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 AAC_EXTRACTOR_H_
18
19#define AAC_EXTRACTOR_H_
20
21#include <media/MediaExtractor.h>
22#include <media/stagefright/MetaDataBase.h>
23
24#include <utils/Vector.h>
25
26namespace android {
27
28struct AMessage;
29class String8;
30
31class AACExtractor : public MediaExtractor {
32public:
33    AACExtractor(DataSourceBase *source, off64_t offset);
34
35    virtual size_t countTracks();
36    virtual MediaTrack *getTrack(size_t index);
37    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
38
39    virtual status_t getMetaData(MetaDataBase& meta);
40    virtual const char * name() { return "AACExtractor"; }
41
42protected:
43    virtual ~AACExtractor();
44
45private:
46    DataSourceBase *mDataSource;
47    MetaDataBase mMeta;
48    status_t mInitCheck;
49
50    Vector<uint64_t> mOffsetVector;
51    int64_t mFrameDurationUs;
52
53    AACExtractor(const AACExtractor &);
54    AACExtractor &operator=(const AACExtractor &);
55};
56
57bool SniffAAC(
58        DataSourceBase *source, String8 *mimeType, float *confidence, off64_t *offset);
59
60}  // namespace android
61
62#endif  // AAC_EXTRACTOR_H_
63