1/* 2 * Copyright (C) 2009 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 FILE_SOURCE_H_ 18 19#define FILE_SOURCE_H_ 20 21#include <stdio.h> 22 23#include <media/stagefright/DataSource.h> 24#include <media/stagefright/MediaErrors.h> 25#include <utils/threads.h> 26#include <drm/DrmManagerClient.h> 27 28namespace android { 29 30class FileSource : public DataSource { 31public: 32 FileSource(const char *filename); 33 // FileSource takes ownership and will close the fd 34 FileSource(int fd, int64_t offset, int64_t length); 35 36 virtual status_t initCheck() const; 37 38 virtual ssize_t readAt(off64_t offset, void *data, size_t size); 39 40 virtual status_t getSize(off64_t *size); 41 42 virtual uint32_t flags() { 43 return kIsLocalFileSource; 44 } 45 46 virtual sp<DecryptHandle> DrmInitialization(const char *mime); 47 48 virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client); 49 50 virtual String8 toString() { 51 return mName; 52 } 53 54 static bool requiresDrm(int fd, int64_t offset, int64_t length, const char *mime); 55 56protected: 57 virtual ~FileSource(); 58 59private: 60 int mFd; 61 int64_t mOffset; 62 int64_t mLength; 63 Mutex mLock; 64 String8 mName; 65 66 /*for DRM*/ 67 sp<DecryptHandle> mDecryptHandle; 68 DrmManagerClient *mDrmManagerClient; 69 int64_t mDrmBufOffset; 70 ssize_t mDrmBufSize; 71 unsigned char *mDrmBuf; 72 73 ssize_t readAtDRM(off64_t offset, void *data, size_t size); 74 75 FileSource(const FileSource &); 76 FileSource &operator=(const FileSource &); 77}; 78 79} // namespace android 80 81#endif // FILE_SOURCE_H_ 82 83