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 1.95 2001/05/15 16:19:42 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
99 #define OPT_NOVIDEO 160
100 #define OPT_DISPLAY 161
101 #define OPT_WIDTH 162
102 #define OPT_HEIGHT 163
103 #define OPT_COLOR 164
104 #define OPT_FULLSCREEN 165
105 #define OPT_OVERLAY 166
107 #define OPT_CHANNELS 170
108 #define OPT_SERVER 171
110 #define OPT_BROADCAST 173
112 #define OPT_INPUT 180
113 #define OPT_MOTION 181
116 #define OPT_DOWNMIX 184
117 #define OPT_IMDCT 185
119 #define OPT_SYNCHRO 190
120 #define OPT_WARNING 191
121 #define OPT_VERSION 192
129 static const struct option longopts[] =
131 /* name, has_arg, flag, val */
133 /* General/common options */
134 { "help", 0, 0, 'h' },
135 { "longhelp", 0, 0, 'H' },
136 { "version", 0, 0, OPT_VERSION },
138 /* Interface options */
139 { "intf", 1, 0, 'I' },
140 { "warning", 1, 0, OPT_WARNING },
143 { "noaudio", 0, 0, OPT_NOAUDIO },
144 { "aout", 1, 0, 'A' },
145 { "stereo", 0, 0, OPT_STEREO },
146 { "mono", 0, 0, OPT_MONO },
147 { "spdif", 0, 0, OPT_SPDIF },
148 { "downmix", 1, 0, OPT_DOWNMIX },
149 { "imdct", 1, 0, OPT_IMDCT },
152 { "novideo", 0, 0, OPT_NOVIDEO },
153 { "vout", 1, 0, 'V' },
154 { "display", 1, 0, OPT_DISPLAY },
155 { "width", 1, 0, OPT_WIDTH },
156 { "height", 1, 0, OPT_HEIGHT },
157 { "grayscale", 0, 0, 'g' },
158 { "color", 0, 0, OPT_COLOR },
159 { "motion", 1, 0, OPT_MOTION },
160 { "idct", 1, 0, OPT_IDCT },
161 { "yuv", 1, 0, OPT_YUV },
162 { "fullscreen", 0, 0, OPT_FULLSCREEN },
163 { "overlay", 0, 0, OPT_OVERLAY },
166 { "dvdtitle", 1, 0, 't' },
167 { "dvdchapter", 1, 0, 'T' },
168 { "dvdangle", 1, 0, 'u' },
169 { "dvdaudio", 1, 0, 'a' },
170 { "dvdchannel", 1, 0, 'c' },
171 { "dvdsubtitle", 1, 0, 's' },
174 { "input", 1, 0, OPT_INPUT },
175 { "channels", 0, 0, OPT_CHANNELS },
176 { "server", 1, 0, OPT_SERVER },
177 { "port", 1, 0, OPT_PORT },
178 { "broadcast", 1, 0, OPT_BROADCAST },
180 /* Synchro options */
181 { "synchro", 1, 0, OPT_SYNCHRO },
186 static const char *psz_shortopts = "hHvgt:T:u:a:s:c:I:A:V:";
188 /*****************************************************************************
189 * Global variable program_data - these are the only ones, see main.h and
191 *****************************************************************************/
193 module_bank_t *p_module_bank;
194 aout_bank_t *p_aout_bank;
195 vout_bank_t *p_vout_bank;
197 /*****************************************************************************
199 *****************************************************************************/
200 static int GetConfiguration ( int *pi_argc, char *ppsz_argv[],
202 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
203 static void Usage ( int i_fashion );
204 static void Version ( void );
206 static void InitSignalHandler ( void );
207 static void SimpleSignalHandler ( int i_signal );
208 static void FatalSignalHandler ( int i_signal );
210 static int CPUCapabilities ( void );
212 /*****************************************************************************
213 * main: parse command line, start interface and spawn threads
214 *****************************************************************************
215 * Steps during program execution are:
216 * -configuration parsing and messages interface initialization
217 * -opening of audio output device and some global modules
218 * -execution of interface, which exit on error or on user request
219 * -closing of audio output device and some global modules
220 * On error, the spawned threads are canceled, and the open devices closed.
