X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fh.263%2Fswfvideo.c;h=957757256d8a29af0d57de0e86df95c590d7cfa2;hb=99603247eec927601be29e3cf8e66638b9f3827a;hp=a4c8df5b76b9f2b49b3cc9dfe745e1c5df06a8d9;hpb=b2db3d144daf9b6d3549ef219608ab73ded31fc0;p=swftools.git

diff --git a/lib/h.263/swfvideo.c b/lib/h.263/swfvideo.c
index a4c8df5..9577572 100644
--- a/lib/h.263/swfvideo.c
+++ b/lib/h.263/swfvideo.c
@@ -255,6 +255,7 @@ static void rgb2yuv(YUV*dest, RGBA*src, int dlinex, int slinex, int width, int h
 	    dest[y*dlinex+x].v = (r*0.500 + g*-0.419 + b*-0.0813 + 128.0);*/
 
 	    //dest[y*dlinex+x].y = 128;//(r*((int)( 0.299*256)) + g*((int)( 0.587*256)) + b*((int)( 0.114 *256)))>>8;
+
 	    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;
@@ -597,9 +598,15 @@ static int encode8x8(TAG*tag, int*bb, int has_dc, int has_tcoef)
 		bits += codehuffman(tag, rle, RLE_ESCAPE);
 		level=bb[pos];
 		/* table 14/h.263 */
+		if(!level || level<-127 || level>127) {
+		    fprintf(stderr, "Warning: Overflow- Level %d at pos %d\n", level, pos);
+		    if(level<-127) level=-127;
+		    if(level>127) level=127;
+		}
+
 		assert(level);
 		assert(level>=-127);
-		assert(level<=127);
+		assert(level<=127); //TODO: known to fail for pos=0 (with custom frames?)
 
 		swf_SetBits(tag, islast, 1);
 		swf_SetBits(tag, run, 6);
@@ -1058,9 +1065,9 @@ void prepareMVDBlock(VIDEOSTREAM*s, mvdblockdata_t*data, int bx, int by, block_t
 int writeMVDBlock(VIDEOSTREAM*s, TAG*tag, mvdblockdata_t*data)
 {
     int c = 0, y = 0;
-    /* mvd (0,0) block (mode=0) */
     int t;
     int has_dc=0; // mvd w/o mvd24
+    /* mvd (0,0) block (mode=0) */
     int mode = 0;
     int bx = data->bx;
     int by = data->by;
@@ -1232,6 +1239,38 @@ void swf_SetVideoStreamIFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
     s->frame++;
     memcpy(s->oldpic, s->current, s->width*s->height*sizeof(YUV));
 }
+void swf_SetVideoStreamBlackFrame(TAG*tag, VIDEOSTREAM*s)
+{
+    int bx, by;
+    int quant = 31;
+    int x,y;
+    s->quant = quant;
+
+    writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_IFRAME);
+
+    for(y=0;y<s->height;y++)
+    for(x=0;x<s->width;x++) {
+	s->current[y*s->width+x].y = 0;
+	s->current[y*s->width+x].u = 128;
+	s->current[y*s->width+x].v = 128;
+    }
+    for(x=0;x<16;x++)
+    for(y=0;y<16;y++) {
+	s->current[y*s->width+x].y = 64; 
+	s->current[y*s->width+x].u = 128; 
+	s->current[y*s->width+x].v = 128;
+    }
+
+    for(by=0;by<s->bby;by++)
+    {
+	for(bx=0;bx<s->bbx;bx++)
+	{
+	    encode_IFrame_block(tag, s, bx, by);
+	}
+    }
+    s->frame++;
+    memcpy(s->oldpic, s->current, s->width*s->height*sizeof(YUV));
+}
 
 void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
 {
@@ -1268,12 +1307,14 @@ void swf_SetVideoStreamPFrame(TAG*tag, VIDEOSTREAM*s, RGBA*pic, int quant)
 #endif
 }
 
