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<IMediaSource> getTrack(size_t index);
38     virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
39 
40     virtual sp<MetaData> getMetaData();
nameOggExtractor41     virtual const char * name() { return "OggExtractor"; }
42 
43 protected:
44     virtual ~OggExtractor();
45 
46 private:
47     friend struct OggSource;
48 
49     sp<DataSource> mDataSource;
50     status_t mInitCheck;
51 
52     MyOggExtractor *mImpl;
53 
54     OggExtractor(const OggExtractor &);
55     OggExtractor &operator=(const OggExtractor &);
56 };
57 
58 bool SniffOgg(
59         const sp<DataSource> &source, String8 *mimeType, float *confidence,
60         sp<AMessage> *);
61 
62 void parseVorbisComment(
63         const sp<MetaData> &fileMeta, const char *comment, size_t commentLength);
64 
65 }  // namespace android
66 
67 #endif  // OGG_EXTRACTOR_H_
68