#include <stdio.h>
#include <assert.h>
#include <math.h>
-#include "../lib/rfxswf.h"
-#include "png.h"
+#include "../rfxswf.h"
#include "h263tables.c"
-
-typedef struct _VIDEOSTREAM
-{
- int width;
- int height;
- RGBA*oldpic;
-} VIDEOSTREAM;
+#include "swfvideo.h"
void swf_SetVideoStreamDefine(TAG*tag, VIDEOSTREAM*stream, U16 frames, U16 width, U16 height)
{
swf_SetU8(tag, 1); /* smoothing on */
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;
stream->width = width;
stream->height = height;
- stream->oldpic = 0;
+ stream->bbx = width/16;
+ stream->bby = height/16;
+ stream->current = (YUV*)malloc(width*height*sizeof(YUV));
+ stream->oldpic = (YUV*)malloc(width*height*sizeof(YUV));
+ stream->mvdx = (int*)malloc(stream->bbx*stream->bby*sizeof(int));
+ stream->mvdy = (int*)malloc(stream->bbx*stream->bby*sizeof(int));
+ stream->do_motion = 0;
+
+ 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;
+ free(stream->mvdx);stream->mvdx=0;
+ free(stream->mvdy);stream->mvdy=0;
}
typedef struct _block_t
double v[64];
} fblock_t;
+static int zigzagtable[64] = {
+ 0, 1, 5, 6, 14, 15, 27, 28,
+ 2, 4, 7, 13, 16, 26, 29, 42,
+ 3, 8, 12, 17, 25, 30, 41, 43,
+ 9, 11, 18, 24, 31, 40, 44, 53,
+ 10, 19, 23, 32, 39, 45, 52, 54,
+ 20, 22, 33, 38, 46, 51, 55, 60,
+ 21, 34, 37, 47, 50, 56, 59, 61,
+ 35, 36, 48, 49, 57, 58, 62, 63};
+
static void fzigzag(double*src)
{
- int table[64] = {
- 0, 1, 5, 6, 14, 15, 27, 28,
- 2, 4, 7, 13, 16, 26, 29, 42,
- 3, 8, 12, 17, 25, 30, 41, 43,
- 9, 11, 18, 24, 31, 40, 44, 53,
- 10, 19, 23, 32, 39, 45, 52, 54,
- 20, 22, 33, 38, 46, 51, 55, 60,
- 21, 34, 37, 47, 50, 56, 59, 61,
- 35, 36, 48, 49, 57, 58, 62, 63};
double tmp[64];
int t;
for(t=0;t<64;t++) {
- ((int*)&tmp[table[t]])[0] = ((int*)&src[t])[0];
- ((int*)&tmp[table[t]])[1] = ((int*)&src[t])[1];
+ ((int*)&tmp[zigzagtable[t]])[0] = ((int*)&src[t])[0];
+ ((int*)&tmp[zigzagtable[t]])[1] = ((int*)&src[t])[1];
}
memcpy(src, tmp, sizeof(double)*64);
}
}
}
-static void getregion(fblock_t* bb, RGBA*pic, int bx, int by, int width, int height)
+static inline int truncate256(int a)
{
- RGBA*p1 = &pic[by*width*16+bx*16];
- RGBA*p2 = p1;
- int linex = width;
+ if(a>255) return 255;
+ if(a<0) return 0;
+ return a;
+}
+
+static void getregion(fblock_t* bb, YUV*pic, int posx, int posy, int linex)
+{
+ YUV*p1 = &pic[posy*linex+posx];
+ YUV*p2 = p1;
int y1=0, y2=0, y3=0, y4=0;
int u=0,v=0;
int x,y;
for(y=0;y<8;y++) {
for(x=0;x<8;x++) {
- double r,g,b;
- r = (p2[x*2].r + p2[x*2+1].r + p2[linex+x*2].r + p2[linex+x*2+1].r)/4.0;
- g = (p2[x*2].g + p2[x*2+1].g + p2[linex+x*2].g + p2[linex+x*2+1].g)/4.0;
- b = (p2[x*2].b + p2[x*2+1].b + p2[linex+x*2].b + p2[linex+x*2+1].b)/4.0;
- bb->u[u++] = (r*-0.169 + g*-0.332 + b*0.500 + 128.0);
- bb->v[v++] = (r*0.500 + g*-0.419 + b*-0.0813 + 128.0);
-
- r = p1[x].r; g = p1[x].g; b = p1[x].b;
- bb->y1[y1++] = (r*0.299 + g*0.587 + b*0.114);
- r = p1[x+8].r; g = p1[x+8].g; b = p1[x+8].b;
- bb->y2[y2++] = (r*0.299 + g*0.587 + b*0.114);
- r = p1[linex*8+x].r; g = p1[linex*8+x].g; b = p1[linex*8+x].b;
