1 /* 2 * Copyright (C) 2007 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 ANDROID_AUDIO_BUFFER_PROVIDER_H 18 #define ANDROID_AUDIO_BUFFER_PROVIDER_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 #include <utils/Errors.h> 23 24 namespace android { 25 // ---------------------------------------------------------------------------- 26 27 class AudioBufferProvider 28 { 29 public: 30 31 struct Buffer { 32 union { 33 void* raw; 34 short* i16; 35 int8_t* i8; 36 }; 37 size_t frameCount; 38 }; 39 ~AudioBufferProvider()40 virtual ~AudioBufferProvider() {} 41 42 virtual status_t getNextBuffer(Buffer* buffer) = 0; 43 virtual void releaseBuffer(Buffer* buffer) = 0; 44 }; 45 46 // ---------------------------------------------------------------------------- 47 }; // namespace android 48 49 #endif // ANDROID_AUDIO_BUFFER_PROVIDER_H 50