FileSource.h revision 9d2f386dd2885eaffa11fd494ae258bb09fe6397 
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(off64_t offset, void *data, size_t size);
38
39    virtual status_t getSize(off64_t *size);
40
41    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
42
43    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
44
45protected:
46    virtual ~FileSource();
47
48private:
49    int mFd;
50    int64_t mOffset;
51    int64_t mLength;
52    Mutex mLock;
53
54    /*for DRM*/
55    sp<DecryptHandle> mDecryptHandle;
56    DrmManagerClient *mDrmManagerClient;
57    int64_t mDrmBufOffset;
58    int64_t mDrmBufSize;
59    unsigned char *mDrmBuf;
60
61    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
62
63    FileSource(const FileSource &);
64    FileSource &operator=(const FileSource &);
65};
66
67}  // namespace android
68
69#endif  // FILE_SOURCE_H_
70
71