | edgomez | 547 | |
287 : | edgomez | 1382 | /* Resize image buffer if needed */ |
288 : | if(xvid_dec_stats.type == XVID_TYPE_VOL) { | ||
289 : | |||
290 : | /* Check if old buffer is smaller */ | ||
291 : | if(XDIM*YDIM < xvid_dec_stats.data.vol.width*xvid_dec_stats.data.vol.height) { | ||
292 : | |||
293 : | /* Copy new witdh and new height from the vol structure */ | ||
294 : | XDIM = xvid_dec_stats.data.vol.width; | ||
295 : | YDIM = xvid_dec_stats.data.vol.height; | ||
296 : | |||
297 : | /* Free old output buffer*/ | ||
298 : | if(out_buffer) free(out_buffer); | ||
299 : | |||
300 : | /* Allocate the new buffer */ | ||
301 : | out_buffer = (unsigned char*)malloc(XDIM*YDIM*4); | ||
302 : | if(out_buffer == NULL) | ||
303 : | goto free_all_memory; | ||
304 : | |||
305 : | fprintf(stderr, "Resized frame buffer to %dx%d\n", XDIM, YDIM); | ||
306 : | } | ||
307 : | edgomez | 851 | } |
308 : | edgomez | 547 | |
309 : | edgomez | 851 | /* Update buffer pointers */ |
310 : | edgomez | 1382 | if(used_bytes > 0) { |
311 : | mp4_ptr += used_bytes; | ||
312 : | useful_bytes -= used_bytes; | ||
313 : | edgomez | 559 | |
314 : | edgomez | 1382 | /* Total size */ |
315 : | totalsize += used_bytes; | ||
316 : | } | ||
317 : | edgomez | 547 | |
318 : | edgomez | 1382 | }while(xvid_dec_stats.type <= 0 && useful_bytes > 0); |
319 : | edgomez | 547 | |
320 : | edgomez | 1382 | /* Check if there is a negative number of useful bytes left in buffer |
321 : | * This means we went too far */ | ||
322 : | if(useful_bytes < 0) | ||
323 : | break; | ||
324 : | edgomez | 851 | |
325 : | edgomez | 1382 | /* Updated data - Count only usefull decode time */ |
326 : | edgomez | 851 | totaldectime += dectime; |
327 : | edgomez | 547 | |
328 : | edgomez | 851 | |
329 : | edgomez | 1382 | printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
330 : | filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); | ||
331 : | |||
332 : | edgomez | 851 | /* Save individual mpeg4 stream if required */ |
333 : | edgomez | 1382 | if(ARG_SAVEMPEGSTREAM) { |
334 : | edgomez | 547 | FILE *filehandle = NULL; |
335 : | |||
336 : | sprintf(filename, "%sframe%05d.m4v", filepath, filenr); | ||
337 : | filehandle = fopen(filename, "wb"); | ||
338 : | if(!filehandle) { | ||
339 : | fprintf(stderr, | ||
340 : | edgomez | 851 | "Error writing single mpeg4 stream to file %s\n", |
341 : | filename); | ||
342 : | edgomez | 547 | } |
343 : | else { | ||
344 : | edgomez | 1382 | fwrite(mp4_ptr-used_bytes, 1, used_bytes, filehandle); |
345 : | edgomez | 547 | fclose(filehandle); |
346 : | } | ||
347 : | } | ||
348 : | edgomez | 851 | |
349 : | edgomez | 547 | /* Save output frame if required */ |
350 : | if (ARG_SAVEDECOUTPUT) { | ||
351 : | edgomez | 1423 | sprintf(filename, "%sdec%05d", filepath, filenr); |
352 : | if(write_image(filename, out_buffer)) { | ||
353 : | edgomez | 547 | fprintf(stderr, |
354 : | edgomez | 1432 | "Error writing decoded PGM frame %s\n", |
355 : | edgomez | 851 | filename); |
