IMediaExtractor.h revision b2487f03f12dcafdb801fc0007c8df8412397f44
1b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen/* 2b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * Copyright (C) 2009 The Android Open Source Project 3b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * 4b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * Licensed under the Apache License, Version 2.0 (the "License"); 5b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * you may not use this file except in compliance with the License. 6b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * You may obtain a copy of the License at 7b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * 8b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * http://www.apache.org/licenses/LICENSE-2.0 9b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * 10b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * Unless required by applicable law or agreed to in writing, software 11b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * distributed under the License is distributed on an "AS IS" BASIS, 12b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * See the License for the specific language governing permissions and 14b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen * limitations under the License. 15b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen */ 16b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 17b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen#ifndef IMEDIA_EXTRACTOR_BASE_H_ 18b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 19b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen#define IMEDIA_EXTRACTOR_BASE_H_ 20b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 21b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen#include <media/IMediaSource.h> 22b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 23b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissennamespace android { 24b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 25b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissenclass MetaData; 26b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 27b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissenclass IMediaExtractor : public IInterface { 28b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissenpublic: 29b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen DECLARE_META_INTERFACE(MediaExtractor); 30b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 31b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual size_t countTracks() = 0; 32b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual sp<IMediaSource> getTrack(size_t index) = 0; 33b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 34b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen enum GetTrackMetaDataFlags { 35b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen kIncludeExtensiveMetaData = 1 36b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen }; 37b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual sp<MetaData> getTrackMetaData( 38b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen size_t index, uint32_t flags = 0) = 0; 39b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 40b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen // Return container specific meta-data. The default implementation 41b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen // returns an empty metadata object. 42b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual sp<MetaData> getMetaData() = 0; 43b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 44b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen enum Flags { 45b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen CAN_SEEK_BACKWARD = 1, // the "seek 10secs back button" 46b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen CAN_SEEK_FORWARD = 2, // the "seek 10secs forward button" 47b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen CAN_PAUSE = 4, 48b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen CAN_SEEK = 8, // the "seek bar" 49b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen }; 50b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 51b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen // If subclasses do _not_ override this, the default is 52b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE 53b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual uint32_t flags() const = 0; 54b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 55b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen // for DRM 56b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual void setDrmFlag(bool flag) = 0; 57b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual bool getDrmFlag() = 0; 58b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual char* getDrmTrackInfo(size_t trackID, int *len) = 0; 59b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual void setUID(uid_t uid) = 0; 60b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 61b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual const char * name() = 0; 62b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen}; 63b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 64b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 65b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissenclass BnMediaExtractor: public BnInterface<IMediaExtractor> 66b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen{ 67b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissenpublic: 68b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, 69b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen uint32_t flags = 0); 70b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen}; 71b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 72b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 73b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen} // namespace android 74b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen 75b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen#endif // IMEDIA_EXTRACTOR_BASE_H_ 76