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