2 Allows to extract parts of the swf into a new file.
4 Part of the swftools package.
6 Copyright (c) 2001 Matthias Kramm <kramm@quiss.org>
8 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.
13 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.
18 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 */
25 #include "../lib/rfxswf.h"
26 #include "../lib/args.h"
27 #include "../lib/log.h"
31 #define _ZLIB_INCLUDED_
36 char * destfilename = "output.swf";
40 char* extractframes = 0;
41 char* extractjpegids = 0;
42 char* extractfontids = 0;
43 char* extractpngids = 0;
44 char* extractsoundids = 0;
47 char* extractname = 0;
50 char originalplaceobjects = 0;
55 struct options_t options[] =
75 int args_callback_option(char*name,char*val)
77 if(!strcmp(name, "V")) {
78 printf("swfextract - part of %s %s\n", PACKAGE, VERSION);
81 else if(!strcmp(name, "o")) {
85 else if(!strcmp(name, "i")) {
89 fprintf(stderr, "You can only supply either name or id\n");
94 else if(!strcmp(name, "n")) {
98 fprintf(stderr, "You can only supply either name or id\n");
103 else if(!strcmp(name, "v")) {
107 else if(!strcmp(name, "m")) {
112 else if(!strcmp(name, "j")) {
114 fprintf(stderr, "Only one --jpegs argument is allowed. (Try to use a range, e.g. -j 1,2,3)\n");
117 /* TODO: count number of IDs in val range */
119 extractjpegids = val;
122 else if(!strcmp(name, "F")) {
124 fprintf(stderr, "Only one --font argument is allowed. (Try to use a range, e.g. -s 1,2,3)\n");
128 extractfontids = val;
131 else if(!strcmp(name, "s")) {
132 if(extractsoundids) {
133 fprintf(stderr, "Only one --sound argument is allowed. (Try to use a range, e.g. -s 1,2,3)\n");
137 extractsoundids = val;
140 #ifdef _ZLIB_INCLUDED_
141 else if(!strcmp(name, "p")) {
143 fprintf(stderr, "Only one --png argument is allowed. (Try to use a range, e.g. -p 1,2,3)\n");
151 else if(!strcmp(name, "f")) {
156 else if(!strcmp(name, "P")) {
157 originalplaceobjects = 1;
160 else if(!strcmp(name, "0")) {
164 else if(!strcmp(name, "w")) {
169 printf("Unknown option: -%s\n", name);
175 int args_callback_longoption(char*name,char*val)
177 return args_long2shortoption(options, name, val);
179 void args_callback_usage(char*name)
181 printf("Usage: %s [-v] [-n name] [-ijf ids] file.swf\n", name);
182 printf("\t-v , --verbose\t\t\t Be more verbose\n");
183 printf("\t-o , --output filename\t\t set output filename\n");
184 printf("\t-V , --version\t\t\t Print program version and exit\n\n");
185 printf("SWF Subelement extraction:\n");
186 printf("\t-n , --name name\t\t instance name of the object (SWF Define) to extract\n");
187 printf("\t-i , --id ID\t\t\t ID of the object, shape or movieclip to extract\n");
188 printf("\t-f , --frame frames\t\t frame numbers to extract\n");
189 printf("\t-w , --hollow\t\t\t hollow mode: don't remove empty frames\n");
190 printf("\t \t\t\t (use with -f)\n");
191 printf("\t-P , --placeobject\t\t\t Insert original placeobject into output file\n");
192 printf("\t \t\t\t (use with -i)\n");
193 printf("SWF Font/Text extraction:\n");
194 printf("\t-F , --font ID\t\t\t Extract font(s)\n");
195 printf("Picture extraction:\n");
196 printf("\t-j , --jpeg ID\t\t\t Extract JPEG picture(s)\n");
197 #ifdef _ZLIB_INCLUDED_
198 printf("\t-p , --pngs ID\t\t\t Extract PNG picture(s)\n");
201 printf("Sound extraction:\n");
