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
7 * $Id: main.c,v 1.85 2001/04/12 01:52:45 sam Exp $
9 * Authors: Vincent Seguin <seguin@via.ecp.fr>
10 * Samuel Hocevar <sam@zoy.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
32 #include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
33 #include <stdio.h> /* sprintf() */
35 #ifdef HAVE_GETOPT_LONG
37 # include <getopt.h> /* getopt() */
40 # include "GNUgetopt/getopt.h"
44 # include <mach/mach.h> /* Altivec detection */
45 # include <mach/mach_error.h> /* some day the header files||compiler *
46 will define it for us */
47 # include <mach/bootstrap.h>
51 #include <errno.h> /* ENOMEM */
52 #include <stdlib.h> /* getenv(), strtol(), */
53 #include <string.h> /* strerror() */
60 #include "tests.h" /* TestCPU() */
63 #include "stream_control.h"
64 #include "input_ext-intf.h"
67 #include "intf_playlist.h"
68 #include "interface.h"
70 #include "audio_output.h"
73 #include "video_output.h"
76 # include "beos_specific.h"
80 # include "darwin_specific.h"
83 #include "netutils.h" /* network_ChannelJoin */
87 /*****************************************************************************
88 * Command line options constants. If something is changed here, be sure that
89 * GetConfiguration and Usage are also changed.
90 *****************************************************************************/
92 /* Long options return values - note that values corresponding to short options
93 * chars, and in general any regular char, should be avoided */
94 #define OPT_NOAUDIO 150
95 #define OPT_STEREO 151
98 #define OPT_NOVIDEO 160
99 #define OPT_DISPLAY 161
100 #define OPT_WIDTH 162
101 #define OPT_HEIGHT 163
102 #define OPT_COLOR 164
103 #define OPT_FULLSCREEN 165
104 #define OPT_OVERLAY 166
106 #define OPT_CHANNELS 170
107 #define OPT_SERVER 171
109 #define OPT_BROADCAST 173
111 #define OPT_INPUT 180
112 #define OPT_MOTION 181
116 #define OPT_SYNCHRO 190
117 #define OPT_WARNING 191
118 #define OPT_VERSION 192
126 static const struct option longopts[] =
128 /* name, has_arg, flag, val */
130 /* General/common options */
131 { "help", 0, 0, 'h' },
132 { "longhelp", 0, 0, 'H' },
133 { "version", 0, 0, OPT_VERSION },
135 /* Interface options */
136 { "intf", 1, 0, 'I' },
137 { "warning", 1, 0, OPT_WARNING },
140 { "noaudio", 0, 0, OPT_NOAUDIO },
141 { "aout", 1, 0, 'A' },
142 { "stereo", 0, 0, OPT_STEREO },
143 { "mono", 0, 0, OPT_MONO },
146 { "novideo", 0, 0, OPT_NOVIDEO },
147 { "vout", 1, 0, 'V' },
148 { "display", 1, 0, OPT_DISPLAY },
149 { "width", 1, 0, OPT_WIDTH },
150 { "height", 1, 0, OPT_HEIGHT },
151 { "grayscale", 0, 0, 'g' },
152 { "color", 0, 0, OPT_COLOR },
153 { "motion", 1, 0, OPT_MOTION },
154 { "idct", 1, 0, OPT_IDCT },
155 { "yuv", 1, 0, OPT_YUV },
156 { "fullscreen", 0, 0, OPT_FULLSCREEN },
157 { "overlay", 0, 0, OPT_OVERLAY },
160 { "dvdtitle", 1, 0, 't' },
161 { "dvdchapter", 1, 0, 'T' },
162 { "dvdaudio", 1, 0, 'a' },
163 { "dvdchannel", 1, 0, 'c' },
164 { "dvdsubtitle", 1, 0, 's' },
167 { "input", 1, 0, OPT_INPUT },
168 { "channels", 0, 0, OPT_CHANNELS },
169 { "server", 1, 0, OPT_SERVER },
170 { "port", 1, 0, OPT_PORT },
171 { "broadcast", 0, 0, OPT_BROADCAST },
173 /* Synchro options */
174 { "synchro", 1, 0, OPT_SYNCHRO },
179 static const char *psz_shortopts = "hHvgt:T:a:s:c:I:A:V:";
181 /*****************************************************************************
182 * Global variable program_data - this is the one and only, see main.h
183 *****************************************************************************/
186 /*****************************************************************************
188 *****************************************************************************/
189 static int GetConfiguration ( int *pi_argc, char *ppsz_argv[],
191 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
192 static void Usage ( int i_fashion );
193 static void Version ( void );
195 static void InitSignalHandler ( void );
196 static void SimpleSignalHandler ( int i_signal );
197 static void FatalSignalHandler ( int i_signal );
199 static int CPUCapabilities ( void );
201 /*****************************************************************************
202 * main: parse command line, start interface and spawn threads
203 *****************************************************************************
204 * Steps during program execution are:
205 * -configuration parsing and messages interface initialization
206 * -opening of audio output device and some global modules
207 * -execution of interface, which exit on error or on user request
208 * -closing of audio output device and some global modules
209 * On error, the spawned threads are canceled, and the open devices closed.
