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      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 <media/AudioTrack.h>
     23 #include <libsonivox/eas.h>
     24 
     25 namespace android {
     26 
     27 class MidiFile : public MediaPlayerInterface {
     28 public:
     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    setVideoSurface(const sp<ISurface>& surface) { return UNKNOWN_ERROR; }
     39     virtual status_t    prepare();
     40     virtual status_t    prepareAsync();
     41     virtual status_t    start();
     42     virtual status_t    stop();
     43     virtual status_t    seekTo(int msec);
     44     virtual status_t    pause();
     45     virtual bool        isPlaying();
     46     virtual status_t    getCurrentPosition(int* msec);
     47     virtual status_t    getDuration(int* msec);
     48     virtual status_t    release();
     49     virtual status_t    reset();
     50     virtual status_t    setLooping(int loop);
     51     virtual player_type playerType() { return SONIVOX_PLAYER; }
     52     virtual status_t    invoke(const Parcel& request, Parcel *reply) {
     53         return INVALID_OPERATION;
     54     }
     55 
     56 private:
     57             status_t    createOutputTrack();
     58             status_t    reset_nosync();
     59     static  int         renderThread(void*);
     60             int         render();
     61             void        updateState(){ EAS_State(mEasData, mEasHandle, &mState); }
     62 
     63     Mutex               mMutex;
     64     Condition           mCondition;
     65     EAS_DATA_HANDLE     mEasData;
     66     EAS_HANDLE          mEasHandle;
     67     EAS_PCM*            mAudioBuffer;
     68     EAS_I32             mPlayTime;
     69     EAS_I32             mDuration;
     70     EAS_STATE           mState;
     71     EAS_FILE            mFileLocator;
     72     int                 mStreamType;
     73     bool                mLoop;
     74     volatile bool       mExit;
     75     bool                mPaused;
     76     volatile bool       mRender;
     77     pid_t               mTid;
     78 };
     79 
     80 }; // namespace android
     81 
     82 #endif // ANDROID_MIDIFILE_H
     83