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Issue 107243004: Updating Opus to release 1.1 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/opus
Patch Set: Created 7 years ago
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1 /* Copyright (c) 2001-2011 Timothy B. Terriberry 1 /* Copyright (c) 2001-2011 Timothy B. Terriberry
2 Copyright (c) 2008-2009 Xiph.Org Foundation */ 2 Copyright (c) 2008-2009 Xiph.Org Foundation */
3 /* 3 /*
4 Redistribution and use in source and binary forms, with or without 4 Redistribution and use in source and binary forms, with or without
5 modification, are permitted provided that the following conditions 5 modification, are permitted provided that the following conditions
6 are met: 6 are met:
7 7
8 - Redistributions of source code must retain the above copyright 8 - Redistributions of source code must retain the above copyright
9 notice, this list of conditions and the following disclaimer. 9 notice, this list of conditions and the following disclaimer.
10 10
11 - Redistributions in binary form must reproduce the above copyright 11 - Redistributions in binary form must reproduce the above copyright
12 notice, this list of conditions and the following disclaimer in the 12 notice, this list of conditions and the following disclaimer in the
13 documentation and/or other materials provided with the distribution. 13 documentation and/or other materials provided with the distribution.
14 14
15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */ 26 */
27 27
28 #include "opus_types.h" 28 #include "opus_types.h"
29 #include "opus_defines.h"
29 30
30 #if !defined(_entcode_H) 31 #if !defined(_entcode_H)
31 # define _entcode_H (1) 32 # define _entcode_H (1)
32 # include <limits.h> 33 # include <limits.h>
33 # include <stddef.h> 34 # include <stddef.h>
34 # include "ecintrin.h" 35 # include "ecintrin.h"
35 36
36 /*OPT: ec_window must be at least 32 bits, but if you have fast arithmetic on a 37 /*OPT: ec_window must be at least 32 bits, but if you have fast arithmetic on a
37 larger type, you can speed up the decoder by using it here.*/ 38 larger type, you can speed up the decoder by using it here.*/
38 typedef opus_uint32 ec_window; 39 typedef opus_uint32 ec_window;
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
76 opus_uint32 val; 77 opus_uint32 val;
77 /*In the decoder: the saved normalization factor from ec_decode(). 78 /*In the decoder: the saved normalization factor from ec_decode().
78 In the encoder: the number of oustanding carry propagating symbols.*/ 79 In the encoder: the number of oustanding carry propagating symbols.*/
79 opus_uint32 ext; 80 opus_uint32 ext;
80 /*A buffered input/output symbol, awaiting carry propagation.*/ 81 /*A buffered input/output symbol, awaiting carry propagation.*/
81 int rem; 82 int rem;
82 /*Nonzero if an error occurred.*/ 83 /*Nonzero if an error occurred.*/
83 int error; 84 int error;
84 }; 85 };
85 86
86 static inline opus_uint32 ec_range_bytes(ec_ctx *_this){ 87 static OPUS_INLINE opus_uint32 ec_range_bytes(ec_ctx *_this){
87 return _this->offs; 88 return _this->offs;
88 } 89 }
89 90
90 static inline unsigned char *ec_get_buffer(ec_ctx *_this){ 91 static OPUS_INLINE unsigned char *ec_get_buffer(ec_ctx *_this){
91 return _this->buf; 92 return _this->buf;
92 } 93 }
93 94
94 static inline int ec_get_error(ec_ctx *_this){ 95 static OPUS_INLINE int ec_get_error(ec_ctx *_this){
95 return _this->error; 96 return _this->error;
96 } 97 }
97 98
98 /*Returns the number of bits "used" by the encoded or decoded symbols so far. 99 /*Returns the number of bits "used" by the encoded or decoded symbols so far.
99 This same number can be computed in either the encoder or the decoder, and is 100 This same number can be computed in either the encoder or the decoder, and is
100 suitable for making coding decisions. 101 suitable for making coding decisions.
101 Return: The number of bits. 102 Return: The number of bits.
102 This will always be slightly larger than the exact value (e.g., all 103 This will always be slightly larger than the exact value (e.g., all
103 rounding error is in the positive direction).*/ 104 rounding error is in the positive direction).*/
104 static inline int ec_tell(ec_ctx *_this){ 105 static OPUS_INLINE int ec_tell(ec_ctx *_this){
105 return _this->nbits_total-EC_ILOG(_this->rng); 106 return _this->nbits_total-EC_ILOG(_this->rng);
106 } 107 }
107 108
108 /*Returns the number of bits "used" by the encoded or decoded symbols so far. 109 /*Returns the number of bits "used" by the encoded or decoded symbols so far.
109 This same number can be computed in either the encoder or the decoder, and is 110 This same number can be computed in either the encoder or the decoder, and is
110 suitable for making coding decisions. 111 suitable for making coding decisions.
111 Return: The number of bits scaled by 2**BITRES. 112 Return: The number of bits scaled by 2**BITRES.
112 This will always be slightly larger than the exact value (e.g., all 113 This will always be slightly larger than the exact value (e.g., all
113 rounding error is in the positive direction).*/ 114 rounding error is in the positive direction).*/
114 opus_uint32 ec_tell_frac(ec_ctx *_this); 115 opus_uint32 ec_tell_frac(ec_ctx *_this);
115 116
116 #endif 117 #endif
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