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 OGG_EXTRACTOR_H_
18 
19 #define OGG_EXTRACTOR_H_
20 
21 #include <utils/Errors.h>
22 #include <media/stagefright/MediaExtractor.h>
23 
24 namespace android {
25 
26 struct AMessage;
27 class DataSource;
28 class String8;
29 
30 struct MyOggExtractor;
31 struct OggSource;
32 
33 struct OggExtractor : public MediaExtractor {
34     OggExtractor(const sp<DataSource> &source);
35 
36     virtual size_t countTracks();
37     virtual sp<MediaSource> getTrack(size_t index);
38     virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
39 
40     virtual sp<MetaData> getMetaData();
41 
42 protected:
43     virtual ~OggExtractor();
44 
45 private:
46     friend struct OggSource;
47 
48     sp<DataSource> mDataSource;
49     status_t mInitCheck;
50 
51     MyOggExtractor *mImpl;
52 
53     OggExtractor(const OggExtractor &);
54     OggExtractor &operator=(const OggExtractor &);
55 };
56 
57 bool SniffOgg(
58         const sp<DataSource> &source, String8 *mimeType, float *confidence,
59         sp<AMessage> *);
60 
61 void parseVorbisComment(
62         const sp<MetaData> &fileMeta, const char *comment, size_t commentLength);
63 
64 }  // namespace android
65 
66 #endif  // OGG_EXTRACTOR_H_
67