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Issue 28553003: Updating Opus to a pre-release of 1.1 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/opus
Patch Set: Removing failing file Created 7 years, 1 month ago
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1 /*********************************************************************** 1 /***********************************************************************
2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3 Redistribution and use in source and binary forms, with or without 3 Redistribution and use in source and binary forms, with or without
4 modification, are permitted provided that the following conditions 4 modification, are permitted provided that the following conditions
5 are met: 5 are met:
6 - Redistributions of source code must retain the above copyright notice, 6 - Redistributions of source code must retain the above copyright notice,
7 this list of conditions and the following disclaimer. 7 this list of conditions and the following disclaimer.
8 - Redistributions in binary form must reproduce the above copyright 8 - Redistributions in binary form must reproduce the above copyright
9 notice, this list of conditions and the following disclaimer in the 9 notice, this list of conditions and the following disclaimer in the
10 documentation and/or other materials provided with the distribution. 10 documentation and/or other materials provided with the distribution.
11 - Neither the name of Internet Society, IETF or IETF Trust, nor the 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 12 names of specific contributors, may be used to endorse or promote
13 products derived from this software without specific prior written 13 products derived from this software without specific prior written
14 permission. 14 permission.
15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS 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 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 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 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 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 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 POSSIBILITY OF SUCH DAMAGE. 25 POSSIBILITY OF SUCH DAMAGE.
26 ***********************************************************************/ 26 ***********************************************************************/
27 27
28 #ifdef HAVE_CONFIG_H 28 #ifdef HAVE_CONFIG_H
29 #include "config.h" 29 #include "config.h"
30 #endif 30 #endif
31 31
32 #include "SigProc_FIX.h" 32 #include "SigProc_FIX.h"
33 #include "resampler_rom.h" 33 #include "resampler_rom.h"
34 34
35 /* Downsample by a factor 2 */ 35 /* Downsample by a factor 2 */
36 void silk_resampler_down2( 36 void silk_resampler_down2(
37 opus_int32 *S, /* I/O State vector [ 2 ] */ 37 opus_int32 *S, /* I/O State vector [ 2 ] */
38 opus_int16 *out, /* O Output signal [ len ] */ 38 opus_int16 *out, /* O Output signal [ floo r(len/2) ] */
39 const opus_int16 *in, /* I Input signal [ floor (len/2) ] */ 39 const opus_int16 *in, /* I Input signal [ len ] */
40 opus_int32 inLen /* I Number of input samp les */ 40 opus_int32 inLen /* I Number of input samp les */
41 ) 41 )
42 { 42 {
43 opus_int32 k, len2 = silk_RSHIFT32( inLen, 1 ); 43 opus_int32 k, len2 = silk_RSHIFT32( inLen, 1 );
44 opus_int32 in32, out32, Y, X; 44 opus_int32 in32, out32, Y, X;
45 45
46 silk_assert( silk_resampler_down2_0 > 0 ); 46 silk_assert( silk_resampler_down2_0 > 0 );
47 silk_assert( silk_resampler_down2_1 < 0 ); 47 silk_assert( silk_resampler_down2_1 < 0 );
48 48
49 /* Internal variables and state are in Q10 format */ 49 /* Internal variables and state are in Q10 format */
(...skipping 15 matching lines...) Expand all
65 X = silk_SMULWB( Y, silk_resampler_down2_0 ); 65 X = silk_SMULWB( Y, silk_resampler_down2_0 );
66 out32 = silk_ADD32( out32, S[ 1 ] ); 66 out32 = silk_ADD32( out32, S[ 1 ] );
67 out32 = silk_ADD32( out32, X ); 67 out32 = silk_ADD32( out32, X );
68 S[ 1 ] = silk_ADD32( in32, X ); 68 S[ 1 ] = silk_ADD32( in32, X );
69 69
70 /* Add, convert back to int16 and store to output */ 70 /* Add, convert back to int16 and store to output */
71 out[ k ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( out32, 11 ) ); 71 out[ k ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( out32, 11 ) );
72 } 72 }
73 } 73 }
74 74
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