356 : | edgomez | 547 | } |
357 : | } | ||
358 : | |||
359 : | filenr++; | ||
360 : | |||
361 : | edgomez | 851 | } while ( (status>=0) && (filenr<ABS_MAXFRAMENR)); |
362 : | edgomez | 547 | |
363 : | /***************************************************************************** | ||
364 : | edgomez | 851 | * Flush decoder buffers |
365 : | ****************************************************************************/ | ||
366 : | |||
367 : | edgomez | 1382 | do { |
368 : | |||
369 : | edgomez | 851 | /* Fake vars */ |
370 : | edgomez | 1382 | int used_bytes; |
371 : | edgomez | 851 | double dectime; |
372 : | |||
373 : | edgomez | 1382 | do { |
374 : | dectime = msecond(); | ||
375 : | used_bytes = dec_main(NULL, out_buffer, -1, &xvid_dec_stats); | ||
376 : | dectime = msecond() - dectime; | ||
377 : | }while(used_bytes>=0 && xvid_dec_stats.type <= 0); | ||
378 : | edgomez | 851 | |
379 : | edgomez | 1382 | if (used_bytes < 0) { /* XVID_ERR_END */ |
380 : | break; | ||
381 : | } | ||
382 : | edgomez | 851 | |
383 : | /* Updated data - Count only usefull decode time */ | ||
384 : | totaldectime += dectime; | ||
385 : | |||
386 : | /* Prints some decoding stats */ | ||
387 : | edgomez | 1382 | printf("Frame %5d: type = %s, dectime(ms) =%6.1f, length(bytes) =%7d\n", |
388 : | filenr, type2str(xvid_dec_stats.type), dectime, used_bytes); | ||
389 : | edgomez | 851 | |
390 : | /* Save output frame if required */ | ||
391 : | if (ARG_SAVEDECOUTPUT) { | ||
392 : | edgomez | 1423 | sprintf(filename, "%sdec%05d", filepath, filenr); |
393 : | if(write_image(filename, out_buffer)) { | ||
394 : | edgomez | 851 | fprintf(stderr, |
395 : | suxen_drol | 1426 | "Error writing decoded frame %s\n", |
396 : | edgomez | 851 | filename); |
397 : | } | ||
398 : | } | ||
399 : | |||
400 : | filenr++; | ||
401 : | |||
402 : | edgomez | 1382 | }while(1); |
403 : | edgomez | 851 | |
404 : | /***************************************************************************** | ||
405 : | edgomez | 547 | * Calculate totals and averages for output, print results |
406 : | ****************************************************************************/ | ||
407 : | |||
408 : | suxen_drol | 1426 | if (filenr>0) { |
409 : | edgomez | 1432 | totalsize /= filenr; |
410 : | suxen_drol | 1426 | totaldectime /= filenr; |
411 : | printf("Avg: dectime(ms) =%7.2f, fps =%7.2f, length(bytes) =%7d\n", | ||
412 : | totaldectime, 1000/totaldectime, (int)totalsize); | ||
413 : | }else{ | ||
414 : | printf("Nothing was decoded!\n"); | ||
415 : | } | ||
416 : | edgomez | 547 | |
417 : | /***************************************************************************** | ||
418 : | * XviD PART Stop | ||
419 : | edgomez | 559 | ****************************************************************************/ |
420 : | edgomez | 547 | |
421 : | release_all: | ||
422 : | if (dec_handle) { | ||
423 : | status = dec_stop(); | ||
424 : | if (status) | ||
425 : | fprintf(stderr, "decore RELEASE problem return value %d\n", status); | ||
426 : | } | ||
