-/* vi:sts=2 sw=2 */
+/* vi: set sts=2 sw=2 :*/
/* rfxswf.c
#endif // HAVE_ZLIB_H
#endif // HAVE_LIBZ
+#define LAME
+#include "lame/lame.h"
+
+#include "./bitio.h"
+
// internal constants
#define MALLOC_SIZE 128
{
#ifdef DEBUG_RFXSWF
fprintf(stderr,"Fatal Error: malloc()/realloc() failed (1). (%d bytes)\n", newmem);
+ *(int*)0=0;
#endif
return 0;
}
return res;
}
-/* reader/writer stuff - from ../src/bitio.c */
-#include "./bitio.c"
-
S32 swf_GetSBits(TAG * t,int nbits)
{ U32 res = swf_GetBits(t,nbits);
if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits);
nbits = swf_CountBits(r->xmax,nbits);
nbits = swf_CountBits(r->ymin,nbits);
nbits = swf_CountBits(r->ymax,nbits);
+ if(nbits>=32) {
+ fprintf(stderr, "rfxswf: Warning: num_bits overflow in swf_SetRect\n");
+ nbits=31;
+ }
swf_SetBits(t,nbits,5);
swf_SetBits(t,r->xmin,nbits);
return len;
}
+void swf_UnFoldSprite(TAG * t)
+{
+ U16 id,tmp;
+ U32 len;
+ TAG*next = t;
+ U16 spriteid,spriteframes;
+ if(t->id!=ST_DEFINESPRITE)
+ return;
+ if(t->len<=4) // not folded
+ return;
+
+ swf_SetTagPos(t,0);
+
+ spriteid = swf_GetU16(t); //id
+ spriteframes = swf_GetU16(t); //frames
+
+ tmp = swf_GetU16(t);
+ len = tmp&0x3f;
+ id = tmp>>6;
+ while(id)
+ {
+ TAG*it = 0;
+ if (len==0x3f)
+ len = swf_GetU32(t);
+ it = swf_InsertTag(next, id);
+ next = it;
+ it->len = len;
+ it->id = id;
+ if (it->len)
+ { it->data = (U8*)malloc(t->len);
+ it->memsize = it->len;
+ swf_GetBlock(t, it->data, it->len);
+ }
+ tmp = swf_GetU16(t);
+ len = tmp&0x3f;
+ id = tmp>>6;
+ }
+
+ free(t->data); t->data = 0;
+ t->memsize = t->len = t->pos = 0;
+
+ swf_SetU16(t, spriteid);
+ swf_SetU16(t, spriteframes);
+}
+
void swf_FoldSprite(TAG * t)
{
TAG*sprtag=t,*tmp;
fprintf(stderr, "Error: Sprite has no ID!");
return;
}
+ if(t->len>4) {
+ /* sprite is already folded */
+ return;
+ }
t->pos = 0;
id = swf_GetU16(t);
}
}
+void swf_UnFoldAll(SWF*swf)
+{
+ TAG*tag = swf->firstTag;
+ while(tag) {
+ TAG*next = swf_NextTag(tag);
+ if(tag->id == ST_DEFINESPRITE)
+ swf_UnFoldSprite(tag);
+ tag = next;
+ }
+}
+
// Movie Functions
-int swf_ReadSWF2(struct reader_t*reader2, SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
+int swf_ReadSWF2(struct reader_t*reader, SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
{
if (!swf) return -1;
memset(swf,0x00,sizeof(SWF));
TAG * t;
TAG t1;
struct reader_t zreader;
- struct reader_t* reader;
if ((len = reader->read(reader ,b,8))<8) return -1;
swf->compressed = (b[0]=='C')?1:0;
swf->fileSize = GET32(&b[4]);
- /* TODO: start decompression here */
if(swf->compressed) {
- reader_init_zlibinflate(&zreader, reader2);
+ reader_init_zlibinflate(&zreader, reader);
reader = &zreader;
- } else {
- reader = reader2;
}
reader_GetRect(reader, &swf->movieSize);
t1.next->prev = NULL;
}
- return 0;
+ return reader->pos;
}
int swf_ReadSWF(int handle, SWF * swf)
int swf_WriteSWF2(struct writer_t*writer, SWF * swf) // Writes SWF to file, returns length or <0 if fails
