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Diffstat (limited to 'lib/rbcodec/codecs/libopus/silk/NSQ.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/silk/NSQ.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/silk/NSQ.h b/lib/rbcodec/codecs/libopus/silk/NSQ.h new file mode 100644 index 0000000000..971832f660 --- /dev/null +++ b/lib/rbcodec/codecs/libopus/silk/NSQ.h | |||
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1 | /*********************************************************************** | ||
2 | Copyright (c) 2014 Vidyo. | ||
3 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. | ||
4 | Redistribution and use in source and binary forms, with or without | ||
5 | modification, are permitted provided that the following conditions | ||
6 | are met: | ||
7 | - Redistributions of source code must retain the above copyright notice, | ||
8 | this list of conditions and the following disclaimer. | ||
9 | - Redistributions in binary form must reproduce the above copyright | ||
10 | notice, this list of conditions and the following disclaimer in the | ||
11 | documentation and/or other materials provided with the distribution. | ||
12 | - Neither the name of Internet Society, IETF or IETF Trust, nor the | ||
13 | names of specific contributors, may be used to endorse or promote | ||
14 | products derived from this software without specific prior written | ||
15 | permission. | ||
16 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
17 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
18 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
19 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
20 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
21 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
22 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
23 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
24 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
25 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
26 | POSSIBILITY OF SUCH DAMAGE. | ||
27 | ***********************************************************************/ | ||
28 | #ifndef SILK_NSQ_H | ||
29 | #define SILK_NSQ_H | ||
30 | |||
31 | #include "SigProc_FIX.h" | ||
32 | |||
33 | #undef silk_short_prediction_create_arch_coef | ||
34 | |||
35 | static OPUS_INLINE opus_int32 silk_noise_shape_quantizer_short_prediction_c(const opus_int32 *buf32, const opus_int16 *coef16, opus_int order) | ||
36 | { | ||
37 | opus_int32 out; | ||
38 | silk_assert( order == 10 || order == 16 ); | ||
39 | |||
40 | /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf */ | ||
41 | out = silk_RSHIFT( order, 1 ); | ||
42 | out = silk_SMLAWB( out, buf32[ 0 ], coef16[ 0 ] ); | ||
43 | out = silk_SMLAWB( out, buf32[ -1 ], coef16[ 1 ] ); | ||
44 | out = silk_SMLAWB( out, buf32[ -2 ], coef16[ 2 ] ); | ||
45 | out = silk_SMLAWB( out, buf32[ -3 ], coef16[ 3 ] ); | ||
46 | out = silk_SMLAWB( out, buf32[ -4 ], coef16[ 4 ] ); | ||
47 | out = silk_SMLAWB( out, buf32[ -5 ], coef16[ 5 ] ); | ||
48 | out = silk_SMLAWB( out, buf32[ -6 ], coef16[ 6 ] ); | ||
49 | out = silk_SMLAWB( out, buf32[ -7 ], coef16[ 7 ] ); | ||
50 | out = silk_SMLAWB( out, buf32[ -8 ], coef16[ 8 ] ); | ||
51 | out = silk_SMLAWB( out, buf32[ -9 ], coef16[ 9 ] ); | ||
52 | |||
53 | if( order == 16 ) | ||
54 | { | ||
55 | out = silk_SMLAWB( out, buf32[ -10 ], coef16[ 10 ] ); | ||
56 | out = silk_SMLAWB( out, buf32[ -11 ], coef16[ 11 ] ); | ||
57 | out = silk_SMLAWB( out, buf32[ -12 ], coef16[ 12 ] ); | ||
58 | out = silk_SMLAWB( out, buf32[ -13 ], coef16[ 13 ] ); | ||
59 | out = silk_SMLAWB( out, buf32[ -14 ], coef16[ 14 ] ); | ||
60 | out = silk_SMLAWB( out, buf32[ -15 ], coef16[ 15 ] ); | ||
61 | } | ||
62 | return out; | ||
63 | } | ||
64 | |||
65 | #define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch) ((void)arch,silk_noise_shape_quantizer_short_prediction_c(in, coef, order)) | ||
66 | |||
67 | static OPUS_INLINE opus_int32 silk_NSQ_noise_shape_feedback_loop_c(const opus_int32 *data0, opus_int32 *data1, const opus_int16 *coef, opus_int order) | ||
68 | { | ||
69 | opus_int32 out; | ||
70 | opus_int32 tmp1, tmp2; | ||
71 | opus_int j; | ||
72 | |||
73 | tmp2 = data0[0]; | ||
74 | tmp1 = data1[0]; | ||
75 | data1[0] = tmp2; | ||
76 | |||
77 | out = silk_RSHIFT(order, 1); | ||
78 | out = silk_SMLAWB(out, tmp2, coef[0]); | ||
79 | |||
80 | for (j = 2; j < order; j += 2) { | ||
81 | tmp2 = data1[j - 1]; | ||
82 | data1[j - 1] = tmp1; | ||
83 | out = silk_SMLAWB(out, tmp1, coef[j - 1]); | ||
84 | tmp1 = data1[j + 0]; | ||
85 | data1[j + 0] = tmp2; | ||
86 | out = silk_SMLAWB(out, tmp2, coef[j]); | ||
87 | } | ||
88 | data1[order - 1] = tmp1; | ||
89 | out = silk_SMLAWB(out, tmp1, coef[order - 1]); | ||
90 | /* Q11 -> Q12 */ | ||
91 | out = silk_LSHIFT32( out, 1 ); | ||
92 | return out; | ||
93 | } | ||
94 | |||
95 | #define silk_NSQ_noise_shape_feedback_loop(data0, data1, coef, order, arch) ((void)arch,silk_NSQ_noise_shape_feedback_loop_c(data0, data1, coef, order)) | ||
96 | |||
97 | #if defined(OPUS_ARM_MAY_HAVE_NEON_INTR) | ||
98 | #include "arm/NSQ_neon.h" | ||
99 | #endif | ||
100 | |||
101 | #endif /* SILK_NSQ_H */ | ||