- bb->y3[y3++] = (r*0.299 + g*0.587 + b*0.114);
- r = p1[linex*8+x+8].r; g = p1[linex*8+x+8].g; b = p1[linex*8+x+8].b;
- bb->y4[y4++] = (r*0.299 + g*0.587 + b*0.114);
+ bb->u[u++] = (p2[x*2].u + p2[x*2+1].u + p2[linex+x*2].u + p2[linex+x*2+1].u)/4;
+ bb->v[v++] = (p2[x*2].v + p2[x*2+1].v + p2[linex+x*2].v + p2[linex+x*2+1].v)/4;
+ bb->y1[y1++] = p1[x].y;
+ bb->y2[y2++] = p1[x+8].y;
+ bb->y3[y3++] = p1[linex*8+x].y;
+ bb->y4[y4++] = p1[linex*8+x+8].y;
}
p1+=linex;
p2+=linex*2;
}
}
+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++) {
+ 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;
+ }
+ }
+}
+static void copyregion(VIDEOSTREAM*s, YUV*dest, YUV*src, int bx, int by)
+{
+ YUV*p1 = &src[by*s->linex*16+bx*16];
+ YUV*p2 = &dest[by*s->linex*16+bx*16];
+ int y;
+ for(y=0;y<16;y++) {
+ memcpy(p1, p2, 16*sizeof(YUV));
+ p1+=s->linex;p2+=s->linex;
+ }
+}
+
+static void yuv2rgb(RGBA*dest, YUV*src, int linex, int width, int height)
+{
+ int x,y;
+ for(y=0;y<height;y++) {
+ for(x=0;x<width;x++) {
+ int u,v,yy;
+ u = src[y*linex+x].u;
+ v = src[y*linex+x].v;
+ yy = src[y*linex+x].y;
+ dest[y*linex+x].r = truncate256(yy + ((360*(v-128))>>8));
+ dest[y*linex+x].g = truncate256(yy - ((88*(u-128)+183*(v-128))>>8));
+ dest[y*linex+x].b = truncate256(yy + ((455 * (u-128))>>8));
+ }
+ }
+}
+static void copyblock(VIDEOSTREAM*s, YUV*dest, block_t*b, int bx, int by)
+{
+ YUV*p1 = &dest[(by*16)*s->linex+bx*16];
+ YUV*p2 = &dest[(by*16+8)*s->linex+bx*16];
+ int x,y;
+ for(y=0;y<8;y++) {
+ for(x=0;x<8;x++) {
+ int u,v,yy;
+ p1[x+0].u = b->u[(y/2)*8+(x/2)];
+ p1[x+0].v = b->v[(y/2)*8+(x/2)];
+ p1[x+0].y = b->y1[y*8+x];
+ p1[x+8].u = b->u[(y/2)*8+(x/2)+4];
+ p1[x+8].v = b->v[(y/2)*8+(x/2)+4];
+ p1[x+8].y = b->y2[y*8+x];
+ p2[x+0].u = b->u[(y/2+4)*8+(x/2)];
+ p2[x+0].v = b->v[(y/2+4)*8+(x/2)];
+ p2[x+0].y = b->y3[y*8+x];
+ p2[x+8].u = b->u[(y/2+4)*8+(x/2)+4];
+ p2[x+8].v = b->v[(y/2+4)*8+(x/2)+4];
+ p2[x+8].y = b->y4[y*8+x];
+ }
+ p1+=s->linex;
+ p2+=s->linex;
+ }
+}
-static int valtodc(int val)
+static int compareregions(VIDEOSTREAM*s, int bx, int by)
+{
+ int linex = s->width;
+ YUV*p1 = &s->current[by*linex*16+bx*16];
+ YUV*p2 = &s->oldpic[by*linex*16+bx*16];
+ int diff = 0;
+ int x,y;
+ for(y=0;y<16;y++) {
+ for(x=0;x<16;x++) {
+ YUV*m = &p1[x];
+ YUV*n = &p2[x];
+ int y = m->y - n->y;
+ int u = m->u - n->u;
+ int v = m->v - n->v;
+ diff += y*y+(u*u+v*v)/4;
+ }
+ p1+=linex;
+ p2+=linex;
+ }
+ return diff/256;
+}
+
+static inline int valtodc(int val)
{
assert(val>=0);
/* table 12/h.263 */
- val+=4; //round
+ //val+=4; //round
val/=8;
/* TODO: what to do for zero values? skip the block? */
if(val==0)
return 254;
return val;
}
+static int dctoval(int dc)
+{
+ int val;
+ assert(dc>0);
+ assert(dc!=128);
+ assert(dc<256);
+ /* table 12/h.263 */
+ val = dc*8;
+ if(val == 255*8)
+ val = 128*8;
+ return val;
+}
-static void codehuffman(TAG*tag, struct huffcode*table, int index)
+static int codehuffman(TAG*tag, struct huffcode*table, int index)
{
/* TODO: !optimize! */
int i=0;
swf_SetBits(tag, 1, 1);
i++;
}
+ return i;
}