{ U32 len;
TAG * t;
+ int frameCount=0;
+ struct writer_t zwriter;
+ int fileSize = 0;
if (!swf) return -1;
len = 0;
t = swf->firstTag;
- swf->frameCount = 0;
+ frameCount = 0;
while(t)
{ len += swf_WriteTag(-1, t);
- if (t->id==ST_SHOWFRAME) swf->frameCount++;
+ if (t->id==ST_SHOWFRAME) frameCount++;
t = swf_NextTag(t);
}
{ TAG t1;
- char b[64];
+ char b[64],b4[4];
U32 l;
memset(&t1,0x00,sizeof(TAG));
t1.data = (U8*)b;
t1.memsize = 64;
- swf_SetU8(&t1,'F');
- swf_SetU8(&t1,'W');
- swf_SetU8(&t1,'S');
- swf_SetU8(&t1,swf->fileVersion);
-
- swf_SetU32(&t1,swf->fileSize); // Keep space for filesize
+ { // measure header file size
+ TAG t2;
+ char b2[64];
+ memset(&t2,0x00,sizeof(TAG));
+ t2.data = (U8*)b2;
+ t2.memsize = 64;
+ swf_SetRect(&t2, &swf->movieSize);
+ swf_SetU16(&t2, swf->frameRate);
+ swf_SetU16(&t2, swf->frameCount);
+ l = swf_GetTagLen(&t2)+8;
+ }
+
+ fileSize = l+len;
+ if(len) {// don't touch headers without tags
+ swf->fileSize = fileSize;
+ swf->frameCount = frameCount;
+ }
+
+ if(swf->compressed) {
+ char*id = "CWS";
+ writer->write(writer, id, 3);
+ }
+ else {
+ char*id = "FWS";
+ writer->write(writer, id, 3);
+ }
+
+ writer->write(writer, &swf->fileVersion, 1);
+ PUT32(b4, swf->fileSize);
+ writer->write(writer, b4, 4);
+
+ if(swf->compressed) {
+ writer_init_zlibdeflate(&zwriter, writer);
+ writer = &zwriter;
+ }
+
swf_SetRect(&t1,&swf->movieSize);
swf_SetU16(&t1,swf->frameRate);
swf_SetU16(&t1,swf->frameCount);
- l = swf_GetTagLen(&t1);
- swf->fileSize = l+len;
- if(swf->firstTag) {
- t1.len = 4; // bad & ugly trick !
- swf_SetU32(&t1,swf->fileSize);
- }
-
if (writer)
{
- int ret = writer->write(writer,b,l);
- if (ret!=l)
+ int ret = writer->write(writer,b,swf_GetTagLen(&t1));
+ if (ret!=swf_GetTagLen(&t1))
{
#ifdef DEBUG_RFXSWF
printf("ret:%d\n",ret);
{ if (swf_WriteTag2(writer, t)<0) return -1;
t = swf_NextTag(t);
}
+ writer->finish(writer); //e.g. flush zlib buffers
}
}
- return (int)swf->fileSize;
+ return (int)fileSize;
}
int swf_WriteSWF(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
{
struct writer_t writer;
+ swf->compressed = 0;
if(handle<0)
return swf_WriteSWF2(&writer, swf);
writer_init_filewriter(&writer, handle);
return swf_WriteSWF2(&writer, swf);
}
+int swf_WriteSWC(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
+{
+ struct writer_t writer;
+ swf->compressed = 1;
+ if(handle<0)
+ return swf_WriteSWF2(&writer, swf);
+ writer_init_filewriter(&writer, handle);
+ return swf_WriteSWF2(&writer, swf);
+}
+
+int swf_WriteHeader2(struct writer_t*writer,SWF * swf)
+{
+ SWF myswf;
+ memcpy(&myswf,swf,sizeof(SWF));
+ myswf.firstTag = 0;
+ return swf_WriteSWF2(writer, &myswf);
+}
+
int swf_WriteHeader(int handle,SWF * swf)
{
SWF myswf;
memcpy(&myswf,swf,sizeof(SWF));
myswf.firstTag = 0;
- swf_WriteSWF(handle, &myswf);
- return 0;
+ return swf_WriteSWF(handle, &myswf);
}
int swf_WriteCGI(SWF * swf)
git.asbjorn.biz / swftools.git / blobdiff