1 /* -*- mode: c; tab-width: 4; -*- ---------------------------[for (x)emacs]--
2
3 $Id: gif2swf.c,v 1.7 2008/02/08 11:43:12 kramm Exp $
4 GIF to SWF converter tool
5
6 Part of the swftools package.
7
8 Copyright (c) 2005 Daichi Shinozaki <dseg@shield.jp>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
23
24 This file is derived from png2swf.c */
25
26 #include <stdio.h>
27 #include <fcntl.h>
28 #include <gif_lib.h>
29 #include "../lib/rfxswf.h"
30 #include "../lib/args.h"
31
32 #define MAX_INPUT_FILES 1024
33 #define VERBOSE(x) (global.verbose>=x)
34 #define AS_FIRSTFRAME "if(!n) n=0;"
35 #define AS_LASTFRAME "if(n<%d){n=n+1;gotoAndPlay(1);}else stop();"
36
37 static struct {
38 float framerate;
39 int max_image_width;
40 int max_image_height;
41 int force_width;
42 int force_height;
43 int nfiles;
44 int verbose;
45 int do_cgi;
46 int version;
47 char *outfile;
48 int imagecount;
49 int loopcount;
50 } global;
51
52 struct {
53 char *filename;
54 } image[MAX_INPUT_FILES];
55
56 struct gif_header {
57 int width;
58 int height;
59 };
60
61 enum disposal_method {
62 NONE,
63 DO_NOT_DISPOSE,
64 RESTORE_TO_BGCOLOR,
65 RESTORE_TO_PREVIOUS
66 };
67
68 static void
69 #if GIFLIB_MAJOR >= 5
localPrintGifError(int ErrorCode)70 localPrintGifError(int ErrorCode)
71 #else
72 localPrintGifError(void)
73 #endif
74 {
75 #if GIFLIB_MAJOR >= 5
76 char *Err = GifErrorString(ErrorCode);
77 #else
78 char *Err = GifErrorString();
79 int ErrorCode = GifError();
80 #endif
81
82 if (Err != NULL)
83 fprintf(stderr, "\nGIF-LIB error: %s.\n", Err);
84 else
85 fprintf(stderr, "\nGIF-LIB undefined error %d.\n", ErrorCode);
86 }
87
SetFrameAction(TAG ** t,const char * src,int ver)88 void SetFrameAction(TAG ** t, const char *src, int ver)
89 {
90 ActionTAG *as;
91
92 as = swf_ActionCompile(src, ver);
93 if (!as)
94 fprintf(stderr, "Couldn't compile ActionScript\n");
95 else {
96 *t = swf_InsertTag(*t, ST_DOACTION);
97 swf_ActionSet(*t, as);
98 swf_ActionFree(as);
99 }
100 }
101
getGifDisposalMethod(GifFileType * gft,int framenum)102 int getGifDisposalMethod(GifFileType * gft, int framenum)
103 {
104 int i;
105 ExtensionBlock *ext = gft->SavedImages[framenum].ExtensionBlocks;
106
107 for (i = 0; i < gft->SavedImages[framenum].ExtensionBlockCount; i++, ext++)
108 if (ext->Function == GRAPHICS_EXT_FUNC_CODE)
109 return ((ext->Bytes[0] & 0x1C) >> 2);
110
111 return -1;
112 }
113
getGifLoopCount(GifFileType * gft)114 int getGifLoopCount(GifFileType * gft)
115 {
116 int i, loop = -1;
117 ExtensionBlock *ext = gft->SavedImages[0].ExtensionBlocks;
118
119 for (i = 0; i < gft->SavedImages[0].ExtensionBlockCount; i++, ext++)
120 if (ext->Function == APPLICATION_EXT_FUNC_CODE) {
121 // info: http://semmix.pl/color/exgraf/eeg24.htm
122 if (ext->ByteCount == 11 &&
123 (strncmp(&ext->Bytes[0], "NETSCAPE2.0", 11) == 0 ||
124 strncmp(&ext->Bytes[0], "ANIMEXTS1.0", 11) == 0)) {
125 // check for the subblock
126 ext++;
127 if (ext->ByteCount != 3)