221 *****************************************************************************/
222 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
224 main_t main_data; /* root of all data - see main.h */
225 module_bank_t module_bank;
226 aout_bank_t aout_bank;
227 vout_bank_t vout_bank;
229 p_main = &main_data; /* set up the global variables */
230 p_module_bank = &module_bank;
231 p_aout_bank = &aout_bank;
232 p_vout_bank = &vout_bank;
235 * Test if our code is likely to run on this CPU
237 p_main->i_cpu_capabilities = CPUCapabilities();
239 #if defined( __pentium__ ) || defined( __pentiumpro__ )
240 if( ! TestCPU( CPU_CAPABILITY_586 ) )
242 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
243 "please try a version without Pentium support\n" );
249 * System specific initialization code
251 #if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
252 system_Init( &i_argc, ppsz_argv, ppsz_env );
256 * Initialize messages interface
258 p_main->p_msg = intf_MsgCreate();
259 if( !p_main->p_msg ) /* start messages interface */
261 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
266 intf_MsgImm( COPYRIGHT_MESSAGE );
271 if( GetConfiguration( &i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
278 * Initialize playlist and get commandline files
280 p_main->p_playlist = intf_PlaylistCreate();
281 if( !p_main->p_playlist )
283 intf_ErrMsg( "playlist error: playlist initialization failed" );
287 intf_PlaylistInit( p_main->p_playlist );
290 * Get input filenames given as commandline arguments
292 GetFilenames( i_argc, ppsz_argv );
295 * Initialize module, aout and vout banks
302 * Initialize shared resources and libraries
304 if( p_main->b_channels && network_ChannelCreate() )
306 /* On error during Channels initialization, switch off channels */
307 intf_Msg( "Channels initialization failed : "
308 "Channel management is deactivated" );
309 p_main->b_channels = 0;
313 * Try to run the interface
315 p_main->p_intf = intf_Create();
316 if( p_main->p_intf == NULL )
318 intf_ErrMsg( "intf error: interface initialization failed" );
323 * Set signal handling policy for all threads
328 * This is the main loop
330 p_main->p_intf->pf_run( p_main->p_intf );
333 * Finished, destroy the interface
335 intf_Destroy( p_main->p_intf );
338 * Go back into channel 0 which is the network
340 if( p_main->b_channels )
342 network_ChannelJoin( COMMON_CHANNEL );
347 * Free module, aout and vout banks
356 intf_PlaylistDestroy( p_main->p_playlist );
359 * System specific cleaning code
361 #if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
366 * Terminate messages interface and program
368 intf_Msg( "intf: program terminated" );
374 /*****************************************************************************
375 * main_GetIntVariable: get the int value of an environment variable
376 *****************************************************************************
377 * This function is used to read some default parameters in modules.
378 *****************************************************************************/
379 int main_GetIntVariable( char *psz_name, int i_default )
381 char * psz_env; /* environment value */
382 char * psz_end; /* end of parsing index */
383 long int i_value; /* value */
385 psz_env = getenv( psz_name );
388 i_value = strtol( psz_env, &psz_end, 0 );
389 if( (*psz_env != '\0') && (*psz_end == '\0') )
397 /*****************************************************************************
398 * main_GetPszVariable: get the string value of an environment variable
399 *****************************************************************************
400 * This function is used to read some default parameters in modules.
401 *****************************************************************************/
402 char * main_GetPszVariable( char *psz_name, char *psz_default )
406 psz_env = getenv( psz_name );
411 return( psz_default );
414 /*****************************************************************************
415 * main_PutPszVariable: set the string value of an environment variable
416 *****************************************************************************
417 * This function is used to set some default parameters in modules. The use of
418 * this function will cause some memory leak: since some systems use the pointer
419 * passed to putenv to store the environment string, it can't be freed.
420 *****************************************************************************/
421 void main_PutPszVariable( char *psz_name, char *psz_value )
425 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
426 if( psz_env == NULL )
428 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
433 sprintf( psz_env, "%s=%s", psz_name, psz_value );
434 if( putenv( psz_env ) )
436 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
441 /*****************************************************************************
442 * main_PutIntVariable: set the integer value of an environment variable
443 *****************************************************************************
444 * This function is used to set some default parameters in modules. The use of
445 * this function will cause some memory leak: since some systems use the pointer
446 * passed to putenv to store the environment string, it can't be freed.
