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Add commands --descr, --sdescr, --pdescr to allow manual
modification of descriptors in target stream. See man page (DESCRIPTION and BUGS).
Introduce two levels of configuration printment to selectively
print or don't the descriptors of a stream. See man page --config.

/*
 * ISO 13818 stream multiplexer
 * Copyright (C) 2001 Convergence Integrated Media GmbH Berlin
 * Author: Oskar Schirmer (oskar@convergence.de)
 */

#include <string.h>
#include <errno.h>
#include <stdio.h>

#define EINI 0x01
#define EDIS 0x02
#define EERR 0x03
#define EINP 0x04
#define EOUT 0x05
#define ECOM 0x06
#define EGLO 0x07
#define EPES 0x08
#define EPST 0x09
#define ETST 0x0A
#define EPSC 0x0B
#define ETSC 0x0C
#define ESPC 0x0D
#define EDES 0x0E

#define LERR 0x01 /* program error */
#define LWAR 0x02 /* input data error */
#define LIMP 0x03 /* constellation change */
#define LINF 0x04 /* sporadic information */
#define LSEC 0x05 /* running information */
#define LDEB 0x06 /* debug level */

extern char *warn_level_name[];
extern char *warn_module_name[];

extern int verbose_level;

void do_warn (int level1,
    char *text,
    int module1,
    int func,
    int numb,
    long value);

#define warn(level,text,module,function,number,value) \
  (((level) > verbose_level) ? 0 : \
  (do_warn ((level-1),(text),(module-1),(function),(number),(long)(value)), 0))