210 *****************************************************************************/
211 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
213 main_t main_data; /* root of all data - see main.h */
215 p_main = &main_data; /* set up the global variable */
218 * System specific initialization code
220 #if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
221 system_Create( &i_argc, ppsz_argv, ppsz_env );
224 p_main->i_cpu_capabilities = CPUCapabilities();
227 * Test if our code is likely to run on this CPU
229 #if defined( __pentium__ ) || defined( __pentiumpro__ )
230 if( ! TestCPU( CPU_CAPABILITY_586 ) )
232 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
233 "please try a version without Pentium support\n" );
239 if( ! TestCPU( CPU_CAPABILITY_MMX ) )
241 fprintf( stderr, "error: this program needs MMX extensions,\n"
242 "please try a version without MMX support\n" );
248 * Initialize messages interface
250 p_main->p_msg = intf_MsgCreate();
251 if( !p_main->p_msg ) /* start messages interface */
253 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
258 intf_MsgImm( COPYRIGHT_MESSAGE );
263 if( GetConfiguration( &i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
270 * Initialize playlist and get commandline files
272 p_main->p_playlist = intf_PlaylistCreate( );
273 if( !p_main->p_playlist )
275 intf_ErrMsg( "playlist error: playlist initialization failed" );
279 intf_PlaylistInit( p_main->p_playlist );
282 * Get input filenames given as commandline arguments
284 GetFilenames( i_argc, ppsz_argv );
287 * Initialize module bank
289 p_main->p_bank = module_CreateBank( );
290 if( !p_main->p_bank )
292 intf_ErrMsg( "module error: module bank initialization failed" );
293 intf_PlaylistDestroy( p_main->p_playlist );
297 module_InitBank( p_main->p_bank );
300 * Initialize shared resources and libraries
302 if( p_main->b_channels && network_ChannelCreate() )
304 /* On error during Channels initialization, switch off channels */
305 intf_Msg( "Channels initialization failed : "
306 "Channel management is deactivated" );
307 p_main->b_channels = 0;
313 p_main->p_intf = intf_Create();
314 if( !p_main->p_intf )
316 intf_ErrMsg( "intf error: interface initialization failed" );
317 module_DestroyBank( p_main->p_bank );
318 intf_PlaylistDestroy( p_main->p_playlist );
324 * Set signal handling policy for all threads
329 * Open audio device and start aout thread
331 if( p_main->b_audio )
333 p_main->p_aout = aout_CreateThread( NULL );
334 if( p_main->p_aout == NULL )
336 /* On error during audio initialization, switch off audio */
337 intf_ErrMsg( "aout error: audio initialization failed,"
338 " audio is deactivated" );
344 * Open video device and start vout thread
346 if( p_main->b_video )
348 p_main->p_vout = vout_CreateThread( NULL );
349 if( p_main->p_vout == NULL )
351 /* On error during video initialization, switch off video */
352 intf_ErrMsg( "vout error: video initialization failed,"
353 " video is deactivated" );
358 /* Flush messages before entering the main loop */
362 * This is the main loop
364 p_main->p_intf->pf_run( p_main->p_intf );
366 intf_Destroy( p_main->p_intf );
371 if( p_main->b_video )
373 vout_DestroyThread( p_main->p_vout, NULL );
379 if( p_main->b_audio )
381 aout_DestroyThread( p_main->p_aout, NULL );
385 * Go back into channel 0 which is the network
387 if( p_main->b_channels )
389 network_ChannelJoin( COMMON_CHANNEL );
395 module_DestroyBank( p_main->p_bank );
400 intf_PlaylistDestroy( p_main->p_playlist );
403 * System specific cleaning code
405 #if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
410 * Terminate messages interface and program
412 intf_Msg( "intf: program terminated" );
418 /*****************************************************************************
419 * main_GetIntVariable: get the int value of an environment variable
420 *****************************************************************************
421 * This function is used to read some default parameters in modules.
