MPEG2TSExtractor.h revision 27c174483a8ae9688d5d4897c19074f62c7f1701 
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 MPEG2_TS_EXTRACTOR_H_
18
19#define MPEG2_TS_EXTRACTOR_H_
20
21#include <media/stagefright/foundation/ABase.h>
22#include <media/stagefright/MediaExtractor.h>
23#include <utils/threads.h>
24#include <utils/Vector.h>
25
26namespace android {
27
28struct AMessage;
29struct AnotherPacketSource;
30struct ATSParser;
31struct DataSource;
32struct MPEG2TSSource;
33struct String8;
34struct LiveSession;
35
36struct MPEG2TSExtractor : public MediaExtractor {
37    MPEG2TSExtractor(const sp<DataSource> &source);
38
39    virtual size_t countTracks();
40    virtual sp<MediaSource> getTrack(size_t index);
41    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
42
43    virtual sp<MetaData> getMetaData();
44
45    virtual uint32_t flags() const;
46
47    void setLiveSession(const sp<LiveSession> &liveSession);
48    void seekTo(int64_t seekTimeUs);
49
50private:
51    friend struct MPEG2TSSource;
52
53    mutable Mutex mLock;
54
55    sp<DataSource> mDataSource;
56    sp<LiveSession> mLiveSession;
57
58    sp<ATSParser> mParser;
59
60    Vector<sp<AnotherPacketSource> > mSourceImpls;
61
62    off64_t mOffset;
63
64    void init();
65    status_t feedMore();
66
67    DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor);
68};
69
70bool SniffMPEG2TS(
71        const sp<DataSource> &source, String8 *mimeType, float *confidence,
72        sp<AMessage> *);
73
74}  // namespace android
75
76#endif  // MPEG2_TS_EXTRACTOR_H_
77