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Open Mash Cross Reference
mash/tcl/indiva/imgr/mob-stream.tcl

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  1 # mob-stream.tcl --
  2 #
  3 #   Media object representation of a stream.
  4 #
  5 # Copyright (c) 1996-2002 The Regents of the University of California.
  6 # All rights reserved.
  7 #
  8 # Redistribution and use in source and binary forms, with or without
  9 # modification, are permitted provided that the following conditions are met:
 10 #
 11 # A. Redistributions of source code must retain the above copyright notice,
 12 #    this list of conditions and the following disclaimer.
 13 # B. Redistributions in binary form must reproduce the above copyright notice,
 14 #    this list of conditions and the following disclaimer in the documentation
 15 #    and/or other materials provided with the distribution.
 16 # C. Neither the names of the copyright holders nor the names of its
 17 #    contributors may be used to endorse or promote products derived from this
 18 #    software without specific prior written permission.
 19 #
 20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
 21 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 23 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
 24 # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 26 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 27 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 28 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 30 #
 31 # @(#) $Header: /usr/mash/src/repository/mash/mash-1/tcl/indiva/imgr/mob-stream.tcl,v 1.5 2002/07/19 23:35:17 weitsang Exp $
 32 
 33 Class MobStream -superclass Mob
 34 
 35 import MobEdge
 36 
 37 MobStream public get_type {} {
 38     return "stream"
 39 }
 40 
 41 
 42 MobStream proc get_ext {} {
 43     return ".rtp"
 44 }
 45 
 46 MobStream instproc is_persistent {} {
 47     return 0
 48 }
 49 
 50 MobStream instproc get_virtual_edge_to {s} {
 51     if {[$s is_instance_of MobStream] || 
 52         [$s is_instance_of MobSession]} {
 53         return [new MobEdge $self $s "forward"]
 54     }
 55 }
 56
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