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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /mpeglib/lib/output/artsOutputStream.h
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/mpeglib/lib/output/artsOutputStream.h b/mpeglib/lib/output/artsOutputStream.h
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+/*
+ output to arts
+ Copyright (C) 2000 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 __ARTSOUTPUTSTREAM_H
+#define __ARTSOUTPUTSTREAM_H
+
+#include "outputStream.h"
+#include "../input/bufferInputStream.h"
+#include "audioTime.h"
+
+
+class WindowOut;
+class AVSyncer;
+
+
+
+
+/**
+ a word about synchronisation: Arts currently has not asynchronous
+ starting of stream, which means, poll if stream is initialized
+ or set a callbackfunction.
+
+ mpeglib is threaded and would not have much problems
+ with a "callback" but currently we only support blocking wait
+ for initilisation.
+
+ I think, if people realize that smooth mixing of streams
+ is impossible(because of the blocking start behaviour),
+ this will become a desired feature :-)
+
+*/
+
+
+/**
+ This class offers a blocking device, its behaviour is similar
+ to /dev/dsp we use a buffer to store the pcm data, if
+ we open/close the buffer the stored data is removed
+ and the blocking thread is "kicked"
+
+ Arts must first wait for an init signal. it has its own
+ method to check for eof. during seek we close this
+ device, after seek we reopen it.
+
+ close and open have the same functionality, they simply
+ clear the buffer.
+*/
+
+
+
+class ArtsOutputStream : public OutputStream {
+
+ BufferInputStream* stream;
+ AudioTime* audioTime;
+
+ void (*streamStateChangeCallback)(void*);
+
+ WindowOut* x11Window;
+ AVSyncer* avSyncer;
+ int privateBufferSize;
+ class ThreadQueue* threadQueue;
+
+ public:
+ ArtsOutputStream(void (*streamStateChangeCallback)(void*));
+ ~ArtsOutputStream();
+
+ // Audio part
+
+ int audioSetup(int freq,int stereo,int sign,int big,int sampleSize);
+ void audioClose();
+ void audioOpen();
+ void audioFlush();
+
+ int audioPlay(TimeStamp* startStamp,
+ TimeStamp* endStamp,char *buffer, int size);
+
+
+ AudioTime* getAudioTime();
+
+ int getPreferredDeliverSize();
+
+ // Video part
+
+ int openWindow(int width, int height,const char *title);
+ int x11WindowId();
+ void closeWindow();
+ void flushWindow();
+
+ PictureArray* lockPictureArray();
+ void unlockPictureArray(PictureArray* pictureArray);
+
+ int getFrameusec();
+
+ void config(const char* key,const char* value,void* user_data);
+
+ // Remote read extension
+
+ int read(char** buffer,int bytes);
+ void forwardReadPtr(int bytes);
+
+ // buffer control
+ int getBufferFillgrade();
+
+ // sync control
+ void setAudioBufferSize(int size);
+
+ private:
+ void sendSignal(int state,int value);
+ void initStream();
+
+};
+#endif