JetPlayer.h revision 5e07b5774c8b376776caa4f5b0a193767697e97e 
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    static  int         renderThread(void*);
69    int                 render();
70    void                fireUpdateOnStatusChange();
71    void                fireEventsFromJetQueue();
72
73    JetPlayer() {} // no default constructor
74    void dump();
75    void dumpJetStatus(S_JET_STATUS* pJetStatus);
76
77    jetevent_callback   mEventCallback;
78
79    jobject             mJavaJetPlayerRef;
80    Mutex               mMutex; // mutex to sync the render and playback thread with the JET calls
81    pid_t               mTid;
82    Condition           mCondition;
83    volatile bool       mRender;
84    bool                mPaused;
85
86    EAS_STATE           mState;
87    int*                mMemFailedVar;
88
89    int                 mMaxTracks; // max number of MIDI tracks, usually 32
90    EAS_DATA_HANDLE     mEasData;
91    EAS_FILE_LOCATOR    mEasJetFileLoc;
92    EAS_PCM*            mAudioBuffer;// EAS renders the MIDI data into this buffer,
93    AudioTrack*         mAudioTrack; // and we play it in this audio track
94    int                 mTrackBufferSize;
95    S_JET_STATUS        mJetStatus;
96    S_JET_STATUS        mPreviousJetStatus;
97
98    char                mJetFilePath[256];
99
100
101}; // end class JetPlayer
102
103} // end namespace android
104
105
106
107#endif /*JETPLAYER_H_*/
108