FileSource.h revision dcd25efb46c41c8d24a0a9cf61fb57f84149709e
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(int fd, int64_t offset, int64_t length); 34 35 virtual status_t initCheck() const; 36 37 virtual ssize_t readAt(off_t offset, void *data, size_t size); 38 39 virtual status_t getSize(off_t *size); 40 41 virtual DecryptHandle* DrmInitialization(DrmManagerClient *client); 42 43 virtual void getDrmInfo(DecryptHandle **handle, DrmManagerClient **client); 44 45protected: 46 virtual ~FileSource(); 47 48private: 49 FILE *mFile; 50 int mFd; 51 int64_t mOffset; 52 int64_t mLength; 53 Mutex mLock; 54 55 /*for DRM*/ 56 DecryptHandle *mDecryptHandle; 57 DrmManagerClient *mDrmManagerClient; 58 int64_t mDrmBufOffset; 59 int64_t mDrmBufSize; 60 unsigned char *mDrmBuf; 61 62 ssize_t readAtDRM(off_t offset, void *data, size_t size); 63 64 FileSource(const FileSource &); 65 FileSource &operator=(const FileSource &); 66}; 67 68} // namespace android 69 70#endif // FILE_SOURCE_H_ 71 72