202 printf("\t-m , --mp3\t\t\t Extract main mp3 stream\n");
203 printf("\t-s , --sound ID\t\t\t Extract Sound(s)\n");
205 int args_callback_command(char*name,char*val)
208 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
215 U8 mainr,maing,mainb;
216 /* 1 = used, not expanded,
218 5 = wanted, not expanded
225 int extractname_id = -1;
227 void idcallback(void*data)
229 if(!(used[GET16(data)]&1)) {
231 used[GET16(data)] |= 1;
235 void enumerateIDs(TAG*tag, void(*callback)(void*))
241 data = (U8*)malloc(len);
242 PUT16(data, (tag->id<<6)+63);
243 *(U8*)&data[2] = tag->len;
244 *(U8*)&data[3] = tag->len>>8;
245 *(U8*)&data[4] = tag->len>>16;
246 *(U8*)&data[5] = tag->len>>24;
247 memcpy(&data[6], tag->data, tag->len);
250 data = (U8*)malloc(len);
251 PUT16(data, (tag->id<<6)+tag->len);
252 memcpy(&data[2], tag->data, tag->len);
254 map_ids_mem(data, len, callback);
256 int num = swf_GetNumUsedIDs(tag);
257 int *ptr = malloc(sizeof(int)*num);
259 swf_GetUsedIDs(tag, ptr);
261 callback(&tag->data[ptr[t]]);
264 void moveToZero(TAG*tag)
266 if(!swf_isPlaceTag(tag))
269 swf_GetPlaceObject(tag, &obj);
272 swf_ResetTag(tag, tag->id);
273 swf_SetPlaceObject(tag, &obj);
276 void extractTag(SWF*swf, char*filename)
288 memset(&newswf,0x00,sizeof(SWF)); // set global movie parameters
290 newswf.fileVersion = swf->fileVersion;
291 newswf.frameRate = swf->frameRate;
292 newswf.movieSize = swf->movieSize;
293 if(movetozero && originalplaceobjects) {
294 newswf.movieSize.xmax = swf->movieSize.xmax - swf->movieSize.xmin;
295 newswf.movieSize.ymax = swf->movieSize.ymax - swf->movieSize.ymin;
296 newswf.movieSize.xmin = 0;
297 newswf.movieSize.ymin = 0;
300 newswf.firstTag = swf_InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
301 desttag = newswf.firstTag;
305 swf_SetRGB(desttag,&rgb);
307 swf_GetRect(0, &objectbbox);
311 for(t=0;t<65536;t++) {
312 if(used[t] && !(used[t]&2)) {
314 msg("<warning> ID %d is referenced, but never defined.", t);
315 } else if(tags[t]->id==ST_DEFINESPRITE) {
317 while(tag->id != ST_END)
319 enumerateIDs(tag, idcallback);
324 enumerateIDs(tags[t], idcallback);
331 srctag = swf->firstTag;
334 while(srctag && (srctag->id || sprite)) {
339 if(srctag->id == ST_END) {
342 if(srctag->id == ST_DEFINESPRITE)
344 if(srctag->id == ST_JPEGTABLES)
346 if(swf_isDefiningTag(srctag)) {
347 int id = swf_GetDefineID(srctag);
351 b = swf_GetDefineBBox(srctag);
352 swf_ExpandRect2(&objectbbox, &b);
355 if ((((swf_isPlaceTag(srctag) && originalplaceobjects)
356 || srctag->id == ST_STARTSOUND) && (used[swf_GetPlaceID(srctag)]&4) ) ||
357 (swf_isPseudoDefiningTag(srctag) && used[swf_GetDefineID(srctag)]) ||
364 if(srctag->id == ST_REMOVEOBJECT) {
365 if(!used[swf_GetPlaceID(srctag)])
370 TAG*ttag = (TAG*)malloc(sizeof(TAG));
371 desttag = swf_InsertTag(desttag, srctag->id);
372 desttag->len = desttag->memsize = srctag->len;
373 desttag->data = malloc(srctag->len);
374 memcpy(desttag->data, srctag->data, srctag->len);
375 if(movetozero && swf_isPlaceTag(desttag)) {
382 srctag = srctag->next;
385 if(!extractframes && !hollow) {
386 if(!originalplaceobjects && (extractids||extractname_id>=0)) {
392 memset(&bbox, 0, sizeof(SRECT));
394 for(t=0;t<65536;t++) {
395 if(is_in_range(t, extractids)) {
402 printf("warning! You should use the -P when extracting multiple objects\n");
406 /* if there is only one object, we will scale it.