447 *****************************************************************************/
448 void main_PutIntVariable( char *psz_name, int i_value )
450 char psz_value[ 256 ]; /* buffer for value */
452 sprintf( psz_value, "%d", i_value );
453 main_PutPszVariable( psz_name, psz_value );
456 /* following functions are local */
458 /*****************************************************************************
459 * GetConfiguration: parse command line
460 *****************************************************************************
461 * Parse command line and configuration file for configuration. If the inline
462 * help is requested, the function Usage() is called and the function returns
463 * -1 (causing main() to exit). The messages interface is initialized at this
464 * stage, but most structures are not allocated, so only environment should
466 *****************************************************************************/
467 static int GetConfiguration( int *pi_argc, char *ppsz_argv[], char *ppsz_env[] )
472 /* Set default configuration and copy arguments */
473 p_main->i_argc = *pi_argc;
474 p_main->ppsz_argv = ppsz_argv;
475 p_main->ppsz_env = ppsz_env;
479 p_main->b_channels = 0;
481 p_main->i_warning_level = 0;
483 /* Get the executable name (similar to the basename command) */
484 p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
489 p_main->psz_arg0 = ++p_tmp;
498 /* When vlc.app is run by double clicking in Mac OS X, the 2nd arg
499 * is the PSN - process serial number (a unique PID-ish thingie)
500 * still ok for real Darwin & when run from command line */
501 if ( (*pi_argc > 1) && (strncmp( ppsz_argv[ 1 ] , "-psn" , 4 ) == 0) )
502 /* for example -psn_0_9306113 */
504 /* GDMF!... I can't do this or else the MacOSX window server will
505 * not pick up the PSN and not register the app and we crash...
506 * hence the following kludge otherwise we'll get confused w/ argv[1]
507 * being an input file name */
509 ppsz_argv[ 1 ] = NULL;
511 *pi_argc = *pi_argc - 1;
517 /* Parse command line options */
519 while( ( i_cmd = getopt_long( *pi_argc, ppsz_argv,
520 psz_shortopts, longopts, 0 ) ) != EOF )
524 /* General/common options */
525 case 'h': /* -h, --help */
529 case 'H': /* -H, --longhelp */
533 case OPT_VERSION: /* --version */
537 case 'v': /* -v, --verbose */
538 p_main->i_warning_level++;
541 /* Interface warning messages level */
542 case 'I': /* -I, --intf */
543 main_PutPszVariable( INTF_METHOD_VAR, optarg );
545 case OPT_WARNING: /* --warning */
546 intf_ErrMsg( "intf error: `--warning' is deprecated, use `-v'" );
547 p_main->i_warning_level = atoi(optarg);
551 case OPT_NOAUDIO: /* --noaudio */
554 case 'A': /* -A, --aout */
555 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
557 case OPT_STEREO: /* --stereo */
558 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
560 case OPT_MONO: /* --mono */
561 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
563 case OPT_SPDIF: /* --spdif */
564 main_PutIntVariable( AOUT_SPDIF_VAR, 1 );
566 case OPT_DOWNMIX: /* --downmix */
567 main_PutPszVariable( DOWNMIX_METHOD_VAR, optarg );
569 case OPT_IMDCT: /* --imdct */
570 main_PutPszVariable( IMDCT_METHOD_VAR, optarg );
574 case OPT_NOVIDEO: /* --novideo */
577 case 'V': /* -V, --vout */
578 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
580 case OPT_DISPLAY: /* --display */
581 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
583 case OPT_WIDTH: /* --width */
584 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
586 case OPT_HEIGHT: /* --height */
587 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
589 case 'g': /* -g, --grayscale */
590 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
592 case OPT_COLOR: /* --color */
593 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
595 case OPT_FULLSCREEN: /* --fullscreen */
596 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
598 case OPT_OVERLAY: /* --overlay */
599 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
601 case OPT_MOTION: /* --motion */
602 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
604 case OPT_IDCT: /* --idct */
605 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
607 case OPT_YUV: /* --yuv */
608 main_PutPszVariable( YUV_METHOD_VAR, optarg );
613 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
616 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
619 main_PutIntVariable( INPUT_ANGLE_VAR, atoi(optarg) );
622 if ( ! strcmp(optarg, "ac3") )
623 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
624 else if ( ! strcmp(optarg, "lpcm") )
625 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
626 else if ( ! strcmp(optarg, "mpeg") )
627 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
629 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
632 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
635 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
639 case OPT_INPUT: /* --input */
640 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
642 case OPT_CHANNELS: /* --channels */
643 p_main->b_channels = 1;
645 case OPT_SERVER: /* --server */
646 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
648 case OPT_PORT: /* --port */
649 main_PutPszVariable( INPUT_PORT_VAR, optarg );
651 case OPT_BROADCAST: /* --broadcast */
652 main_PutPszVariable( INPUT_BROADCAST_VAR, optarg );
655 /* Synchro options */
657 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
660 /* Internal error: unknown option */
663 intf_ErrMsg( "intf error: unknown option `%s'",
664 ppsz_argv[optind - 1] );
671 if( p_main->i_warning_level < 0 )
673 p_main->i_warning_level = 0;
679 /*****************************************************************************
680 * GetFilenames: parse command line options which are not flags
681 *****************************************************************************
682 * Parse command line for input files.
