diff options
Diffstat (limited to 'drivers/opus/silk/resampler_private_AR2.c')
| -rw-r--r-- | drivers/opus/silk/resampler_private_AR2.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/drivers/opus/silk/resampler_private_AR2.c b/drivers/opus/silk/resampler_private_AR2.c deleted file mode 100644 index cc753ea704..0000000000 --- a/drivers/opus/silk/resampler_private_AR2.c +++ /dev/null @@ -1,52 +0,0 @@ -/*********************************************************************** -Copyright (c) 2006-2011, Skype Limited. All rights reserved. -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions -are met: -- Redistributions of source code must retain the above copyright notice, -this list of conditions and the following disclaimer. -- Redistributions in binary form must reproduce the above copyright -notice, this list of conditions and the following disclaimer in the -documentation and/or other materials provided with the distribution. -- Neither the name of Internet Society, IETF or IETF Trust, nor the -names of specific contributors, may be used to endorse or promote -products derived from this software without specific prior written -permission. -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. -***********************************************************************/ -#include "opus/opus_config.h" - -#include "opus/silk/SigProc_FIX.h" -#include "opus/silk/resampler_private.h" - -/* Second order AR filter with single delay elements */ -void silk_resampler_private_AR2( - opus_int32 S[], /* I/O State vector [ 2 ] */ - opus_int32 out_Q8[], /* O Output signal */ - const opus_int16 in[], /* I Input signal */ - const opus_int16 A_Q14[], /* I AR coefficients, Q14 */ - opus_int32 len /* I Signal length */ -) -{ - opus_int32 k; - opus_int32 out32; - - for( k = 0; k < len; k++ ) { - out32 = silk_ADD_LSHIFT32( S[ 0 ], (opus_int32)in[ k ], 8 ); - out_Q8[ k ] = out32; - out32 = silk_LSHIFT( out32, 2 ); - S[ 0 ] = silk_SMLAWB( S[ 1 ], out32, A_Q14[ 0 ] ); - S[ 1 ] = silk_SMULWB( out32, A_Q14[ 1 ] ); - } -} - |