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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ANDROID_GENERICMEDIAPLAYER_H__
#define __ANDROID_GENERICMEDIAPLAYER_H__
#include "android_GenericPlayer.h"
#include <binder/IServiceManager.h>
#include <gui/IGraphicBufferProducer.h>
//--------------------------------------------------------------------------------------------------
namespace android {
class GenericMediaPlayer;
class MediaPlayerNotificationClient : public BnMediaPlayerClient
{
public:
MediaPlayerNotificationClient(GenericMediaPlayer* gmp);
// IMediaPlayerClient implementation
virtual void notify(int msg, int ext1, int ext2, const Parcel *obj);
// Call before enqueuing a prepare event
void beforePrepare();
// Call after enqueueing the prepare event; returns true if the prepare
// completed successfully, or false if it completed unsuccessfully
bool blockUntilPlayerPrepared();
protected:
virtual ~MediaPlayerNotificationClient();
private:
const wp<GenericMediaPlayer> mGenericMediaPlayer;
Mutex mLock; // protects mPlayerPrepared
Condition mPlayerPreparedCondition; // signalled when mPlayerPrepared is changed
enum {
PREPARE_NOT_STARTED,
PREPARE_IN_PROGRESS,
PREPARE_COMPLETED_SUCCESSFULLY,
PREPARE_COMPLETED_UNSUCCESSFULLY
} mPlayerPrepared;
};
class MediaPlayerDeathNotifier : public IMediaDeathNotifier {
public:
MediaPlayerDeathNotifier(const sp<MediaPlayerNotificationClient> playerClient) :
mPlayerClient(playerClient) {
}
void died() {
mPlayerClient->notify(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, 0, NULL);
}
protected:
virtual ~MediaPlayerDeathNotifier() { }
private:
const sp<MediaPlayerNotificationClient> mPlayerClient;
};
//--------------------------------------------------------------------------------------------------
class GenericMediaPlayer : public GenericPlayer
{
public:
GenericMediaPlayer(const AudioPlayback_Parameters* params, bool hasVideo);
virtual ~GenericMediaPlayer();
virtual void preDestroy();
// overridden from GenericPlayer
virtual void getPositionMsec(int* msec); // ANDROID_UNKNOWN_TIME if unknown
virtual void setVideoSurfaceTexture(const sp<IGraphicBufferProducer> &bufferProducer);
virtual void setPlaybackRate(int32_t ratePermille);
protected:
friend class MediaPlayerNotificationClient;
// Async event handlers (called from GenericPlayer's event loop)
virtual void onPrepare();
virtual void onPlay();
virtual void onPause();
virtual void onSeek(const sp<AMessage> &msg);
virtual void onLoop(const sp<AMessage> &msg);
virtual void onSeekComplete();
virtual void onVolumeUpdate();
virtual void onBufferingUpdate(const sp<AMessage> &msg);
virtual void onAttachAuxEffect(const sp<AMessage> &msg);
virtual void onSetAuxEffectSendLevel(const sp<AMessage> &msg);
const bool mHasVideo; // const allows MediaPlayerNotificationClient::notify to safely access
int32_t mSeekTimeMsec;
sp<IGraphicBufferProducer> mVideoSurfaceTexture;
// only safe to access from within Realize and looper
sp<IMediaPlayer> mPlayer;
// Receives Android MediaPlayer events from mPlayer
const sp<MediaPlayerNotificationClient> mPlayerClient;
// Receives notifications about death of media.player service
const sp<MediaPlayerDeathNotifier> mPlayerDeathNotifier;
// Return a reference to the media player service, or ALOGE and return NULL after retries fail
static const sp<IMediaPlayerService> getMediaPlayerService() {
return IMediaDeathNotifier::getMediaPlayerService();
}
private:
DISALLOW_EVIL_CONSTRUCTORS(GenericMediaPlayer);
void afterMediaPlayerPreparedSuccessfully();
protected: // FIXME temporary
Mutex mPreparedPlayerLock; // protects mPreparedPlayer
sp<IMediaPlayer> mPreparedPlayer; // non-NULL if MediaPlayer exists and prepared, write once
private:
void getPreparedPlayer(sp<IMediaPlayer> &preparedPlayer); // safely read mPreparedPlayer
};
} // namespace android
// is the specified URI a known distant protocol?
bool isDistantProtocol(const char *uri);
#endif /* __ANDROID_GENERICMEDIAPLAYER_H__ */