1 /*****************************************************************************
2 * main.c: main vlc source
3 * Includes the main() function for vlc. Parses command line, start interface
5 *****************************************************************************
6 * Copyright (C) 1998, 1999, 2000 VideoLAN
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
30 #include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
31 #include <stdio.h> /* sprintf() */
32 #include <unistd.h> /* getopt() under QNX */
35 #include <getopt.h> /* getopt() */
38 #include <errno.h> /* ENOMEM */
39 #include <stdlib.h> /* getenv(), strtol(), */
40 #include <string.h> /* strerror() */
47 #include "tests.h" /* TestCPU() */
50 #include "stream_control.h"
51 #include "input_ext-intf.h"
54 #include "intf_playlist.h"
55 #include "interface.h"
57 #include "audio_output.h"
60 #include "video_output.h"
63 #include "beos_specific.h"
68 /*****************************************************************************
69 * Command line options constants. If something is changed here, be sure that
70 * GetConfiguration and Usage are also changed.
71 *****************************************************************************/
73 /* Long options return values - note that values corresponding to short options
74 * chars, and in general any regular char, should be avoided */
75 #define OPT_NOAUDIO 150
76 #define OPT_STEREO 151
79 #define OPT_NOVIDEO 160
80 #define OPT_DISPLAY 161
82 #define OPT_HEIGHT 163
84 #define OPT_FULLSCREEN 165
85 #define OPT_OVERLAY 166
88 #define OPT_SERVER 171
90 #define OPT_BROADCAST 173
93 #define OPT_MOTION 181
97 #define OPT_SYNCHRO 190
98 #define OPT_WARNING 191
107 static const struct option longopts[] =
109 /* name, has_arg, flag, val */
111 /* General/common options */
112 { "help", 0, 0, 'h' },
113 { "longhelp", 0, 0, 'H' },
114 { "version", 0, 0, 'v' },
116 /* Interface options */
117 { "intf", 1, 0, 'I' },
118 { "warning", 1, 0, OPT_WARNING },
121 { "noaudio", 0, 0, OPT_NOAUDIO },
122 { "aout", 1, 0, 'A' },
123 { "stereo", 0, 0, OPT_STEREO },
124 { "mono", 0, 0, OPT_MONO },
127 { "novideo", 0, 0, OPT_NOVIDEO },
128 { "vout", 1, 0, 'V' },
129 { "display", 1, 0, OPT_DISPLAY },
130 { "width", 1, 0, OPT_WIDTH },
131 { "height", 1, 0, OPT_HEIGHT },
132 { "grayscale", 0, 0, 'g' },
133 { "color", 0, 0, OPT_COLOR },
134 { "motion", 1, 0, OPT_MOTION },
135 { "idct", 1, 0, OPT_IDCT },
136 { "yuv", 1, 0, OPT_YUV },
137 { "fullscreen", 0, 0, OPT_FULLSCREEN },
138 { "overlay", 0, 0, OPT_OVERLAY },
141 { "dvdtitle", 1, 0, 't' },
142 { "dvdchapter", 1, 0, 'T' },
143 { "dvdaudio", 1, 0, 'a' },
144 { "dvdchannel", 1, 0, 'c' },
145 { "dvdsubtitle", 1, 0, 's' },
148 { "input", 1, 0, OPT_INPUT },
149 { "vlans", 0, 0, OPT_VLANS },
150 { "server", 1, 0, OPT_SERVER },
151 { "port", 1, 0, OPT_PORT },
152 { "broadcast", 0, 0, OPT_BROADCAST },
154 /* Synchro options */
155 { "synchro", 1, 0, OPT_SYNCHRO },
160 static const char *psz_shortopts = "hHvgt:T:a:s:c:I:A:V:";
164 /*****************************************************************************
165 * Global variable program_data - this is the one and only, see main.h
166 *****************************************************************************/
169 /*****************************************************************************
171 *****************************************************************************/
172 static void SetDefaultConfiguration ( void );
173 static int GetConfiguration ( int i_argc, char *ppsz_argv[],
175 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
176 static void Usage ( int i_fashion );
177 static void Version ( void );
179 static void InitSignalHandler ( void );
180 static void SimpleSignalHandler ( int i_signal );
181 static void FatalSignalHandler ( int i_signal );
183 /*****************************************************************************
184 * main: parse command line, start interface and spawn threads
185 *****************************************************************************
186 * Steps during program execution are:
187 * -configuration parsing and messages interface initialization
188 * -opening of audio output device and some global modules
189 * -execution of interface, which exit on error or on user request
190 * -closing of audio output device and some global modules
191 * On error, the spawned threads are canceled, and the open devices closed.