407 So let's figure out its bounding box */
408 TAG*tag = swf->firstTag;
410 if(swf_isDefiningTag(tag) && tag->id != ST_DEFINESPRITE) {
411 if(swf_GetDefineID(tag) == id)
412 bbox = swf_GetDefineBBox(tag);
417 newswf.movieSize.xmin = 0;
418 newswf.movieSize.ymin = 0;
419 newswf.movieSize.xmax = 512*20;
420 newswf.movieSize.ymax = 512*20;
422 if((objectbbox.xmin|objectbbox.ymin|objectbbox.xmax|objectbbox.ymax)!=0)
423 newswf.movieSize = objectbbox;
426 if(extractname_id>=0) {
427 desttag = swf_InsertTag(desttag, ST_PLACEOBJECT2);
428 swf_ObjectPlace(desttag, extractname_id, extractname_id, 0,0,extractname);
430 for(t=0;t<65536;t++) {
431 if(is_in_range(t, extractids)) {
433 desttag = swf_InsertTag(desttag, ST_PLACEOBJECT2);
434 swf_GetMatrix(0, &m);
436 int width = bbox.xmax - bbox.xmin;
437 int height = bbox.ymax - bbox.ymin;
438 int max = width>height?width:height;
442 m.sx = (512*20*65536)/max;
443 m.sy = (512*20*65536)/max;
445 //newswf.movieSize = swf_TurnRect(newswf.movieSize, &m);
447 swf_ObjectPlace(desttag, t, t, &m,0,0);
452 desttag = swf_InsertTag(desttag,ST_SHOWFRAME);
454 desttag = swf_InsertTag(desttag,ST_END);
456 f = open(filename, O_TRUNC|O_WRONLY|O_CREAT|O_BINARY, 0644);
457 if FAILED(swf_WriteSWF(f,&newswf)) fprintf(stderr,"WriteSWF() failed.\n");
460 swf_FreeTags(&newswf); // cleanup
463 int isOfType(int t, TAG*tag)
466 if(t == 0 && (tag->id == ST_DEFINESHAPE ||
467 tag->id == ST_DEFINESHAPE2 ||
468 tag->id == ST_DEFINESHAPE3)) {
471 if(t==1 && tag->id == ST_DEFINESPRITE) {
474 if(t == 2 && (tag->id == ST_DEFINEBITS ||
475 tag->id == ST_DEFINEBITSJPEG2 ||
476 tag->id == ST_DEFINEBITSJPEG3)) {
479 if(t == 3 && (tag->id == ST_DEFINEBITSLOSSLESS ||
480 tag->id == ST_DEFINEBITSLOSSLESS2)) {
483 if(t == 4 && (tag->id == ST_DEFINESOUND)) {
486 if(t == 5 && (tag->id == ST_DEFINEFONT || tag->id == ST_DEFINEFONT2)) {
492 void listObjects(SWF*swf)
498 char*names[] = {"Shape", "MovieClip", "JPEG", "PNG", "Sound", "Font"};
499 char*options[] = {"-i", "-i", "-j", "-p", "-s", "-F"};
501 printf("Objects in file %s:\n",filename);
503 for(t=0;t<sizeof(names)/sizeof(names[0]);t++) {
505 int lastid = -2, lastprint=-1;
510 if(tag->id == ST_SOUNDSTREAMHEAD || tag->id == ST_SOUNDSTREAMHEAD2)
519 printf(" [%s] %d %s%s: ID(s) ", options[t], nr, names[t], nr>1?"s":"");
524 char show = isOfType(t,tag);
530 id = swf_GetDefineID(tag);
535 if(first || !follow) {
540 if(lastprint + 1 == lastid)
541 printf(", %d, %d", lastid, id);
543 printf("-%d, %d", lastid, id);
553 if(lastprint + 1 == lastid)
554 printf(", %d", lastid);
556 printf("-%d", lastid);
562 printf(" [-f] %d Frames: ID(s) 0-%d\n", frame, frame);
564 printf(" [-f] 1 Frame: ID(s) 0\n");
567 printf(" [-m] 1 MP3 Soundstream\n");
570 void handlefont(SWF*swf, TAG*tag)
575 char*filename = name;
578 id = swf_GetDefineID(tag);
