JetPlayer.h revision 2799d743ee2ae5a25fe869a7f9c052acc029559f 
1/*
2 * Copyright (C) 2008 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 JETPLAYER_H_
18#define JETPLAYER_H_
19
20#include <utils/threads.h>
21
22#include <libsonivox/jet.h>
23#include <libsonivox/eas_types.h>
24#include <media/AudioTrack.h>
25
26
27namespace android {
28
29typedef void (*jetevent_callback)(int eventType, int val1, int val2, void *cookie);
30
31class JetPlayer {
32
33public:
34
35    // to keep in sync with the JetPlayer class constants
36    // defined in frameworks/base/media/java/android/media/JetPlayer.java
37    static const int JET_EVENT                   = 1;
38    static const int JET_USERID_UPDATE           = 2;
39    static const int JET_NUMQUEUEDSEGMENT_UPDATE = 3;
40    static const int JET_PAUSE_UPDATE            = 4;
41
42    JetPlayer(void *javaJetPlayer,
43            int maxTracks = 32,
44            int trackBufferSize = 1200);
45    ~JetPlayer();
46    int init();
47    int release();
48
49    int loadFromFile(const char* url);
50    int loadFromFD(const int fd, const long long offset, const long long length);
51    int closeFile();
52    int play();
53    int pause();
54    int queueSegment(int segmentNum, int libNum, int repeatCount, int transpose,
55            EAS_U32 muteFlags, EAS_U8 userID);
56    int setMuteFlags(EAS_U32 muteFlags, bool sync);
57    int setMuteFlag(int trackNum, bool muteFlag, bool sync);
58    int triggerClip(int clipId);
59    int clearQueue();
60
61    void setEventCallback(jetevent_callback callback);
62
63    int getMaxTracks() { return mMaxTracks; };
64
65
66private:
67    int                 render();
68    void                fireUpdateOnStatusChange();
69    void                fireEventsFromJetQueue();
70
71    JetPlayer() {} // no default constructor
72    void dump();
73    void dumpJetStatus(S_JET_STATUS* pJetStatus);
74
75    jetevent_callback   mEventCallback;
76
77    void*               mJavaJetPlayerRef;
78    Mutex               mMutex; // mutex to sync the render and playback thread with the JET calls
79    pid_t               mTid;
80    Condition           mCondition;
81    volatile bool       mRender;
82    bool                mPaused;
83
84    EAS_STATE           mState;
85    int*                mMemFailedVar;
86
87    int                 mMaxTracks; // max number of MIDI tracks, usually 32
88    EAS_DATA_HANDLE     mEasData;
89    EAS_FILE_LOCATOR    mEasJetFileLoc;
90    EAS_PCM*            mAudioBuffer;// EAS renders the MIDI data into this buffer,
91    sp<AudioTrack>      mAudioTrack; // and we play it in this audio track
92    int                 mTrackBufferSize;
93    S_JET_STATUS        mJetStatus;
94    S_JET_STATUS        mPreviousJetStatus;
95
96    char                mJetFilePath[PATH_MAX];
97
98    class JetPlayerThread : public Thread {
99    public:
100        JetPlayerThread(JetPlayer *player) : mPlayer(player) {
101        }
102
103    protected:
104        virtual ~JetPlayerThread() {}
105
106    private:
107        JetPlayer *mPlayer;
108
109        bool threadLoop() {
110            int result;
111            result = mPlayer->render();
112            return false;
113        }
114
115        JetPlayerThread(const JetPlayerThread &);
116        JetPlayerThread &operator=(const JetPlayerThread &);
117    };
118
119    sp<JetPlayerThread> mThread;
120
121}; // end class JetPlayer
122
123} // end namespace android
124
125
126
127#endif /*JETPLAYER_H_*/
128