427 : | |||
428 : | free_all_memory: | ||
429 : | free(out_buffer); | ||
430 : | free(mp4_buffer); | ||
431 : | |||
432 : | edgomez | 1382 | return(0); |
433 : | chl | 376 | } |
434 : | |||
435 : | edgomez | 547 | /***************************************************************************** |
436 : | * Usage function | ||
437 : | ****************************************************************************/ | ||
438 : | chl | 376 | |
439 : | edgomez | 547 | static void usage() |
440 : | chl | 376 | { |
441 : | edgomez | 547 | |
442 : | edgomez | 1382 | fprintf(stderr, "Usage : xvid_decraw [OPTIONS]\n"); |
443 : | edgomez | 547 | fprintf(stderr, "Options :\n"); |
444 : | fprintf(stderr, " -asm : use assembly optimizations (default=disabled)\n"); | ||
445 : | suxen_drol | 1416 | fprintf(stderr, " -debug : debug level (debug=0)\n"); |
446 : | edgomez | 547 | fprintf(stderr, " -i string : input filename (default=stdin)\n"); |
447 : | edgomez | 1382 | fprintf(stderr, " -d : save decoder output\n"); |
448 : | edgomez | 1423 | fprintf(stderr, " -c csp : choose colorspace output (rgb16, rgb24, rgb32, yv12, i420)\n"); |
449 : | fprintf(stderr, " -f format : choose output file format (tga, pnm, pgm)\n"); | ||
450 : | edgomez | 1382 | fprintf(stderr, " -m : save mpeg4 raw stream to individual files\n"); |
451 : | edgomez | 547 | fprintf(stderr, " -help : This help message\n"); |
452 : | fprintf(stderr, " (* means default)\n"); | ||
453 : | |||
454 : | } | ||
455 : | |||
456 : | /***************************************************************************** | ||
457 : | * "helper" functions | ||
458 : | ****************************************************************************/ | ||
459 : | |||
460 : | /* return the current time in milli seconds */ | ||
461 : | static double | ||
462 : | msecond() | ||
463 : | { | ||
464 : | edgomez | 824 | #ifndef WIN32 |
465 : | edgomez | 547 | struct timeval tv; |
466 : | gettimeofday(&tv, 0); | ||
467 : | edgomez | 1382 | return((double)tv.tv_sec*1.0e3 + (double)tv.tv_usec*1.0e-3); |
468 : | edgomez | 547 | #else |
469 : | clock_t clk; | ||
470 : | clk = clock(); | ||
471 : | edgomez | 1382 | return(clk * 1000 / CLOCKS_PER_SEC); |
472 : | edgomez | 547 | #endif |
473 : | } | ||
474 : | |||
475 : | /***************************************************************************** | ||
476 : | * output functions | ||
477 : | ****************************************************************************/ | ||
478 : | |||
479 : | edgomez | 1432 | int write_image(char *prefix, unsigned char *image) |
480 : | edgomez | 547 | { |
481 : | edgomez | 1423 | char filename[1024]; |
482 : | char *ext; | ||
483 : | int ret; | ||
484 : | edgomez | 547 | |
485 : | edgomez | 1423 | if (FORMAT == USE_PNM && BPP == 1) { |
486 : | ext = "pgm"; | ||
487 : | } else if (FORMAT == USE_PNM && BPP == 3) { | ||
488 : | ext = "pnm"; | ||
489 : | } else if (FORMAT == USE_TGA) { | ||
490 : | ext = "tga"; | ||
491 : | } else { | ||