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];
- //val = (quant*(2*level+1)-1)+quant&1
-/* if(quant&1) {
- dest[t] = (dest[t]/quant - 1)/2;
- } else {
- dest[t] = ((dest[t]+1)/quant - 1)/2;
- }*/
- //dest[t] = (dest[t]/quant-1)/2;
- dest[t] = dest[t]/(quant*2);
+ //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] = (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;
+ }
+}
+
+static void dequantize8x8(int*b, int has_dc, int quant)
+{
+ int t,pos=0;
+ if(has_dc) {
+ b[0] = dctoval(b[0]); //DC
+ pos++;
+ }
+ for(t=pos;t<64;t++) {
+ if(b[t]) {
+ int sign = 0;
+ if(b[t]<0) {
+ b[t] = -b[t];
+ sign = 1;
+ }
+
+ if(quant&1) {
+ b[t] = quant*(2*b[t]+1); //-7,8,24,40
+ } else {
+ b[t] = quant*(2*b[t]+1)-1; //-8,7,23,39
+ }
+
+ if(sign)
+ b[t] = -b[t];
+ }
+
+ /* paragraph 6.2.2, "clipping of reconstruction levels": */
+ if(b[t]>2047) b[t]=2047;
+ if(b[t]<-2048) b[t]=-2048;
}
}
{
int t;
int pos=0;
- int range=2; /*TODO: should be a global parameter */
if(has_dc)
pos++;
for(t=pos;t<64;t++) {
- if(b[t]<=-range || b[t]>=range)
+ if(b[t])
return 1;
}
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) {
level=bb[pos];
/* table 14/h.263 */
assert(level);
- if(level<-127) level = -127;
- if(level>127) level = 127;
+ assert(level>=-127);
+ assert(level<=127);
swf_SetBits(tag, islast, 1);
swf_SetBits(tag, run, 6);
- swf_SetBits(tag, level, 8); //fixme
+ swf_SetBits(tag, level, 8); //FIXME: fixme??
}
if(islast)
break;
pos++;
}
-
- //codehuffman(tag, rle, 58);
- //swf_SetBits(tag, 1, 1); //sign
}
}
static void dodct(fblock_t*fb)
{
+ int t;
dct(fb->y1); dct(fb->y2); dct(fb->y3); dct(fb->y4);
dct(fb->u); dct(fb->v);
fzigzag(fb->y1);
fzigzag(fb->v);
}
+static void doidct(block_t*b)
+{
+ fblock_t fb;
+ int t;
+ for(t=0;t<64;t++) {
+ fb.y1[t] = b->y1[zigzagtable[t]];
+ fb.y2[t] = b->y2[zigzagtable[t]];
+ fb.y3[t] = b->y3[zigzagtable[t]];
+ fb.y4[t] = b->y4[zigzagtable[t]];
+ fb.u[t] = b->u[zigzagtable[t]];
+ fb.v[t] = b->v[zigzagtable[t]];
+ }
+ idct(fb.y1); idct(fb.y2); idct(fb.y3); idct(fb.y4);
+ idct(fb.u); idct(fb.v);
+ for(t=0;t<64;t++) {
+ b->y1[t] = fb.y1[t];
+ b->y2[t] = fb.y2[t];
+ b->y3[t] = fb.y3[t];
+ b->y4[t] = fb.y4[t];
+ b->u[t] = fb.u[t];
+ b->v[t] = fb.v[t];
+ }
+}
+static void truncateblock(block_t*b)
+{
+ int t;
+ for(t=0;t<64;t++) {
+ b->y1[t] = truncate256(b->y1[t]);
+ b->y2[t] = truncate256(b->y2[t]);
+ b->y3[t] = truncate256(b->y3[t]);
+ b->y4[t] = truncate256(b->y4[t]);
+ b->u[t] = truncate256(b->u[t]);
+ b->v[t] = truncate256(b->v[t]);
+ }
+}
+
static void quantize(fblock_t*fb, block_t*b, int has_dc, int quant)
{
- quantize8x8(fb->y1,b->y1,has_dc,quant);
- quantize8x8(fb->y2,b->y2,has_dc,quant);
- quantize8x8(fb->y3,b->y3,has_dc,quant);
- quantize8x8(fb->y4,b->y4,has_dc,quant);
- quantize8x8(fb->u,b->u,has_dc,quant);
- quantize8x8(fb->v,b->v,has_dc,quant);
+ quantize8x8(fb->y1, b->y1, has_dc, quant);
+ quantize8x8(fb->y2, b->y2, has_dc, quant);
+ quantize8x8(fb->y3, b->y3, has_dc, quant);
+ quantize8x8(fb->y4, b->y4, has_dc, quant);
+ quantize8x8(fb->u, b->u, has_dc, quant);
+ quantize8x8(fb->v, b->v, has_dc, quant);