683 *****************************************************************************/
684 static int GetFilenames( int i_argc, char *ppsz_argv[] )
688 /* We assume that the remaining parameters are filenames */
689 for( i_opt = optind; i_opt < i_argc; i_opt++ )
691 intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
692 ppsz_argv[ i_opt ] );
698 /*****************************************************************************
699 * Usage: print program usage
700 *****************************************************************************
701 * Print a short inline help. Message interface is initialized at this stage.
702 *****************************************************************************/
703 static void Usage( int i_fashion )
706 intf_MsgImm( "Usage: %s [options] [parameters] [file]...",
709 if( i_fashion == USAGE )
711 intf_MsgImm( "Try `%s --help' for more information.",
717 intf_MsgImm( "\nOptions:"
718 "\n -I, --intf <module> \tinterface method"
719 "\n -v, --verbose \tverbose mode (cumulative)"
721 "\n --noaudio \tdisable audio"
722 "\n -A, --aout <module> \taudio output method"
723 "\n --stereo, --mono \tstereo/mono audio"
724 "\n --spdif \tAC3 pass-through mode"
725 "\n --downmix <module> \tAC3 downmix method"
726 "\n --imdct <module> \tAC3 IMDCT method"
728 "\n --novideo \tdisable video"
729 "\n -V, --vout <module> \tvideo output method"
730 "\n --display <display> \tdisplay string"
731 "\n --width <w>, --height <h> \tdisplay dimensions"
732 "\n -g, --grayscale \tgrayscale output"
733 "\n --fullscreen \tfullscreen output"
734 "\n --overlay \taccelerated display"
735 "\n --color \tcolor output"
736 "\n --motion <module> \tmotion compensation method"
737 "\n --idct <module> \tIDCT method"
738 "\n --yuv <module> \tYUV method"
739 "\n --synchro <type> \tforce synchro algorithm"
741 "\n -t, --dvdtitle <num> \tchoose DVD title"
742 "\n -T, --dvdchapter <num> \tchoose DVD chapter"
743 "\n -u, --dvdangle <num> \tchoose DVD angle"
744 "\n -a, --dvdaudio <type> \tchoose DVD audio type"
745 "\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
746 "\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
748 "\n --input \tinput method"
749 "\n --channels \tenable channels"
750 "\n --server <host> \tvideo server address"
751 "\n --port <port> \tvideo server port"
752 "\n --broadcast \tlisten to a broadcast"
754 "\n -h, --help \tprint help and exit"
755 "\n -H, --longhelp \tprint long help and exit"
756 "\n --version \toutput version information and exit" );
758 if( i_fashion == SHORT_HELP )
761 /* Interface parameters */
762 intf_MsgImm( "\nInterface parameters:"
763 "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
764 "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
765 "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list" );
767 /* Audio parameters */
768 intf_MsgImm( "\nAudio parameters:"
769 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
770 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
771 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
772 "\n " AOUT_SPDIF_VAR "={1|0} \tAC3 pass-through mode"
773 "\n " DOWNMIX_METHOD_VAR "=<method name> \tAC3 downmix method"
774 "\n " IMDCT_METHOD_VAR "=<method name> \tAC3 IMDCT method"
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_ANGLE_VAR "=<angle> \tangle number"
798 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
799 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
800 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
802 /* Input parameters */
803 intf_MsgImm( "\nInput parameters:"
804 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
805 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
806 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
807 "\n " INPUT_BROADCAST_VAR "=<addr> \tbroadcast mode"
808 "\n " INPUT_CHANNEL_SERVER_VAR "=<hostname> \tchannel server"
809 "\n " INPUT_CHANNEL_PORT_VAR "=<port> \tchannel server port" );
813 /*****************************************************************************
814 * Version: print complete program version
815 *****************************************************************************
816 * Print complete program version and build number.
817 *****************************************************************************/
818 static void Version( void )
820 intf_MsgImm( VERSION_MESSAGE
821 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
822 "You may redistribute it under the terms of the GNU General Public License;\n"
823 "see the file named COPYING for details.\n"
824 "Written by the VideoLAN team at Ecole Centrale, Paris." );
827 /*****************************************************************************
828 * InitSignalHandler: system signal handler initialization
829 *****************************************************************************
830 * Set the signal handlers. SIGTERM is not intercepted, because we need at
831 * at least a method to kill the program when all other methods failed, and
832 * when we don't want to use SIGKILL.
