FLACExtractor.h revision a48a51c056198a778755cbed52884dc30b74ac0a 
1/*
2 * Copyright (C) 2011 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 FLAC_EXTRACTOR_H_
18#define FLAC_EXTRACTOR_H_
19
20#include <media/stagefright/DataSource.h>
21#include <media/stagefright/MediaExtractor.h>
22#include <utils/String8.h>
23
24namespace android {
25
26class FLACParser;
27
28class FLACExtractor : public MediaExtractor {
29
30public:
31    // Extractor assumes ownership of source
32    FLACExtractor(const sp<DataSource> &source);
33
34    virtual size_t countTracks();
35    virtual sp<IMediaSource> getTrack(size_t index);
36    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
37
38    virtual sp<MetaData> getMetaData();
39    virtual const char * name() { return "FLACExtractor"; }
40
41protected:
42    virtual ~FLACExtractor();
43
44private:
45    sp<DataSource> mDataSource;
46    sp<FLACParser> mParser;
47    status_t mInitCheck;
48    sp<MetaData> mFileMetadata;
49
50    // There is only one track
51    sp<MetaData> mTrackMetadata;
52
53    status_t init();
54
55    FLACExtractor(const FLACExtractor &);
56    FLACExtractor &operator=(const FLACExtractor &);
57
58};
59
60bool SniffFLAC(const sp<DataSource> &source, String8 *mimeType,
61        float *confidence, sp<AMessage> *);
62
63}  // namespace android
64
65#endif  // FLAC_EXTRACTOR_H_
66