+}
+static void dequantize(block_t*b, int has_dc, int quant)
+{
+ dequantize8x8(b->y1, has_dc, quant);
+ dequantize8x8(b->y2, has_dc, quant);
+ dequantize8x8(b->y3, has_dc, quant);
+ dequantize8x8(b->y4, has_dc, quant);
+ dequantize8x8(b->u, has_dc, quant);
+ dequantize8x8(b->v, has_dc, quant);
}
static void getblockpatterns(block_t*b, int*cbpybits,int*cbpcbits, int has_dc)
*dquant = 0;
}
-void encode_blockI(TAG*tag, RGBA*pic, int bx, int by, int width, int height, int*quant)
+static void encode_blockI(TAG*tag, VIDEOSTREAM*s, int bx, int by, int*quant)
{
fblock_t fb;
block_t b;
int dquant=0;
int cbpcbits = 0, cbpybits=0;
- getregion(&fb, pic, bx, by, width, height);
+ getregion(&fb, s->current, bx*16, by*16, s->width);
dodct(&fb);
change_quant(*quant, &dquant);
*quant+=dquant;
-
quantize(&fb, &b, 1, *quant);
+
+ //decode_blockI(s, &b, bx, by);
+
getblockpatterns(&b, &cbpybits, &cbpcbits, 1);
if(dquant) {
/* chrominance */
encode8x8(tag, b.u, 1, cbpcbits&2);
encode8x8(tag, b.v, 1, cbpcbits&1);
+
+ /* reconstruct */
+ dequantize(&b, 1, *quant);
+ doidct(&b);
+ truncateblock(&b);
+ copyblock(s, s->current, &b, bx, by);
}
-void encode_blockP(TAG*tag, RGBA*pic, int bx, int by, int width, int height, int*quant)
+static void yuvdiff(fblock_t*a, fblock_t*b)
+{
+ int t;
+ for(t=0;t<64;t++) {
+ a->y1[t] = (a->y1[t] - b->y1[t]);
+ a->y2[t] = (a->y2[t] - b->y2[t]);
+ a->y3[t] = (a->y3[t] - b->y3[t]);
+ a->y4[t] = (a->y4[t] - b->y4[t]);
+ a->u[t] = (a->u[t] - b->u[t]);
+ a->v[t] = (a->v[t] - b->v[t]);
+ }
+}
+
+static void predictmvd(VIDEOSTREAM*s, int bx, int by, int*px, int*py)
+{
+ int i1,i2;
+ int x1,y1,x2,y2,x3,y3;
+ int x4,y4,p;
+ if(bx) {x1=s->mvdx[by*s->bbx+bx-1];
+ y1=s->mvdy[by*s->bbx+bx-1];
+ } else {x1=y1=0;}
+
+ if(by) {x2=s->mvdx[(by-1)*s->bbx+bx];
+ y2=s->mvdy[(by-1)*s->bbx+bx];
+ if(bx<s->bbx-1) {
+ x3=s->mvdx[(by-1)*s->bbx+bx+1];
+ y3=s->mvdy[(by-1)*s->bbx+bx+1];
+ } else {
+ x3=y3=0;
+ }
+ }
+ else {x2=x3=x1;y2=y3=y1;}
+
+ if((x1 <= x2 && x2 <= x3) ||
+ (x3 <= x2 && x2 <= x1)) {
+ x4=x2;
+ } else if((x2 <= x1 && x1 <= x3) ||
+ (x3 <= x1 && x1 <= x2)) {
+ x4=x1;
+ } else if((x1 <= x3 && x3 <= x2) ||
+ (x2 <= x3 && x3 <= x1)) {
+ x4=x3;
+ }
+
+ if((y1 <= y2 && y2 <= y3) ||
+ (y3 <= y2 && y2 <= y1)) {
+ y4=y2;
+ } else if((y2 <= y1 && y1 <= y3) ||
+ (y3 <= y1 && y1 <= y2)) {
+ y4=y1;
+ } else if((y1 <= y3 && y3 <= y2) ||
+ (y2 <= y3 && y3 <= y1)) {
+ y4=y3;
+ }
+
+ *px = x4;
+ *py = y4;
+ assert((x4>=-32 && x4<=31) && (y4>=-32 && y4<=31));
+}
+
+static inline int mvd2index(int px, int py, int x, int y, int xy)
+{
+ assert((x>=-32 && x<=31) && (y>=-32 && y<=31));
+ assert((x&1)==0 && (y&1)==0);//for now
+ assert((x&2)==0 && (y&2)==0);//for now(2)
+
+ x-=px;
+ y-=py;
+
+ if(xy)
+ x=y;
+ x+=32;
+
+ /* (x&63) */
+ if(x>63)
+ x-=64;
+ if(x<0)
+ x+=64;
+
+ assert(x>=0 && x<64);
+ return x;
+}
+
+static int encode_blockP(TAG*tag, VIDEOSTREAM*s, int bx, int by, int*quant)
{
fblock_t fb;
block_t b;
int has_dc=1;
int mode = 0;
int cbpcbits = 0, cbpybits=0;
+ int diff;
+ int predictmvdx;
