SimplePlayer.h revision 5778822d86b0337407514b9372562b86edfa91cd 
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#include <media/stagefright/foundation/AHandler.h>
18#include <media/stagefright/foundation/AString.h>
19#include <utils/KeyedVector.h>
20
21namespace android {
22
23struct ABuffer;
24struct ALooper;
25struct AudioTrack;
26struct ISurfaceTexture;
27struct MediaCodec;
28struct NativeWindowWrapper;
29struct NuMediaExtractor;
30
31struct SimplePlayer : public AHandler {
32    SimplePlayer();
33
34    status_t setDataSource(const char *path);
35    status_t setSurface(const sp<ISurfaceTexture> &surfaceTexture);
36    status_t prepare();
37    status_t start();
38    status_t stop();
39    status_t reset();
40
41protected:
42    virtual ~SimplePlayer();
43
44    virtual void onMessageReceived(const sp<AMessage> &msg);
45
46private:
47    enum State {
48        UNINITIALIZED,
49        UNPREPARED,
50        STOPPED,
51        STARTED
52    };
53
54    enum {
55        kWhatSetDataSource,
56        kWhatSetSurface,
57        kWhatPrepare,
58        kWhatStart,
59        kWhatStop,
60        kWhatReset,
61        kWhatDoMoreStuff,
62    };
63
64    struct BufferInfo {
65        size_t mIndex;
66        size_t mOffset;
67        size_t mSize;
68        int64_t mPresentationTimeUs;
69        uint32_t mFlags;
70    };
71
72    struct CodecState
73    {
74        sp<MediaCodec> mCodec;
75        Vector<sp<ABuffer> > mCSD;
76        Vector<sp<ABuffer> > mBuffers[2];
77
78        List<size_t> mAvailInputBufferIndices;
79        List<BufferInfo> mAvailOutputBufferInfos;
80
81        sp<AudioTrack> mAudioTrack;
82        uint32_t mNumFramesWritten;
83    };
84
85    State mState;
86    AString mPath;
87    sp<NativeWindowWrapper> mNativeWindow;
88
89    sp<NuMediaExtractor> mExtractor;
90    sp<ALooper> mCodecLooper;
91    KeyedVector<size_t, CodecState> mStateByTrackIndex;
92    int32_t mDoMoreStuffGeneration;
93
94    int64_t mStartTimeRealUs;
95
96    status_t onPrepare();
97    status_t onStart();
98    status_t onStop();
99    status_t onReset();
100    status_t onDoMoreStuff();
101    status_t onOutputFormatChanged(size_t trackIndex, CodecState *state);
102
103    void renderAudio(
104            CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer);
105
106    DISALLOW_EVIL_CONSTRUCTORS(SimplePlayer);
107};
108
109}  // namespace android
110