422 *****************************************************************************/
423 int main_GetIntVariable( char *psz_name, int i_default )
425 char * psz_env; /* environment value */
426 char * psz_end; /* end of parsing index */
427 long int i_value; /* value */
429 psz_env = getenv( psz_name );
432 i_value = strtol( psz_env, &psz_end, 0 );
433 if( (*psz_env != '\0') && (*psz_end == '\0') )
441 /*****************************************************************************
442 * main_GetPszVariable: get the string value of an environment variable
443 *****************************************************************************
444 * This function is used to read some default parameters in modules.
445 *****************************************************************************/
446 char * main_GetPszVariable( char *psz_name, char *psz_default )
450 psz_env = getenv( psz_name );
455 return( psz_default );
458 /*****************************************************************************
459 * main_PutPszVariable: set the string value of an environment variable
460 *****************************************************************************
461 * This function is used to set some default parameters in modules. The use of
462 * this function will cause some memory leak: since some systems use the pointer
463 * passed to putenv to store the environment string, it can't be freed.
464 *****************************************************************************/
465 void main_PutPszVariable( char *psz_name, char *psz_value )
469 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
470 if( psz_env == NULL )
472 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
477 sprintf( psz_env, "%s=%s", psz_name, psz_value );
478 if( putenv( psz_env ) )
480 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
485 /*****************************************************************************
486 * main_PutIntVariable: set the integer value of an environment variable
487 *****************************************************************************
488 * This function is used to set some default parameters in modules. The use of
489 * this function will cause some memory leak: since some systems use the pointer
490 * passed to putenv to store the environment string, it can't be freed.
491 *****************************************************************************/
492 void main_PutIntVariable( char *psz_name, int i_value )
494 char psz_value[ 256 ]; /* buffer for value */
496 sprintf( psz_value, "%d", i_value );
497 main_PutPszVariable( psz_name, psz_value );
500 /* following functions are local */
502 /*****************************************************************************
503 * GetConfiguration: parse command line
504 *****************************************************************************
505 * Parse command line and configuration file for configuration. If the inline
506 * help is requested, the function Usage() is called and the function returns
507 * -1 (causing main() to exit). The messages interface is initialized at this
508 * stage, but most structures are not allocated, so only environment should
510 *****************************************************************************/
511 static int GetConfiguration( int *pi_argc, char *ppsz_argv[], char *ppsz_env[] )
516 /* Set default configuration and copy arguments */
517 p_main->i_argc = *pi_argc;
518 p_main->ppsz_argv = ppsz_argv;
519 p_main->ppsz_env = ppsz_env;
523 p_main->b_channels = 0;
525 p_main->i_warning_level = 4;
527 /* Get the executable name (similar to the basename command) */
528 p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
533 p_main->psz_arg0 = ++p_tmp;
542 /* When vlc.app is run by double clicking in Mac OS X, the 2nd arg
543 * is the PSN - process serial number (a unique PID-ish thingie)
544 * still ok for real Darwin & when run from command line */
545 if ( strncmp( ppsz_argv[ 1 ] , "-psn" , 4) == 0 )
546 /* for example -psn_0_9306113 */
548 /* GDMF!... I can't do this or else the MacOSX window server will
549 * not pick up the PSN and not register the app and we crash...
