1 files changed, 123 insertions, 0 deletions
diff --git a/mpeglib/lib/output/artsOutputStream.h b/mpeglib/lib/output/artsOutputStream.h
new file mode 100644
index 00000000..757022fd
--- /dev/null
+++ b/mpeglib/lib/output/artsOutputStream.h
@@ -0,0 +1,123 @@
+/*
+  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