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Prevent overflows during mpeg->jpeg yuv. 

Originally committed as revision 27552 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2008-09-09 03:35:07 +00:00
parent 66ec3d56a2
commit aa13b0fc55
1 changed files with 3 additions and 3 deletions
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6
libswscale/swscale_template.c
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@ -2721,7 +2721,7 @@ FUNNY_Y_CODE
dst[i]= (dst[i]*14071 + 33561947)>>14;
}else{
for (i=0; i<dstWidth; i++)
dst[i]= (dst[i]*19077 - 39057361)>>14;
dst[i]= (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
}
}
}
@ -2986,8 +2986,8 @@ FUNNY_UV_CODE
}
}else{
for (i=0; i<dstWidth; i++){
dst[i ]= (dst[i ]*4663 - 9289992)>>12; //-264
dst[i+VOFW]= (dst[i+VOFW]*4663 - 9289992)>>12; //-264
dst[i ]= (FFMIN(dst[i ],30775)*4663 - 9289992)>>12; //-264
dst[i+VOFW]= (FFMIN(dst[i+VOFW],30775)*4663 - 9289992)>>12; //-264
}
}
}