78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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// $Id: frame.h 746 2006-12-11 20:12:12Z sbalea $
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/*
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* app_conference
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*
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* A channel independent conference application for Asterisk
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*
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* Copyright (C) 2002, 2003 Junghanns.NET GmbH
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* Copyright (C) 2003, 2004 HorizonLive.com, Inc.
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* Copyright (C) 2005, 2006 HorizonWimba, Inc.
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* Copyright (C) 2007 Wimba, Inc.
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*
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* Klaus-Peter Junghanns <kapejod@ns1.jnetdns.de>
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*
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* Video Conferencing support added by
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* Neil Stratford <neils@vipadia.com>
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* Copyright (C) 2005, 2005 Vipadia Limited
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*
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* VAD driven video conferencing, text message support
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* and miscellaneous enhancements added by
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* Mihai Balea <mihai at hates dot ms>
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*
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* This program may be modified and distributed under the
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* terms of the GNU General Public License. You should have received
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* a copy of the GNU General Public License along with this
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* program; if not, write to the Free Software Foundation, Inc.
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _APP_CONF_FRAME_H
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#define _APP_CONF_FRAME_H
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//
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// includes
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//
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#include "app_conference.h"
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#include "common.h"
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//
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// function declarations
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//
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// mixing
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conf_frame* mix_frames( conf_frame* frames_in, int speaker_count, int listener_count, int volume ) ;
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conf_frame* mix_multiple_speakers( conf_frame* frames_in, int speakers, int listeners, int volume ) ;
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conf_frame* mix_single_speaker( conf_frame* frames_in, int volume ) ;
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// frame creation and deletion
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conf_frame* create_conf_frame( struct ast_conf_member* member, conf_frame* next, const struct ast_frame* fr ) ;
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conf_frame* delete_conf_frame( conf_frame* cf ) ;
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conf_frame* copy_conf_frame( conf_frame* src ) ;
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// convert frame functions
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struct ast_frame* convert_frame_to_slinear( struct ast_trans_pvt* trans, struct ast_frame* fr ) ;
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struct ast_frame* convert_frame_from_slinear( struct ast_trans_pvt* trans, struct ast_frame* fr ) ;
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struct ast_frame* convert_frame( struct ast_trans_pvt* trans, struct ast_frame* fr ) ;
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#ifdef TEXT
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// text frame function(s)
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struct ast_frame* create_text_frame(const char *text, int copy);
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#endif
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// slinear frame functions
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struct ast_frame* create_slinear_frame( char* data ) ;
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void mix_slinear_frames( char* dst, const char* src, int samples ) ;
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// silent frame functions
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conf_frame* get_silent_frame( void ) ;
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struct ast_frame* get_silent_slinear_frame( void ) ;
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// set delivery timestamp for frames
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void set_conf_frame_delivery( conf_frame* frame, struct timeval time ) ;
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#endif
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