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author | David Conrad <lessen42@gmail.com> | 2008-10-04 10:26:17 +0000 |
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committer | David Conrad <lessen42@gmail.com> | 2008-10-04 10:26:17 +0000 |
commit | 9971331dfb6f4ef499b17f156bc0befc98b504b1 (patch) | |
tree | c71ba4d03347044dd49b7055dcb2aa7d41c19568 /libavcodec/vp3dsp.c | |
parent | 0d696d34ef62725f3b445b370ff2ac374029ea92 (diff) | |
download | ffmpeg-9971331dfb6f4ef499b17f156bc0befc98b504b1.tar.gz |
Move VP3 loop filter to DSPContext
Originally committed as revision 15551 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vp3dsp.c')
-rw-r--r-- | libavcodec/vp3dsp.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c index d374a85f6e..da5b108bdc 100644 --- a/libavcodec/vp3dsp.c +++ b/libavcodec/vp3dsp.c @@ -222,3 +222,34 @@ void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/* void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){ idct(dest, line_size, block, 2); } + +void ff_vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values) +{ + unsigned char *end; + int filter_value; + const int nstride= -stride; + + for (end= first_pixel + 8; first_pixel < end; first_pixel++) { + filter_value = + (first_pixel[2 * nstride] - first_pixel[ stride]) + +3*(first_pixel[0 ] - first_pixel[nstride]); + filter_value = bounding_values[(filter_value + 4) >> 3]; + first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value); + first_pixel[0] = av_clip_uint8(first_pixel[0] - filter_value); + } +} + +void ff_vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values) +{ + unsigned char *end; + int filter_value; + + for (end= first_pixel + 8*stride; first_pixel != end; first_pixel += stride) { + filter_value = + (first_pixel[-2] - first_pixel[ 1]) + +3*(first_pixel[ 0] - first_pixel[-1]); + filter_value = bounding_values[(filter_value + 4) >> 3]; + first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value); + first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value); + } +} |