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| author | Linfeng Zhang <linfengz@google.com> | 2016-06-16 16:21:02 -0700 |
|---|---|---|
| committer | Felicia Lim <flim@google.com> | 2017-01-17 14:04:37 -0800 |
| commit | 783ad76766e1f6b6aaca5d6eb415ac8a8269e1f2 (patch) | |
| tree | 120458893d45586c9c1f3ee07135a71b4d22fc01 /silk/LPC_analysis_filter.c | |
| parent | c9ba55208c842a1681d82e7d7ff44fafedd2a853 (diff) | |
| download | opus-783ad76766e1f6b6aaca5d6eb415ac8a8269e1f2.tar.gz | |
Revise celt_fir_c() to not pass in argument "mem"
The "mem" in celt_fir_c() either is contained in the head of input "x"
in reverse order already, or can be easily attached to the head of "x"
before calling the function. Removing argument "mem" can eliminate the
redundant buffer copies inside.
Update celt_fir_sse4_1() accordingly.
Diffstat (limited to 'silk/LPC_analysis_filter.c')
| -rw-r--r-- | silk/LPC_analysis_filter.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/silk/LPC_analysis_filter.c b/silk/LPC_analysis_filter.c index 3c616d7b..20330d54 100644 --- a/silk/LPC_analysis_filter.c +++ b/silk/LPC_analysis_filter.c @@ -57,7 +57,6 @@ void silk_LPC_analysis_filter( { opus_int j; #if USE_CELT_FIR - opus_int16 mem[SILK_MAX_ORDER_LPC]; opus_int16 num[SILK_MAX_ORDER_LPC]; #else int ix; @@ -74,10 +73,7 @@ void silk_LPC_analysis_filter( for ( j = 0; j < d; j++ ) { num[ j ] = -B[ j ]; } - for (j=0;j<d;j++) { - mem[ j ] = in[ d - j - 1 ]; - } - celt_fir( in + d, num, out + d, len - d, d, mem, arch ); + celt_fir( in + d, num, out + d, len - d, d, arch ); for ( j = 0; j < d; j++ ) { out[ j ] = 0; } |