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| author | Michael Niedermayer <michaelni@gmx.at> | 2010-01-11 01:00:50 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2010-01-11 01:00:50 +0000 |
| commit | 233a8b3d6bb19fd80dd7760389051fcde766f06c (patch) | |
| tree | 64592ccf7e95197b22a3238c480308024ae23c35 /libavcodec/snow.c | |
| parent | 2a84512a7463f4c8f521fd40bb98aaff18046035 (diff) | |
| download | ffmpeg-233a8b3d6bb19fd80dd7760389051fcde766f06c.tar.gz | |
Merge vertical_compose53iL0*()
8% faster C 5/3 wavelet at the decoder side.
Originally committed as revision 21131 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/snow.c')
| -rw-r--r-- | libavcodec/snow.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/snow.c b/libavcodec/snow.c index a82c07bb3f..a9aa2eb368 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -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); |