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/*
* Miscellaneous useful definitions
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the MPEG TS, PS and ES tools.
*
* The Initial Developer of the Original Code is Amino Communications Ltd.
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Amino Communications Ltd, Swavesey, Cambridge UK
*
* ***** END LICENSE BLOCK *****
*/
#ifndef _misc_defns
#define _misc_defns
#include "tswrite_defns.h"
#include "video_defns.h"
// Some (internal) functions find it convenient to have a union of the
// possible output streams. Rather than duplicate the definition of these,
// we put them here...
union _writer
{
FILE *es_output; // output to an ES file
TS_writer_p ts_output; // output via a TS writer
};
typedef union _writer WRITER;
// In the programs that handle command lines, it's useful to have a simple
// macro for checking the presence of subsidiary arguments.
// Assumes that argc and argv have their normal names.
#define CHECKARG(program,argno) \
if ((argno)+1 == argc) \
{ \
fprintf(stderr,"### %s: missing argument to %s\n",program,argv[(argno)]); \
return 1; \
}
// A simple macro to return a bit from a bitfield, for use in printf()
#define ON(byt,msk) ((byt & msk)?1:0)
#endif // _misc_defns
// Local Variables:
// tab-width: 8
// indent-tabs-mode: nil
// c-basic-offset: 2
// End:
// vim: set tabstop=8 shiftwidth=2 expandtab:
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