550 * hence the following kludge otherwise we'll get confused w/ argv[1]
551 * being an input file name */
553 ppsz_argv[ 1 ] = NULL;
555 *pi_argc = *pi_argc - 1;
561 /* Parse command line options */
563 while( ( i_cmd = getopt_long( *pi_argc, ppsz_argv,
564 psz_shortopts, longopts, 0 ) ) != EOF )
568 /* General/common options */
569 case 'h': /* -h, --help */
573 case 'H': /* -H, --longhelp */
577 case OPT_VERSION: /* --version */
581 case 'v': /* -v, --verbose */
582 p_main->i_warning_level--;
585 /* Interface warning messages level */
586 case 'I': /* -I, --intf */
587 main_PutPszVariable( INTF_METHOD_VAR, optarg );
589 case OPT_WARNING: /* --warning */
590 intf_ErrMsg( "intf error: `--warning' is deprecated, use `-v'" );
591 p_main->i_warning_level = atoi(optarg);
595 case OPT_NOAUDIO: /* --noaudio */
598 case 'A': /* -A, --aout */
599 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
601 case OPT_STEREO: /* --stereo */
602 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
604 case OPT_MONO: /* --mono */
605 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
609 case OPT_NOVIDEO: /* --novideo */
612 case 'V': /* -V, --vout */
613 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
615 case OPT_DISPLAY: /* --display */
616 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
618 case OPT_WIDTH: /* --width */
619 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
621 case OPT_HEIGHT: /* --height */
622 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
624 case 'g': /* -g, --grayscale */
625 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
627 case OPT_COLOR: /* --color */
628 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
630 case OPT_FULLSCREEN: /* --fullscreen */
631 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
633 case OPT_OVERLAY: /* --overlay */
634 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
636 case OPT_MOTION: /* --motion */
637 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
639 case OPT_IDCT: /* --idct */
640 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
642 case OPT_YUV: /* --yuv */
643 main_PutPszVariable( YUV_METHOD_VAR, optarg );
648 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
651 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
654 if ( ! strcmp(optarg, "ac3") )
655 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
656 else if ( ! strcmp(optarg, "lpcm") )
657 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
658 else if ( ! strcmp(optarg, "mpeg") )
659 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
661 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
664 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
667 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
671 case OPT_INPUT: /* --input */
672 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
674 case OPT_CHANNELS: /* --channels */
675 p_main->b_channels = 1;
677 case OPT_SERVER: /* --server */
678 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
680 case OPT_PORT: /* --port */
681 main_PutPszVariable( INPUT_PORT_VAR, optarg );
683 case OPT_BROADCAST: /* --broadcast */
684 main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
687 /* Synchro options */
689 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
692 /* Internal error: unknown option */
695 intf_ErrMsg( "intf error: unknown option `%s'",
696 ppsz_argv[optind - 1] );
703 if( p_main->i_warning_level < 0 )
705 p_main->i_warning_level = 0;
711 /*****************************************************************************
712 * GetFilenames: parse command line options which are not flags
713 *****************************************************************************
714 * Parse command line for input files.
715 *****************************************************************************/
716 static int GetFilenames( int i_argc, char *ppsz_argv[] )
720 /* We assume that the remaining parameters are filenames */
721 for( i_opt = optind; i_opt < i_argc; i_opt++ )
723 intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
724 ppsz_argv[ i_opt ] );
730 /*****************************************************************************
731 * Usage: print program usage
732 *****************************************************************************
733 * Print a short inline help. Message interface is initialized at this stage.