833 *****************************************************************************/
834 static void InitSignalHandler( void )
836 /* Termination signals */
838 signal( SIGINT, FatalSignalHandler );
839 signal( SIGHUP, FatalSignalHandler );
840 signal( SIGQUIT, FatalSignalHandler );
843 signal( SIGALRM, SimpleSignalHandler );
844 signal( SIGPIPE, SimpleSignalHandler );
849 /*****************************************************************************
850 * SimpleSignalHandler: system signal handler
851 *****************************************************************************
852 * This function is called when a non fatal signal is received by the program.
853 *****************************************************************************/
854 static void SimpleSignalHandler( int i_signal )
856 /* Acknowledge the signal received */
857 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
861 /*****************************************************************************
862 * FatalSignalHandler: system signal handler
863 *****************************************************************************
864 * This function is called when a fatal signal is received by the program.
865 * It tries to end the program in a clean way.
866 *****************************************************************************/
867 static void FatalSignalHandler( int i_signal )
869 /* Once a signal has been trapped, the termination sequence will be
870 * armed and following signals will be ignored to avoid sending messages
871 * to an interface having been destroyed */
873 signal( SIGINT, SIG_IGN );
874 signal( SIGHUP, SIG_IGN );
875 signal( SIGQUIT, SIG_IGN );
878 /* Acknowledge the signal received */
879 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
881 /* Try to terminate everything - this is done by requesting the end of the
882 * interface thread */
883 p_main->p_intf->b_die = 1;
886 /*****************************************************************************
887 * CPUCapabilities: list the processors MMX support and other capabilities
888 *****************************************************************************
889 * This function is called to list extensions the CPU may have.
890 *****************************************************************************/
891 static int CPUCapabilities( void )
893 int i_capabilities = CPU_CAPABILITY_NONE;
895 #if defined( SYS_BEOS )
896 i_capabilities |= CPU_CAPABILITY_486
898 | CPU_CAPABILITY_MMX;
900 #elif defined( SYS_DARWIN1_3 )
902 struct host_basic_info hi;
904 host_name_port_t host;
907 char *psz_name, *psz_subname;
909 /* Should 'never' fail? */
910 host = mach_host_self();
912 i_size = sizeof( hi ) / sizeof( int );
913 ret = host_info( host, HOST_BASIC_INFO, ( host_info_t )&hi, &i_size );
915 if( ret != KERN_SUCCESS )
917 intf_ErrMsg( "error: couldn't get CPU information" );
918 return( i_capabilities );
921 slot_name( hi.cpu_type, hi.cpu_subtype, &psz_name, &psz_subname );
922 /* FIXME: need better way to detect newer proccessors.
923 * could do strncmp(a,b,5), but that's real ugly */
924 if( strcmp(psz_name, "ppc7400") || strcmp(psz_name, "ppc7450") )
926 i_capabilities |= CPU_CAPABILITY_ALTIVEC;
929 #elif defined( __i386__ )
930 unsigned int i_eax, i_ebx, i_ecx, i_edx;
933 # define cpuid( a ) \
934 asm volatile ( "cpuid" \
942 /* test for a 486 CPU */
943 asm volatile ( "pushfl\n\t"
945 "movl %%eax, %%ebx\n\t"
946 "xorl $0x200000, %%eax\n\t"
958 return( i_capabilities );
961 i_capabilities |= CPU_CAPABILITY_486;
963 /* the CPU supports the CPUID instruction - get its level */
968 return( i_capabilities );
971 /* FIXME: this isn't correct, since some 486s have cpuid */
972 i_capabilities |= CPU_CAPABILITY_586;
974 /* borrowed from mpeg2dec */
975 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
976 && ( i_edx == 0x69746e65 );
978 /* test for the MMX flag */
981 if( ! (i_edx & 0x00800000) )
983 return( i_capabilities );
986 i_capabilities |= CPU_CAPABILITY_MMX;
988 if( i_edx & 0x02000000 )
990 i_capabilities |= CPU_CAPABILITY_MMXEXT;
991 i_capabilities |= CPU_CAPABILITY_SSE;
994 /* test for additional capabilities */
997 if( i_eax < 0x80000001 )
999 return( i_capabilities );
1002 /* list these additional capabilities */
1003 cpuid( 0x80000001 );
1005 if( i_edx & 0x80000000 )
1007 i_capabilities |= CPU_CAPABILITY_3DNOW;
1010 if( b_amd && ( i_edx & 0x00400000 ) )
1012 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1015 /* default behaviour */
1018 return( i_capabilities );