1 /* png2swf.c
2
3 PNG to SWF converter tool
4
5 Part of the swftools package.
6
7 Copyright (c) 2002,2003 Matthias Kramm <kramm@quiss.org>
8
9 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
14 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
19 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 #include <stdio.h>
24 #include <math.h>
25 #include <fcntl.h>
26 #include <zlib.h>
27 #include "../lib/rfxswf.h"
28 #include "../lib/args.h"
29 #include "../lib/log.h"
30 #include "../lib/png.h"
31
32 #define MAX_INPUT_FILES 1024
33 #define VERBOSE(x) (global.verbose>=x)
34
35 static struct {
36 float framerate;
37 int max_image_width;
38 int max_image_height;
39 int force_width;
40 int force_height;
41 int nfiles;
42 int verbose;
43 int do_cgi;
44 int version;
45 char *outfile;
46 int mkjpeg;
47 float scale;
48 } global;
49
50 static struct {
51 char *filename;
52 } image[MAX_INPUT_FILES];
53
54 static int custom_move=0;
55 static int move_x=0;
56 static int move_y=0;
57 static int clip_x1=0,clip_y1=0,clip_x2=0,clip_y2=0;
58 static int custom_clip = 0;
59
MovieStart(SWF * swf,float framerate,int dx,int dy)60 TAG *MovieStart(SWF * swf, float framerate, int dx, int dy)
61 {
62 TAG *t;
63 RGBA rgb;
64
65 memset(swf, 0x00, sizeof(SWF));
66
67 swf->fileVersion = global.version;
68 swf->frameRate = (int)(256.0 * framerate);
69 if(custom_clip) {
70 swf->movieSize.xmin = clip_x1 * 20;
71 swf->movieSize.ymin = clip_y1 * 20;
72 swf->movieSize.xmax = clip_x2 * 20;
73 swf->movieSize.ymax = clip_y2 * 20;
74 } else {
75 swf->movieSize.xmax = dx * 20;
76 swf->movieSize.ymax = dy * 20;
77 }
78
79 t = swf->firstTag = swf_InsertTag(NULL, ST_SETBACKGROUNDCOLOR);
80
81 rgb.r = rgb.g = rgb.b = rgb.a = 0x00;
82 //rgb.g = 0xff; //<--- handy for testing alpha conversion
83 swf_SetRGB(t, &rgb);
84
85 return t;
86 }
87
MovieFinish(SWF * swf,TAG * t,char * sname)88 int MovieFinish(SWF * swf, TAG * t, char *sname)
89 {
90 int f, so = fileno(stdout);
91 t = swf_InsertTag(t, ST_END);
92
93 if ((!isatty(so)) && (!sname))
94 f = so;
95 else {
96 if (!sname)
97 sname = "output.swf";
98 f = open(sname,O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0644);
99 }
100
101 if(global.do_cgi) {
102 if FAILED(swf_WriteCGI(swf)) fprintf(stderr,"WriteCGI() failed.\n");
103 } else {
104 if (swf_WriteSWF(f, swf)<0)
105 fprintf(stderr, "Unable to write output file: %s\n", sname);
106 if (f != so)
107 close(f);
108 }
109
110 swf_FreeTags(swf);
111 return 0;
112 }
113
png_read_chunk(char (* head)[4],int * destlen,U8 ** destdata,FILE * fi)114 int png_read_chunk(char (*head)[4], int*destlen, U8**destdata, FILE*fi)
115 {
116 unsigned int len;
117 if(destlen) *destlen=0;
118 if(destdata) *destdata=0;
119 if(!fread(&len, 4, 1, fi))
120 return 0;
121 if(!fread(head, 4, 1, fi))
122 return 0;
123 len = BE_32_TO_NATIVE(len);
124 if(destlen) *destlen = len;
125 if(destdata) {
126 if(len)
127 *destdata = malloc(len);
128 else