734 *****************************************************************************/
735 static void Usage( int i_fashion )
738 intf_MsgImm( "Usage: %s [options] [parameters] [file]...",
741 if( i_fashion == USAGE )
743 intf_MsgImm( "Try `%s --help' for more information.",
749 intf_MsgImm( "\nOptions:"
750 "\n -I, --intf <module> \tinterface method"
751 "\n -v, --verbose \tverbose mode (cumulative)"
753 "\n --noaudio \tdisable audio"
754 "\n -A, --aout <module> \taudio output method"
755 "\n --stereo, --mono \tstereo/mono audio"
757 "\n --novideo \tdisable video"
758 "\n -V, --vout <module> \tvideo output method"
759 "\n --display <display> \tdisplay string"
760 "\n --width <w>, --height <h> \tdisplay dimensions"
761 "\n -g, --grayscale \tgrayscale output"
762 "\n --fullscreen \tfullscreen output"
763 "\n --overlay \taccelerated display"
764 "\n --color \tcolor output"
765 "\n --motion <module> \tmotion compensation method"
766 "\n --idct <module> \tIDCT method"
767 "\n --yuv <module> \tYUV method"
768 "\n --synchro <type> \tforce synchro algorithm"
770 "\n -t, --dvdtitle <num> \tchoose DVD title"
771 "\n -T, --dvdchapter <num> \tchoose DVD chapter"
772 "\n -a, --dvdaudio <type> \tchoose DVD audio type"
773 "\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
774 "\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
776 "\n --input \tinput method"
777 "\n --channels \tenable channels"
778 "\n --server <host> \tvideo server address"
779 "\n --port <port> \tvideo server port"
780 "\n --broadcast \tlisten to a broadcast"
782 "\n -h, --help \tprint help and exit"
783 "\n -H, --longhelp \tprint long help and exit"
784 "\n --version \toutput version information and exit" );
786 if( i_fashion == SHORT_HELP )
789 /* Interface parameters */
790 intf_MsgImm( "\nInterface parameters:"
791 "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
792 "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
793 "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list" );
795 /* Audio parameters */
796 intf_MsgImm( "\nAudio parameters:"
797 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
798 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
799 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
800 "\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
802 /* Video parameters */
803 intf_MsgImm( "\nVideo parameters:"
804 "\n " VOUT_METHOD_VAR "=<method name> \tdisplay method"
805 "\n " VOUT_DISPLAY_VAR "=<display name> \tdisplay used"
806 "\n " VOUT_WIDTH_VAR "=<width> \tdisplay width"
807 "\n " VOUT_HEIGHT_VAR "=<height> \tdislay height"
808 "\n " VOUT_FB_DEV_VAR "=<filename> \tframebuffer device path"
809 "\n " VOUT_GRAYSCALE_VAR "={1|0} \tgrayscale or color output"
810 "\n " VOUT_FULLSCREEN_VAR "={1|0} \tfullscreen"
811 "\n " VOUT_OVERLAY_VAR "={1|0} \toverlay"
812 "\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
813 "\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
814 "\n " YUV_METHOD_VAR "=<method name> \tYUV method"
815 "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm" );
818 intf_MsgImm( "\nDVD parameters:"
819 "\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
820 "\n " INPUT_TITLE_VAR "=<title> \ttitle number"
821 "\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
822 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
823 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
824 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
826 /* Input parameters */
827 intf_MsgImm( "\nInput parameters:"
828 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
829 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
830 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
831 "\n " INPUT_BROADCAST_VAR "={1|0} \tbroadcast mode"
832 "\n " INPUT_CHANNEL_SERVER_VAR "=<hostname> \tchannel server"
833 "\n " INPUT_CHANNEL_PORT_VAR "=<port> \tchannel server port" );
837 /*****************************************************************************
838 * Version: print complete program version
839 *****************************************************************************
840 * Print complete program version and build number.
841 *****************************************************************************/
842 static void Version( void )
844 intf_MsgImm( VERSION_MESSAGE
845 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
846 "You may redistribute it under the terms of the GNU General Public License;\n"
847 "see the file named COPYING for details.\n"
848 "Written by the VideoLAN team at Ecole Centrale, Paris." );
851 /*****************************************************************************
852 * InitSignalHandler: system signal handler initialization
853 *****************************************************************************
854 * Set the signal handlers. SIGTERM is not intercepted, because we need at
855 * at least a method to kill the program when all other methods failed, and
856 * when we don't want to use SIGKILL.
857 *****************************************************************************/
858 static void InitSignalHandler( void )
860 /* Termination signals */
861 signal( SIGHUP, FatalSignalHandler );
862 signal( SIGINT, FatalSignalHandler );
863 signal( SIGQUIT, FatalSignalHandler );
866 signal( SIGALRM, SimpleSignalHandler );
867 signal( SIGPIPE, SimpleSignalHandler );
871 /*****************************************************************************
872 * SimpleSignalHandler: system signal handler
873 *****************************************************************************
874 * This function is called when a non fatal signal is received by the program.
