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 sp<DecryptHandle> DrmInitialization(const char *mime);
43
44    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
45
46    virtual String8 toString() {
47        return mName;
48    }
49
50protected:
51    virtual ~FileSource();
52
53private:
54    int mFd;
55    int64_t mOffset;
56    int64_t mLength;
57    Mutex mLock;
58    String8 mName;
59
60    /*for DRM*/
61    sp<DecryptHandle> mDecryptHandle;
62    DrmManagerClient *mDrmManagerClient;
63    int64_t mDrmBufOffset;
64    ssize_t mDrmBufSize;
65    unsigned char *mDrmBuf;
66
67    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
68
69    FileSource(const FileSource &);
70    FileSource &operator=(const FileSource &);
71};
72
73}  // namespace android
74
75#endif  // FILE_SOURCE_H_
76
77