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/DataSource.h> 24 #include <media/stagefright/MediaErrors.h> 25 #include <utils/threads.h> 26 #include <drm/DrmManagerClient.h> 27 28 namespace android { 29 30 class FileSource : public DataSource { 31 public: 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 String8 toString() { 49 return mName; 50 } 51 52 static bool requiresDrm(int fd, int64_t offset, int64_t length, const char *mime); 53 54 protected: 55 virtual ~FileSource(); 56 57 private: 58 int mFd; 59 int64_t mOffset; 60 int64_t mLength; 61 Mutex mLock; 62 String8 mName; 63 64 /*for DRM*/ 65 sp<DecryptHandle> mDecryptHandle; 66 DrmManagerClient *mDrmManagerClient; 67 int64_t mDrmBufOffset; 68 ssize_t mDrmBufSize; 69 unsigned char *mDrmBuf; 70 71 ssize_t readAtDRM(off64_t offset, void *data, size_t size); 72 73 FileSource(const FileSource &); 74 FileSource &operator=(const FileSource &); 75 }; 76 77 } // namespace android 78 79 #endif // FILE_SOURCE_H_ 80 81