875 *****************************************************************************/
876 static void SimpleSignalHandler( int i_signal )
878 /* Acknowledge the signal received */
879 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
883 /*****************************************************************************
884 * FatalSignalHandler: system signal handler
885 *****************************************************************************
886 * This function is called when a fatal signal is received by the program.
887 * It tries to end the program in a clean way.
888 *****************************************************************************/
889 static void FatalSignalHandler( int i_signal )
891 /* Once a signal has been trapped, the termination sequence will be
892 * armed and following signals will be ignored to avoid sending messages
893 * to an interface having been destroyed */
894 signal( SIGHUP, SIG_IGN );
895 signal( SIGINT, SIG_IGN );
896 signal( SIGQUIT, SIG_IGN );
898 /* Acknowledge the signal received */
899 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
901 /* Try to terminate everything - this is done by requesting the end of the
902 * interface thread */
903 p_main->p_intf->b_die = 1;
906 /*****************************************************************************
907 * CPUCapabilities: list the processors MMX support and other capabilities
908 *****************************************************************************
909 * This function is called to list extensions the CPU may have.
910 *****************************************************************************/
911 static int CPUCapabilities( void )
913 int i_capabilities = CPU_CAPABILITY_NONE;
915 #if defined( SYS_BEOS )
916 i_capabilities |= CPU_CAPABILITY_486
918 | CPU_CAPABILITY_MMX;
920 #elif defined( SYS_DARWIN1_3 )
922 struct host_basic_info hi;
924 host_name_port_t host;
927 char *psz_name, *psz_subname;
929 /* Should 'never' fail? */
930 host = mach_host_self();
932 i_size = sizeof( hi ) / sizeof( int );
933 ret = host_info( host, HOST_BASIC_INFO, ( host_info_t )&hi, &i_size );
935 if( ret != KERN_SUCCESS )
937 intf_ErrMsg( "error: couldn't get CPU information" );
938 return( i_capabilities );
941 slot_name( hi.cpu_type, hi.cpu_subtype, &psz_name, &psz_subname );
942 /* FIXME: need better way to detect newer proccessors.
943 * could do strncmp(a,b,5), but that's real ugly */
944 if( strcmp(psz_name, "ppc7400") || strcmp(psz_name, "ppc7450") )
946 i_capabilities |= CPU_CAPABILITY_ALTIVEC;
949 #elif defined( __i386__ )
950 unsigned int i_eax, i_ebx, i_ecx, i_edx;
953 # define cpuid( a ) \
954 asm volatile ( "cpuid" \
962 /* test for a 486 CPU */
963 asm volatile ( "pushfl\n\t"
965 "movl %%eax, %%ebx\n\t"
966 "xorl $0x200000, %%eax\n\t"
978 return( i_capabilities );
981 i_capabilities |= CPU_CAPABILITY_486;
983 /* the CPU supports the CPUID instruction - get its level */
988 return( i_capabilities );
991 /* FIXME: this isn't correct, since some 486s have cpuid */
992 i_capabilities |= CPU_CAPABILITY_586;
994 /* borrowed from mpeg2dec */
995 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
996 && ( i_edx == 0x69746e65 );
998 /* test for the MMX flag */
1001 if( ! (i_edx & 0x00800000) )
1003 return( i_capabilities );
1006 i_capabilities |= CPU_CAPABILITY_MMX;
1008 if( i_edx & 0x02000000 )
1010 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1013 /* test for additional capabilities */
1014 cpuid( 0x80000000 );
1016 if( i_eax < 0x80000001 )
1018 return( i_capabilities );
1021 /* list these additional capabilities */
1022 cpuid( 0x80000001 );
1024 if( i_edx & 0x80000000 )
1026 i_capabilities |= CPU_CAPABILITY_3DNOW;
1029 if( b_amd && ( i_edx & 0x00400000 ) )
1031 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1035 /* default behaviour */
1038 return( i_capabilities );