579 sprintf(name, "font%d.swf", id);
581 filename = destfilename;
584 swf_FontExtract(swf, id, &f);
586 printf("Couldn't extract font %d\n", id);
590 swf_FontCreateLayout(f);
592 swf_WriteFont(f, filename);
596 static char has_jpegtables=0;
597 static U8*jpegtables = 0;
598 static int jpegtablessize = 0;
600 void handlejpegtables(TAG*tag)
602 if(tag->id == ST_JPEGTABLES) {
603 jpegtables = tag->data;
604 jpegtablessize = tag->len;
609 FILE* save_fopen(char* name, char* mode)
611 FILE*fi = fopen(name, mode);
613 fprintf(stderr, "Error: Couldn't open %s\n", name);
619 int findjpegboundary(U8*data, int len)
623 for(t=0;t<len-4;t++) {
634 /* extract jpeg data out of a tag */
635 void handlejpeg(TAG*tag)
638 char*filename = name;
641 sprintf(name, "pic%d.jpg", GET16(tag->data));
643 filename = destfilename;
644 if(!strcmp(filename,"output.swf"))
645 filename = "output.jpg";
647 /* swf jpeg images have two streams, which both start with ff d8 and
648 end with ff d9. The following code handles sorting the middle
649 <ff d9 ff d8> bytes out, so that one stream remains */
650 if(tag->id == ST_DEFINEBITSJPEG && tag->len>2 && has_jpegtables) {
651 fi = save_fopen(filename, "wb");
652 if(jpegtablessize>=2) {
653 fwrite(jpegtables, 1, jpegtablessize-2, fi); //don't write end tag (ff,d8)
654 fwrite(&tag->data[2+2], tag->len-2-2, 1, fi); //don't write start tag (ff,d9)
656 fwrite(tag->data+2, tag->len-2, 1, fi);
660 else if(tag->id == ST_DEFINEBITSJPEG2 && tag->len>2) {
662 int pos = findjpegboundary(&tag->data[2], tag->len-2);
665 fi = save_fopen(filename, "wb");
666 fwrite(&tag->data[2], pos-2, 1, fi);
667 fwrite(&tag->data[pos+4], end-(pos+4), 1, fi);
670 fi = save_fopen(filename, "wb");
671 fwrite(&tag->data[2], end-2, 1, fi);
675 else if(tag->id == ST_DEFINEBITSJPEG3 && tag->len>6) {
676 U32 end = GET32(&tag->data[2])+6;
677 int pos = findjpegboundary(&tag->data[6], tag->len-6);
681 fi = save_fopen(filename, "wb");
682 fwrite(&tag->data[6], pos-6, 1, fi);
683 fwrite(&tag->data[pos+4], end-(pos+4), 1, fi);
687 int id = GET16(tag->data);
688 fprintf(stderr, "Object %d is not a JPEG picture!\n",id, jpegtables);
693 #ifdef _ZLIB_INCLUDED_
696 static U32*crc32_table = 0;
697 static void make_crc32_table(void)
702 crc32_table = (U32*)malloc(1024);
704 for (t = 0; t < 256; t++) {
707 for (s = 0; s < 8; s++) {
708 c = (0xedb88320L*(c&1)) ^ (c >> 1);
713 static inline void png_write_byte(FILE*fi, U8 byte)
715 fwrite(&byte,1,1,fi);
716 mycrc32 = crc32_table[(mycrc32 ^ byte) & 0xff] ^ (mycrc32 >> 8);
718 static void png_start_chunk(FILE*fi, char*type, int len)
720 U8 mytype[4]={0,0,0,0};
721 U32 mylen = REVERSESWAP32(len);
722 memcpy(mytype,type,strlen(type));
723 fwrite(&mylen, 4, 1, fi);
725 png_write_byte(fi,mytype[0]);
726 png_write_byte(fi,mytype[1]);