492 : | fprintf(stderr, "Bug: should not reach this path code -- please report to xvid-devel@xvid.org with command line options used"); | ||
493 : | exit(-1); | ||
494 : | } | ||
495 : | edgomez | 547 | |
496 : | edgomez | 1423 | sprintf(filename, "%s.%s", prefix, ext); |
497 : | chl | 376 | |
498 : | edgomez | 1423 | if (FORMAT == USE_PNM) { |
499 : | ret = write_pnm(filename, image); | ||
500 : | } else { | ||
501 : | ret = write_tga(filename, image); | ||
502 : | } | ||
503 : | edgomez | 547 | |
504 : | edgomez | 1423 | return(ret); |
505 : | } | ||
506 : | edgomez | 547 | |
507 : | edgomez | 1432 | int write_tga(char *filename, unsigned char *image) |
508 : | edgomez | 1423 | { |
509 : | FILE * f; | ||
510 : | char hdr[18]; | ||
511 : | edgomez | 547 | |
512 : | edgomez | 1423 | f = fopen(filename, "wb"); |
513 : | if ( f == NULL) { | ||
514 : | return -1; | ||
515 : | } | ||
516 : | edgomez | 547 | |
517 : | edgomez | 1423 | hdr[0] = 0; /* ID length */ |
518 : | hdr[1] = 0; /* Color map type */ | ||
519 : | hdr[2] = (BPP>1)?2:3; /* Uncompressed true color (2) or greymap (3) */ | ||
520 : | hdr[3] = 0; /* Color map specification (not used) */ | ||
521 : | hdr[4] = 0; /* Color map specification (not used) */ | ||
522 : | hdr[5] = 0; /* Color map specification (not used) */ | ||
523 : | hdr[6] = 0; /* Color map specification (not used) */ | ||
524 : | hdr[7] = 0; /* Color map specification (not used) */ | ||
525 : | hdr[8] = 0; /* LSB X origin */ | ||
526 : | hdr[9] = 0; /* MSB X origin */ | ||
527 : | hdr[10] = 0; /* LSB Y origin */ | ||
528 : | hdr[11] = 0; /* MSB Y origin */ | ||
529 : | hdr[12] = (XDIM>>0)&0xff; /* LSB Width */ | ||
530 : | hdr[13] = (XDIM>>8)&0xff; /* MSB Width */ | ||
531 : | if (BPP > 1) { | ||
532 : | hdr[14] = (YDIM>>0)&0xff; /* LSB Height */ | ||
533 : | hdr[15] = (YDIM>>8)&0xff; /* MSB Height */ | ||
534 : | } else { | ||
535 : | hdr[14] = ((YDIM*3)>>1)&0xff; /* LSB Height */ | ||
536 : | hdr[15] = ((YDIM*3)>>9)&0xff; /* MSB Height */ | ||
537 : | } | ||
538 : | hdr[16] = BPP*8; | ||
539 : | hdr[17] = 0x00 | (1<<5) /* Up to down */ | (0<<4); /* Image descriptor */ | ||
540 : | |||
541 : | /* Write header */ | ||
542 : | fwrite(hdr, 1, sizeof(hdr), f); | ||
543 : | edgomez | 547 | |
544 : | edgomez | 1423 | #ifdef ARCH_IS_LITTLE_ENDIAN |
545 : | /* write first plane */ | ||
546 : | fwrite(image, 1, XDIM*YDIM*BPP, f); | ||
547 : | #else | ||
548 : | { | ||
549 : | int i; | ||
550 : | for (i=0; i<width*height*BPP;i+=BPP) { | ||
551 : | if (BPP == 1) { | ||
552 : | fputc(image+i, f); | ||
553 : | } else if (BPP == 2) { | ||
554 : | fputc(image+i+1, f); | ||
555 : | fputc(image+i+0, f); | ||
556 : | } else if (BPP == 3) { | ||
557 : | fputc(image+i+2, f); | ||
558 : | fputc(image+i+1, f); | ||
559 : | fputc(image+i+0, f); | ||
560 : | } else if (BPP == 4) { | ||
561 : | fputc(image+i+3, f); | ||
562 : | fputc(image+i+2, f); | ||
563 : | fputc(image+i+1, f); | ||
564 : | fputc(image+i+0, f); | ||
565 : | } | ||
566 : | edgomez | 547 | } |
567 : | edgomez | 1423 | } |
