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comparison src/opus-1.3/silk/API.h @ 69:7aeed7906520

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Add Opus sources and macOS builds
author Chris Cannam
date Wed, 23 Jan 2019 13:48:08 +0000
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68:85d5306e114e 69:7aeed7906520
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 #ifndef SILK_API_H
29 #define SILK_API_H
30
31 #include "control.h"
32 #include "typedef.h"
33 #include "errors.h"
34 #include "entenc.h"
35 #include "entdec.h"
36
37 #ifdef __cplusplus
38 extern "C"
39 {
40 #endif
41
42 #define SILK_MAX_FRAMES_PER_PACKET 3
43
44 /* Struct for TOC (Table of Contents) */
45 typedef struct {
46 opus_int VADFlag; /* Voice activity for packet */
47 opus_int VADFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* Voice activity for each frame in packet */
48 opus_int inbandFECFlag; /* Flag indicating if packet contains in-band FEC */
49 } silk_TOC_struct;
50
51 /****************************************/
52 /* Encoder functions */
53 /****************************************/
54
55 /***********************************************/
56 /* Get size in bytes of the Silk encoder state */
57 /***********************************************/
58 opus_int silk_Get_Encoder_Size( /* O Returns error code */
59 opus_int *encSizeBytes /* O Number of bytes in SILK encoder state */
60 );
61
62 /*************************/
63 /* Init or reset encoder */
64 /*************************/
65 opus_int silk_InitEncoder( /* O Returns error code */
66 void *encState, /* I/O State */
67 int arch, /* I Run-time architecture */
68 silk_EncControlStruct *encStatus /* O Encoder Status */
69 );
70
71 /**************************/
72 /* Encode frame with Silk */
73 /**************************/
74 /* Note: if prefillFlag is set, the input must contain 10 ms of audio, irrespective of what */
75 /* encControl->payloadSize_ms is set to */
76 opus_int silk_Encode( /* O Returns error code */
77 void *encState, /* I/O State */
78 silk_EncControlStruct *encControl, /* I Control status */
79 const opus_int16 *samplesIn, /* I Speech sample input vector */
80 opus_int nSamplesIn, /* I Number of samples in input vector */
81 ec_enc *psRangeEnc, /* I/O Compressor data structure */
82 opus_int32 *nBytesOut, /* I/O Number of bytes in payload (input: Max bytes) */
83 const opus_int prefillFlag, /* I Flag to indicate prefilling buffers no coding */
84 int activity /* I Decision of Opus voice activity detector */
85 );
86
87 /****************************************/
88 /* Decoder functions */
89 /****************************************/
90
91 /***********************************************/
92 /* Get size in bytes of the Silk decoder state */
93 /***********************************************/
94 opus_int silk_Get_Decoder_Size( /* O Returns error code */
95 opus_int *decSizeBytes /* O Number of bytes in SILK decoder state */
96 );
97
98 /*************************/
99 /* Init or Reset decoder */
100 /*************************/
101 opus_int silk_InitDecoder( /* O Returns error code */
102 void *decState /* I/O State */
103 );
104
105 /******************/
106 /* Decode a frame */
107 /******************/
108 opus_int silk_Decode( /* O Returns error code */
109 void* decState, /* I/O State */
110 silk_DecControlStruct* decControl, /* I/O Control Structure */
111 opus_int lostFlag, /* I 0: no loss, 1 loss, 2 decode fec */
112 opus_int newPacketFlag, /* I Indicates first decoder call for this packet */
113 ec_dec *psRangeDec, /* I/O Compressor data structure */
114 opus_int16 *samplesOut, /* O Decoded output speech vector */
115 opus_int32 *nSamplesOut, /* O Number of samples decoded */
116 int arch /* I Run-time architecture */
117 );
118
119 #if 0
120 /**************************************/
121 /* Get table of contents for a packet */
122 /**************************************/
123 opus_int silk_get_TOC(
124 const opus_uint8 *payload, /* I Payload data */
125 const opus_int nBytesIn, /* I Number of input bytes */
126 const opus_int nFramesPerPayload, /* I Number of SILK frames per payload */
127 silk_TOC_struct *Silk_TOC /* O Type of content */
128 );
129 #endif
130
131 #ifdef __cplusplus
132 }
133 #endif
134
135 #endif