+ int predictmvdy;
+
+ block_t b_i;
+ int bits_i;
+
+ fblock_t fbold_v00;
+ block_t b_v00;
+ int bits_v00 = 65535;
+ int x_v00=0;
+ int y_v00=0;
+
+ diff = compareregions(s, bx, by);
+ if(diff < 20 /*TODO: should be a parameter- good values are between 32 and 48 */) {
+ swf_SetBits(tag, 1,1); /* cod=1, block skipped */
+ /* copy the region from the last frame so that we have a complete reconstruction */
+ copyregion(s, s->current, s->oldpic, bx, by);
+ return 1;
+ }
- getregion(&fb, pic, bx, by, width, height);
- dodct(&fb);
+ predictmvd(s,bx,by,&predictmvdx,&predictmvdy);
+ getregion(&fb, s->current, bx*16, by*16, s->width);
+
+ { /* 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);
+ }
- change_quant(*quant, &dquant);
- *quant += dquant;
+ if(bx&&by&&(bx<s->bbx-1)&&(by<s->bby-1))
+ { /* consider mvd(x,y)-block */
+ fblock_t fbdiff;
+ int y,c;
+
+ x_v00=0;
+ y_v00=0;
+
+ if(s->do_motion) {
+ int hx,hy;
+ int bestx=0,besty=0,bestbits=65536;
+
+ for(hx=-8;hx<8;hx+=4)
+ for(hy=-8;hy<8;hy+=4)
+ {
+ block_t b;
+ fblock_t fbold;
+ int bits = 0;
+ memcpy(&fbdiff, &fb, sizeof(fblock_t));
+ getregion(&fbold, s->oldpic, bx*16+hx/2, by*16+hy/2, s->linex);
+ yuvdiff(&fbdiff, &fbold);
+ dodct(&fbdiff);
+ quantize(&fbdiff, &b, 0, *quant);
+ bits += coefbits8x8(b.y1, 0);
+ bits += coefbits8x8(b.y2, 0);
+ bits += coefbits8x8(b.y3, 0);
+ bits += coefbits8x8(b.y4, 0);
+ bits += coefbits8x8(b.u, 0);
+ bits += coefbits8x8(b.v, 0);
+ if(bits<bestbits) {
+ bestbits = bits;
+ bestx = hx;
+ besty = hy;
+ }
+ }
+ x_v00 = bestx;
+ y_v00 = besty;
+ }
- quantize(&fb, &b, has_dc, *quant);
+ memcpy(&fbdiff, &fb, sizeof(fblock_t));
+ getregion(&fbold_v00, s->oldpic, bx*16+x_v00/2, by*16+y_v00/2, 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[mvd2index(predictmvdx, predictmvdy, x_v00, y_v00, 0)].len; // (0,0)
+ bits_v00 += mvd[mvd2index(predictmvdx, predictmvdy, x_v00, y_v00, 1)].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;
+ mode = 0; // mvd w/o mvd24
+ has_dc = 0;
+ memcpy(&b, &b_v00, sizeof(block_t));
+
+ getblockpatterns(&b, &cbpybits, &cbpcbits, has_dc);
+ swf_SetBits(tag,0,1); // COD
+ codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
+ codehuffman(tag, cbpy, cbpybits^15);
+
+ /* vector */
+ codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, x_v00, y_v00, 0));
+ codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, x_v00, y_v00, 1));
+ s->mvdx[by*s->bbx+bx] = x_v00;
+ s->mvdy[by*s->bbx+bx] = y_v00;
+
+ /* luminance */
+ encode8x8(tag, b.y1, has_dc, cbpybits&8);
+ encode8x8(tag, b.y2, has_dc, cbpybits&4);
+ encode8x8(tag, b.y3, has_dc, cbpybits&2);
+ encode8x8(tag, b.y4, has_dc, cbpybits&1);
+
+ /* 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_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 bits_v00;
+ } else {
+ /* i block (mode=3) */
+ mode = 3;
+ has_dc = 1;
+ memcpy(&b, &b_i, sizeof(block_t));
+ getblockpatterns(&b, &cbpybits, &cbpcbits, has_dc);
+ swf_SetBits(tag,0,1); // COD
+ codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
+ codehuffman(tag, cbpy, cbpybits);
+