129 *destdata = 0;
130 if(!fread(*destdata, len, 1, fi)) {
131 *destdata = 0;
132 if(destlen) *destlen=0;
133 return 0;
134 }
135 fseek(fi, 4, SEEK_CUR);
136
137 } else {
138 fseek(fi, len+4, SEEK_CUR);
139 }
140 return 1;
141 }
142
png_get_dword(FILE * fi)143 unsigned int png_get_dword(FILE*fi)
144 {
145 unsigned int a;
146 fread(&a,4,1,fi);
147 return BE_32_TO_NATIVE(a);
148 }
149
150 struct png_header
151 {
152 int width;
153 int height;
154 int bpp;
155 int mode;
156 };
157
png_read_header(FILE * fi,struct png_header * header)158 int png_read_header(FILE*fi, struct png_header*header)
159 {
160 char id[4];
161 int len;
162 int ok=0;
163 U8 head[8] = {137,80,78,71,13,10,26,10};
164 U8 head2[8];
165 U8*data;
166 fread(head2,8,1,fi);
167 if(strncmp((char*)head,(char*)head2,4))
168 return 0;
169
170 while(png_read_chunk(&id, &len, &data, fi))
171 {
172 if(VERBOSE(2))
173 printf("%c%c%c%c %d\n", id[0],id[1],id[2],id[3],len);
174 if(!strncasecmp(id, "IHDR", 4)) {
175 char a,b,c,f,i;
176 if(len < 8) exit(1);
177 header->width = BE_32_TO_NATIVE(*(U32*)&data[0]);
178 header->height = BE_32_TO_NATIVE(*(U32*)&data[4]);
179 a = data[8]; // should be 8
180 b = data[9]; // should be 3(indexed), 2(rgb), 0(grayscale) or 6(truecolor+alpha)
181
182 c = data[10]; // compression mode (0)
183 f = data[11]; // filter mode (0)
184 i = data[12]; // interlace mode (0)
185
186 if(VERBOSE(2)) printf("image mode:%d\n", b);
187 if(VERBOSE(2)) printf("bpp: %d\n", a);
188 if(VERBOSE(2)) printf("compression: %d\n", c);
189 if(VERBOSE(2)) printf("filter: %d\n", f);
190 if(VERBOSE(2)) printf("interlace: %d\n", i);
191
192 if(b!=0 && b!=2 && b!=3 && b!=6) {
193 fprintf(stderr, "Image mode %d not supported!\n", b);
194 if(b == 4) {
195 fprintf(stderr, "(This is a grayscale image with alpha channel-\n");
196 fprintf(stderr, " try converting it into an RGB image with alpha channel)\n");
197 }
198 exit(1);
199 }
200 if(a!=8 && (b==2 || b==6)) {
201 fprintf(stderr, "Bpp %d in mode %d not supported!\n", b, a);
202 exit(1);
203 }
204 if(c!=0) {
205 fprintf(stderr, "Compression mode %d not supported!\n", c);
206 exit(1);
207 }
208 if(f!=0) {
209 fprintf(stderr, "Filter mode %d not supported!\n", f);
210 exit(1);
211 }
212 if(i!=0) {
213 fprintf(stderr, "Interlace mode %d not supported!\n", i);
214 exit(1);
215 }
216 if(VERBOSE(2))
217 printf("%dx%d %d %d %d %d %d\n",header->width, header->height, a,b,c,f,i);
218 header->bpp = a;
219 header->mode = b;
220 ok = 1;
221 }
222
223 free(data);
224 }
225 return ok;
226 }
227
228 typedef unsigned char byte;
229 #define ABS(a) ((a)>0?(a):(-(a)))
PaethPredictor(byte a,byte b,byte c)230 byte inline PaethPredictor (byte a,byte b,byte c)
231 {
232 // a = left, b = above, c = upper left
233 int p = a + b - c; // initial estimate
234 int pa = ABS(p - a); // distances to a, b, c
235 int pb = ABS(p - b);
236 int pc = ABS(p - c);
237 // return nearest of a,b,c,
238 // breaking ties in order a,b,c.
