#include <stdio.h>
#include <assert.h>
#include <math.h>
-#include "../lib/rfxswf.h"
-#include "png.h"
+#include "../rfxswf.h"
#include "h263tables.c"
-
-typedef struct _YUV
-{
- unsigned char y,u,v;
-} YUV;
-
-typedef struct _VIDEOSTREAM
-{
- int width;
- int height;
- int frame;
- int linex;
- YUV*oldpic;
- YUV*current;
-} VIDEOSTREAM;
+#include "swfvideo.h"
void swf_SetVideoStreamDefine(TAG*tag, VIDEOSTREAM*stream, U16 frames, U16 width, U16 height)
{
swf_SetU8(tag, 2); /* codec = h.263 sorenson spark */
memset(stream, 0, sizeof(VIDEOSTREAM));
+ stream->olinex = width;
+ width+=15;width&=~15;
+ height+=15;height&=~15;
stream->linex = width;
- width&=~15;
- height&=~15;
stream->width = width;
stream->height = height;
stream->current = (YUV*)malloc(width*height*sizeof(YUV));
stream->oldpic = (YUV*)malloc(width*height*sizeof(YUV));
memset(stream->oldpic, 0, width*height*sizeof(YUV));
+ memset(stream->current, 0, width*height*sizeof(YUV));
+}
+void swf_VideoStreamClear(VIDEOSTREAM*stream)
+{
+ free(stream->oldpic);stream->oldpic = 0;
+ free(stream->current);stream->current = 0;
}
typedef struct _block_t
p2+=linex*2;
}
}
-static void rgb2yuv(YUV*dest, RGBA*src, int linex, int width, int height)
+static void rgb2yuv(YUV*dest, RGBA*src, int dlinex, int slinex, int width, int height)
{
int x,y;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
- double r,g,b;
- r = src[y*linex+x].r;
- g = src[y*linex+x].g;
- b = src[y*linex+x].b;
- dest[y*linex+x].y = (r*0.299 + g*0.587 + b*0.114);
- dest[y*linex+x].u = (r*-0.169 + g*-0.332 + b*0.500 + 128.0);
- dest[y*linex+x].v = (r*0.500 + g*-0.419 + b*-0.0813 + 128.0);
+ int r,g,b;
+ r = src[y*slinex+x].r;
+ g = src[y*slinex+x].g;
+ b = src[y*slinex+x].b;
+ /*dest[y*dlinex+x].y = (r*0.299 + g*0.587 + b*0.114);
+ dest[y*dlinex+x].u = (r*-0.169 + g*-0.332 + b*0.500 + 128.0);
+ dest[y*dlinex+x].v = (r*0.500 + g*-0.419 + b*-0.0813 + 128.0);*/
+ dest[y*dlinex+x].y = (r*((int)( 0.299*256)) + g*((int)( 0.587*256)) + b*((int)( 0.114 *256)))>>8;
+ dest[y*dlinex+x].u = (r*((int)(-0.169*256)) + g*((int)(-0.332*256)) + b*((int)( 0.500 *256))+ 128*256)>>8;
+ dest[y*dlinex+x].v = (r*((int)( 0.500*256)) + g*((int)(-0.419*256)) + b*((int)(-0.0813*256))+ 128*256)>>8;
}
}
}
return diff/256;
}
-static int valtodc(int val)
+static inline int valtodc(int val)
{
assert(val>=0);
static void quantize8x8(double*src, int*dest, int has_dc, int quant)
{
int t,pos=0;
+ double q = 1.0/(quant*2);
if(has_dc) {
dest[0] = valtodc((int)src[0]); /*DC*/
pos++;
}
for(t=pos;t<64;t++)
{
- dest[t] = (int)src[t];
+ //dest[t] = (int)src[t];
/* exact: if(quant&1){dest[t] = (dest[t]/quant - 1)/2;}else{dest[t] = ((dest[t]+1)/quant - 1)/2;} */
//if(quant&1){dest[t] = (dest[t]/quant - 1)/2;}else{dest[t] = ((dest[t]+1)/quant - 1)/2;}
- dest[t] = dest[t]/(quant*2);
+ //dest[t] = dest[t]/(quant*2);
+ dest[t] = (int)(src[t]*q);
+ /* TODO: warn if this happens- the video will be buggy */
+ if(dest[t]>127) dest[t]=127;
+ if(dest[t]<-127) dest[t]=-127;
}
}
return 0;
}
+static int coefbits8x8(int*bb, int has_dc)
+{
+ int t;
+ int pos=0;
+ int bits=0;
+ int last;
+
+ if(has_dc) {
+ bits+=8;
+ pos++;
+ }
+ for(last=63;last>=pos;last--) {
+ if(bb[last])
+ break;
+ }
+ if(last < pos)
+ return bits;
+ while(1) {
+ int run=0, level=0, islast=0,t;
+ while(!bb[pos] && pos<last) {
+ pos++;
+ run++;
+ }
+ if(pos==last)
+ islast=1;
+ level=bb[pos];
