1 /******************************************************************************
2  *
3  *  Copyright (C) 1999-2012 Broadcom Corporation
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #ifndef _SBC_IF_H
20 #define _SBC_IF_H
21 
22 #define PCM_BUFFER_SIZE 512
23 
24 /*
25  SBC_Init - called once for each track played
26 
27  pcm_sample_freq - 4000 to 48000
28  channels - 1 mono 2 stereo
29  bits_per_sample - 8 or 16
30  return - 0 sucess
31 */
32 
33 int SBC_init(int pcm_sample_freq, int channels, int bits_per_sample);
34 
35 /*
36  SBC_write - called repeatedly with pcm_in pointer
37 	increasing by length until track is finished.
38 
39  pcm_in - pointer to PCM buffer
40  length - any
41  sbc_out - pointer to SBC output buffer
42  return - number of bytes written to sbc_out
43 */
44 
45 int SBC_write(unsigned char *pcm_in, int length, unsigned char *sbc_out);
46 
47 #endif
48