128 ext--;
129 else {
130 loop = GET16(&ext->Bytes[1]);
131 break;
132 }
133 }
134 }
135
136 return loop;
137 }
138
getGifDelayTime(GifFileType * gft,int framenum)139 U16 getGifDelayTime(GifFileType * gft, int framenum)
140 {
141 int i;
142 ExtensionBlock *ext = gft->SavedImages[framenum].ExtensionBlocks;
143
144 for (i = 0; i < gft->SavedImages[framenum].ExtensionBlockCount; i++, ext++)
145 if (ext->Function == GRAPHICS_EXT_FUNC_CODE)
146 return GET16(&ext->Bytes[1]);
147
148 return 0;
149 }
150
getTransparentColor(GifFileType * gft,int framenum)151 int getTransparentColor(GifFileType * gft, int framenum)
152 {
153 int i;
154 ExtensionBlock *ext = gft->SavedImages[framenum].ExtensionBlocks;
155
156 // Get transparency color from graphic extension block
157 for (i = 0; i < gft->SavedImages[framenum].ExtensionBlockCount; i++, ext++)
158 if ((ext->Function == GRAPHICS_EXT_FUNC_CODE) && (ext->Bytes[0] & 1)) {
159 // there is a transparent color
160 return ext->Bytes[3] == 0 ? 0 : // exception
161 (U8) ext->Bytes[3]; // transparency color
162 }
163
164 return -1;
165 }
166
MovieStart(SWF * swf,float framerate,int dx,int dy)167 TAG *MovieStart(SWF * swf, float framerate, int dx, int dy)
168 {
169 TAG *t;
170 RGBA rgb;
171
172 memset(swf, 0x00, sizeof(SWF));
173
174 swf->fileVersion = global.version;
175 swf->frameRate = (int) (256.0 * framerate);
176 swf->movieSize.xmax = dx * 20;
177 swf->movieSize.ymax = dy * 20;
178
179 t = swf->firstTag = swf_InsertTag(NULL, ST_SETBACKGROUNDCOLOR);
180
181 rgb.r = rgb.g = rgb.b = rgb.a = 0x00;
182
183 //rgb.g = 0xff; //<--- handy for testing alpha conversion
184 swf_SetRGB(t, &rgb);
185
186 return t;
187 }
188
MovieFinish(SWF * swf,TAG * t,char * sname)189 int MovieFinish(SWF * swf, TAG * t, char *sname)
190 {
191 int f, so = fileno(stdout);
192 t = swf_InsertTag(t, ST_END);
193
194 if ((!isatty(so)) && (!sname))
195 f = so;
196 else {
197 if (!sname)
198 sname = "output.swf";
199 f = open(sname, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
200 }
201
202 if (global.do_cgi) {
203 if FAILED
204 (swf_WriteCGI(swf)) fprintf(stderr, "WriteCGI() failed.\n");
205 } else {
206 if (swf_WriteSWF(f, swf) < 0)
207 fprintf(stderr, "Unable to write output file: %s\n", sname);
208 if (f != so)
209 close(f);
210 }
211
212 swf_FreeTags(swf);
213 return 0;
214 }
215
MovieAddFrame(SWF * swf,TAG * t,char * sname,int id,int imgidx)216 TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id, int imgidx)
217 {
218 SHAPE *s;
219 SRECT r;
220 MATRIX m;
221 int fs;
222
223 U8 *imagedata, *from, *to;
224 GifImageDesc *img;
225 RGBA *pal;
226
227 struct gif_header header;
228
229 int i, j, numcolors, alphapalette;
230 U8 bgcolor;
231 int bpp; // byte per pixel
232 int swf_width, padlen;
233
234 ColorMapObject *colormap;
235 GifColorType c;
236 int interlacedOffset[] = { 0, 4, 2, 1 }; // The way Interlaced image should
237 int interlacedJumps[] = { 8, 8, 4, 2 }; // be read - offsets and jumps...