192 *****************************************************************************/
193 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
195 main_t main_data; /* root of all data - see main.h */
197 p_main = &main_data; /* set up the global variable */
200 * System specific initialization code
206 p_main->i_cpu_capabilities = CPUCapabilities();
209 * Test if our code is likely to run on this CPU
211 #if defined( __pentium__ ) || defined( __pentiumpro__ )
212 if( ! TestCPU( CPU_CAPABILITY_586 ) )
214 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
215 "please try a version without Pentium support\n" );
221 if( ! TestCPU( CPU_CAPABILITY_MMX ) )
223 fprintf( stderr, "error: this program needs MMX extensions,\n"
224 "please try a version without MMX support\n" );
230 * Initialize messages interface
232 p_main->p_msg = intf_MsgCreate();
233 if( !p_main->p_msg ) /* start messages interface */
235 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
240 intf_MsgImm( COPYRIGHT_MESSAGE );
245 if( GetConfiguration( i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
251 p_main->i_warning_level = main_GetIntVariable( INTF_WARNING_VAR,
252 INTF_WARNING_DEFAULT );
255 * Initialize playlist and get commandline files
257 p_main->p_playlist = intf_PlaylistCreate( );
258 if( !p_main->p_playlist )
260 intf_ErrMsg( "playlist error: playlist initialization failed" );
264 intf_PlaylistInit( p_main->p_playlist );
267 * Get input filenames given as commandline arguments
269 GetFilenames( i_argc, ppsz_argv );
272 * Initialize module bank
274 p_main->p_bank = module_CreateBank( );
275 if( !p_main->p_bank )
277 intf_ErrMsg( "module error: module bank initialization failed" );
278 intf_PlaylistDestroy( p_main->p_playlist );
282 module_InitBank( p_main->p_bank );
285 * Initialize shared resources and libraries
287 /* FIXME: no VLANs */
289 if( p_main->b_vlans && input_VlanCreate() )
291 /* On error during vlans initialization, switch off vlans */
292 intf_Msg( "Virtual LANs initialization failed : "
293 "vlans management is deactivated" );
301 p_main->p_intf = intf_Create();
302 if( !p_main->p_intf )
304 intf_ErrMsg( "intf error: interface initialization failed" );
305 module_DestroyBank( p_main->p_bank );
306 intf_PlaylistDestroy( p_main->p_playlist );
312 * Set signal handling policy for all threads
317 * Open audio device and start aout thread
319 if( p_main->b_audio )
321 p_main->p_aout = aout_CreateThread( NULL );
322 if( p_main->p_aout == NULL )
324 /* On error during audio initialization, switch off audio */
325 intf_ErrMsg( "aout error: audio initialization failed,"
326 " audio is deactivated" );
332 * Open video device and start vout thread
334 if( p_main->b_video )
336 p_main->p_vout = vout_CreateThread( NULL );
337 if( p_main->p_vout == NULL )
339 /* On error during video initialization, switch off video */
340 intf_ErrMsg( "vout error: video initialization failed,"
341 " video is deactivated" );
346 /* Flush messages before entering the main loop */
350 * This is the main loop
352 p_main->p_intf->pf_run( p_main->p_intf );
354 intf_Destroy( p_main->p_intf );
359 if( p_main->b_video )
361 vout_DestroyThread( p_main->p_vout, NULL );
367 if( p_main->b_audio )
369 aout_DestroyThread( p_main->p_aout, NULL );
373 * Free shared resources and libraries
377 if( p_main->b_vlans )
386 module_DestroyBank( p_main->p_bank );
391 intf_PlaylistDestroy( p_main->p_playlist );
395 * System specific cleaning code
401 * Terminate messages interface and program
403 intf_Msg( "intf: program terminated" );
409 /*****************************************************************************
410 * main_GetIntVariable: get the int value of an environment variable
411 *****************************************************************************
412 * This function is used to read some default parameters in modules.
