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Open Mash Cross Reference
mash/tcl/psvp/effects/jpeg-sc-jpeg.tcl

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  1 # jpeg-sc-jpeg.tcl --
  2 #
  3 #       FIXME: This file needs a description here.
  4 #
  5 # Copyright (c) 1998-2002 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 import DaliSubprogram
 32 
 33 Class Jpeg2Sc2Jpeg -superclass DaliSubprogram
 34 
 35 Jpeg2Sc2Jpeg instproc init {args} {
 36     eval $self next $args;
 37 
 38     $self instvar input_id_list_;
 39     $self instvar input_info_;
 40 
 41     lappend input_id_list_ i1;
 42 
 43     set input_info_(i1,spec) ""
 44     set input_info_(i1,trigger) 0;
 45     set input_info_(i1,buffertype) Semicompressed;
 46     set input_info_(i1,buffername) [new VidRep/Semicompressed];
 47     set input_info_(i1,decoder) "";
 48 
 49     $self instvar output_id_list_;
 50     $self instvar output_info_;
 51 
 52     lappend output_id_list_ o1;
 53 
 54     set output_info_(o1,spec) "";
 55     set output_info_(o1,buffertype) Semicompressed;
 56     set output_info_(o1,buffername) [new VidRep/Semicompressed];
 57     set output_info_(o1,encoder) "";
 58     set output_info_(o1,format) JPEG;
 59     set output_info_(o1,vagent) "";
 60 
 61 }
 62 
 63 Jpeg2Sc2Jpeg instproc trigger {} {
 64     $self instvar init_done_;
 65     $self instvar input_info_;
 66     $self instvar output_info_;
 67 
 68     set in_frame $input_info_(i1,buffername);
 69 
 70     if {![info exists init_done_]} {
 71         if {[$in_frame set w_] == 0} {
 72             return;
 73         }
 74         set init_done_ 1;
 75     }
 76 
 77     set encoder $output_info_(o1,encoder);
 78 
 79     if {$encoder != ""} {
 80         $encoder recv $in_frame;
 81     }
 82 
 83     $self send_completion_token;
 84 }
 85 
 86
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