1/*
2**
3** Copyright 2008, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#ifndef ANDROID_MIDIFILE_H
19#define ANDROID_MIDIFILE_H
20
21#include <media/MediaPlayerInterface.h>
22#include <libsonivox/eas.h>
23
24namespace android {
25
26// Note that the name MidiFile is misleading; this actually represents a MIDI file player
27class MidiFile : public MediaPlayerInterface {
28public:
29                        MidiFile();
30                        ~MidiFile();
31
32    virtual status_t    initCheck();
33
34    virtual status_t    setDataSource(
35            const char* path, const KeyedVector<String8, String8> *headers);
36
37    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length);
38    virtual status_t    setVideoSurfaceTexture(
39                                const sp<ISurfaceTexture>& surfaceTexture)
40                            { return UNKNOWN_ERROR; }
41    virtual status_t    prepare();
42    virtual status_t    prepareAsync();
43    virtual status_t    start();
44    virtual status_t    stop();
45    virtual status_t    seekTo(int msec);
46    virtual status_t    pause();
47    virtual bool        isPlaying();
48    virtual status_t    getCurrentPosition(int* msec);
49    virtual status_t    getDuration(int* msec);
50    virtual status_t    release();
51    virtual status_t    reset();
52    virtual status_t    setLooping(int loop);
53    virtual player_type playerType() { return SONIVOX_PLAYER; }
54    virtual status_t    invoke(const Parcel& request, Parcel *reply) {
55        return INVALID_OPERATION;
56    }
57    virtual status_t    setParameter(int key, const Parcel &request) {
58        return INVALID_OPERATION;
59    }
60    virtual status_t    getParameter(int key, Parcel *reply) {
61        return INVALID_OPERATION;
62    }
63
64
65private:
66            status_t    createOutputTrack();
67            status_t    reset_nosync();
68            int         render();
69            void        updateState(){ EAS_State(mEasData, mEasHandle, &mState); }
70
71    Mutex               mMutex;
72    Condition           mCondition;
73    EAS_DATA_HANDLE     mEasData;
74    EAS_HANDLE          mEasHandle;
75    EAS_PCM*            mAudioBuffer;
76    EAS_I32             mPlayTime;
77    EAS_I32             mDuration;
78    EAS_STATE           mState;
79    EAS_FILE            mFileLocator;
80    audio_stream_type_t mStreamType;
81    bool                mLoop;
82    volatile bool       mExit;
83    bool                mPaused;
84    volatile bool       mRender;
85    pid_t               mTid;
86
87    class MidiFileThread : public Thread {
88    public:
89        MidiFileThread(MidiFile *midiPlayer) : mMidiFile(midiPlayer) {
90        }
91
92    protected:
93        virtual ~MidiFileThread() {}
94
95    private:
96        MidiFile *mMidiFile;
97
98        bool threadLoop() {
99            int result;
100            result = mMidiFile->render();
101            return false;
102        }
103
104        MidiFileThread(const MidiFileThread &);
105        MidiFileThread &operator=(const MidiFileThread &);
106    };
107
108    sp<MidiFileThread> mThread;
109};
110
111}; // namespace android
112
113#endif // ANDROID_MIDIFILE_H
114