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* Got Makefile to launch ./configure almost properly. $(MAKECMDGOALS) rules !
[vlc.git] / src / interface / main.c
blob332287977a2f6b4b54f7482b4031a045817c230c
1 /*****************************************************************************
2 * main.c: main vlc source
3 * Includes the main() function for vlc. Parses command line, start interface
4 * and spawn threads.
5 *****************************************************************************
6 * Copyright (C) 1998, 1999, 2000 VideoLAN
7 * $Id: main.c,v 1.111 2001/08/07 02:48:25 sam Exp $
8 *
9 * Authors: Vincent Seguin <seguin@via.ecp.fr>
10 * Samuel Hocevar <sam@zoy.org>
11 *
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.
16 *
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.
21 *
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 *****************************************************************************/
26
27 /*****************************************************************************
28 * Preamble
29 *****************************************************************************/
30 #include "defs.h"
31
32 #include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
33 #include <stdio.h> /* sprintf() */
34 #include <setjmp.h> /* longjmp, setjmp */
35
36 #ifdef HAVE_GETOPT_LONG
37 # ifdef HAVE_GETOPT_H
38 # include <getopt.h> /* getopt() */
39 # endif
40 #else
41 # include "GNUgetopt/getopt.h"
42 #endif
43
44 #ifdef SYS_DARWIN
45 # include <mach/mach.h> /* Altivec detection */
46 # include <mach/mach_error.h> /* some day the header files||compiler *
47 will define it for us */
48 # include <mach/bootstrap.h>
49 #endif
50
51 #ifndef WIN32
52 # include <netinet/in.h> /* BSD: struct in_addr */
53 #endif
54
55 #ifdef HAVE_UNISTD_H
56 # include <unistd.h>
57 #elif defined( _MSC_VER ) && defined( _WIN32 )
58 # include <io.h>
59 #endif
60
61 #include <errno.h> /* ENOMEM */
62 #include <stdlib.h> /* getenv(), strtol(), */
63 #include <string.h> /* strerror() */
64 #include <fcntl.h> /* open(), O_WRONLY */
65 #include <sys/stat.h> /* S_IREAD */
66
67 #include "config.h"
68 #include "common.h"
69 #include "debug.h"
70 #include "threads.h"
71 #include "mtime.h"
72 #include "tests.h" /* TestCPU() */
73 #include "modules.h"
74
75 #include "stream_control.h"
76 #include "input_ext-intf.h"
77
78 #include "intf_msg.h"
79 #include "intf_playlist.h"
80 #include "interface.h"
81
82 #include "audio_output.h"
83
84 #include "video.h"
85 #include "video_output.h"
86
87 #ifdef SYS_BEOS
88 # include "beos_specific.h"
89 #endif
90
91 #ifdef SYS_DARWIN
92 # include "darwin_specific.h"
93 #endif
94
95 #include "netutils.h" /* network_ChannelJoin */
96
97 #include "main.h"
98
99 /*****************************************************************************
100 * Command line options constants. If something is changed here, be sure that
101 * GetConfiguration and Usage are also changed.
