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Round height or width to valid values when doing automatic calculation. 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6747 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
kmkaplan 2002-07-18 14:06:32 +00:00
parent 4a4263763d
commit e2e5f63009
1 changed files with 18 additions and 2 deletions
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20
libmpcodecs/vf_scale.c
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@ -103,13 +103,29 @@ static int config(struct vf_instance_s* vf,
}
// calculate the missing parameters:
switch(best) {
case IMGFMT_YUY2: /* YUY2 needs w rounded to 2 */
if(vf->priv->w==-3) vf->priv->w=(vf->priv->h*width/height+1)&~1; else
if(vf->priv->w==-2) vf->priv->w=(vf->priv->h*d_width/d_height+1)&~1;
if(vf->priv->h==-3) vf->priv->h=vf->priv->w*height/width; else
if(vf->priv->h==-2) vf->priv->h=vf->priv->w*d_height/d_width;
break;
case IMGFMT_YV12: /* YV12 needs w & h rounded to 2 */
if(vf->priv->w==-3) vf->priv->w=(vf->priv->h*width/height+1)&~1; else
if(vf->priv->w==-2) vf->priv->w=(vf->priv->h*d_width/d_height+1)&~1;
if(vf->priv->h==-3) vf->priv->h=(vf->priv->w*height/width+1)&~1; else
if(vf->priv->h==-2) vf->priv->h=(vf->priv->w*d_height/d_width+2)&~1;
break;
default:
if(vf->priv->w==-3) vf->priv->w=vf->priv->h*width/height; else
if(vf->priv->w==-2) vf->priv->w=vf->priv->h*d_width/d_height;
if(vf->priv->h==-3) vf->priv->h=vf->priv->w*height/width; else
if(vf->priv->h==-2) vf->priv->h=vf->priv->w*d_height/d_width;
break;
}
if(vf->priv->w<0) vf->priv->w=width; else
if(vf->priv->w==0) vf->priv->w=d_width;
if(vf->priv->h==-3) vf->priv->h=vf->priv->w*height/width; else
if(vf->priv->h==-2) vf->priv->h=vf->priv->w*d_height/d_width;
if(vf->priv->h<0) vf->priv->h=height; else
if(vf->priv->h==0) vf->priv->h=d_height;