1 /*
2  * Copyright (C) 2010 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 DRM_EXTRACTOR_H_
18 
19 #define DRM_EXTRACTOR_H_
20 
21 #include <media/IMediaSource.h>
22 #include <media/stagefright/MediaExtractor.h>
23 #include <drm/DrmManagerClient.h>
24 
25 namespace android {
26 
27 struct AMessage;
28 class DataSource;
29 class SampleTable;
30 class String8;
31 class DecryptHandle;
32 
33 class DRMExtractor : public MediaExtractor {
34 public:
35     DRMExtractor(const sp<DataSource> &source, const char *mime);
36 
37     virtual size_t countTracks();
38     virtual sp<IMediaSource> getTrack(size_t index);
39     virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
40     virtual sp<MetaData> getMetaData();
name()41     virtual const char * name() { return "DRMExtractor"; }
42 
43 protected:
44     virtual ~DRMExtractor();
45 
46 private:
47     sp<DataSource> mDataSource;
48 
49     sp<IMediaExtractor> mOriginalExtractor;
50     sp<DecryptHandle> mDecryptHandle;
51     DrmManagerClient* mDrmManagerClient;
52 
53     DRMExtractor(const DRMExtractor &);
54     DRMExtractor &operator=(const DRMExtractor &);
55 };
56 
57 bool SniffDRM(
58         const sp<DataSource> &source, String8 *mimeType, float *confidence,
59             sp<AMessage> *);
60 
61 }  // namespace android
62 
63 #endif  // DRM_EXTRACTOR_H_
64 
65