238 U16 delay, depth;
239 int disposal;
240 char *as_lastframe;
241
242 GifFileType *gft;
243 FILE *fi;
244
245 if ((fi = fopen(sname, "rb")) == NULL) {
246 if (VERBOSE(1))
247 fprintf(stderr, "Read access failed: %s\n", sname);
248 return t;
249 }
250 fclose(fi);
251
252 #if GIFLIB_MAJOR >= 5
253 if ((gft = DGifOpenFileName(sname, NULL)) == NULL) {
254 #else
255 if ((gft = DGifOpenFileName(sname)) == NULL) {
256 #endif
257 fprintf(stderr, "%s is not a GIF file!\n", sname);
258 return t;
259 }
260
261 if (DGifSlurp(gft) != GIF_OK) {
262 #if GIFLIB_MAJOR >= 5
263 localPrintGifError(gft->Error);
264 #else
265 localPrintGifError();
266 #endif
267 return t;
268 }
269
270 header.width = gft->SWidth;
271 header.height = gft->SHeight;
272
273 pal = (RGBA *) malloc(256 * sizeof(RGBA));
274 memset(pal, 0, 256 * sizeof(RGBA));
275
276 img = &gft->SavedImages[imgidx].ImageDesc;
277
278 // Local colormap has precedence over Global colormap
279 colormap = img->ColorMap ? img->ColorMap : gft->SColorMap;
280 numcolors = colormap->ColorCount;
281 alphapalette = getTransparentColor(gft, imgidx);
282 if (VERBOSE(3))
283 fprintf(stderr, "transparent palette index => %d\n", alphapalette);
284 bpp = (alphapalette >= 0 ? 4 : 3);
285
286 // bgcolor is the background color to fill the bitmap
287 if (gft->SColorMap) // There is a GlobalColorMap
288 bgcolor = (U8) gft->SBackGroundColor; // The SBGColor is meaningful
289 else if (alphapalette >= 0) // There is a transparency color
290 bgcolor = alphapalette; // set the bgcolor to tranparent
291 else
292 bgcolor = 0;
293 // Don't know what to do here.
294 // If this doesn't work, we could
295 // create a new color and set the
296 // alpha-channel to transparent
297 // (unless we are using all the 256
298 // colors, in which case either we
299 // give up, or move to 16-bits palette
300 if (VERBOSE(3))
301 fprintf(stderr, "BG palette index => %u\n", bgcolor);
302
303 for (i = 0; i < numcolors; i++) {
304 c = colormap->Colors[i];
305 if (i == bgcolor || i == alphapalette)
306 pal[i].r = pal[i].g = pal[i].b = pal[i].a = 0; // Fully transparent
307 else {
308 pal[i].r = c.Red;
309 pal[i].g = c.Green;
310 pal[i].b = c.Blue;
311 pal[i].a = 255; // Fully opaque
312 }
313 }
314
315 t = swf_InsertTag(t, bpp == 4 ? ST_DEFINEBITSLOSSLESS2 : ST_DEFINEBITSLOSSLESS);
316 swf_SetU16(t, id); // id
317
318 // Ah! The Flash specs says scanlines must be DWORD ALIGNED!
319 // (but image width is the correct number of pixels)
320 swf_width = BYTES_PER_SCANLINE(header.width);
321
322 if ((imagedata = (U8 *) malloc(swf_width * header.height)) == NULL) {
323 fprintf(stderr, "Failed to allocate memory required, aborted.");
324 exit(2);
325 }
326
327 to = imagedata;
328 from = (U8 *) gft->SavedImages[imgidx].RasterBits;
329
330 if (swf_width == header.width) {
331 // we are all nicely aligned and don't need to move the bitmap around.
332 // Just copy the bits into the image buffer.
333 if (!gft->Image.Interlace)
334 if (header.width == img->Width && header.height == img->Height)
335 memcpy(to, from, header.width * header.height);
336 else { //small screen
337 for (i = 0; i < header.height; i++, to += header.width) {
338 memset(to, bgcolor, header.width);
339 if (i >= img->Top && i < img->Top + img->Height) {
340 memcpy(to + img->Left, from, img->Width);
341 from += img->Width;
342 }
343 }
344 }
345
346 else // Need to perform 4 passes on the interlaced images
347 for (i = 0; i < 4; i++)
348 for (j = interlacedOffset[i]; j < header.height;
349 j += interlacedJumps[i], from += header.width)
350 memcpy(to + header.width * j, from, header.width);
