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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-06-19 03:06:40 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-06-19 03:09:24 +0200 |
| commit | 0c142e4cda3dbc3b460a5f8c1095cee6594ed5c6 (patch) | |
| tree | 537e232270d0fd97d63eb116c140031fbd61d39a /libswresample/resample_template.c | |
| parent | 80e857c967ff063def0ffc2499d1c78b8d6d130b (diff) | |
| download | ffmpeg-0c142e4cda3dbc3b460a5f8c1095cee6594ed5c6.tar.gz | |
swr: introduce filter_alloc in preparation of SIMD resample optimisations
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample/resample_template.c')
| -rw-r--r-- | libswresample/resample_template.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libswresample/resample_template.c b/libswresample/resample_template.c index 4060c66a43..13d7189842 100644 --- a/libswresample/resample_template.c +++ b/libswresample/resample_template.c @@ -50,7 +50,7 @@ int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int frac = (frac + dst_index * (int64_t)dst_incr_frac) % c->src_incr; }else if(compensation_distance == 0 && !c->linear && index >= 0){ for(dst_index=0; dst_index < dst_size; dst_index++){ - FELEM *filter= ((FELEM*)c->filter_bank) + c->filter_length*(index & c->phase_mask); + FELEM *filter= ((FELEM*)c->filter_bank) + c->filter_alloc*(index & c->phase_mask); int sample_index= index >> c->phase_shift; if(sample_index + c->filter_length > src_size){ @@ -72,7 +72,7 @@ int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int } }else{ for(dst_index=0; dst_index < dst_size; dst_index++){ - FELEM *filter= ((FELEM*)c->filter_bank) + c->filter_length*(index & c->phase_mask); + FELEM *filter= ((FELEM*)c->filter_bank) + c->filter_alloc*(index & c->phase_mask); int sample_index= index >> c->phase_shift; FELEM2 val=0; @@ -85,7 +85,7 @@ int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int FELEM2 v2=0; for(i=0; i<c->filter_length; i++){ val += src[sample_index + i] * (FELEM2)filter[i]; - v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_length]; + v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc]; } val+=(v2-val)*(FELEML)frac / c->src_incr; }else{ |