+ if(level<0) level=-level;
+ assert(level);
+ for(t=0;t<RLE_ESCAPE;t++) {
+ if(rle_params[t].run == run &&
+ rle_params[t].level == level &&
+ rle_params[t].last == islast) {
+ bits += rle[t].len + 1;
+ break;
+ }
+ }
+ if(t==RLE_ESCAPE) {
+ bits += rle[RLE_ESCAPE].len + 1 + 6 + 8;
+ }
+ if(islast)
+ break;
+ pos++;
+ }
+ return bits;
+}
+
static void encode8x8(TAG*tag, int*bb, int has_dc, int has_tcoef)
{
int t;
int pos=0;
+ int bits=0;
if(has_dc) {
swf_SetBits(tag, bb[0], 8);
sign = 1;
}
for(t=0;t<RLE_ESCAPE;t++) {
+ /* TODO: lookup table */
if(rle_params[t].run == run &&
rle_params[t].level == level &&
rle_params[t].last == islast) {
}
}
-static void encode_blockP(TAG*tag, VIDEOSTREAM*s, int bx, int by, int*quant)
+static int encode_blockP(TAG*tag, VIDEOSTREAM*s, int bx, int by, int*quant)
{
- fblock_t fb,fbdiff, fbold;
+ fblock_t fb;
block_t b;
int dquant=0;
int has_mvd=0;
int cbpcbits = 0, cbpybits=0;
int diff;
+ block_t b_i;
+ int bits_i;
+
+ fblock_t fbold_v00;
+ block_t b_v00;
+ int bits_v00;
+
diff = compareregions(s, bx, by);
- if(diff < 24 /*TODO: should be a parameter- good values are between 32 and 48 */) {
+ if(diff < 16 /*TODO: should be a parameter- good values are between 32 and 48 */) {
swf_SetBits(tag, 1,1); /* cod=1, block skipped */
copyregion(s, s->current, s->oldpic, bx, by);
- return;
+ return 1;
}
getregion(&fb, s->current, bx, by, s->width);
- //if(diff < 128)
- if(1)
+ { /* consider I-block */
+ fblock_t fb_i;
+ int y,c;
+ memcpy(&fb_i, &fb, sizeof(fblock_t));
+ dodct(&fb_i);
+ quantize(&fb_i, &b_i, 1, *quant);
+ getblockpatterns(&b_i, &y, &c, 1);
+ bits_i = 1; //cod
+ bits_i += mcbpc_inter[3*4+c].len;
+ bits_i += cbpy[y].len;
+ bits_i += coefbits8x8(b_i.y1, 1);
+ bits_i += coefbits8x8(b_i.y2, 1);
+ bits_i += coefbits8x8(b_i.y3, 1);
+ bits_i += coefbits8x8(b_i.y4, 1);
+ bits_i += coefbits8x8(b_i.u, 1);
+ bits_i += coefbits8x8(b_i.v, 1);
+ }
+
+ { /* consider mvd(0,0)-block */
+ fblock_t fbdiff;
+ int y,c;
+ memcpy(&fbdiff, &fb, sizeof(fblock_t));
+ getregion(&fbold_v00, s->oldpic, bx, by, s->linex);
+ yuvdiff(&fbdiff, &fbold_v00);
+ dodct(&fbdiff);
+ quantize(&fbdiff, &b_v00, 0, *quant);
+ getblockpatterns(&b_v00, &y, &c, 0);
+ bits_v00 = 1; //cod
+ bits_v00 += mcbpc_inter[0*4+c].len;
+ bits_v00 += cbpy[y^15].len;
+ bits_v00 += mvd[32].len; // (0,0)
+ bits_v00 += mvd[32].len;
+ bits_v00 += coefbits8x8(b_v00.y1, 0);
+ bits_v00 += coefbits8x8(b_v00.y2, 0);
+ bits_v00 += coefbits8x8(b_v00.y3, 0);
+ bits_v00 += coefbits8x8(b_v00.y4, 0);
+ bits_v00 += coefbits8x8(b_v00.u, 0);
+ bits_v00 += coefbits8x8(b_v00.v, 0);
+ }
+
+ if(bits_i > bits_v00)
{
/* mvd (0,0) block (mode=0) */
int t;
- memcpy(&fbdiff, &fb, sizeof(fblock_t));
- getregion(&fbold, s->oldpic, bx, by, s->linex);
- yuvdiff(&fbdiff, &fbold);
- //getregiondiff(&fbdiff, s->oldpic, s->current, bx, by, s->linex);
- dodct(&fbdiff);
+ mode = 0; // mvd w/o mvd24
has_dc = 0;
+ memcpy(&b, &b_v00, sizeof(block_t));
- quantize(&fbdiff, &b, has_dc, *quant);
getblockpatterns(&b, &cbpybits, &cbpcbits, has_dc);
- mode = 0; // mvd w/o mvd24
swf_SetBits(tag,0,1); // COD
codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
codehuffman(tag, cbpy, cbpybits^15);
/* chrominance */
encode8x8(tag, b.u, has_dc, cbpcbits&2);
encode8x8(tag, b.v, has_dc, cbpcbits&1);
-
+
/* -- reconstruction -- */
dequantize(&b, 0, *quant);
-
doidct(&b);
for(t=0;t<64;t++) {
