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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 TIMEDTEXT_PLAYER_H_
#define TIMEDTEXT_PLAYER_H_
#include <media/MediaPlayerInterface.h>
#include <media/stagefright/foundation/ABase.h>
#include <media/stagefright/foundation/AString.h>
#include "include/TimedEventQueue.h"
#include "TimedTextParser.h"
namespace android {
class MediaSource;
class AwesomePlayer;
class MediaBuffer;
class TimedTextPlayer {
public:
TimedTextPlayer(AwesomePlayer *observer,
const wp<MediaPlayerBase> &listener,
TimedEventQueue *queue);
virtual ~TimedTextPlayer();
// index: the index of the text track which will
// be turned on
status_t start(uint8_t index);
void pause();
void resume();
status_t seekTo(int64_t time_us);
void addTextSource(sp<MediaSource> source);
status_t setTimedTextTrackIndex(int32_t index);
status_t setParameter(int key, const Parcel &request);
private:
enum TextType {
kNoText = 0,
kInBandText = 1,
kOutOfBandText = 2,
};
Mutex mLock;
sp<MediaSource> mSource;
sp<DataSource> mOutOfBandSource;
bool mSeeking;
int64_t mSeekTimeUs;
bool mStarted;
sp<TimedEventQueue::Event> mTextEvent;
bool mTextEventPending;
TimedEventQueue *mQueue;
wp<MediaPlayerBase> mListener;
AwesomePlayer *mObserver;
MediaBuffer *mTextBuffer;
Parcel mData;
// for in-band timed text
Vector<sp<MediaSource> > mTextTrackVector;
// for out-of-band timed text
struct OutOfBandText {
TimedTextParser::FileType type;
sp<DataSource> source;
};
Vector<OutOfBandText > mTextOutOfBandVector;
sp<TimedTextParser> mTextParser;
AString mText;
TextType mTextType;
void reset();
void onTextEvent();
void postTextEvent(int64_t delayUs = -1);
void cancelTextEvent();
void notifyListener(int msg, const Parcel *parcel = NULL);
status_t extractAndAppendLocalDescriptions(int64_t timeUs);
status_t extractAndSendGlobalDescriptions();
DISALLOW_EVIL_CONSTRUCTORS(TimedTextPlayer);
};
} // namespace android
#endif // TIMEDTEXT_PLAYER_H_
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