+ /* luminance */
+ encode8x8(tag, b.y1, has_dc, cbpybits&8);
+ encode8x8(tag, b.y2, has_dc, cbpybits&4);
+ encode8x8(tag, b.y3, has_dc, cbpybits&2);
+ encode8x8(tag, b.y4, has_dc, cbpybits&1);
+
+ /* 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 bits_i;
+ }
+ exit(1);
+#if 0
+ dodct(&fb);
+ quantize(&fb, &b, has_dc, *quant);
getblockpatterns(&b, &cbpybits, &cbpcbits, has_dc);
if(!dquant && has_mvd && !has_mvd24 && !has_dc) mode = 0;
codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
codehuffman(tag, cbpy, (mode==3 || mode==4)?cbpybits:cbpybits^15);
- if(!bx&&!by) {
- printf("cbpcbits: %d\n", cbpcbits);
- printf("cbpybits: %d\n", cbpybits);
- }
-
if(dquant) {
setQuant(tag, dquant);
}
if(has_mvd) {
+ /* 0,0 */
+ codehuffman(tag, mvd, 32);
+ codehuffman(tag, mvd, 32);
}
if(has_mvd24) {
}
/* chrominance */
encode8x8(tag, b.u, has_dc, cbpcbits&2);
encode8x8(tag, b.v, has_dc, cbpcbits&1);
+#endif
}
#define TYPE_IFRAME 0
swf_SetBits(tag, type, 2); /* I-Frame or P-Frame */
swf_SetBits(tag, 0, 1); /* No deblock filter */
+ assert(quant>0);
swf_SetBits(tag, quant, 5); /* quantizer (1-31), may be updated later on*/
swf_SetBits(tag, 0, 1); /* No extra info */
}
-void swf_SetVideoStreamIFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, U16 width, U16 height, int frame)
+int stat_qdiff(double*b1, double*b2)
{
- int bx, by, bbx, bby;
- int quant = 7;
+ int x;
+ double diff=0;
+ for(x=0;x<64;x++) {
+ double y1 = b1[x] - b2[x];
+ diff += y1*y1;
+ }
+ return (int)(diff/64);
+}
- /* TODO: width not divisible by 16 will get us in trouble */
- width=width&~15; height=height&~15;
+int stat_absdiff(double*b1, double*b2)
+{
+ int x;
+ double diff=0;
+ for(x=0;x<64;x++) {
+ double y1 = b1[x] - b2[x];
+ diff += fabs(y1);
+ }
+ return (int)(diff/64);
+}
+
+int stat_absfreq(double*b1, double*b2)
+{
+ int x;
+ double diff=0;
+ double d1[64],d2[64];
+ memcpy(&d1, b1, 64*sizeof(double));
+ dct(d1);
+ memcpy(&d2, b2, 64*sizeof(double));
+ dct(d2);
+ for(x=0;x<64;x++) {
+ double y1 = d1[x] - d2[x];
+ diff += fabs(y1);
+ }
+ return (int)(diff/64);
+}
+
+int stat_qfreq(double*b1, double*b2)
+{
+ int x;
+ double diff=0;
+ double d1[64],d2[64];
+ memcpy(&d1, b1, 64*sizeof(double));
+ dct(d1);
+ memcpy(&d2, b2, 64*sizeof(double));
+ dct(d2);
+ for(x=0;x<64;x++) {
+ double y1 = d1[x] - d2[x];
+ diff += y1*y1;
+ }
+ return (int)(diff/64);
+}
- writeHeader(tag, width, height, frame, quant, TYPE_IFRAME);
+int stat_nonnull(double*b1, double*b2)
+{
+ int x;
+ int diff=0;
+ double d1[64],d2[64];
+ memcpy(&d1, b1, 64*sizeof(double));
+ dct(d1);
+ memcpy(&d2, b2, 64*sizeof(double));
+ dct(d2);
+ for(x=0;x<64;x++) {
+ int y1 = (int)((d1[x] - d2[x])/9);
+ if(y1)
+ diff++;
+ }
+ return diff;
+}
+
+void stat_filter(FILE*fi, double*d1, double*d2)
+{
+ int x,y,xx,yy,b;
+ for(b=3;b>=0;b--) {
+ int d = 1<<b;
+ double diff=0;
+ for(x=0;x<8;x+=d)
+ for(y=0;y<8;y+=d)
+ {
+ double add1=0,add2=0;
+ for(xx=x;xx<x+d;xx++)
+ for(yy=y;yy<y+d;yy++)
+ {
+ add1 += d1[yy*8+xx];
+ add2 += d2[yy*8+xx];
+ }
+ diff += fabs(add1-add2);
+ }
+ fprintf(fi, "\t%d",(int)(diff/64));