239 if (pa <= pb && pa <= pc)
240 return a;
241 else if (pb <= pc)
242 return b;
243 else return c;
244 }
245
applyfilter3(int mode,U8 * src,U8 * old,U8 * dest,int width)246 void applyfilter3(int mode, U8*src, U8*old, U8*dest, int width)
247 {
248 int x;
249 unsigned char lastr=0;
250 unsigned char lastg=0;
251 unsigned char lastb=0;
252 unsigned char upperlastr=0;
253 unsigned char upperlastg=0;
254 unsigned char upperlastb=0;
255
256 if(mode==0) {
257 for(x=0;x<width;x++) {
258 dest[0] = 255;
259 dest[1] = src[0];
260 dest[2] = src[1];
261 dest[3] = src[2];
262 dest+=4;
263 src+=3;
264 }
265 }
266 else if(mode==1) {
267 for(x=0;x<width;x++) {
268 dest[0] = 255;
269 dest[1] = src[0]+lastr;
270 dest[2] = src[1]+lastg;
271 dest[3] = src[2]+lastb;
272 lastr = dest[1];
273 lastg = dest[2];
274 lastb = dest[3];
275 dest+=4;
276 src+=3;
277 }
278 }
279 else if(mode==2) {
280 for(x=0;x<width;x++) {
281 dest[0] = 255;
282 dest[1] = src[0]+old[1];
283 dest[2] = src[1]+old[2];
284 dest[3] = src[2]+old[3];
285 dest+=4;
286 old+=4;
287 src+=3;
288 }
289 }
290 else if(mode==3) {
291 for(x=0;x<width;x++) {
292 dest[0] = 255;
293 dest[1] = src[0]+(old[1]+lastr)/2;
294 dest[2] = src[1]+(old[2]+lastg)/2;
295 dest[3] = src[2]+(old[3]+lastb)/2;
296 lastr = dest[1];
297 lastg = dest[2];
298 lastb = dest[3];
299 dest+=4;
300 old+=4;
301 src+=3;
302 }
303 }
304 else if(mode==4) {
305 for(x=0;x<width;x++) {
306 dest[0] = 255;
307 dest[1] = src[0]+PaethPredictor(lastr,old[1],upperlastr);
308 dest[2] = src[1]+PaethPredictor(lastg,old[2],upperlastg);
309 dest[3] = src[2]+PaethPredictor(lastb,old[3],upperlastb);
310 lastr = dest[1];
311 lastg = dest[2];
312 lastb = dest[3];
313 upperlastr = old[1];
314 upperlastg = old[2];
315 upperlastb = old[3];
316 dest+=4;
317 old+=4;
318 src+=3;
319 }
320 }
321 }
322
applyfilter4(int mode,U8 * src,U8 * old,U8 * dest,int width)323 void applyfilter4(int mode, U8*src, U8*old, U8*dest, int width)
324 {
325 int x;
326 unsigned char lastr=0;
327 unsigned char lastg=0;
328 unsigned char lastb=0;
329 unsigned char lasta=0; //TODO: 255?
330 unsigned char upperlastr=0;
331 unsigned char upperlastg=0;
332 unsigned char upperlastb=0;
333 unsigned char upperlasta=0; //TODO: 255?
334
335 if(mode==0) {
336 for(x=0;x<width;x++) {
337 dest[0] = src[3];
338 dest[1] = src[0];
339 dest[2] = src[1];
340 dest[3] = src[2];
341 dest+=4;
342 src+=4;
343 }
344 }
345 else if(mode==1) {
346 for(x=0;x<width;x++) {
347 dest[0] = src[3]+lasta;
348 dest[1] = src[0]+lastr;
349 dest[2] = src[1]+lastg;
350 dest[3] = src[2]+lastb;
351 lasta = dest[0];
352 lastr = dest[1];
353 lastg = dest[2];
354 lastb = dest[3];
355 dest+=4;
356 src+=4;
357 }
358 }
359 else if(mode==2) {
360 for(x=0;x<width;x++) {
361 dest[0] = src[3]+old[0];
362 dest[1] = src[0]+old[1];
363 dest[2] = src[1]+old[2];
364 dest[3] = src[2]+old[3];
365 dest+=4;
366 old+=4;
367 src+=4;
368 }
369 }
370 else if(mode==3) {
371 for(x=0;x<width;x++) {
372 dest[0] = src[3]+(old[0]+lasta)/2;
373 dest[1] = src[0]+(old[1]+lastr)/2;
374 dest[2] = src[1]+(old[2]+lastg)/2;
375 dest[3] = src[2]+(old[3]+lastb)/2;
376 lasta = dest[0];
377 lastr = dest[1];
378 lastg = dest[2];
379 lastb = dest[3];
380 dest+=4;
381 old+=4;
382 src+=4;
383 }
384 }
385 else if(mode==4) {
386 for(x=0;x<width;x++) {
387 dest[0] = src[3]+PaethPredictor(lasta,old[0],upperlasta);
388 dest[1] = src[0]+PaethPredictor(lastr,old[1],upperlastr);
389 dest[2] = src[1]+PaethPredictor(lastg,old[2],upperlastg);