727 png_write_byte(fi,mytype[2]);
728 png_write_byte(fi,mytype[3]);
730 static void png_write_bytes(FILE*fi, U8*bytes, int len)
734 png_write_byte(fi,bytes[t]);
736 static void png_write_dword(FILE*fi, U32 dword)
738 png_write_byte(fi,dword>>24);
739 png_write_byte(fi,dword>>16);
740 png_write_byte(fi,dword>>8);
741 png_write_byte(fi,dword);
743 static void png_end_chunk(FILE*fi)
745 U32 tmp = REVERSESWAP32((mycrc32^0xffffffff));
750 /* extract a lossless image (png) out of a tag
751 This routine was originally meant to be a one-pager. I just
752 didn't know png is _that_ much fun. :) -mk
754 void handlelossless(TAG*tag)
757 char*filename = name;
772 U8 head[] = {137,80,78,71,13,10,26,10};
774 char alpha = tag->id == ST_DEFINEBITSLOSSLESS2;
782 if(tag->id != ST_DEFINEBITSLOSSLESS &&
783 tag->id != ST_DEFINEBITSLOSSLESS2) {
784 int id = GET16(tag->data);
785 fprintf(stderr, "Object %d is not a PNG picture!\n",id);
790 format = swf_GetU8(tag);
791 if(format == 3) bpp = 8;
792 if(format == 4) bpp = 16;
793 if(format == 5) bpp = 32;
794 if(format!=3 && format!=5) {
796 fprintf(stderr, "Can't handle 16-bit palette images yet (image %d)\n",id);
798 fprintf(stderr, "Unknown image type %d in image %d\n", format, id);
801 width = swf_GetU16(tag);
802 height = swf_GetU16(tag);
803 if(format == 3) cols = swf_GetU8(tag) + 1;
804 // this is what format means according to the flash specification. (which is
806 // if(format == 4) cols = swf_GetU16(tag) + 1;
807 // if(format == 5) cols = swf_GetU32(tag) + 1;
810 msg("<verbose> Width %d", width);
811 msg("<verbose> Height %d", height);
812 msg("<verbose> Format %d", format);
813 msg("<verbose> Cols %d", cols);
814 msg("<verbose> Bpp %d", bpp);
816 datalen = (width*height*bpp/8+cols*8);
821 data = malloc(datalen);
822 error = uncompress (data, &datalen, &tag->data[tag->pos], tag->len-tag->pos);
823 } while(error == Z_BUF_ERROR);
825 fprintf(stderr, "Zlib error %d (image %d)\n", error, id);
828 msg("<verbose> Uncompressed image is %d bytes (%d colormap)", datalen, (3+alpha)*cols);
831 data2 = malloc(datalen2);
832 palette = (RGBA*)malloc(cols*sizeof(RGBA));
834 for(t=0;t<cols;t++) {
835 palette[t].r = data[pos++];
836 palette[t].g = data[pos++];
837 palette[t].b = data[pos++];
839 palette[t].a = data[pos++];
843 sprintf(name, "pic%d.png", id);
845 filename = destfilename;
846 if(!strcmp(filename,"output.swf"))
847 filename = "output.png";
849 fi = save_fopen(filename, "wb");
850 fwrite(head,sizeof(head),1,fi);
852 png_start_chunk(fi, "IHDR", 13);
853 png_write_dword(fi,width);
854 png_write_dword(fi,height);
855 png_write_byte(fi,8);
857 png_write_byte(fi,3); //indexed
858 else if(format == 5 && alpha==0)
859 png_write_byte(fi,2); //rgb
860 else if(format == 5 && alpha==1)
861 png_write_byte(fi,6); //rgba
864 png_write_byte(fi,0); //compression mode