-void swf_SetVideoStreamMover(TAG*tag, VIDEOSTREAM*s, signed char* movex, signed char* movey, int quant)
+void swf_SetVideoStreamMover(TAG*tag, VIDEOSTREAM*s, signed char* movex, signed char* movey, void**pictures, int quant)
 {
     int bx, by;
+    YUV pic[16*16];
 
     if(quant<1) quant=1;
     if(quant>31) quant=31;
+    s->quant = quant;
 
     writeHeader(tag, s->width, s->height, s->frame, quant, TYPE_PFRAME);
 
@@ -1284,32 +1325,63 @@ void swf_SetVideoStreamMover(TAG*tag, VIDEOSTREAM*s, signed char* movex, signed
     {
 	for(bx=0;bx<s->bbx;bx++)
 	{
-	    /* mvd (0,0) block (mode=0) */
-	    int mode = 0;
-	    int has_dc = 0;
-	    int cbpybits=0,cbpcbits=0;
 	    int predictmvdx=0, predictmvdy=0;
 	    int mvx=movex[by*s->bbx+bx];
 	    int mvy=movey[by*s->bbx+bx];
+	    void*picture = pictures?pictures[by*s->bbx+bx]:0;
     
 	    if(mvx<-32) mvx=-32;
 	    if(mvx>31) mvx=31;
 	    if(mvy<-32) mvy=-32;
 	    if(mvy>31) mvy=31;
 
-	    if(mvx == 0 && mvy == 0) {
+	    if(mvx == 0 && mvy == 0 && picture == 0) {
 		swf_SetBits(tag,1,1); // COD skip
 	    } else {
+		int mode = 0;
+		int has_dc=0;
+		int y=0,c=0;
+		block_t b;
+		block_t b2;
+		
 		swf_SetBits(tag,0,1); // COD
-		codehuffman(tag, mcbpc_inter, mode*4+cbpcbits);
-		codehuffman(tag, cbpy, cbpybits^15);
-	
-		/* vector */
-		predictmvd(s,bx,by,&predictmvdx,&predictmvdy);
-		codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, mvx, mvy, 0));
-		codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, mvx, mvy, 1));
-		s->mvdx[by*s->bbx+bx] = mvx;
-		s->mvdy[by*s->bbx+bx] = mvy;
+
+		if(mvx==0 && mvy==0 && picture) { // only picture
+		    mode = 3;
+		    has_dc = 1;
+		}
+
+		if(picture) {
+		    RGBA* picblock = (RGBA*)picture;
+		    rgb2yuv(pic, picblock,16,16,16,16);
+		    /* TODO: if has_dc!=1, subtract 128 from rgb values */
+		    getregion(&b, pic, 0,0,16);
+		    dodctandquant(&b, &b2, 1, s->quant);
+		    getblockpatterns(&b2, &y, &c, 1);
+		} else {
+		    y=0;c=0;
+		}
+
+		codehuffman(tag, mcbpc_inter, mode*4+c);
+		codehuffman(tag, cbpy, mode==3?y:y^15);
+		
+		if(mode < 3) {
+		    /* has motion vector */
+		    predictmvd(s,bx,by,&predictmvdx,&predictmvdy);
+		    codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, mvx, mvy, 0));
+		    codehuffman(tag, mvd, mvd2index(predictmvdx, predictmvdy, mvx, mvy, 1));
+		    s->mvdx[by*s->bbx+bx] = mvx;
+		    s->mvdy[by*s->bbx+bx] = mvy;
+		}
+
+		if(has_dc||y||c) {
+		    encode8x8(tag, b2.y1, has_dc, y&8);
+		    encode8x8(tag, b2.y2, has_dc, y&4);
+		    encode8x8(tag, b2.y3, has_dc, y&2);
+		    encode8x8(tag, b2.y4, has_dc, y&1);
+		    encode8x8(tag, b2.u, has_dc, c&2);
+		    encode8x8(tag, b2.v, has_dc, c&1);
+		}
 	    }
 	}
     }
@@ -1362,6 +1434,81 @@ void test_copy_diff()
 
