1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _Included_org_drrickorang_loopback_byte_buffer 18 #define _Included_org_drrickorang_loopback_byte_buffer 19 20 #include <sys/types.h> 21 22 // Introduce a dedicated type because the destination buffer 23 // is special, and needs to be obtained from the Java side. 24 typedef char* byte_buffer_t; 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 // Writes data to a ByteBuffer for consumption on the Java side 31 // via PipeByteBuffer class. The function assumes sample size being "short". 32 // Returns the actual number of frames written. 33 ssize_t byteBuffer_write(byte_buffer_t byteBuffer, size_t byteBufferSize, 34 const char *srcBuffer, size_t frameCount, int channels); 35 36 #ifdef __cplusplus 37 } 38 #endif 39 40 #endif // _Included_org_drrickorang_loopback_byte_buffer 41