diff options
author | Jonathan Lennox <jonathan@vidyo.com> | 2015-12-22 19:21:44 -0500 |
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committer | Timothy B. Terriberry <tterribe@xiph.org> | 2016-07-06 15:00:01 -0700 |
commit | 44e8e7385037af88994088d677d8319fc9850a48 (patch) | |
tree | e4fa7dcef2f9d9b3082ee00bd155c5c1f348ddb0 /silk/NSQ.h | |
parent | fdb3b3ac34403890cf62857f30d4f58a294ce142 (diff) | |
download | opus-44e8e7385037af88994088d677d8319fc9850a48.tar.gz |
Add Neon intrinsics for Silk noise shape quantization.
Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
Diffstat (limited to 'silk/NSQ.h')
-rw-r--r-- | silk/NSQ.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/silk/NSQ.h b/silk/NSQ.h new file mode 100644 index 00000000..e2c3db28 --- /dev/null +++ b/silk/NSQ.h @@ -0,0 +1,72 @@ +/*********************************************************************** +Copyright (c) 2014 Vidyo. +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. +***********************************************************************/ +#ifndef SILK_NSQ_H +#define SILK_NSQ_H + +#include "SigProc_FIX.h" + +#undef silk_short_prediction_create_arch_coef + +static OPUS_INLINE opus_int32 silk_noise_shape_quantizer_short_prediction_c(const opus_int32 *buf32, const opus_int16 *coef16, opus_int order) +{ + opus_int32 out; + silk_assert( order == 10 || order == 16 ); + + /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf */ + out = silk_RSHIFT( order, 1 ); + out = silk_SMLAWB( out, buf32[ 0 ], coef16[ 0 ] ); + out = silk_SMLAWB( out, buf32[ -1 ], coef16[ 1 ] ); + out = silk_SMLAWB( out, buf32[ -2 ], coef16[ 2 ] ); + out = silk_SMLAWB( out, buf32[ -3 ], coef16[ 3 ] ); + out = silk_SMLAWB( out, buf32[ -4 ], coef16[ 4 ] ); + out = silk_SMLAWB( out, buf32[ -5 ], coef16[ 5 ] ); + out = silk_SMLAWB( out, buf32[ -6 ], coef16[ 6 ] ); + out = silk_SMLAWB( out, buf32[ -7 ], coef16[ 7 ] ); + out = silk_SMLAWB( out, buf32[ -8 ], coef16[ 8 ] ); + out = silk_SMLAWB( out, buf32[ -9 ], coef16[ 9 ] ); + + if( order == 16 ) + { + out = silk_SMLAWB( out, buf32[ -10 ], coef16[ 10 ] ); + out = silk_SMLAWB( out, buf32[ -11 ], coef16[ 11 ] ); + out = silk_SMLAWB( out, buf32[ -12 ], coef16[ 12 ] ); + out = silk_SMLAWB( out, buf32[ -13 ], coef16[ 13 ] ); + out = silk_SMLAWB( out, buf32[ -14 ], coef16[ 14 ] ); + out = silk_SMLAWB( out, buf32[ -15 ], coef16[ 15 ] ); + } + return out; +} + +#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch) ((void)arch,silk_noise_shape_quantizer_short_prediction_c(in, coef, order)) + + +#if defined(OPUS_ARM_MAY_HAVE_NEON_INTR) +#include "arm/NSQ_neon.h" +#endif + +#endif /* SILK_NSQ_H */ |