diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/silk/float/LTP_scale_ctrl_FLP.c')
-rw-r--r-- | lib/rbcodec/codecs/libopus/silk/float/LTP_scale_ctrl_FLP.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/silk/float/LTP_scale_ctrl_FLP.c b/lib/rbcodec/codecs/libopus/silk/float/LTP_scale_ctrl_FLP.c new file mode 100644 index 0000000000..8dbe29d0fa --- /dev/null +++ b/lib/rbcodec/codecs/libopus/silk/float/LTP_scale_ctrl_FLP.c | |||
@@ -0,0 +1,52 @@ | |||
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 | |||
32 | #include "main_FLP.h" | ||
33 | |||
34 | void silk_LTP_scale_ctrl_FLP( | ||
35 | silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ | ||
36 | silk_encoder_control_FLP *psEncCtrl, /* I/O Encoder control FLP */ | ||
37 | opus_int condCoding /* I The type of conditional coding to use */ | ||
38 | ) | ||
39 | { | ||
40 | opus_int round_loss; | ||
41 | |||
42 | if( condCoding == CODE_INDEPENDENTLY ) { | ||
43 | /* Only scale if first frame in packet */ | ||
44 | round_loss = psEnc->sCmn.PacketLoss_perc + psEnc->sCmn.nFramesPerPacket; | ||
45 | psEnc->sCmn.indices.LTP_scaleIndex = (opus_int8)silk_LIMIT( round_loss * psEncCtrl->LTPredCodGain * 0.1f, 0.0f, 2.0f ); | ||
46 | } else { | ||
47 | /* Default is minimum scaling */ | ||
48 | psEnc->sCmn.indices.LTP_scaleIndex = 0; | ||
49 | } | ||
50 | |||
51 | psEncCtrl->LTP_scale = (silk_float)silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ] / 16384.0f; | ||
52 | } | ||