diff options
Diffstat (limited to 'src/main/jni/opus/silk/fixed/residual_energy16_FIX.c')
| -rw-r--r-- | src/main/jni/opus/silk/fixed/residual_energy16_FIX.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/src/main/jni/opus/silk/fixed/residual_energy16_FIX.c b/src/main/jni/opus/silk/fixed/residual_energy16_FIX.c deleted file mode 100644 index ebffb2a66..000000000 --- a/src/main/jni/opus/silk/fixed/residual_energy16_FIX.c +++ /dev/null @@ -1,103 +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. -***********************************************************************/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "main_FIX.h" - -/* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */ -opus_int32 silk_residual_energy16_covar_FIX( - const opus_int16 *c, /* I Prediction vector */ - const opus_int32 *wXX, /* I Correlation matrix */ - const opus_int32 *wXx, /* I Correlation vector */ - opus_int32 wxx, /* I Signal energy */ - opus_int D, /* I Dimension */ - opus_int cQ /* I Q value for c vector 0 - 15 */ -) -{ - opus_int i, j, lshifts, Qxtra; - opus_int32 c_max, w_max, tmp, tmp2, nrg; - opus_int cn[ MAX_MATRIX_SIZE ]; - const opus_int32 *pRow; - - /* Safety checks */ - silk_assert( D >= 0 ); - silk_assert( D <= 16 ); - silk_assert( cQ > 0 ); - silk_assert( cQ < 16 ); - - lshifts = 16 - cQ; - Qxtra = lshifts; - - c_max = 0; - for( i = 0; i < D; i++ ) { - c_max = silk_max_32( c_max, silk_abs( (opus_int32)c[ i ] ) ); - } - Qxtra = silk_min_int( Qxtra, silk_CLZ32( c_max ) - 17 ); - - w_max = silk_max_32( wXX[ 0 ], wXX[ D * D - 1 ] ); - Qxtra = silk_min_int( Qxtra, silk_CLZ32( silk_MUL( D, silk_RSHIFT( silk_SMULWB( w_max, c_max ), 4 ) ) ) - 5 ); - Qxtra = silk_max_int( Qxtra, 0 ); - for( i = 0; i < D; i++ ) { - cn[ i ] = silk_LSHIFT( ( opus_int )c[ i ], Qxtra ); - silk_assert( silk_abs(cn[i]) <= ( silk_int16_MAX + 1 ) ); /* Check that silk_SMLAWB can be used */ - } - lshifts -= Qxtra; - - /* Compute wxx - 2 * wXx * c */ - tmp = 0; - for( i = 0; i < D; i++ ) { - tmp = silk_SMLAWB( tmp, wXx[ i ], cn[ i ] ); - } - nrg = silk_RSHIFT( wxx, 1 + lshifts ) - tmp; /* Q: -lshifts - 1 */ - - /* Add c' * wXX * c, assuming wXX is symmetric */ - tmp2 = 0; - for( i = 0; i < D; i++ ) { - tmp = 0; - pRow = &wXX[ i * D ]; - for( j = i + 1; j < D; j++ ) { - tmp = silk_SMLAWB( tmp, pRow[ j ], cn[ j ] ); - } - tmp = silk_SMLAWB( tmp, silk_RSHIFT( pRow[ i ], 1 ), cn[ i ] ); - tmp2 = silk_SMLAWB( tmp2, tmp, cn[ i ] ); - } - nrg = silk_ADD_LSHIFT32( nrg, tmp2, lshifts ); /* Q: -lshifts - 1 */ - - /* Keep one bit free always, because we add them for LSF interpolation */ - if( nrg < 1 ) { - nrg = 1; - } else if( nrg > silk_RSHIFT( silk_int32_MAX, lshifts + 2 ) ) { - nrg = silk_int32_MAX >> 1; - } else { - nrg = silk_LSHIFT( nrg, lshifts + 1 ); /* Q0 */ - } - return nrg; - -} |