20cb94eeb5
MediaPlayer.java has 3 new methods: * newRequest creates a Parcel that can be used to send data to the native player using invoke. * invoke issues synchronous calls to the native player using opaque parcels for the request and reply. IMediaPlayer.h has 1 new abstract method: * invoke The Midi and Vorbis players have a stub for these. So far only PV makes use of that new feature. To avoid any copy overhead, the JNI interface uses Parcel as a java object (no serialization/copy happens at the JNI layer). The remote interface token is inserted when the Parcel is constructed in java. That way the parcel is already routable when it reaches IMediaPlayer.cpp (proxy). No extra copy is needed there.
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
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**
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_MIDIFILE_H
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#define ANDROID_MIDIFILE_H
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#include <media/MediaPlayerInterface.h>
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#include <media/AudioTrack.h>
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#include <libsonivox/eas.h>
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namespace android {
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class MidiFile : public MediaPlayerInterface {
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public:
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MidiFile();
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~MidiFile();
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virtual status_t initCheck();
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virtual status_t setDataSource(const char* path);
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virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
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virtual status_t setVideoSurface(const sp<ISurface>& surface) { return UNKNOWN_ERROR; }
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virtual status_t prepare();
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virtual status_t prepareAsync();
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virtual status_t start();
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virtual status_t stop();
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virtual status_t seekTo(int msec);
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virtual status_t pause();
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virtual bool isPlaying();
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virtual status_t getCurrentPosition(int* msec);
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virtual status_t getDuration(int* msec);
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virtual status_t release();
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virtual status_t reset();
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virtual status_t setLooping(int loop);
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virtual player_type playerType() { return SONIVOX_PLAYER; }
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virtual status_t invoke(const Parcel& request, Parcel *reply) {return INVALID_OPERATION;}
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private:
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status_t createOutputTrack();
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status_t reset_nosync();
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static int renderThread(void*);
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int render();
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void updateState(){ EAS_State(mEasData, mEasHandle, &mState); }
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Mutex mMutex;
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Condition mCondition;
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EAS_DATA_HANDLE mEasData;
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EAS_HANDLE mEasHandle;
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EAS_PCM* mAudioBuffer;
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EAS_I32 mPlayTime;
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EAS_I32 mDuration;
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EAS_STATE mState;
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EAS_FILE mFileLocator;
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int mStreamType;
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bool mLoop;
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volatile bool mExit;
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bool mPaused;
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volatile bool mRender;
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pid_t mTid;
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};
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}; // namespace android
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#endif // ANDROID_MIDIFILE_H
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