413 *****************************************************************************/
414 int main_GetIntVariable( char *psz_name, int i_default )
416 char * psz_env; /* environment value */
417 char * psz_end; /* end of parsing index */
418 long int i_value; /* value */
420 psz_env = getenv( psz_name );
423 i_value = strtol( psz_env, &psz_end, 0 );
424 if( (*psz_env != '\0') && (*psz_end == '\0') )
432 /*****************************************************************************
433 * main_GetPszVariable: get the string value of an environment variable
434 *****************************************************************************
435 * This function is used to read some default parameters in modules.
436 *****************************************************************************/
437 char * main_GetPszVariable( char *psz_name, char *psz_default )
441 psz_env = getenv( psz_name );
446 return( psz_default );
449 /*****************************************************************************
450 * main_PutPszVariable: set the string value of an environment variable
451 *****************************************************************************
452 * This function is used to set some default parameters in modules. The use of
453 * this function will cause some memory leak: since some systems use the pointer
454 * passed to putenv to store the environment string, it can't be freed.
455 *****************************************************************************/
456 void main_PutPszVariable( char *psz_name, char *psz_value )
460 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
461 if( psz_env == NULL )
463 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
468 sprintf( psz_env, "%s=%s", psz_name, psz_value );
469 if( putenv( psz_env ) )
471 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
476 /*****************************************************************************
477 * main_PutIntVariable: set the integer value of an environment variable
478 *****************************************************************************
479 * This function is used to set some default parameters in modules. The use of
480 * this function will cause some memory leak: since some systems use the pointer
481 * passed to putenv to store the environment string, it can't be freed.
482 *****************************************************************************/
483 void main_PutIntVariable( char *psz_name, int i_value )
485 char psz_value[ 256 ]; /* buffer for value */
487 sprintf( psz_value, "%d", i_value );
488 main_PutPszVariable( psz_name, psz_value );
491 /* following functions are local */
493 /*****************************************************************************
494 * SetDefaultConfiguration: set default options
495 *****************************************************************************
496 * This function is called by GetConfiguration before command line is parsed.
497 * It sets all the default values required later by the program. At this stage,
498 * most structure are not yet allocated, so initialization must be done using
500 *****************************************************************************/
501 static void SetDefaultConfiguration( void )
504 * All features are activated by default except vlans
511 /*****************************************************************************
512 * GetConfiguration: parse command line
513 *****************************************************************************
514 * Parse command line and configuration file for configuration. If the inline
515 * help is requested, the function Usage() is called and the function returns
516 * -1 (causing main() to exit). The messages interface is initialized at this
517 * stage, but most structures are not allocated, so only environment should
519 *****************************************************************************/
520 static int GetConfiguration( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
525 /* Set default configuration and copy arguments */
526 p_main->i_argc = i_argc;
527 p_main->ppsz_argv = ppsz_argv;
528 p_main->ppsz_env = ppsz_env;
529 SetDefaultConfiguration();
531 /* Get the executable name (similar to the basename command) */
532 p_main->psz_arg0 = p_pointer = ppsz_argv[ 0 ];
535 if( *p_pointer == '/' )
537 p_main->psz_arg0 = ++p_pointer;
545 /* Parse command line options */
548 while( ( c = getopt_long( i_argc, ppsz_argv, psz_shortopts, longopts, 0 ) ) != EOF )
552 /* General/common options */
553 case 'h': /* -h, --help */
557 case 'H': /* -H, --longhelp */
561 case 'v': /* -v, --version */
566 /* Interface warning messages level */
567 case 'I': /* -I, --intf */
568 main_PutPszVariable( INTF_METHOD_VAR, optarg );
570 case OPT_WARNING: /* --warning */
571 main_PutIntVariable( INTF_WARNING_VAR, atoi(optarg) );
575 case OPT_NOAUDIO: /* --noaudio */
578 case 'A': /* -A, --aout */
579 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
581 case OPT_STEREO: /* --stereo */
582 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
