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Merge vertical_compose53iL0*()

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8% faster C 5/3 wavelet at the decoder side.

Originally committed as revision 21131 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-01-11 01:00:50 +00:00
parent 2a84512a74
commit 233a8b3d6b
1 changed files with 9 additions and 0 deletions
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9
libavcodec/snow.c
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@ -1070,8 +1070,17 @@ static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer * sb, in
IDWTELEM *b2= slice_buffer_get_line(sb, mirror(y+1, height-1) * stride_line);
IDWTELEM *b3= slice_buffer_get_line(sb, mirror(y+2, height-1) * stride_line);
if(y+1<(unsigned)height && y<(unsigned)height){
int x;
for(x=0; x<width; x++){
b2[x] -= (b1[x] + b3[x] + 2)>>2;
b1[x] += (b0[x] + b2[x])>>1;
}
}else{
if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width);
if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width);
}
if(y-1<(unsigned)height) horizontal_compose53i(b0, width);
if(y+0<(unsigned)height) horizontal_compose53i(b1, width);