101 lines
4.2 KiB
C
101 lines
4.2 KiB
C
/***********************************************************************
|
|
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))
|
|
|
|
static OPUS_INLINE opus_int32 silk_NSQ_noise_shape_feedback_loop_c(const opus_int32 *data0, opus_int32 *data1, const opus_int16 *coef, opus_int order)
|
|
{
|
|
opus_int32 out;
|
|
opus_int32 tmp1, tmp2;
|
|
opus_int j;
|
|
|
|
tmp2 = data0[0];
|
|
tmp1 = data1[0];
|
|
data1[0] = tmp2;
|
|
|
|
out = silk_RSHIFT(order, 1);
|
|
out = silk_SMLAWB(out, tmp2, coef[0]);
|
|
|
|
for (j = 2; j < order; j += 2) {
|
|
tmp2 = data1[j - 1];
|
|
data1[j - 1] = tmp1;
|
|
out = silk_SMLAWB(out, tmp1, coef[j - 1]);
|
|
tmp1 = data1[j + 0];
|
|
data1[j + 0] = tmp2;
|
|
out = silk_SMLAWB(out, tmp2, coef[j]);
|
|
}
|
|
data1[order - 1] = tmp1;
|
|
out = silk_SMLAWB(out, tmp1, coef[order - 1]);
|
|
/* Q11 -> Q12 */
|
|
out = silk_LSHIFT32( out, 1 );
|
|
return out;
|
|
}
|
|
|
|
#define silk_NSQ_noise_shape_feedback_loop(data0, data1, coef, order, arch) ((void)arch,silk_NSQ_noise_shape_feedback_loop_c(data0, data1, coef, order))
|
|
|
|
#if defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
|
|
#include "arm/NSQ_neon.h"
|
|
#endif
|
|
|
|
#endif /* SILK_NSQ_H */
|