xref: /btstack/src/classic/hfp_msbc.h (revision bc37f7b0d0a3eaa5763a873c5730bc14b849aaa0)
1 /*
2  * Copyright (C) 2014 BlueKitchen GmbH
3  *
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  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holders nor the names of
14  *    contributors may be used to endorse or promote products derived
15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
17  *    personal benefit and not for any commercial purpose or for
18  *    monetary gain.
19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * Please inquire about commercial licensing options at
34  * [email protected]
35  *
36  */
37 
38 // *****************************************************************************
39 //
40 // HFP mSBC encoder wrapper
41 //
42 // *****************************************************************************
43 
44 #ifndef __HFP_MSBC_H
45 #define __HFP_MSBC_H
46 
47 #include "btstack_config.h"
48 
49 #include <stdint.h>
50 
51 #if defined __cplusplus
52 extern "C" {
53 #endif
54 
55 /* API_START */
56 
57 /**
58  *
59  */
60 void hfp_msbc_init(void);
61 
62 /**
63  *
64  */
65 int  hfp_msbc_num_audio_samples_per_frame(void);
66 
67 /**
68  *
69  */
70 int  hfp_msbc_can_encode_audio_frame_now(void);
71 
72 /**
73  * @param pcm_samples - complete audio frame of hfp_msbc_num_audio_samples_per_frame int16 samples
74  */
75 void hfp_msbc_encode_audio_frame(int16_t * pcm_samples);
76 
77 /**
78  *
79  */
80 int  hfp_msbc_num_bytes_in_stream(void);
81 
82 /**
83  *
84  * @param buffer to store stream
85  * @param size num bytes to read from stream
86  */
87 void hfp_msbc_read_from_stream(uint8_t * buffer, int size);
88 
89 /* API_END */
90 
91 #if defined __cplusplus
92 }
93 #endif
94 
95 #endif
96