568 : | #endif | ||
569 : | edgomez | 547 | |
570 : | edgomez | 1423 | /* Write Y and V planes for YUV formats */ |
571 : | if (BPP == 1) { | ||
572 : | int i; | ||
573 : | edgomez | 547 | |
574 : | edgomez | 1423 | /* Write the two chrominance planes */ |
575 : | for (i=0; i<YDIM/2; i++) { | ||
576 : | fwrite(image+XDIM*YDIM + i*XDIM/2, 1, XDIM/2, f); | ||
577 : | fwrite(image+5*XDIM*YDIM/4 + i*XDIM/2, 1, XDIM/2, f); | ||
578 : | } | ||
579 : | chl | 376 | } |
580 : | edgomez | 1423 | |
581 : | |||
582 : | /* Close the file */ | ||
583 : | fclose(f); | ||
584 : | |||
585 : | return(0); | ||
586 : | chl | 376 | } |
587 : | |||
588 : | edgomez | 1423 | int write_pnm(char *filename, unsigned char *image) |
589 : | { | ||
590 : | FILE * f; | ||
591 : | |||
592 : | f = fopen(filename, "wb"); | ||
593 : | if ( f == NULL) { | ||
594 : | return -1; | ||
595 : | } | ||
596 : | |||
597 : | if (BPP == 1) { | ||
598 : | int i; | ||
599 : | fprintf(f, "P5\n#xvid\n%i %i\n255\n", XDIM, YDIM*3/2); | ||
600 : | |||
601 : | fwrite(image, 1, XDIM*YDIM, f); | ||
602 : | |||
603 : | for (i=0; i<YDIM/2;i++) { | ||
604 : | fwrite(image+XDIM*YDIM + i*XDIM/2, 1, XDIM/2, f); | ||
605 : | fwrite(image+5*XDIM*YDIM/4 + i*XDIM/2, 1, XDIM/2, f); | ||
606 : | } | ||
607 : | } else if (BPP == 3) { | ||
608 : | int i; | ||
609 : | fprintf(f, "P6\n#xvid\n%i %i\n255\n", XDIM, YDIM); | ||
610 : | for (i=0; i<XDIM*YDIM*3; i+=3) { | ||
611 : | #ifdef ARCH_IS_LITTLE_ENDIAN | ||
612 : | fputc(image[i+2], f); | ||
613 : | fputc(image[i+1], f); | ||
614 : | fputc(image[i+0], f); | ||
615 : | #else | ||
616 : | fputc(image[i+0], f); | ||
617 : | fputc(image[i+1], f); | ||
618 : | fputc(image[i+2], f); | ||
619 : | #endif | ||
620 : | } | ||
621 : | } | ||
622 : | |||
623 : | fclose(f); | ||
624 : | |||
625 : | return 0; | ||
626 : | } | ||
627 : | edgomez | 547 | /***************************************************************************** |
628 : | * Routines for decoding: init decoder, use, and stop decoder | ||
629 : | ****************************************************************************/ | ||
630 : | chl | 376 | |
631 : | edgomez | 547 | /* init decoder before first run */ |
632 : | static int | ||
633 : | suxen_drol | 1416 | dec_init(int use_assembler, int debug_level) |
634 : | chl | 376 | { |
635 : | edgomez | 1382 | int ret; |
636 : | chl | 376 | |
637 : | edgomez | 1382 | xvid_gbl_init_t xvid_gbl_init; |
638 : | xvid_dec_create_t xvid_dec_create; | ||
639 : | chl | 376 | |
640 : | edgomez | 1382 | /*------------------------------------------------------------------------ |
641 : | * XviD core initialization | ||
642 : | *----------------------------------------------------------------------*/ | ||
643 : | |||
644 : | /* Version */ | ||
645 : | xvid_gbl_init.version = XVID_VERSION; | ||
646 : | |||
647 : | /* Assembly setting */ | ||
648 : | if(use_assembler) | ||
649 : | suxen_drol | 860 | #ifdef ARCH_IS_IA64 |
650 : | edgomez | 1382 | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_IA64; |
