diff options
| author | Felicia Lim <flim@google.com> | 2017-07-05 17:36:56 -0700 |
|---|---|---|
| committer | Felicia Lim <flim@google.com> | 2017-07-07 09:42:55 -0700 |
| commit | 0c2090c324e4f2ba2a8621c8b083559bab74c7c5 (patch) | |
| tree | fea1ab0038bc4102569d1ab4ee57a0f973895570 /silk/fixed/k2a_Q16_FIX.c | |
| parent | a7703b70699299f078a189e19b6915120cded732 (diff) | |
| download | libopus-0c2090c324e4f2ba2a8621c8b083559bab74c7c5.tar.gz | |
Opus 1.2.1android-o-iot-preview-5o-iot-preview-5
Change-Id: I551f1de5c5e121ac1275334e67c7e0f96ab18114
Test: - verified builds for arm*/mips*/x86*
- checked functionality using an emulator and stagefright
Diffstat (limited to 'silk/fixed/k2a_Q16_FIX.c')
| -rw-r--r-- | silk/fixed/k2a_Q16_FIX.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/silk/fixed/k2a_Q16_FIX.c b/silk/fixed/k2a_Q16_FIX.c index 3b039875..1595aa62 100644 --- a/silk/fixed/k2a_Q16_FIX.c +++ b/silk/fixed/k2a_Q16_FIX.c @@ -39,15 +39,16 @@ void silk_k2a_Q16( ) { opus_int k, n; - opus_int32 Atmp[ SILK_MAX_ORDER_LPC ]; + opus_int32 rc, tmp1, tmp2; for( k = 0; k < order; k++ ) { - for( n = 0; n < k; n++ ) { - Atmp[ n ] = A_Q24[ n ]; + rc = rc_Q16[ k ]; + for( n = 0; n < (k + 1) >> 1; n++ ) { + tmp1 = A_Q24[ n ]; + tmp2 = A_Q24[ k - n - 1 ]; + A_Q24[ n ] = silk_SMLAWW( tmp1, tmp2, rc ); + A_Q24[ k - n - 1 ] = silk_SMLAWW( tmp2, tmp1, rc ); } - for( n = 0; n < k; n++ ) { - A_Q24[ n ] = silk_SMLAWW( A_Q24[ n ], Atmp[ k - n - 1 ], rc_Q16[ k ] ); - } - A_Q24[ k ] = -silk_LSHIFT( rc_Q16[ k ], 8 ); + A_Q24[ k ] = -silk_LSHIFT( rc, 8 ); } } |