584 case OPT_MONO: /* --mono */
585 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
589 case OPT_NOVIDEO: /* --novideo */
592 case 'V': /* -V, --vout */
593 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
595 case OPT_DISPLAY: /* --display */
596 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
598 case OPT_WIDTH: /* --width */
599 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
601 case OPT_HEIGHT: /* --height */
602 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
604 case 'g': /* -g, --grayscale */
605 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
607 case OPT_COLOR: /* --color */
608 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
610 case OPT_FULLSCREEN: /* --fullscreen */
611 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
613 case OPT_OVERLAY: /* --overlay */
614 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
616 case OPT_MOTION: /* --motion */
617 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
619 case OPT_IDCT: /* --idct */
620 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
622 case OPT_YUV: /* --yuv */
623 main_PutPszVariable( YUV_METHOD_VAR, optarg );
628 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
631 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
634 if ( ! strcmp(optarg, "ac3") )
635 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
636 else if ( ! strcmp(optarg, "lpcm") )
637 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
638 else if ( ! strcmp(optarg, "mpeg") )
639 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
641 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
644 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
647 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
651 case OPT_INPUT: /* --input */
652 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
654 case OPT_VLANS: /* --vlans */
657 case OPT_SERVER: /* --server */
658 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
660 case OPT_PORT: /* --port */
661 main_PutPszVariable( INPUT_PORT_VAR, optarg );
663 case OPT_BROADCAST: /* --broadcast */
664 main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
667 /* Synchro options */
669 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
672 /* Internal error: unknown option */
675 intf_ErrMsg( "intf error: unknown option `%s'", ppsz_argv[optind - 1] );
685 /*****************************************************************************
686 * GetFilenames: parse command line options which are not flags
687 *****************************************************************************
688 * Parse command line for input files.
689 *****************************************************************************/
690 static int GetFilenames( int i_argc, char *ppsz_argv[] )
694 /* We assume that the remaining parameters are filenames */
695 for( i_opt = optind; i_opt < i_argc; i_opt++ )
697 intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
698 ppsz_argv[ i_opt ] );
704 /*****************************************************************************
705 * Usage: print program usage
706 *****************************************************************************
707 * Print a short inline help. Message interface is initialized at this stage.
708 *****************************************************************************/
709 static void Usage( int i_fashion )
712 intf_MsgImm( "Usage: %s [options] [parameters] [file]...",
715 if( i_fashion == USAGE )
717 intf_MsgImm( "Try `%s --help' for more information.",
723 intf_MsgImm( "\nOptions:"
724 "\n -I, --intf <module> \tinterface method"
725 "\n --warning <level> \tdisplay warning messages"
727 "\n --noaudio \tdisable audio"
728 "\n -A, --aout <module> \taudio output method"
729 "\n --stereo, --mono \tstereo/mono audio"
731 "\n --novideo \tdisable video"
732 "\n -V, --vout <module> \tvideo output method"
733 "\n --display <display> \tdisplay string"
734 "\n --width <w>, --height <h> \tdisplay dimensions"
735 "\n -g, --grayscale \tgrayscale output"
736 "\n --fullscreen \tfullscreen output"
737 "\n --overlay \taccelerated display"
738 "\n --color \tcolor output"
739 "\n --motion <module> \tmotion compensation method"
740 "\n --idct <module> \tIDCT method"
741 "\n --yuv <module> \tYUV method"
742 "\n --synchro <type> \tforce synchro algorithm"
744 "\n -t, --dvdtitle <num> \tchoose DVD title"
745 "\n -T, --dvdchapter <num> \tchoose DVD chapter"
746 "\n -a, --dvdaudio <type> \tchoose DVD audio type"
747 "\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
748 "\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
750 "\n --input \tinput method"
751 "\n --vlans \tenable vlans"
752 "\n --server <host> \tvideo server address"
753 "\n --port <port> \tvideo server port"
754 "\n --broadcast \tlisten to a broadcast"
756 "\n -h, --help \tprint help and exit"
757 "\n -H, --longhelp \tprint long help and exit"
758 "\n -v, --version \toutput version information and exit" );
760 if( i_fashion == SHORT_HELP )
763 /* Interface parameters */
764 intf_MsgImm( "\nInterface parameters:"
