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62 lines
1.3 KiB
62 lines
1.3 KiB
15 years ago
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/*
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basic synchronisation Classs
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Copyright (C) 2000 Martin Vogt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation.
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For more information look at the file COPYRIGHT in this package
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*/
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#ifndef __SYNCCLOCK_H
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#define __SYNCCLOCK_H
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#include "timeWrapper.h"
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#include "abstract/abs_thread.h"
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#include "timeStamp.h"
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#include <errno.h>
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#define __SYNC_NONE 0
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#define __SYNC_AUDIO 1
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#define __SYNC_VIDEO 2
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#define __SYNC_BOTH 3
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/**
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The idea is similar to this:
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We start a clock and selext a synchronisation mode.
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(AUDIO,VIDEO,BOTH,NONE)
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Assume we select AUDIO. When the audio thread delivers an SCR
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and an PTS, we set the SCR from this set, as the new
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time reference fo rthis clock.
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If a video thread enters the class, with an SCR,PTS we wait,
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or directly return if the PTS is in time or out of time,
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but we never set the SCR.
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*/
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class SyncClock {
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public:
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SyncClock();
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virtual ~SyncClock();
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virtual int getSyncMode();
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virtual void setSyncMode(int syncMode);
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virtual int syncAudio(double pts,double scr);
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virtual int syncVideo(double pts,double scr,
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class TimeStamp* earlyTime,
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class TimeStamp* waitTime);
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virtual void print(char* text);
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};
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#endif
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