651 : | chl | 376 | #else |
652 : | edgomez | 1382 | xvid_gbl_init.cpu_flags = 0; |
653 : | chl | 376 | #endif |
654 : | edgomez | 1382 | else |
655 : | xvid_gbl_init.cpu_flags = XVID_CPU_FORCE; | ||
656 : | chl | 376 | |
657 : | suxen_drol | 1416 | xvid_gbl_init.debug = debug_level; |
658 : | |||
659 : | edgomez | 1382 | xvid_global(NULL, 0, &xvid_gbl_init, NULL); |
660 : | chl | 376 | |
661 : | edgomez | 1382 | /*------------------------------------------------------------------------ |
662 : | * XviD encoder initialization | ||
663 : | *----------------------------------------------------------------------*/ | ||
664 : | edgomez | 851 | |
665 : | edgomez | 1382 | /* Version */ |
666 : | xvid_dec_create.version = XVID_VERSION; | ||
667 : | chl | 376 | |
668 : | edgomez | 1382 | /* |
669 : | * Image dimensions -- set to 0, xvidcore will resize when ever it is | ||
670 : | * needed | ||
671 : | */ | ||
672 : | xvid_dec_create.width = 0; | ||
673 : | xvid_dec_create.height = 0; | ||
674 : | |||
675 : | ret = xvid_decore(NULL, XVID_DEC_CREATE, &xvid_dec_create, NULL); | ||
676 : | |||
677 : | dec_handle = xvid_dec_create.handle; | ||
678 : | |||
679 : | return(ret); | ||
680 : | chl | 376 | } |
681 : | |||
682 : | edgomez | 547 | /* decode one frame */ |
683 : | static int | ||
684 : | dec_main(unsigned char *istream, | ||
685 : | edgomez | 851 | unsigned char *ostream, |
686 : | int istream_size, | ||
687 : | edgomez | 1382 | xvid_dec_stats_t *xvid_dec_stats) |
688 : | edgomez | 547 | { |
689 : | chl | 376 | |
690 : | edgomez | 1382 | int ret; |
691 : | chl | 376 | |
692 : | edgomez | 1382 | xvid_dec_frame_t xvid_dec_frame; |
693 : | chl | 376 | |
694 : | edgomez | 1382 | /* Set version */ |
695 : | xvid_dec_frame.version = XVID_VERSION; | ||
696 : | xvid_dec_stats->version = XVID_VERSION; | ||
697 : | chl | 376 | |
698 : | edgomez | 1382 | /* No general flags to set */ |
699 : | xvid_dec_frame.general = 0; | ||
700 : | chl | 376 | |
701 : | edgomez | 1382 | /* Input stream */ |
702 : | xvid_dec_frame.bitstream = istream; | ||
703 : | xvid_dec_frame.length = istream_size; | ||
704 : | edgomez | 851 | |
705 : | edgomez | 1382 | /* Output frame structure */ |
706 : | xvid_dec_frame.output.plane[0] = ostream; | ||
707 : | edgomez | 1423 | xvid_dec_frame.output.stride[0] = XDIM*BPP; |
708 : | xvid_dec_frame.output.csp = CSP; | ||
709 : | edgomez | 1382 | |
710 : | ret = xvid_decore(dec_handle, XVID_DEC_DECODE, &xvid_dec_frame, xvid_dec_stats); | ||
711 : | |||
712 : | return(ret); | ||
713 : | chl | 376 | } |
714 : | |||
715 : | edgomez | 547 | /* close decoder to release resources */ |
716 : | static int | ||
717 : | dec_stop() | ||
718 : | chl | 376 | { |
719 : | edgomez | 1382 | int ret; |
720 : | edgomez | 547 | |
721 : | edgomez | 1382 | ret = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL); |
722 : | chl | 376 | |
723 : | edgomez | 1382 | return(ret); |
724 : | chl | 376 | } |
No admin address has been configured | ViewVC Help |
Powered by ViewVC 1.0.4 |