media/libopus/silk/init_encoder.c@6474c204b198 (annotated)
media/libopus/silk/init_encoder.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /*********************************************************************** |
| michael@0 | 2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| michael@0 | 3 | Redistribution and use in source and binary forms, with or without |
| michael@0 | 4 | modification, are permitted provided that the following conditions |
| michael@0 | 5 | are met: |
| michael@0 | 6 | - Redistributions of source code must retain the above copyright notice, |
| michael@0 | 7 | this list of conditions and the following disclaimer. |
| michael@0 | 8 | - Redistributions in binary form must reproduce the above copyright |
| michael@0 | 9 | notice, this list of conditions and the following disclaimer in the |
| michael@0 | 10 | documentation and/or other materials provided with the distribution. |
| michael@0 | 11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the |
| michael@0 | 12 | names of specific contributors, may be used to endorse or promote |
| michael@0 | 13 | products derived from this software without specific prior written |
| michael@0 | 14 | permission. |
| michael@0 | 15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| michael@0 | 16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| michael@0 | 17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| michael@0 | 18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| michael@0 | 19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| michael@0 | 20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| michael@0 | 21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| michael@0 | 22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| michael@0 | 23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| michael@0 | 25 | POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 26 | ***********************************************************************/ |
| michael@0 | 27 | |
| michael@0 | 28 | #ifdef HAVE_CONFIG_H |
| michael@0 | 29 | #include "config.h" |
| michael@0 | 30 | #endif |
| michael@0 | 31 | #ifdef FIXED_POINT |
| michael@0 | 32 | #include "main_FIX.h" |
| michael@0 | 33 | #else |
| michael@0 | 34 | #include "main_FLP.h" |
| michael@0 | 35 | #endif |
| michael@0 | 36 | #include "tuning_parameters.h" |
| michael@0 | 37 | #include "cpu_support.h" |
| michael@0 | 38 | |
| michael@0 | 39 | /*********************************/ |
| michael@0 | 40 | /* Initialize Silk Encoder state */ |
| michael@0 | 41 | /*********************************/ |
| michael@0 | 42 | opus_int silk_init_encoder( |
| michael@0 | 43 | silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */ |
| michael@0 | 44 | int arch /* I Run-time architecture */ |
| michael@0 | 45 | ) |
| michael@0 | 46 | { |
| michael@0 | 47 | opus_int ret = 0; |
| michael@0 | 48 | |
| michael@0 | 49 | /* Clear the entire encoder state */ |
| michael@0 | 50 | silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) ); |
| michael@0 | 51 | |
| michael@0 | 52 | psEnc->sCmn.arch = arch; |
| michael@0 | 53 | |
| michael@0 | 54 | psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 ); |
| michael@0 | 55 | psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15; |
| michael@0 | 56 | |
| michael@0 | 57 | /* Used to deactivate LSF interpolation, pitch prediction */ |
| michael@0 | 58 | psEnc->sCmn.first_frame_after_reset = 1; |
| michael@0 | 59 | |
| michael@0 | 60 | /* Initialize Silk VAD */ |
| michael@0 | 61 | ret += silk_VAD_Init( &psEnc->sCmn.sVAD ); |
| michael@0 | 62 | |
| michael@0 | 63 | return ret; |
| michael@0 | 64 | } |
