diff options
Diffstat (limited to 'silk/fixed/find_LPC_FIX.c')
| -rw-r--r-- | silk/fixed/find_LPC_FIX.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/silk/fixed/find_LPC_FIX.c b/silk/fixed/find_LPC_FIX.c index 0ed7e84..70cefb6 100644 --- a/silk/fixed/find_LPC_FIX.c +++ b/silk/fixed/find_LPC_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Finds LPC vector from correlations, and converts to NLSF */ @@ -51,7 +52,7 @@ void silk_find_LPC_FIX( opus_int res_nrg_interp_Q, res_nrg_Q, res_tmp_nrg_Q; opus_int16 a_tmp_Q12[ MAX_LPC_ORDER ]; opus_int16 NLSF0_Q15[ MAX_LPC_ORDER ]; - opus_int16 LPC_res[ MAX_FRAME_LENGTH + MAX_NB_SUBFR * MAX_LPC_ORDER ]; + SAVE_STACK; subfr_length = psEncC->subfr_length + psEncC->predictLPCOrder; @@ -62,6 +63,8 @@ void silk_find_LPC_FIX( silk_burg_modified( &res_nrg, &res_nrg_Q, a_Q16, x, minInvGain_Q30, subfr_length, psEncC->nb_subfr, psEncC->predictLPCOrder ); if( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) { + VARDECL( opus_int16, LPC_res ); + /* Optimal solution for last 10 ms */ silk_burg_modified( &res_tmp_nrg, &res_tmp_nrg_Q, a_tmp_Q16, x + 2 * subfr_length, minInvGain_Q30, subfr_length, 2, psEncC->predictLPCOrder ); @@ -81,6 +84,8 @@ void silk_find_LPC_FIX( /* Convert to NLSFs */ silk_A2NLSF( NLSF_Q15, a_tmp_Q16, psEncC->predictLPCOrder ); + ALLOC( LPC_res, 2 * subfr_length, opus_int16 ); + /* Search over interpolation indices to find the one with lowest residual energy */ for( k = 3; k >= 0; k-- ) { /* Interpolate NLSFs for first half */ @@ -142,4 +147,5 @@ void silk_find_LPC_FIX( } silk_assert( psEncC->indices.NLSFInterpCoef_Q2 == 4 || ( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) ); + RESTORE_STACK; } |