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