865 png_write_byte(fi,0); //filter mode
866 png_write_byte(fi,0); //interlace mode
870 png_start_chunk(fi, "PLTE", 768);
873 png_write_byte(fi,palette[t].r);
874 png_write_byte(fi,palette[t].g);
875 png_write_byte(fi,palette[t].b);
880 /* write alpha palette */
881 png_start_chunk(fi, "tRNS", 256);
883 png_write_byte(fi,palette[t].a);
891 int srcwidth = width * (bpp/8);
892 datalen3 = (width*4+5)*height;
893 data3 = (U8*)malloc(datalen3);
894 for(y=0;y<height;y++)
896 data3[pos2++]=0; //filter type
899 // 32 bit to 24 bit "conversion"
900 for(x=0;x<width;x++) {
901 data3[pos2++]=data[pos+1];
902 data3[pos2++]=data[pos+2];
903 data3[pos2++]=data[pos+3];
904 pos+=4; //ignore padding byte
907 for(x=0;x<width;x++) {
908 data3[pos2++]=data[pos+1];
909 data3[pos2++]=data[pos+2];
910 data3[pos2++]=data[pos+3];
911 data3[pos2++]=data[pos+0]; //alpha
917 for(x=0;x<srcwidth;x++)
918 data3[pos2++]=data[pos++];
921 pos+=((srcwidth+3)&~3)-srcwidth; //align
926 if(compress (data2, &datalen2, data3, datalen3) != Z_OK) {
927 fprintf(stderr, "zlib error in pic %d\n", id);
930 msg("<verbose> Compressed data is %d bytes", datalen2);
931 png_start_chunk(fi, "IDAT", datalen2);
932 png_write_bytes(fi,data2,datalen2);
934 png_start_chunk(fi, "IEND", 0);
943 static FILE*mp3file=0;
944 void handlesoundstream(TAG*tag)
946 char*filename = "output.mp3";
948 filename = destfilename;
949 if(!strcmp(filename,"output.swf"))
950 filename = "output.mp3";
953 case ST_SOUNDSTREAMHEAD:
954 if((tag->data[1]&0x30) == 0x20) { //mp3 compression
955 mp3file = fopen(filename, "wb");
956 msg("<notice> Writing mp3 data to %s",filename);
959 msg("<error> Soundstream is not mp3");
961 case ST_SOUNDSTREAMHEAD2:
962 if((tag->data[1]&0x30) == 0x20) {//mp3 compression
963 mp3file = fopen(filename, "wb");
964 msg("<notice> Writing mp3 data to %s",filename);
967 msg("<error> Soundstream is not mp3 (2)");
969 case ST_SOUNDSTREAMBLOCK:
971 fwrite(&tag->data[4],tag->len-4,1,mp3file);
976 void handledefinesound(TAG*tag)
986 int rate,bits,stereo;
987 char*rates[] = {"5500","11025","22050","44100"};
988 id = swf_GetU16(tag); //id
990 flags = swf_GetU8(tag);
996 samples = swf_GetU32(tag);
1000 if(format == 2) { // mp3
1001 swf_GetU16(tag); //numsamples_seek
1003 } else if(format == 0) { // raw
1004 printf("Sound is RAW, format: %s samples/sec, %d bit, %s\n", rates[rate], bits, stereo?"stereo":"mono");
1005 // TODO: convert to WAV
1007 } else if(format == 1) { // adpcm
1008 printf("Sound is ADPCM, format: %s samples/sec, %d bit, %s\n", rates[rate], bits, stereo?"stereo":"mono");
1009 extension = "adpcm";
1011 sprintf(buf, "sound%d.%s", id, extension);
1012 if(numextracts==1) {
1013 filename = destfilename;
1014 if(!strcmp(filename,"output.swf")) {
1015 sprintf(buf, "output.%s", extension);
