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152 lines
3.3 KiB
152 lines
3.3 KiB
/*
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generic output class
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Copyright (C) 1999 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 __OUTPUTSTREAM_H
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#define __OUTPUTSTREAM_H
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#include "../util/timeStamp.h"
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#include "pluginInfo.h"
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#include "../util/render/pictureArray.h"
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#include "../util/abstract/abs_thread.h"
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#include <kdemacros.h>
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#define _OUTPUT_WAIT_METHOD_BLOCK 1
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#define _OUTPUT_WAIT_METHOD_POLL 2
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#define _OUTPUT_WAIT_METHOD_CALLBACK 3
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#define _STREAM_MASK_IS_INIT 1
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#define _STREAM_MASK_IS_EOF 2
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#define _STREAM_MASK_IS_DATA 4
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#define _STREAM_MASK_ALL 1+2+4
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#define _STREAMTYPE_AUDIO 1
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#define _STREAMTYPE_VIDEO 2
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/**
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Outputstream. A nice base class. Mostly obvious methods,
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except PictureArray.
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write your picture into this structure
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and then put it on the surface with the unlock call.
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*/
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/**
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life of stream states:
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--------------
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method flag additional calls
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construct audioInit()
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destruct audioInit()
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audioInit isInit=false
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isEof=false
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isData=false
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audioSetup isInit=true
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audioFlush isEof=true
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audioPlay isData=true
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Note: after a call of streamInit we have an "invalid" state
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obviously there is no stream where eof==false but
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and has not been initialised.
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another invalid state is audioInit->audioPlay
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*/
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class KDE_EXPORT OutputStream {
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int audioState;
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int videoState;
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abs_thread_mutex_t stateChangeMut;
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abs_thread_cond_t stateChangeCond;
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public:
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OutputStream();
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virtual ~OutputStream();
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// Audio Stream handling
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virtual int audioInit();
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virtual int audioSetup(int freq,int stereo,int sign,int big,int sampleSize);
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virtual int audioPlay(TimeStamp* startStamp,
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TimeStamp* endStamp,char *buffer, int size);
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virtual void audioFlush();
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// Audio device "/dev/dsp" handling
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virtual void audioClose();
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virtual void audioOpen();
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// hack: FIX it
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virtual int getPreferredDeliverSize();
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// stream State handling
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// we return the mask which triggerd (by "AND")
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// or the current polled mask when method is POLL
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// Note: you can only wait for "true" signals
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virtual int waitStreamState(int method,int mask,int streamType);
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// Video Output
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virtual int videoInit();
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virtual int openWindow(int width, int height,const char *title);
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virtual int x11WindowId();
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virtual void closeWindow();
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virtual void flushWindow();
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// get the current surfaces to draw into
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virtual PictureArray* lockPictureArray();
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virtual void unlockPictureArray(PictureArray* pictureArray);
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// maybe not needed:
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virtual int getFrameusec();
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virtual int getOutputInit();
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virtual void setOutputInit(int lInit);
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// Info Output
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virtual void writeInfo(class PluginInfo* pluginInfo);
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// config Output
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virtual void config(const char* key,
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const char* value,void* user_data);
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private:
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void initStream();
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protected:
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// sometimes useful, but use with care
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void sendSignal(int signal,int value,int streamType);
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};
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#endif
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