You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
2.6 KiB
124 lines
2.6 KiB
/*
|
|
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
|