390 dest[3] = src[2]+PaethPredictor(lastb,old[3],upperlastb);
391 lasta = dest[0];
392 lastr = dest[1];
393 lastg = dest[2];
394 lastb = dest[3];
395 upperlasta = old[0];
396 upperlastr = old[1];
397 upperlastg = old[2];
398 upperlastb = old[3];
399 dest+=4;
400 old+=4;
401 src+=4;
402 }
403 }
404
405 }
406
applyfilter1(int mode,U8 * src,U8 * old,U8 * dest,int width)407 void applyfilter1(int mode, U8*src, U8*old, U8*dest, int width)
408 {
409 int x;
410 unsigned char last=0;
411 unsigned char upperlast=0;
412
413 if(mode==0) {
414 for(x=0;x<width;x++) {
415 *dest = *src;
416 dest++;
417 src++;
418 }
419 }
420 else if(mode==1) {
421 for(x=0;x<width;x++) {
422 *dest = *src+last;
423 last = *dest;
424 dest++;
425 src++;
426 }
427 }
428 else if(mode==2) {
429 for(x=0;x<width;x++) {
430 *dest = *src+*old;
431 dest++;
432 old++;
433 src++;
434 }
435 }
436 else if(mode==3) {
437 for(x=0;x<width;x++) {
438 *dest = *src+(*old+last)/2;
439 last = *dest;
440 dest++;
441 old++;
442 src++;
443 }
444 }
445 else if(mode==4) {
446 for(x=0;x<width;x++) {
447 *dest = *src+PaethPredictor(last,*old,upperlast);
448 last = *dest;
449 upperlast = *old;
450 dest++;
451 old++;
452 src++;
453 }
454 }
455
456 }
457
MovieAddFrame(SWF * swf,TAG * t,char * sname,int id)458 TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
459 {
460 SHAPE *s;
461 SRECT r;
462 MATRIX m;
463 int fs;
464
465 unsigned width=0, height=0;
466
467 #ifndef HAVE_JPEGLIB
468 if(global.mkjpeg) {
469 global.mkjpeg = 0;
470 msg("<warning> No jpeg support compiled in");
471 }
472 #endif
473 if(global.mkjpeg) {
474 #ifdef HAVE_JPEGLIB
475 RGBA*data = 0;
476 png_load(sname, &width, &height, (unsigned char**)&data);
477 if(!data)
478 exit(1);
479 if(swf_ImageHasAlpha(data, width, height)) {
480 t = swf_InsertTag(t, ST_DEFINEBITSJPEG3);
481 swf_SetU16(t, id);
482 swf_SetJPEGBits3(t, width,height,data,global.mkjpeg);
483 } else {
484 t = swf_InsertTag(t, ST_DEFINEBITSJPEG2);
485 swf_SetU16(t, id);
486 swf_SetJPEGBits2(t, width,height,data,global.mkjpeg);
487 }
488 #endif
489 } else {
490 RGBA*data = 0;
491 png_load(sname, &width, &height, (unsigned char**)&data);
492 if(!data)
493 exit(1);
494 t = swf_InsertTag(t, ST_DEFINEBITSLOSSLESS);
495 swf_SetU16(t, id);
496 swf_SetLosslessImage(t, data,width,height);
497 }
498
499 t = swf_InsertTag(t, ST_DEFINESHAPE3);
500
501 swf_ShapeNew(&s);
502 swf_GetMatrix(NULL, &m);
503 m.sx = (int)(20 * 0x10000);
504 m.sy = (int)(20 * 0x10000);
505 m.tx = 0;
506 m.ty = 0;
507 fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 1);
508
509 swf_SetU16(t, id + 1); // id
510
511 r.xmin = r.ymin = 0;
512 r.xmax = width * 20;
513 r.ymax = height * 20;
514 swf_SetRect(t, &r);
515
516 swf_SetShapeHeader(t, s);
517
518 swf_ShapeSetAll(t, s, 0, 0, 0, fs, 0);
519 swf_ShapeSetLine(t, s, r.xmax, 0);
520 swf_ShapeSetLine(t, s, 0, r.ymax);
521 swf_ShapeSetLine(t, s, -r.xmax, 0);
522 swf_ShapeSetLine(t, s, 0, -r.ymax);
523
524 swf_ShapeSetEnd(t);
525
526 t = swf_InsertTag(t, ST_REMOVEOBJECT2);
527 swf_SetU16(t, 50); // depth
528
529 t = swf_InsertTag(t, ST_PLACEOBJECT2);
530
531 swf_GetMatrix(NULL, &m);
532 m.sx = (int)(0x10000 * global.scale);
533 m.sy = (int)(0x10000 * global.scale);
534
535 if(custom_move) {
536 m.tx = move_x*20;
537 m.ty = move_y*20;
538 } else {
539 m.tx = (swf->movieSize.xmax - (int) (width * global.scale * 20)) / 2;
540 m.ty = (swf->movieSize.ymax - (int) (height * global.scale * 20)) / 2;