+ }
+}
+
+void qstat_filter(FILE*fi, double*d1, double*d2)
+{
+ int x,y,xx,yy,b;
+ for(b=3;b>=0;b--) {
+ int d = 1<<b;
+ double diff=0;
+ for(x=0;x<8;x+=d)
+ for(y=0;y<8;y+=d)
+ {
+ double add1=0,add2=0;
+ for(xx=x;xx<x+d;xx++)
+ for(yy=y;yy<y+d;yy++)
+ {
+ add1 += d1[yy*8+xx];
+ add2 += d2[yy*8+xx];
+ }
+ diff += (add1-add2)*(add1-add2);
+ }
+ fprintf(fi, "\t%d",(int)(diff/64));
+ }
+}
- bbx = (width+15)/16;
- bby = (height+15)/16;
+void qqstat_filter(FILE*fi, double*d1, double*d2)
+{
+ int x,y,xx,yy,b;
+ for(b=3;b>=0;b--) {
+ int d = 1<<b;
+ double diff=0;
+ for(x=0;x<8;x+=d)
+ for(y=0;y<8;y+=d)
+ {
+ double add1=0,add2=0;
+ for(xx=x;xx<x+d;xx++)
+ for(yy=y;yy<y+d;yy++)
+ {
+ add1 += d1[yy*8+xx]*d1[yy*8+xx];
+ add2 += d2[yy*8+xx]*d2[yy*8+xx];
+ }
+ diff += fabs(add1-add2);
+ }
+ fprintf(fi, "\t%d",(int)(diff/64));
+ }
+}
- for(by=0;by<bby;by++)
+void stat(FILE*fi, int*vals, double*yold, double*ynew)
+{
+ int t;
+ int bits = coefbits8x8(vals, 0);
+ fprintf(fi, "%d\t%d\t%d\t%d\t%d\t%d", bits,
+ stat_nonnull(ynew, yold),
+ stat_qdiff(ynew,yold),
+ stat_absdiff(ynew,yold),
+ stat_absfreq(ynew,yold),
+ stat_qfreq(ynew,yold));
+ stat_filter(fi, ynew, yold);
+ qqstat_filter(fi, ynew, yold);
+ fprintf(fi, "\n");
+}
+
+void dostat(VIDEOSTREAM*s)
+{
+ int bx,by,bx2,by2;
+ int quant = 9;
+ int num = 0;
+ FILE*fi = fopen("mvd.dat", "wb");
+ fprintf(fi, "bits\tnonnull\tqdiff\tabsdiff\tabsfreq\tqfreq\tf1\tf2\tf4\tf8\tqf1\tqf2\tqf4\tqf8\n");
+ for(by=0;by<s->bby;by++)
+ for(bx=0;bx<s->bbx;bx++)
{
- for(bx=0;bx<bbx;bx++)
+ for(by2=0;by2<s->bby;by2++)
+ for(bx2=0;bx2<bx;bx2++)
{
- encode_blockI(tag, pic, bx, by, width, height, &quant);
+ fblock_t fbnew,fbdiff,fbold;
+ block_t b;
+ int t, y,c,bits;
+ getregion(&fbnew, s->current, bx*16, by*16, s->linex);
+ memcpy(&fbdiff, &fbnew, sizeof(fblock_t));
+ getregion(&fbold, s->current, bx2*16, by2*16, s->linex);
+ yuvdiff(&fbdiff, &fbold);
+ dodct(&fbdiff);
+ quantize(&fbdiff, &b, 0, quant);
+
+ stat(fi, b.y1, fbnew.y1, fbold.y1);
+ stat(fi, b.y2, fbnew.y2, fbold.y2);
+ stat(fi, b.y3, fbnew.y3, fbold.y3);
+ stat(fi, b.y4, fbnew.y4, fbold.y4);
+ stat(fi, b.u, fbnew.u, fbold.u);
+ stat(fi, b.v, fbnew.v, fbold.v);
+
+ num++;
+ if(num==1000) {
+ fclose(fi);
+ exit(7);
+ }
}
+ printf("%d\n", num);fflush(stdout);
}
+ fclose(fi);
+ exit(7);
}
-void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, U16 width, U16 height, int frame)
+void swf_SetVideoStreamIFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
{
- int bx, by, bbx, bby;
- int quant = 7;
+ int bx, by;
- /* TODO: width not divisible by 16 will get us in trouble */
- width=width&~15; height=height&~15;
+ if(quant<1) quant=1;
+ if(quant>31) quant=31;
- writeHeader(tag, width, height, frame, quant, TYPE_PFRAME);
+ writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_IFRAME);
- bbx = (width+15)/16;
- bby = (height+15)/16;
+ rgb2yuv(s->current, pic, s->linex, s->olinex, s->width, s->height);
- for(by=0;by<bby;by++)
+ //dostat(s);
+
+ for(by=0;by<s->bby;by++)
{
- for(bx=0;bx<bbx;bx++)
+ for(bx=0;bx<s->bbx;bx++)
