GenericSource.h revision e26940f11c3f2040bced09f06a8f374b50c985fb 
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 ssize_t getSelectedTrack(media_track_type type) const;
62    virtual status_t selectTrack(size_t trackIndex, bool select);
63    virtual status_t seekTo(int64_t seekTimeUs);
64
65    virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers);
66
67protected:
68    virtual ~GenericSource();
69
70    virtual void onMessageReceived(const sp<AMessage> &msg);
71
72    virtual sp<MetaData> getFormatMeta(bool audio);
73
74private:
75    enum {
76        kWhatFetchSubtitleData,
77        kWhatFetchTimedTextData,
78        kWhatSendSubtitleData,
79        kWhatSendTimedTextData,
80        kWhatChangeAVSource,
81    };
82
83    Vector<sp<MediaSource> > mSources;
84
85    struct Track {
86        size_t mIndex;
87        sp<MediaSource> mSource;
88        sp<AnotherPacketSource> mPackets;
89    };
90
91    Track mAudioTrack;
92    Track mVideoTrack;
93    Track mSubtitleTrack;
94    Track mTimedTextTrack;
95
96    int32_t mFetchSubtitleDataGeneration;
97    int32_t mFetchTimedTextDataGeneration;
98    int64_t mDurationUs;
99    bool mAudioIsVorbis;
100    bool mIsWidevine;
101    bool mUIDValid;
102    uid_t mUID;
103
104    void initFromDataSource(const sp<DataSource> &dataSource);
105
106    void fetchTextData(
107            uint32_t what, media_track_type type,
108            int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg);
109
110    void sendTextData(
111            uint32_t what, media_track_type type,
112            int32_t curGen, sp<AnotherPacketSource> packets, sp<AMessage> msg);
113
114    sp<ABuffer> mediaBufferToABuffer(
115            MediaBuffer *mbuf,
116            media_track_type trackType,
117            int64_t *actualTimeUs = NULL);
118
119    void readBuffer(
120            media_track_type trackType,
121            int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false);
122
123    DISALLOW_EVIL_CONSTRUCTORS(GenericSource);
124};
125
126}  // namespace android
127
128#endif  // GENERIC_SOURCE_H_
129