541 }
542 swf_ObjectPlace(t, id + 1, 50, &m, NULL, NULL);
543
544 t = swf_InsertTag(t, ST_SHOWFRAME);
545
546 return t;
547 }
548
549
CheckInputFile(char * fname,char ** realname)550 int CheckInputFile(char *fname, char **realname)
551 {
552 FILE *fi;
553 char *s = malloc(strlen(fname) + 5);
554 struct png_header head;
555
556 if (!s)
557 exit(2);
558 (*realname) = s;
559 strcpy(s, fname);
560
561 // Check whether file exists (with typical extensions)
562
563 if ((fi = fopen(s, "rb")) == NULL) {
564 sprintf(s, "%s.png", fname);
565 if ((fi = fopen(s, "rb")) == NULL) {
566 sprintf(s, "%s.PNG", fname);
567 if ((fi = fopen(s, "rb")) == NULL) {
568 sprintf(s, "%s.Png", fname);
569 if ((fi = fopen(s, "rb")) == NULL) {
570 fprintf(stderr, "Couldn't open %s!\n", fname);
571 return -1;
572 }
573 }
574 }
575 }
576
577 if(!png_read_header(fi, &head)) {
578 fprintf(stderr, "%s is not a PNG file!\n", fname);
579 return -1;
580 }
581
582 if (global.max_image_width < head.width)
583 global.max_image_width = head.width;
584 if (global.max_image_height < head.height)
585 global.max_image_height = head.height;
586
587 fclose(fi);
588
589 return 0;
590 }
591
args_callback_option(char * arg,char * val)592 int args_callback_option(char *arg, char *val)
593 {
594 int res = 0;
595 if (arg[1])
596 res = -1;
597 else
598 switch (arg[0]) {
599 case 'r':
600 if (val)
601 global.framerate = atof(val);
602 /* removed framerate>0 restriction in order to make
603 Flash Communication Server compatible SWFs */
604 if ((global.framerate < 0) ||(global.framerate >= 256.0)) {
605 if (VERBOSE(1))
606 fprintf(stderr,
607 "Error: You must specify a valid framerate between 1/256 and 255.\n");
608 exit(1);
609 }
610 res = 1;
611 break;
612
613 case 'o':
614 if (val)
615 global.outfile = val;
616 res = 1;
617 break;
618
619 case 's':
620 global.scale = atof(val)/100;
621 res = 1;
622 break;
623
624 case 'z':
625 if(global.version<6)
626 global.version = 6;
627 res = 0;
628 break;
629
630 case 'j':
631 global.mkjpeg = atoi(val);
632 res = 1;
633 break;
634
635 case 'T':
636 global.version = atoi(val);
637 res = 1;
638 break;
639
640 case 'C':
641 global.do_cgi = 1;
642 break;
643
644 case 'v':
645 global.verbose++;
646 res = 0;
647 break;
648
649 case 'q':
650 global.verbose--;
651 if(global.verbose<0)
652 global.verbose = 0;
653 res = 0;
654 break;
655
656 case 'X':
657 if (val)
658 global.force_width = atoi(val);
659 res = 1;
660 break;
661
662 case 'Y':
663 if (val)
664 global.force_height = atoi(val);
665 res = 1;
666 break;
667
668 case 'V':
669 printf("png2swf - part of %s %s\n", PACKAGE, VERSION);
670 exit(0);
671
672 case 'c': {
673 char*s = strdup(val);
674 char*x1 = strtok(s, ":");
675 char*y1 = strtok(0, ":");
676 char*x2 = strtok(0, ":");
677 char*y2 = strtok(0, ":");
678 if(!(x1 && y1 && x2 && y2)) {
679 fprintf(stderr, "-m option requires four arguments, <x1>:<y1>:<x2>:<y2>\n");
680 exit(1);
681 }
682 custom_clip = 1;
683 clip_x1 = atoi(x1);
684 clip_y1 = atoi(y1);
685 clip_x2 = atoi(x2);
686 clip_y2 = atoi(y2);
687 free(s);
688
689 res = 1;
690 break;
691 }
692
693 case 'm': {
694 char*s = strdup(val);
695 char*c = strchr(s, ':');
696 if(!c) {
697 fprintf(stderr, "-m option requires two arguments, <x>:<y>\n");
698 exit(1);
699 }
700 *c = 0;
701 custom_move = 1;
702 move_x = atoi(val);
703 move_y = atoi(c+1);
704 free(s);
705
706 res = 1;
707 break;
708 }
709
710 default:
