callback.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: callback.h,v 1.1.1.1.50.3 2004/07/09 01:46:59 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
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 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
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 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
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 * terms of the GNU General Public License Version 2 or later (the
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 * This file is part of the Helix DNA Technology. RealNetworks is the
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 * ***** END LICENSE BLOCK ***** */

#ifdef __MWERKS__
#pragma once
#endif

#ifndef _callback
#define	_callback

typedef enum hx_callback
{
	HX_GENERIC_CALLBACK = 0,
	HX_AUDIO_CALLBACK,
	HX_TCP_CALLBACK,
	HX_UDP_CALLBACK,
	HX_SYNC_CALLBACK,
	HX_VIDEO_ONLY_CALLBACK,
	HX_TIMER_CALLBACK,
	HX_VIDEO_FILE_CALLBACK,
	HX_PRE_ENCODE_CALLBACK,
	HX_POST_ENCODE_CALLBACK,
	HX_STATUS_TEXT_CALLBACK,
	HX_SOURCE_CLOSED_CALLBACK,
	HX_WRITE_PACKET_CALLBACK,
	HX_AUDIO_PEAK_CALLBACK,
	HX_VIDEO_CALLBACK,
	HX_AUDIO_ONLY_CALLBACK,
	HX_AUDIO_FILE_CALLBACK,
	HX_AUDIOLEVEL_CHANGED, // for audio level sink	
	HX_ERROR_OCCURRED, // for error sink	
	HX_STREAM_STATS_CHANGED, // for stats sink
	HX_AUDIOSTREAM_STATS_CHANGED, // for stats sink
	HX_VIDEOSTREAM_STATS_CHANGED, // for stats sink
	HX_AUDIO_STATS_CHANGED, // for stats sink
	HX_VIDEO_STATS_CHANGED, // for stats sink
	HX_AUDIO_MULTIPLE_CALLBACK,//HX_AUDIO_ONLY_CALLBACK for live multi (=a/v) sources 
	HX_VIDEO_MULTIPLE_CALLBACK //HX_VIDEO_ONLY_CALLBACK for live multi source 

} HX_CALLBACK;

class callback 
{
public:

/* 	class destructor */	
						callback		(void) {;};
	virtual				~callback		(void) {;};

	virtual void		callback_task( HX_CALLBACK message = HX_GENERIC_CALLBACK, void* params = 0 ) {}
};

#endif // _callback