1019 fi = save_fopen(filename, "wb");
1020 fwrite(&tag->data[tag->pos], tag->len - tag->pos, 1, fi);
1024 int main (int argc,char ** argv)
1033 char listavailable = 0;
1034 processargs(argc, argv);
1036 if(!extractframes && !extractids && ! extractname && !extractjpegids && !extractpngids
1037 && !extractmp3 && !extractsoundids && !extractfontids)
1040 if(!originalplaceobjects && movetozero) {
1041 fprintf(stderr, "Error: -0 (--movetozero) can only be used in conjunction with -P (--placeobject)\n");
1047 fprintf(stderr, "You must supply a filename.\n");
1050 initLog(0,-1,0,0,-1, verbose);
1052 f = open(filename,O_RDONLY|O_BINARY);
1056 perror("Couldn't open file: ");
1059 if (swf_ReadSWF(f,&swf) < 0)
1061 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
1080 tagused = (char*)malloc(tagnum);
1081 memset(tagused, 0, tagnum);
1082 memset(used, 0, 65536);
1083 memset(depths, 0, 65536);
1088 if(swf_isAllowedSpriteTag(tag)) {
1090 if(extractframes && is_in_range(frame, extractframes)) {
1092 if(tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
1093 depths[swf_GetDepth(tag)] = 1;
1095 if(tag->id == ST_REMOVEOBJECT || tag->id == ST_REMOVEOBJECT2) {
1096 int depth = swf_GetDepth(tag);
1099 depths[swf_GetDepth(tag)] = 0;
1102 if((tag->id == ST_REMOVEOBJECT || tag->id == ST_REMOVEOBJECT2) &&
1103 (depths[swf_GetDepth(tag)]) && hollow) {
1105 depths[swf_GetDepth(tag)] = 0;
1109 enumerateIDs(tag, idcallback);
1111 tagused[tagnum] = 1;
1115 if(tag->id == ST_SOUNDSTREAMHEAD ||
1116 tag->id == ST_SOUNDSTREAMHEAD2 ||
1117 tag->id == ST_SOUNDSTREAMBLOCK) {
1119 handlesoundstream(tag);
1122 if(tag->id == ST_JPEGTABLES) {
1123 handlejpegtables(tag);
1126 if(swf_isDefiningTag(tag)) {
1127 int id = swf_GetDefineID(tag);
1129 if(extractids && is_in_range(id, extractids)) {
1133 if(extractfontids && is_in_range(id, extractfontids)) {
1134 handlefont(&swf, tag);
1136 if(extractjpegids && is_in_range(id, extractjpegids)) {
1139 if(extractsoundids && is_in_range(id, extractsoundids)) {
1140 handledefinesound(tag);
1142 #ifdef _ZLIB_INCLUDED_
1143 if(extractpngids && is_in_range(id, extractpngids)) {
1144 handlelossless(tag);
1148 else if (tag->id == ST_SETBACKGROUNDCOLOR) {
1149 mainr = tag->data[0];
1150 maing = tag->data[1];
1151 mainb = tag->data[2];
1153 else if(swf_isPlaceTag(tag) && tag->id != ST_PLACEOBJECT ) {
1154 char*name = swf_GetName(tag);
1155 if(name && extractname && !strcmp(name, extractname)) {
1156 int id = swf_GetPlaceID(tag);
1159 if(originalplaceobjects) {
1160 tagused[tagnum] = 1;
1162 depths[swf_GetDepth(tag)] = 1;
1163 extractname_id = id;
1166 else if(tag->id == ST_SHOWFRAME) {
1169 tagused[tagnum] = 1;
1174 if(tag->id == ST_DEFINESPRITE) {
1175 while(tag->id != ST_END) {
1184 extractTag(&swf, destfilename);
1190 msg("<error> Didn't find a soundstream in file");