GenericSource.h revision 05312bc7478feec11d9ae88e951c0857a7a3f28d 
1/*
2 * Copyright (C) 2012 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 GENERIC_SOURCE_H_
18
19#define GENERIC_SOURCE_H_
20
21#include "NuPlayer.h"
22#include "NuPlayerSource.h"
23
24#include "ATSParser.h"
25
26#include <media/mediaplayer.h>
27
28namespace android {
29
30struct AnotherPacketSource;
31struct ARTSPController;
32struct DataSource;
33struct MediaSource;
34class MediaBuffer;
35
36struct NuPlayer::GenericSource : public NuPlayer::Source {
37    GenericSource(
38            const sp<AMessage> &notify,
39            const sp<IMediaHTTPService> &httpService,
40            const char *url,
41            const KeyedVector<String8, String8> *headers,
42            bool isWidevine = false,
43            bool uidValid = false,
44            uid_t uid = 0);
45
46    GenericSource(
47            const sp<AMessage> &notify,
48            int fd, int64_t offset, int64_t length);
49
50    virtual void prepareAsync();
51
52    virtual void start();
53
54    virtual status_t feedMoreTSData();
55
56    virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
57
58    virtual status_t getDuration(int64_t *durationUs);
59    virtual size_t getTrackCount() const;
60    virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
61    virtual status_t selectTrack(size_t trackIndex, bool select);
62    virtual status_t seekTo(int64_t seekTimeUs);
63
64    virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers);
65
66protected:
67    virtual ~GenericSource();
68
69    virtual void onMessageReceived(const sp<AMessage> &msg);
70
71    virtual sp<MetaData> getFormatMeta(bool audio);
72
73private:
74    enum {
75        kWhatFetchSubtitleData,
76        kWhatSendSubtitleData,
77        kWhatChangeAVSource,
78    };
79
80    Vector<sp<MediaSource> > mSources;
81
82    struct Track {
83        size_t mIndex;
84        sp<MediaSource> mSource;
85        sp<AnotherPacketSource> mPackets;
86    };
87
88    Track mAudioTrack;
89    Track mVideoTrack;
90    Track mSubtitleTrack;
91
92    int32_t mFetchSubtitleDataGeneration;
93    int64_t mDurationUs;
94    bool mAudioIsVorbis;
95    bool mIsWidevine;
96    bool mUIDValid;
97    uid_t mUID;
98
99    void initFromDataSource(const sp<DataSource> &dataSource);
100
101    sp<ABuffer> mediaBufferToABuffer(
102            MediaBuffer *mbuf,
103            media_track_type trackType,
104            int64_t *actualTimeUs = NULL);
105
106    void readBuffer(
107            media_track_type trackType,
108            int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false);
109
110    DISALLOW_EVIL_CONSTRUCTORS(GenericSource);
111};
112
113}  // namespace android
114
115#endif  // GENERIC_SOURCE_H_
116