351 } else {
352 padlen = swf_width - header.width;
353
354 // here we need to pad the scanline
355 if (!gft->Image.Interlace) {
356 if (header.width == img->Width && header.height == img->Height) {
357 for (i = 0; i < header.height; i++, from += header.width, to += swf_width) {
358 memcpy(to, from, header.width);
359 memset(to + header.width, bgcolor, padlen);
360 }
361 } else { //small screen
362 for (i = 0; i < header.height; i++, to += swf_width) {
363 memset(to, bgcolor, swf_width);
364 if (i >= img->Top && i < img->Top + img->Height) {
365 memcpy(to + img->Left, from, img->Width);
366 from += img->Width;
367 }
368 }
369 }
370 } else { // Need to perform 4 passes on the interlaced images
371 for (i = 0; i < 4; i++)
372 for (j = interlacedOffset[i]; j < header.height;
373 j += interlacedJumps[i], from += header.width) {
374 memcpy(to + swf_width * j, from, header.width);
375 memset(to + swf_width * j, bgcolor, padlen);
376 }
377 }
378 }
379 swf_SetLosslessBitsIndexed(t, header.width, header.height, imagedata, pal, 256);
380
381 t = swf_InsertTag(t, ST_DEFINESHAPE);
382
383 swf_ShapeNew(&s);
384 swf_GetMatrix(NULL, &m);
385 m.sx = 20 * 0x10000;
386 m.sy = 20 * 0x10000;
387 fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 0);
388
389 swf_SetU16(t, id + 1); // id
390
391 r.xmin = r.ymin = 0;
392 r.xmax = header.width * 20;
393 r.ymax = header.height * 20;
394 swf_SetRect(t, &r);
395
396 swf_SetShapeHeader(t, s);
397
398 swf_ShapeSetAll(t, s, 0, 0, 0, fs, 0);
399 swf_ShapeSetLine(t, s, r.xmax, 0);
400 swf_ShapeSetLine(t, s, 0, r.ymax);
401 swf_ShapeSetLine(t, s, -r.xmax, 0);
402 swf_ShapeSetLine(t, s, 0, -r.ymax);
403
404 swf_ShapeSetEnd(t);
405
406 depth = imgidx + 1;
407 if ((imgidx > 0) && // REMOVEOBJECT2 not needed at frame 1(imgidx==0)
408 (global.imagecount > 1)) {
409 // check last frame's disposal method
410 if ((disposal = getGifDisposalMethod(gft, imgidx - 1)) >= 0) {
411 switch (disposal) {
412 case NONE:
413 // [Replace one full-size, non-transparent frame with another]
414 t = swf_InsertTag(t, ST_REMOVEOBJECT2);
415 swf_SetU16(t, depth - 1);
416 if (VERBOSE(3))
417 fprintf(stdout, " [none]\n");
418 break;
419 case DO_NOT_DISPOSE:
420 // [Any pixels not covered up by the next frame continue to display]
421 if (VERBOSE(3))
422 fprintf(stdout, " [don't dispose]\n");
423 break;
424 case RESTORE_TO_BGCOLOR:
425 // [The background color or background tile -rather than a previous frame-
426 // shows through transparent pixels]
427 t = swf_InsertTag(t, ST_REMOVEOBJECT2);
428 swf_SetU16(t, depth - 2);
429 if (VERBOSE(3))
430 fprintf(stdout, " [restore to bg color]\n");
431 break;
432 case RESTORE_TO_PREVIOUS:
433 // [Restores to the state of a previous, undisposed frame]
434 // ** NOT IMPLEMENTED YET (same as "restore to bgcolor") **
435 t = swf_InsertTag(t, ST_REMOVEOBJECT2);
436 swf_SetU16(t, depth - 1);
437 if (VERBOSE(3))
438 fprintf(stdout, " [restore to previous]\n");
439 break;
440 default:
441 break;
442 }
443 }
444 }
445
446 swf_SetU16(t, depth);
447 t = swf_InsertTag(t, ST_PLACEOBJECT2);
448
449 swf_GetMatrix(NULL, &m);
450 m.tx = (swf->movieSize.xmax - (int) header.width * 20) / 2;
451 m.ty = (swf->movieSize.ymax - (int) header.height * 20) / 2;
452 swf_ObjectPlace(t, id + 1, depth, &m, NULL, NULL);
453
454 if ((global.imagecount > 1) && (global.loopcount > 0)) { // 0 means infinite loop
455 if (imgidx == 0)
456 SetFrameAction(&t, AS_FIRSTFRAME, global.version);
457 }
458
459 t = swf_InsertTag(t, ST_SHOWFRAME);
460
461 if (global.imagecount > 1) { // multi-frame GIF?