711 res = -1;
712 break;
713 }
714
715 if (res < 0) {
716 if (VERBOSE(1))
717 fprintf(stderr, "Unknown option: -%s\n", arg);
718 exit(1);
719 return 0;
720 }
721 return res;
722 }
723
724 static struct options_t options[] = {
725 {"r", "rate"},
726 {"o", "output"},
727 {"j", "jpeg"},
728 {"z", "zlib"},
729 {"T", "flashversion"},
730 {"X", "pixel"},
731 {"Y", "pixel"},
732 {"v", "verbose"},
733 {"q", "quiet"},
734 {"C", "cgi"},
735 {"V", "version"},
736 {"s", "scale"},
737 {0,0}
738 };
739
args_callback_longoption(char * name,char * val)740 int args_callback_longoption(char *name, char *val)
741 {
742 return args_long2shortoption(options, name, val);
743 }
744
args_callback_command(char * arg,char * next)745 int args_callback_command(char *arg, char *next) // actually used as filename
746 {
747 char *s;
748 if (CheckInputFile(arg, &s) < 0) {
749 if (VERBOSE(1))
750 fprintf(stderr, "Error opening input file: %s\n", arg);
751 free(s);
752 } else {
753 image[global.nfiles].filename = s;
754 global.nfiles++;
755 if (global.nfiles >= MAX_INPUT_FILES) {
756 if (VERBOSE(1))
757 fprintf(stderr, "Error: Too many input files.\n");
758 exit(1);
759 }
760 }
761 return 0;
762 }
763
args_callback_usage(char * name)764 void args_callback_usage(char *name)
765 {
766 printf("\n");
767 printf("Usage: %s [-X width] [-Y height] [-o file.swf] [-r rate] file1.png [file2.png...]\n", name);
768 printf("\n");
769 printf("-r , --rate <framerate> Set movie framerate (frames per second)\n");
770 printf("-o , --output <filename> Set name for SWF output file.\n");
771 printf("-j , --jpeg <quality> Generate a lossy jpeg bitmap inside the SWF, with a given quality (1-100)\n");
772 printf("-z , --zlib <zlib> Enable Flash 6 (MX) Zlib Compression\n");
773 printf("-T , --flashversion Set the flash version to generate\n");
774 printf("-X , --pixel <width> Force movie width to <width> (default: autodetect)\n");
775 printf("-Y , --pixel <height> Force movie height to <height> (default: autodetect)\n");
776 printf("-v , --verbose <level> Set verbose level (0=quiet, 1=default, 2=debug)\n");
777 printf("-q , --quiet Omit normal log messages, only log errors\n");
778 printf("-C , --cgi For use as CGI- prepend http header, write to stdout\n");
779 printf("-V , --version Print version information and exit\n");
780 printf("-s , --scale <percent> Scale image to <percent>% size.\n");
781 printf("\n");
782 }
783
main(int argc,char ** argv)784 int main(int argc, char **argv)
785 {
786 SWF swf;
787 TAG *t;
788
789 memset(&global, 0x00, sizeof(global));
790
791 global.framerate = 1.0;
792 global.verbose = 1;
793 global.version = 8;
794 global.scale = 1.0;
795
796 processargs(argc, argv);
797
798 if(global.nfiles<=0) {
799 fprintf(stderr, "No png files found in arguments\n");
800 return 1;
801 }
802
803 if (VERBOSE(2))
804 fprintf(stderr, "Processing %i file(s)...\n", global.nfiles);
805
806 t = MovieStart(&swf, global.framerate,
807 global.force_width ? global.force_width : (int)(global.max_image_width*global.scale),
808 global.force_height ? global.force_height : (int)(global.max_image_height*global.scale));
809
810 {
811 int i;
812 for (i = 0; i < global.nfiles; i++) {
813 if (VERBOSE(3))
814 fprintf(stderr, "[%03i] %s\n", i,
815 image[i].filename);
816 t = MovieAddFrame(&swf, t, image[i].filename, (i * 2) + 1);
817 free(image[i].filename);
818 }
819 }
820
821 MovieFinish(&swf, t, global.outfile);
822
823 return 0;
824 }
825