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