462 int framecnt;
463 delay = getGifDelayTime(gft, imgidx); // delay in 1/100 sec
464 framecnt = (int) (global.framerate * (delay / 100.0));
465 if (framecnt > 1) {
466 if (VERBOSE(2))
467 fprintf(stderr, "at frame %d: pad %d frames(%.3f sec)\n",
468 imgidx + 1, framecnt, delay / 100.0);
469
470 framecnt -= 1; // already inserted a frame
471 while (framecnt--)
472 t = swf_InsertTag(t, ST_SHOWFRAME);
473 }
474 if ((imgidx == global.imagecount - 1) &&global.loopcount > 0) { // last frame
475 as_lastframe = malloc(strlen(AS_LASTFRAME) + 5); // 0-99999
476 sprintf(as_lastframe, AS_LASTFRAME, global.loopcount);
477 SetFrameAction(&t, as_lastframe, global.version);
478 if (as_lastframe)
479 free(as_lastframe);
480 }
481 }
482
483 free(pal);
484 free(imagedata);
485 #if GIFLIB_MAJOR == 5 && GIFLIB_MINOR >= 1 || GIFLIB_MAJOR > 5
486 DGifCloseFile(gft, NULL);
487 #else
488 DGifCloseFile(gft);
489 #endif
490
491 return t;
492 }
493
494 int CheckInputFile(char *fname, char **realname)
495 {
496 FILE *fi;
497 char *s = malloc(strlen(fname) + 5);
498 GifFileType *gft;
499
500 if (!s)
501 exit(2);
502 (*realname) = s;
503 strcpy(s, fname);
504
505 // Check whether file exists (with typical extensions)
506
507 if ((fi = fopen(s, "rb")) == NULL) {
508 sprintf(s, "%s.gif", fname);
509 if ((fi = fopen(s, "rb")) == NULL) {
510 sprintf(s, "%s.GIF", fname);
511 if ((fi = fopen(s, "rb")) == NULL) {
512 sprintf(s, "%s.Gif", fname);
513 if ((fi = fopen(s, "rb")) == NULL) {
514 fprintf(stderr, "Couldn't open %s!\n", fname);
515 return -1;
516 }
517 }
518 }
519 }
520 fclose(fi);
521
522 #if GIFLIB_MAJOR >= 5
523 if ((gft = DGifOpenFileName(s, NULL)) == NULL) {
524 #else
525 if ((gft = DGifOpenFileName(s)) == NULL) {
526 #endif
527 fprintf(stderr, "%s is not a GIF file!\n", fname);
528 return -1;
529 }
530
531 if (global.max_image_width < gft->SWidth)
532 global.max_image_width = gft->SWidth;
533 if (global.max_image_height < gft->SHeight)
534 global.max_image_height = gft->SHeight;
535
536 if (DGifSlurp(gft) != GIF_OK) {
537 #if GIFLIB_MAJOR >= 5
538 localPrintGifError(gft->Error);
539 #else
540 localPrintGifError();
541 #endif
542 return -1;
543 }
544 // After DGifSlurp() call, gft->ImageCount become available
545 if ((global.imagecount = gft->ImageCount) >1) {
546 if (global.loopcount < 0) {
547 global.loopcount = getGifLoopCount(gft);
548 if (VERBOSE(3))
549 fprintf(stderr, "Loops => %d\n", global.loopcount);
550 }
551 }
552 if (VERBOSE(2)) {
553 U8 i;
554 fprintf(stderr, "%d x %d, %d images total\n", gft->SWidth, gft->SHeight, gft->ImageCount);
555
556 for (i = 0; i < gft->ImageCount; i++)
557 fprintf(stderr, "frame: %u, delay: %.3f sec\n", i + 1, getGifDelayTime(gft, i) / 100.0);
558 }
559
560 #if GIFLIB_MAJOR == 5 && GIFLIB_MINOR >= 1 || GIFLIB_MAJOR > 5
561 DGifCloseFile(gft, NULL);
562 #else
563 DGifCloseFile(gft);
564 #endif
565
566 return 0;
567 }
568
569 int args_callback_option(char *arg, char *val)
570 {
571 int res = 0;
572 if (arg[1])
573 res = -1;
574 else
575 switch (arg[0]) {
576 case 'l':
577 if (val)
578 global.loopcount = atoi(val);
579 res = 1;
580 break;
581
582 case 'r':
583 if (val)
584 global.framerate = atof(val);
585 if ((global.framerate < 1.0 / 256) ||(global.framerate >= 256.0)) {
586 if (VERBOSE(1))
587 fprintf(stderr,
588 "Error: You must specify a valid framerate between 1/256 and 255.\n");
589 exit(1);
590 }
591 res = 1;
592 break;
593
594 case 'o':
595 if (val)
596 global.outfile = val;
597 res = 1;
598 break;
599
600 case 'z':
601 global.version = 6;
602 res = 0;
603 break;
604
605 case 'C':
606 global.do_cgi = 1;
607 break;
