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Alexandre Lision744f7422013-09-25 11:39:37 -04001/* Copyright (c) 2007-2008 CSIRO
2 Copyright (c) 2007-2009 Xiph.Org Foundation
3 Copyright (c) 2008 Gregory Maxwell
4 Written by Jean-Marc Valin and Gregory Maxwell */
5/**
6 @file celt.h
7 @brief Contains all the functions for encoding and decoding audio
8 */
9
10/*
11 Redistribution and use in source and binary forms, with or without
12 modification, are permitted provided that the following conditions
13 are met:
14
15 - Redistributions of source code must retain the above copyright
16 notice, this list of conditions and the following disclaimer.
17
18 - Redistributions in binary form must reproduce the above copyright
19 notice, this list of conditions and the following disclaimer in the
20 documentation and/or other materials provided with the distribution.
21
22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
26 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33*/
34
35#ifndef CELT_H
36#define CELT_H
37
38#include "opus_types.h"
39#include "opus_defines.h"
40#include "opus_custom.h"
41#include "entenc.h"
42#include "entdec.h"
43#include "arch.h"
44
45#ifdef __cplusplus
46extern "C" {
47#endif
48
49#define CELTEncoder OpusCustomEncoder
50#define CELTDecoder OpusCustomDecoder
51#define CELTMode OpusCustomMode
52
53#define _celt_check_mode_ptr_ptr(ptr) ((ptr) + ((ptr) - (const CELTMode**)(ptr)))
54
55/* Encoder/decoder Requests */
56
57#define CELT_SET_PREDICTION_REQUEST 10002
58/** Controls the use of interframe prediction.
59 0=Independent frames
60 1=Short term interframe prediction allowed
61 2=Long term prediction allowed
62 */
63#define CELT_SET_PREDICTION(x) CELT_SET_PREDICTION_REQUEST, __opus_check_int(x)
64
65#define CELT_SET_INPUT_CLIPPING_REQUEST 10004
66#define CELT_SET_INPUT_CLIPPING(x) CELT_SET_INPUT_CLIPPING_REQUEST, __opus_check_int(x)
67
68#define CELT_GET_AND_CLEAR_ERROR_REQUEST 10007
69#define CELT_GET_AND_CLEAR_ERROR(x) CELT_GET_AND_CLEAR_ERROR_REQUEST, __opus_check_int_ptr(x)
70
71#define CELT_SET_CHANNELS_REQUEST 10008
72#define CELT_SET_CHANNELS(x) CELT_SET_CHANNELS_REQUEST, __opus_check_int(x)
73
74
75/* Internal */
76#define CELT_SET_START_BAND_REQUEST 10010
77#define CELT_SET_START_BAND(x) CELT_SET_START_BAND_REQUEST, __opus_check_int(x)
78
79#define CELT_SET_END_BAND_REQUEST 10012
80#define CELT_SET_END_BAND(x) CELT_SET_END_BAND_REQUEST, __opus_check_int(x)
81
82#define CELT_GET_MODE_REQUEST 10015
83/** Get the CELTMode used by an encoder or decoder */
84#define CELT_GET_MODE(x) CELT_GET_MODE_REQUEST, _celt_check_mode_ptr_ptr(x)
85
86#define CELT_SET_SIGNALLING_REQUEST 10016
87#define CELT_SET_SIGNALLING(x) CELT_SET_SIGNALLING_REQUEST, __opus_check_int(x)
88
89
90
91/* Encoder stuff */
92
93int celt_encoder_get_size(int channels);
94
95int celt_encode_with_ec(OpusCustomEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc);
96
97int celt_encoder_init(CELTEncoder *st, opus_int32 sampling_rate, int channels);
98
99
100
101/* Decoder stuff */
102
103int celt_decoder_get_size(int channels);
104
105
106int celt_decoder_init(CELTDecoder *st, opus_int32 sampling_rate, int channels);
107
108int celt_decode_with_ec(OpusCustomDecoder * OPUS_RESTRICT st, const unsigned char *data, int len, opus_val16 * OPUS_RESTRICT pcm, int frame_size, ec_dec *dec);
109
110#define celt_encoder_ctl opus_custom_encoder_ctl
111#define celt_decoder_ctl opus_custom_decoder_ctl
112
113#ifdef __cplusplus
114}
115#endif
116
117#endif /* CELT_H */