From 655b9b4e4632624b879940582839c192dc492769 Mon Sep 17 00:00:00 2001 From: kramm Date: Thu, 8 May 2003 13:57:52 +0000 Subject: [PATCH] added truncation of levels. --- lib/h.263/swfvideo.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/lib/h.263/swfvideo.c b/lib/h.263/swfvideo.c index 679d0b4..e8b420d 100644 --- a/lib/h.263/swfvideo.c +++ b/lib/h.263/swfvideo.c @@ -251,7 +251,10 @@ static void dct2(int*src, int*dest) innerdct(a,b,cc); } for(t=0;t<64;t++) { - dest[zigzagtable[t]] = (int)(tmp2[t]); + int v = (int)(tmp2[t]); + if(v>127) v=127; + if(v<-127) v=-127; + dest[zigzagtable[t]] = v; } } @@ -936,6 +939,9 @@ static void predictmvd(VIDEOSTREAM*s, int bx, int by, int*px, int*py) } else if((x1 <= x3 && x3 <= x2) || (x2 <= x3 && x3 <= x1)) { x4=x3; + } else { + x4=0; + assert(x4); } if((y1 <= y2 && y2 <= y3) || @@ -947,6 +953,9 @@ static void predictmvd(VIDEOSTREAM*s, int bx, int by, int*px, int*py) } else if((y1 <= y3 && y3 <= y2) || (y2 <= y3 && y3 <= y1)) { y4=y3; + } else { + y4=0; + assert(y4); } *px = x4; @@ -1042,8 +1051,8 @@ static int encode_blockP(TAG*tag, VIDEOSTREAM*s, int bx, int by, int*quant) if(s->do_motion) { int hx,hy; int bestx=0,besty=0,bestbits=65536; - int startx=-2,endx=2; - int starty=-2,endy=2; + int startx=-31,endx=32; + int starty=-31,endy=32; if(!bx) startx=0; if(!by) starty=0; -- 1.7.10.4