{
- encode_blockP(tag, pic, bx, by, width, height, &quant);
+ encode_blockI(tag, s, bx, by, &quant);
}
}
+ s->frame++;
+ memcpy(s->oldpic, s->current, s->width*s->height*sizeof(YUV));
}
+void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
+{
+ int bx, by;
+
+ if(quant<1) quant=1;
+ if(quant>31) quant=31;
+
+ writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_PFRAME);
+
+ rgb2yuv(s->current, pic, s->linex, s->olinex, s->width, s->height);
+ memset(s->mvdx, 0, s->bbx*s->bby*sizeof(int));
+ memset(s->mvdy, 0, s->bbx*s->bby*sizeof(int));
+
+ for(by=0;by<s->bby;by++)
+ {
+ for(bx=0;bx<s->bbx;bx++)
+ {
+ encode_blockP(tag, s, bx, by, &quant);
+ }
+ }
+ s->frame++;
+ memcpy(s->oldpic, s->current, s->width*s->height*sizeof(YUV));
+#ifdef MAIN
+ {
+ int t;
+ FILE*fi = fopen("test.ppm", "wb");
+ yuv2rgb(pic, s->current, s->linex, s->width, s->height);
+ fprintf(fi, "P6\n%d %d\n255\n", s->width, s->height);
+ for(t=0;t<s->width*s->height;t++)
+ {
+ fwrite(&pic[t].r, 1, 1, fi);
+ fwrite(&pic[t].g, 1, 1, fi);
+ fwrite(&pic[t].b, 1, 1, fi);
+ }
+ fclose(fi);
+ }
+#endif
+}
+
+#ifdef MAIN
+#include "png.h"
int main(int argn, char*argv[])
{
int fi;
int t;
SWF swf;
TAG * tag;
- RGBA* pic, rgb;
+ RGBA* pic, *pic2, rgb;
SWFPLACEOBJECT obj;
int width = 0;
int height = 0;
- int frames = 2;
+ int frames = 50;
+ int framerate = 29;
unsigned char*data;
char* fname = "/home/kramm/pics/peppers.png";
VIDEOSTREAM stream;
+ double d = 1.0;
memset(&stream, 0, sizeof(stream));
getPNG(fname, &width, &height, &data);
pic = (RGBA*)malloc(width*height*sizeof(RGBA));
+ pic2 = (RGBA*)malloc(width*height*sizeof(RGBA));
memcpy(pic, data, width*height*sizeof(RGBA));
free(data);
memset(&obj,0,sizeof(obj));
swf.fileVersion = 6;
- swf.frameRate = 29*256;
+ swf.frameRate = framerate*256;
swf.movieSize.xmax = 20*width;
swf.movieSize.ymax = 20*height;
tag = swf_InsertTag(tag, ST_DEFINEVIDEOSTREAM);
swf_SetU16(tag, 33);
swf_SetVideoStreamDefine(tag, &stream, frames, width, height);
+ stream.do_motion = 1;
for(t=0;t<frames;t++)
{
+ int x,y;
+ double xx,yy;
+ for(y=0,yy=0;y<height;y++,yy+=d) {
+ RGBA*line = &pic[((int)yy)*width];
+ for(x=0,xx=0;x<width;x++,xx+=d) {
+ pic2[y*width+x] = line[((int)xx)];
+ }
+ }
+ printf("frame:%d\n", t);fflush(stdout);
+
tag = swf_InsertTag(tag, ST_VIDEOFRAME);
swf_SetU16(tag, 33);
if(t==0)
- swf_SetVideoStreamIFrame(tag, &stream, pic, width, height, t);
+ swf_SetVideoStreamIFrame(tag, &stream, pic2, 9);
else
- swf_SetVideoStreamPFrame(tag, &stream, pic, width, height, t);
+ swf_SetVideoStreamPFrame(tag, &stream, pic2, 9);
tag = swf_InsertTag(tag, ST_PLACEOBJECT2);
swf_GetPlaceObject(0, &obj);
swf_SetPlaceObject(tag,&obj);
tag = swf_InsertTag(tag, ST_SHOWFRAME);
+ d-=0.005;
}
+
+ swf_VideoStreamClear(&stream);
tag = swf_InsertTag(tag, ST_END);
fi = open("video3.swf", O_WRONLY|O_CREAT|O_TRUNC, 0644);
- if(swf_WriteSWF(fi,&swf)<0) {
+ if(swf_WriteSWC(fi,&swf)<0) {
fprintf(stderr,"WriteSWF() failed.\n");
}
close(fi);
swf_FreeTags(&swf);
}
+#undef MAIN
+#endif
git.asbjorn.biz / swftools.git / blobdiff