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 27namespace android { 28 29class FileSource : public DataSource { 30public: 31 FileSource(const char *filename); 32 FileSource(int fd, int64_t offset, int64_t length); 33 34 virtual status_t initCheck() const; 35 36 virtual ssize_t readAt(off_t offset, void *data, size_t size); 37 38 virtual status_t getSize(off_t *size); 39 40protected: 41 virtual ~FileSource(); 42 43private: 44 FILE *mFile; 45 int64_t mOffset; 46 int64_t mLength; 47 Mutex mLock; 48 49 FileSource(const FileSource &); 50 FileSource &operator=(const FileSource &); 51}; 52 53} // namespace android 54 55#endif // FILE_SOURCE_H_ 56 57