 #ifdef MAIN
 #include "png.h"
+
+int compileSWFActionCode(const char *script, int version, void**data, int*len) {return 0;}
+
+void mkblack()
+{
+    SWF swf;
+    SWFPLACEOBJECT obj;
+    int frames = 88;
+    int width = 160;
+    int height = 112;
+    int x,y;
+    TAG*tag = 0;
+    RGBA rgb;
+    RGBA* pic = 0;
+    VIDEOSTREAM stream;
+   
+    pic = malloc(width*height*4);
+    memset(pic, 0, width*height*4);
+
+    memset(&swf,0,sizeof(SWF));
+    memset(&obj,0,sizeof(obj));
+
+    swf.fileVersion    = 6;
+    swf.frameRate      = 15*256;
+    swf.movieSize.xmax = 20*width;
+    swf.movieSize.ymax = 20*height;
+
+    swf.firstTag = swf_InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
+    tag = swf.firstTag;
+    rgb.r = 0x00;rgb.g = 0x30;rgb.b = 0xff;
+    swf_SetRGB(tag,&rgb);
+
+    tag = swf_InsertTag(tag, ST_DEFINEVIDEOSTREAM);
+    swf_SetU16(tag, 1);
+    swf_SetVideoStreamDefine(tag, &stream, frames, width, height);
+    stream.do_motion = 0;
+
+    for(y=0;y<height;y++)  {
+	for(x=0;x<width;x++) {
+	    int dx = x/16;
+	    int dy = y/16;
+
+	    pic[y*width+x].r = 0;
+	    pic[y*width+x].g = 0;
+	    pic[y*width+x].b = 0;
+	    pic[y*width+x].a = 0;
+	}
+    }
+    tag = swf_InsertTag(tag, ST_VIDEOFRAME);
+    swf_SetU16(tag, 1);
+    
+    swf_SetVideoStreamIFrame(tag, &stream, pic, 7);
+
+    tag = swf_InsertTag(tag, ST_PLACEOBJECT2);
+    swf_GetPlaceObject(0, &obj);
+    
+    obj.depth = 4;
+    obj.id = 1;
+    
+    swf_SetPlaceObject(tag,&obj);
+
+    tag = swf_InsertTag(tag, ST_SHOWFRAME);
+    
+    swf_VideoStreamClear(&stream);
+
+    tag = swf_InsertTag(tag, ST_END);
+
+    int fi = open("black.swf", O_WRONLY|O_CREAT|O_TRUNC, 0644);
+    if(swf_WriteSWC(fi,&swf)<0) {
+	fprintf(stderr,"WriteSWF() failed.\n");
+    }
+    close(fi);
+    swf_FreeTags(&swf);
+}
+
 int main(int argn, char*argv[])
 {
     int fi;
@@ -1384,6 +1531,8 @@ int main(int argn, char*argv[])
     test_copy_diff();
 #endif
 
+    mkblack();
+
     memset(&stream, 0, sizeof(stream));
 
     getPNG(fname, &width, &height, &data);
@@ -1412,7 +1561,7 @@ int main(int argn, char*argv[])
     swf_SetVideoStreamDefine(tag, &stream, frames, width, height);
     stream.do_motion = 0;
 
-    srand48(time(0));
+    //srand48(time(0));
 
     for(t=0;t<frames;t++)
     {
@@ -1429,7 +1578,13 @@ int main(int argn, char*argv[])
 		    pic2[y*width+x].g+=2;
 		    pic2[y*width+x].b+=2;
 		} else {
-		    pic2[y*width+x] = line[((int)xx)];
+		    //pic2[y*width+x] = line[((int)xx)];
+		    //pic2[y*width+x].r = lrand48();//line[((int)xx)];
+		    //pic2[y*width+x].g = lrand48();//line[((int)xx)];
+		    //pic2[y*width+x].b = lrand48();//line[((int)xx)];
+		    pic2[y*width+x].r = 0;
+		    pic2[y*width+x].g = 0;
+		    pic2[y*width+x].b = 0;
 		}
 		/*if(dx==16 && dy==16) 
 		    pic2[y*width+x] = pic[(y-16*16)*width+(x-16*16)];*/