JetPlayer.h revision a23856c0ad1f49a6ebcb71d3f63f329edc999a72 
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#include <nativehelper/jni.h>
22
23#include <libsonivox/jet.h>
24#include <libsonivox/eas_types.h>
25#include "AudioTrack.h"
26
27
28namespace android {
29
30typedef void (*jetevent_callback)(int eventType, int val1, int val2, void *cookie);
31
32class JetPlayer {
33
34public:
35
36    // to keep in sync with the JetPlayer class constants
37    // defined in frameworks/base/media/java/android/media/JetPlayer.java
38    static const int JET_EVENT                   = 1;
39    static const int JET_USERID_UPDATE           = 2;
40    static const int JET_NUMQUEUEDSEGMENT_UPDATE = 3;
41    static const int JET_PAUSE_UPDATE            = 4;
42
43    JetPlayer(jobject javaJetPlayer,
44            int maxTracks = 32,
45            int trackBufferSize = 1200);
46    ~JetPlayer();
47    int init();
48    int release();
49
50    int loadFromFile(const char* url);
51    int loadFromFD(const int fd, const long long offset, const long long length);
52    int closeFile();
53    int play();
54    int pause();
55    int queueSegment(int segmentNum, int libNum, int repeatCount, int transpose,
56            EAS_U32 muteFlags, EAS_U8 userID);
57    int setMuteFlags(EAS_U32 muteFlags, bool sync);
58    int setMuteFlag(int trackNum, bool muteFlag, bool sync);
59    int triggerClip(int clipId);
60    int clearQueue();
61
62    void setEventCallback(jetevent_callback callback);
63
64    int getMaxTracks() { return mMaxTracks; };
65
66
67private:
68    int                 render();
69    void                fireUpdateOnStatusChange();
70    void                fireEventsFromJetQueue();
71
72    JetPlayer() {} // no default constructor
73    void dump();
74    void dumpJetStatus(S_JET_STATUS* pJetStatus);
75
76    jetevent_callback   mEventCallback;
77
78    jobject             mJavaJetPlayerRef;
79    Mutex               mMutex; // mutex to sync the render and playback thread with the JET calls
80    pid_t               mTid;
81    Condition           mCondition;
82    volatile bool       mRender;
83    bool                mPaused;
84
85    EAS_STATE           mState;
86    int*                mMemFailedVar;
87
88    int                 mMaxTracks; // max number of MIDI tracks, usually 32
89    EAS_DATA_HANDLE     mEasData;
90    EAS_FILE_LOCATOR    mEasJetFileLoc;
91    EAS_PCM*            mAudioBuffer;// EAS renders the MIDI data into this buffer,
92    AudioTrack*         mAudioTrack; // and we play it in this audio track
93    int                 mTrackBufferSize;
94    S_JET_STATUS        mJetStatus;
95    S_JET_STATUS        mPreviousJetStatus;
96
97    char                mJetFilePath[256];
98
99    class JetPlayerThread : public Thread {
100    public:
101        JetPlayerThread(JetPlayer *player) : mPlayer(player) {
102        }
103
104    protected:
105        virtual ~JetPlayerThread() {}
106
107    private:
108        JetPlayer *mPlayer;
109
110        bool threadLoop() {
111            int result;
112            result = mPlayer->render();
113            return false;
114        }
115
116        JetPlayerThread(const JetPlayerThread &);
117        JetPlayerThread &operator=(const JetPlayerThread &);
118    };
119
120    sp<JetPlayerThread> mThread;
121
122}; // end class JetPlayer
123
124} // end namespace android
125
126
127
128#endif /*JETPLAYER_H_*/
129