765 "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
766 "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
767 "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list"
768 "\n " INTF_WARNING_VAR "=<level> \twarning level" );
770 /* Audio parameters */
771 intf_MsgImm( "\nAudio parameters:"
772 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
773 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
774 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
775 "\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
777 /* Video parameters */
778 intf_MsgImm( "\nVideo parameters:"
779 "\n " VOUT_METHOD_VAR "=<method name> \tdisplay method"
780 "\n " VOUT_DISPLAY_VAR "=<display name> \tdisplay used"
781 "\n " VOUT_WIDTH_VAR "=<width> \tdisplay width"
782 "\n " VOUT_HEIGHT_VAR "=<height> \tdislay height"
783 "\n " VOUT_FB_DEV_VAR "=<filename> \tframebuffer device path"
784 "\n " VOUT_GRAYSCALE_VAR "={1|0} \tgrayscale or color output"
785 "\n " VOUT_FULLSCREEN_VAR "={1|0} \tfullscreen"
786 "\n " VOUT_OVERLAY_VAR "={1|0} \toverlay"
787 "\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
788 "\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
789 "\n " YUV_METHOD_VAR "=<method name> \tYUV method"
790 "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm" );
793 intf_MsgImm( "\nDVD parameters:"
794 "\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
795 "\n " INPUT_TITLE_VAR "=<title> \ttitle number"
796 "\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
797 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
798 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
799 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
801 /* Input parameters */
802 intf_MsgImm( "\nInput parameters:"
803 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
804 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
805 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
806 "\n " INPUT_BROADCAST_VAR "={1|0} \tbroadcast mode"
807 "\n " INPUT_VLAN_SERVER_VAR "=<hostname> \tvlan server"
808 "\n " INPUT_VLAN_PORT_VAR "=<port> \tvlan server port" );
812 /*****************************************************************************
813 * Version: print complete program version
814 *****************************************************************************
815 * Print complete program version and build number.
816 *****************************************************************************/
817 static void Version( void )
819 intf_MsgImm( VERSION_MESSAGE
820 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
821 "You may redistribute it under the terms of the GNU General Public License;\n"
822 "see the file named COPYING for details.\n"
823 "Written by the VideoLAN team at Ecole Centrale, Paris." );
826 /*****************************************************************************
827 * InitSignalHandler: system signal handler initialization
828 *****************************************************************************
829 * Set the signal handlers. SIGTERM is not intercepted, because we need at
830 * at least a method to kill the program when all other methods failed, and
831 * when we don't want to use SIGKILL.
832 *****************************************************************************/
833 static void InitSignalHandler( void )
835 /* Termination signals */
836 signal( SIGHUP, FatalSignalHandler );
837 signal( SIGINT, FatalSignalHandler );
838 signal( SIGQUIT, FatalSignalHandler );
841 signal( SIGALRM, SimpleSignalHandler );
842 signal( SIGPIPE, SimpleSignalHandler );
846 /*****************************************************************************
847 * SimpleSignalHandler: system signal handler
848 *****************************************************************************
849 * This function is called when a non fatal signal is received by the program.
850 *****************************************************************************/
851 static void SimpleSignalHandler( int i_signal )
853 /* Acknowledge the signal received */
854 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
858 /*****************************************************************************
859 * FatalSignalHandler: system signal handler
860 *****************************************************************************
861 * This function is called when a fatal signal is received by the program.
862 * It tries to end the program in a clean way.
863 *****************************************************************************/
864 static void FatalSignalHandler( int i_signal )
866 /* Once a signal has been trapped, the termination sequence will be
867 * armed and following signals will be ignored to avoid sending messages
868 * to an interface having been destroyed */
869 signal( SIGHUP, SIG_IGN );
870 signal( SIGINT, SIG_IGN );
871 signal( SIGQUIT, SIG_IGN );
873 /* Acknowledge the signal received */
874 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
876 /* Try to terminate everything - this is done by requesting the end of the
877 * interface thread */
878 p_main->p_intf->b_die = 1;