- b.y1[t] = truncate256(b.y1[t] + (int)fbold.y1[t]);
- b.y2[t] = truncate256(b.y2[t] + (int)fbold.y2[t]);
- b.y3[t] = truncate256(b.y3[t] + (int)fbold.y3[t]);
- b.y4[t] = truncate256(b.y4[t] + (int)fbold.y4[t]);
- b.u[t] = truncate256(b.u[t] + (int)fbold.u[t]);
- b.v[t] = truncate256(b.v[t] + (int)fbold.v[t]);
+ b.y1[t] = truncate256(b.y1[t] + (int)fbold_v00.y1[t]);
+ b.y2[t] = truncate256(b.y2[t] + (int)fbold_v00.y2[t]);
+ b.y3[t] = truncate256(b.y3[t] + (int)fbold_v00.y3[t]);
+ b.y4[t] = truncate256(b.y4[t] + (int)fbold_v00.y4[t]);
+ b.u[t] = truncate256(b.u[t] + (int)fbold_v00.u[t]);
+ b.v[t] = truncate256(b.v[t] + (int)fbold_v00.v[t]);
}
copyblock(s, s->current, &b, bx, by);
- return;
+ return bits_v00;
} else {
/* i block (mode=3) */
mode = 3;
has_dc = 1;
- dodct(&fb);
- quantize(&fb, &b, has_dc, *quant);
+ memcpy(&b, &b_i, sizeof(block_t));
+ //dodct(&fb);
+ //quantize(&fb, &b, has_dc, *quant);
getblockpatterns(&b, &cbpybits, &cbpcbits, has_dc);
swf_SetBits(tag,0,1); // COD
codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
/* chrominance */
encode8x8(tag, b.u, has_dc, cbpcbits&2);
encode8x8(tag, b.v, has_dc, cbpcbits&1);
-
+
+ /* -- reconstruction -- */
dequantize(&b, 1, *quant);
doidct(&b);
truncateblock(&b);
copyblock(s, s->current, &b, bx, by);
- return;
+ return bits_i;
}
exit(1);
swf_SetBits(tag, 0, 1); /* No extra info */
}
-void swf_SetVideoStreamIFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic)
+void swf_SetVideoStreamIFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
{
int bx, by, bbx, bby;
- int quant = 3;
+
+ if(quant<1) quant=1;
+ if(quant>31) quant=31;
writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_IFRAME);
bbx = (s->width+15)/16; //TODO: move bbx,bby into VIDEOSTREAM
bby = (s->height+15)/16;
- rgb2yuv(s->current, pic, s->linex, s->width, s->height);
+ rgb2yuv(s->current, pic, s->linex, s->olinex, s->width, s->height);
for(by=0;by<bby;by++)
{
memcpy(s->oldpic, s->current, s->width*s->height*sizeof(YUV));
}
-void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic)
+void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
{
int bx, by, bbx, bby;
- int quant = 3;
+
+ if(quant<1) quant=1;
+ if(quant>31) quant=31;
writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_PFRAME);
bbx = (s->width+15)/16;
bby = (s->height+15)/16;
- rgb2yuv(s->current, pic, s->linex, s->width, s->height);
+ rgb2yuv(s->current, pic, s->linex, s->olinex, s->width, s->height);
for(by=0;by<bby;by++)
{
}
}
+#ifdef MAIN
+#include "png.h"
int main(int argn, char*argv[])
{
int fi;
SWFPLACEOBJECT obj;
int width = 0;
int height = 0;
- int frames = 50;
+ int frames = 10;
int framerate = 29;
unsigned char*data;
- char* fname = "/home/kramm/pics/peppers.png";
+ char* fname = "/home/kramm/pics/lena.png";
VIDEOSTREAM stream;
double d = 1.0;
tag = swf_InsertTag(tag, ST_VIDEOFRAME);
swf_SetU16(tag, 33);
if(t==0)
- swf_SetVideoStreamIFrame(tag, &stream, pic2);
+ swf_SetVideoStreamIFrame(tag, &stream, pic2, 9);
else
- swf_SetVideoStreamPFrame(tag, &stream, pic2);
+ swf_SetVideoStreamPFrame(tag, &stream, pic2, 9);
tag = swf_InsertTag(tag, ST_PLACEOBJECT2);
swf_GetPlaceObject(0, &obj);
tag = swf_InsertTag(tag, ST_SHOWFRAME);
d-=0.005;
}
+
+ swf_VideoStreamClear(&stream);
tag = swf_InsertTag(tag, ST_END);
close(fi);
swf_FreeTags(&swf);
}
+#undef MAIN
+#endif
git.asbjorn.biz / swftools.git / blobdiff