Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1 | /*********************************************************************** |
| 2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| 3 | Redistribution and use in source and binary forms, with or without |
| 4 | modification, are permitted provided that the following conditions |
| 5 | are met: |
| 6 | - Redistributions of source code must retain the above copyright notice, |
| 7 | this list of conditions and the following disclaimer. |
| 8 | - Redistributions in binary form must reproduce the above copyright |
| 9 | notice, this list of conditions and the following disclaimer in the |
| 10 | documentation and/or other materials provided with the distribution. |
| 11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the |
| 12 | names of specific contributors, may be used to endorse or promote |
| 13 | products derived from this software without specific prior written |
| 14 | permission. |
| 15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 25 | POSSIBILITY OF SUCH DAMAGE. |
| 26 | ***********************************************************************/ |
| 27 | |
| 28 | #ifdef HAVE_CONFIG_H |
| 29 | #include "config.h" |
| 30 | #endif |
| 31 | #ifdef FIXED_POINT |
| 32 | #include "main_FIX.h" |
| 33 | #else |
| 34 | #include "main_FLP.h" |
| 35 | #endif |
| 36 | #include "tuning_parameters.h" |
| 37 | #include "cpu_support.h" |
| 38 | |
| 39 | /*********************************/ |
| 40 | /* Initialize Silk Encoder state */ |
| 41 | /*********************************/ |
| 42 | opus_int silk_init_encoder( |
| 43 | silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */ |
| 44 | int arch /* I Run-time architecture */ |
| 45 | ) |
| 46 | { |
| 47 | opus_int ret = 0; |
| 48 | |
| 49 | /* Clear the entire encoder state */ |
| 50 | silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) ); |
| 51 | |
| 52 | psEnc->sCmn.arch = arch; |
| 53 | |
| 54 | psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 ); |
| 55 | psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15; |
| 56 | |
| 57 | /* Used to deactivate LSF interpolation, pitch prediction */ |
| 58 | psEnc->sCmn.first_frame_after_reset = 1; |
| 59 | |
| 60 | /* Initialize Silk VAD */ |
| 61 | ret += silk_VAD_Init( &psEnc->sCmn.sVAD ); |
| 62 | |
| 63 | return ret; |
| 64 | } |