1/* 2 * Copyright (C) 2010 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 NUPLAYER_SOURCE_H_ 18 19#define NUPLAYER_SOURCE_H_ 20 21#include "NuPlayer.h" 22 23namespace android { 24 25struct ABuffer; 26 27struct NuPlayer::Source : public RefBase { 28 enum Flags { 29 FLAG_SEEKABLE = 1, 30 FLAG_DYNAMIC_DURATION = 2, 31 }; 32 33 Source() {} 34 35 virtual void start() = 0; 36 virtual void stop() {} 37 38 // Returns OK iff more data was available, 39 // an error or ERROR_END_OF_STREAM if not. 40 virtual status_t feedMoreTSData() = 0; 41 42 virtual sp<AMessage> getFormat(bool audio); 43 44 virtual status_t dequeueAccessUnit( 45 bool audio, sp<ABuffer> *accessUnit) = 0; 46 47 virtual status_t getDuration(int64_t *durationUs) { 48 return INVALID_OPERATION; 49 } 50 51 virtual status_t seekTo(int64_t seekTimeUs) { 52 return INVALID_OPERATION; 53 } 54 55 virtual uint32_t flags() const = 0; 56 57protected: 58 virtual ~Source() {} 59 60 virtual sp<MetaData> getFormatMeta(bool audio) { return NULL; } 61 62private: 63 DISALLOW_EVIL_CONSTRUCTORS(Source); 64}; 65 66} // namespace android 67 68#endif // NUPLAYER_SOURCE_H_ 69 70