608
609 case 'v':
610 if (val)
611 global.verbose = atoi(val);
612 res = 1;
613 break;
614
615 case 'X':
616 if (val)
617 global.force_width = atoi(val);
618 res = 1;
619 break;
620
621 case 'Y':
622 if (val)
623 global.force_height = atoi(val);
624 res = 1;
625 break;
626
627 case 'V':
628 printf("gif2swf - part of %s %s\n", PACKAGE, VERSION);
629 exit(0);
630
631 default:
632 res = -1;
633 break;
634 }
635
636 if (res < 0) {
637 if (VERBOSE(1))
638 fprintf(stderr, "Unknown option: -%s\n", arg);
639 exit(1);
640 return 0;
641 }
642 return res;
643 }
644
645 static struct options_t options[] = {
646 {"r", "rate"},
647 {"o", "output"},
648 {"z", "zlib"},
649 {"l", "loop"},
650 {"X", "pixel"},
651 {"Y", "pixel"},
652 {"v", "verbose"},
653 {"C", "cgi"},
654 {"V", "version"},
655 {0,0}
656 };
657
658 int args_callback_longoption(char *name, char *val)
659 {
660 return args_long2shortoption(options, name, val);
661 }
662
663 int args_callback_command(char *arg, char *next) // actually used as filename
664 {
665 char *s;
666 if (CheckInputFile(arg, &s) < 0) {
667 if (VERBOSE(1))
668 fprintf(stderr, "Error opening input file: %s\n", arg);
669 free(s);
670
671 } else {
672 image[global.nfiles].filename = s;
673 global.nfiles++;
674 if (global.nfiles >= MAX_INPUT_FILES) {
675 if (VERBOSE(1))
676 fprintf(stderr, "Error: Too many input files.\n");
677 exit(1);
678 }
679 }
680
681 return 0;
682 }
683
684 void args_callback_usage(char *name)
685 {
686 printf("\n");
687 printf("Usage: %s [-X width] [-Y height] [-o file.swf] [-r rate] file1.gif [file2.gif ...]\n", name);
688 printf("\n");
689 printf("-r , --rate <framerate> Set movie framerate (frames per second)\n");
690 printf("-o , --output <filename> Set name for SWF output file.\n");
691 printf("-z , --zlib <zlib> Enable Flash 6 (MX) Zlib Compression\n");
692 printf("-l , --loop <loop count> Set loop count. (default: 0 [=infinite loop])\n");
693 printf("-X , --pixel <width> Force movie width to <width> (default: autodetect)\n");
694 printf("-Y , --pixel <height> Force movie height to <height> (default: autodetect)\n");
695 printf("-v , --verbose <level> Set verbose level (0=quiet, 1=default, 2=debug)\n");
696 printf("-C , --cgi For use as CGI- prepend http header, write to stdout\n");
697 printf("-V , --version Print version information and exit\n");
698 printf("\n");
699 }
700
701 int main(int argc, char **argv)
702 {
703 SWF swf;
704 TAG *t;
705
706 memset(&global, 0x00, sizeof(global));
707
708 global.framerate = 1.0;
709 global.verbose = 1;
710 global.version = 5;
711 global.loopcount = -1;
712
713 processargs(argc, argv);
714
715 if (global.nfiles <= 0) {
716 fprintf(stderr, "No gif files found in arguments\n");
717 return 1;
718 }
719
720 if (VERBOSE(2))
721 fprintf(stderr, "Processing %i file(s)...\n", global.nfiles);
722
723 if (global.imagecount > 1) // multi-frame GIF?
724 if (global.framerate == 1.0) // user not specified '-r' option?
725 global.framerate = 10.0;
726
727 t = MovieStart(&swf, global.framerate,
728 global.force_width ? global.force_width : global.max_image_width,
729 global.force_height ? global.force_height : global.max_image_height);
730 {
731 int i, j;
732 for (i = 0; i < global.nfiles; i++) {
733 if (VERBOSE(3))
734 fprintf(stderr, "[%03i] %s\n", i, image[i].filename);
735 t = MovieAddFrame(&swf, t, image[i].filename, (i * 2) + 1, 0);
736 for (j = 2; j <= global.imagecount; j++)
737 t = MovieAddFrame(&swf, t, image[i].filename, (j * 2) - 1, j - 1);
738 free(image[i].filename);
739 }
740 }
741
742 MovieFinish(&swf, t, global.outfile);
743
744 return 0;
745 }
746