android_StreamPlayer.h revision d158d31a6bbb06426b71c3d097b7768bc3fb79a3 
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#include <binder/IServiceManager.h>
18
19
20//--------------------------------------------------------------------------------------------------
21namespace android {
22
23typedef void (*cb_buffAvailable_t)(const void* user, bool userIsAudioPlayer,
24        size_t bufferId, void* bufferLoc, size_t buffSize);
25
26//--------------------------------------------------------------------------------------------------
27class StreamSourceAppProxy : public BnStreamSource {
28public:
29    StreamSourceAppProxy(slAndroidBufferQueueCallback callback,
30            cb_buffAvailable_t notify,
31            const void* user, bool userIsAudioPlayer,
32            void *appContext,
33            const void *caller);
34    virtual ~StreamSourceAppProxy();
35
36    // IStreamSource implementation
37    virtual void setListener(const sp<IStreamListener> &listener);
38    virtual void setBuffers(const Vector<sp<IMemory> > &buffers);
39    virtual void onBufferAvailable(size_t index);
40
41    void receivedFromAppCommand(IStreamListener::Command cmd);
42    void receivedFromAppBuffer(size_t buffIndex, size_t buffLength);
43
44private:
45    Mutex mListenerLock;
46    sp<IStreamListener> mListener;
47    Vector<sp<IMemory> > mBuffers;
48
49    slAndroidBufferQueueCallback mCallback; // FIXME remove
50    cb_buffAvailable_t mCbNotifyBufferAvailable;
51    const void* mUser;
52    bool mUserIsAudioPlayer;
53
54    void *mAppContext;
55    const void *mCaller;
56
57    DISALLOW_EVIL_CONSTRUCTORS(StreamSourceAppProxy);
58};
59
60
61//--------------------------------------------------------------------------------------------------
62class StreamPlayer : public GenericMediaPlayer
63{
64public:
65    StreamPlayer(AudioPlayback_Parameters* params, bool hasVideo);
66    virtual ~StreamPlayer();
67
68    void registerQueueCallback(slAndroidBufferQueueCallback callback,
69            cb_buffAvailable_t notify,
70            const void* user, bool userIsAudioPlayer,
71            void *context,
72            const void *caller);
73    void appEnqueue(SLuint32 bufferId, SLuint32 length, SLuint32 event, void *pData);
74    void appClear();
75
76protected:
77    sp<StreamSourceAppProxy> mAppProxy; // application proxy for the android buffer queue source
78
79    // overridden from GenericMediaPlayer
80    virtual void onPrepare();
81
82    Mutex mAppProxyLock;
83
84private:
85    DISALLOW_EVIL_CONSTRUCTORS(StreamPlayer);
86};
87
88} // namespace android
89
90
91//--------------------------------------------------------------------------------------------------
92/*
93 * xxx_l functions are called with a lock on the CAudioPlayer mObject
94 */
95extern void android_StreamPlayer_realize_l(CAudioPlayer *ap, const notif_cbf_t cbf,
96        void* notifUser);
97extern void android_StreamPlayer_enqueue_l(CAudioPlayer *ap,
98        SLuint32 bufferId, SLuint32 length, SLuint32 event, void *pData);
99extern void android_StreamPlayer_clear_l(CAudioPlayer *ap);
100