plugins/video/H.261-vic/vic/bsd-endian.h

   1 /*
   2  * Copyright (c) 1993-1994 Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and the Network Research Group at
  17  *      Lawrence Berkeley Laboratory.
  18  * 4. Neither the name of the University nor of the Laboratory may be used
  19  *    to endorse or promote products derived from this software without
  20  *    specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  */
  35
  36 /************ Change log
  37  *
  38  * $Log$
  39  * Revision 1.2  2006/07/31 09:09:21  csoutheren
  40  * Checkin of validated codec used during development
  41  *
  42  * Revision 1.1.2.1  2006/04/06 01:17:17  csoutheren
  43  * Initial version of H.261 video codec plugin for OPAL
  44  *
  45  * Revision 2.2  2006/02/11 21:09:28  dsandras
  46  * More OpenSolaris fixes thanks to Brian Lu <brian lu sun com>. Thanks!
  47  *
  48  * Revision 2.1  2003/03/15 23:42:59  robertj
  49  * Update to OpenH323 v1.11.7
  50  *
  51  * Revision 1.8  2003/03/14 07:25:55  robertj
  52  * Removed $header keyword so is not different on alternate repositories
  53  *
  54  * Revision 1.7  2002/10/10 05:35:42  robertj
  55  * VxWorks port, thanks Martijn Roest
  56  *
  57  * Revision 1.6  2001/05/25 04:32:25  yurik
  58  * Added Arm based to list of little endian machines
  59  *
  60  * Revision 1.5  2001/05/16 06:30:16  yurik
  61  * Moved int_64 it to config.h
  62  *
  63  * Revision 1.4  2001/05/16 05:37:13  yurik
  64  * Fixed crash on video receive by #define INT_64
  65  *
  66  * Revision 1.3  2000/08/25 03:18:49  dereks
  67  * Add change log facility (Thanks Robert for the info on implementation)
  68  *
  69  *
  70  *
  71  ********/
  72
  73
  74
  75 #include "config.h"
  76
  77 #ifdef WIN32
  78 #include <winsock.h>
  79 #else
  80 #ifndef P_VXWORKS
  81 #include <sys/param.h>
  82 #endif
  83 #endif
  84 #ifdef __linux__
  85 #include <endian.h>
  86 #endif
  87 #ifndef IPPROTO_IP
  88 #include <netinet/in.h>
  89 #endif
  90 #ifndef BYTE_ORDER
  91 #define LITTLE_ENDIAN 1234
  92 #define BIG_ENDIAN 4321
  93 #if defined(ultrix) || defined(__alpha) || defined(__i386__) || defined (i386) || defined(__i486__) || defined(_X86_) || defined(_ARM_)
  94 #define BYTE_ORDER LITTLE_ENDIAN
  95 #else
  96 #define BYTE_ORDER BIG_ENDIAN
  97 #endif
  98 #endif
  99
 100 #if BYTE_ORDER == LITTLE_ENDIAN
 101 #define SHIFT(n) (24 - (n))
 102 #else
 103 #define SHIFT(n) (n)
 104 #endif
 105 #define EXTRACT(v, n) (((v) >> SHIFT(n)) & 0xff)
 106 #define SPLICE(v, p, n) (v) |= (p) << SHIFT(n)