102 *****************************************************************************/
103
104 /* Long options return values - note that values corresponding to short options
105 * chars, and in general any regular char, should be avoided */
106 #define OPT_NOAUDIO 150
107 #define OPT_STEREO 151
108 #define OPT_MONO 152
109 #define OPT_SPDIF 153
110
111 #define OPT_NOVIDEO 160
112 #define OPT_DISPLAY 161
113 #define OPT_WIDTH 162
114 #define OPT_HEIGHT 163
115 #define OPT_COLOR 164
116 #define OPT_FULLSCREEN 165
117 #define OPT_OVERLAY 166
118 #define OPT_SMP 167
119
120 #define OPT_CHANNELS 170
121 #define OPT_SERVER 171
122 #define OPT_PORT 172
123 #define OPT_BROADCAST 173
124
125 #define OPT_INPUT 180
126 #define OPT_MOTION 181
127 #define OPT_IDCT 182
128 #define OPT_YUV 183
129 #define OPT_DOWNMIX 184
130 #define OPT_IMDCT 185
131
132 #define OPT_SYNCHRO 190
133 #define OPT_WARNING 191
134 #define OPT_VERSION 192
135 #define OPT_STDOUT 193
136
137 /* Usage fashion */
138 #define USAGE 0
139 #define SHORT_HELP 1
140 #define LONG_HELP 2
141
142 /* Needed for x86 CPU capabilities detection */
143 #define cpuid( a ) \
144 asm volatile ( "cpuid" \
145 : "=a" ( i_eax ), \
146 "=b" ( i_ebx ), \
147 "=c" ( i_ecx ), \
148 "=d" ( i_edx ) \
149 : "a" ( a ) \
150 : "cc" );
151
152 /* Long options */
153 static const struct option longopts[] =
154 {
155 /* name, has_arg, flag, val */
156
157 /* General/common options */
158 { "help", 0, 0, 'h' },
159 { "longhelp", 0, 0, 'H' },
160 { "version", 0, 0, OPT_VERSION },
161
162 /* Interface options */
163 { "intf", 1, 0, 'I' },
164 { "warning", 1, 0, OPT_WARNING },
165 { "stdout", 1, 0, OPT_STDOUT },
166
167 /* Audio options */
168 { "noaudio", 0, 0, OPT_NOAUDIO },
169 { "aout", 1, 0, 'A' },
170 { "stereo", 0, 0, OPT_STEREO },
171 { "mono", 0, 0, OPT_MONO },
172 { "spdif", 0, 0, OPT_SPDIF },
173 { "downmix", 1, 0, OPT_DOWNMIX },
174 { "imdct", 1, 0, OPT_IMDCT },
175
176 /* Video options */
177 { "novideo", 0, 0, OPT_NOVIDEO },
178 { "vout", 1, 0, 'V' },
179 { "display", 1, 0, OPT_DISPLAY },
180 { "width", 1, 0, OPT_WIDTH },
181 { "height", 1, 0, OPT_HEIGHT },
182 { "grayscale", 0, 0, 'g' },
183 { "color", 0, 0, OPT_COLOR },
184 { "motion", 1, 0, OPT_MOTION },
185 { "idct", 1, 0, OPT_IDCT },
186 { "yuv", 1, 0, OPT_YUV },
187 { "fullscreen", 0, 0, OPT_FULLSCREEN },
188 { "overlay", 0, 0, OPT_OVERLAY },
189 { "smp", 1, 0, OPT_SMP },
190
191 /* DVD options */
192 { "dvdtitle", 1, 0, 't' },
193 { "dvdchapter", 1, 0, 'T' },
194 { "dvdangle", 1, 0, 'u' },
195 { "dvdaudio", 1, 0, 'a' },
196 { "dvdchannel", 1, 0, 'c' },
197 { "dvdsubtitle", 1, 0, 's' },
198
199 /* Input options */
200 { "input", 1, 0, OPT_INPUT },
201 { "server", 1, 0, OPT_SERVER },
202 { "port", 1, 0, OPT_PORT },
203 { "broadcast", 1, 0, OPT_BROADCAST },
204 { "channels", 0, 0, OPT_CHANNELS },
205
206 /* Synchro options */
207 { "synchro", 1, 0, OPT_SYNCHRO },
208 { 0, 0, 0, 0 }
209 };
210
211 /* Short options */
212 static const char *psz_shortopts = "hHvgt:T:u:a:s:c:I:A:V:";
213
214 /*****************************************************************************
215 * Global variable program_data - these are the only ones, see main.h and
216 * modules.h
217 *****************************************************************************/
218 main_t *p_main;
219 module_bank_t *p_module_bank;
220 aout_bank_t *p_aout_bank;
221 vout_bank_t *p_vout_bank;
222
223 /*****************************************************************************
224 * Local prototypes
225 *****************************************************************************/
226 static int GetConfiguration ( int *pi_argc, char *ppsz_argv[],
227 char *ppsz_env[] );
228 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
229 static void Usage ( int i_fashion );
230 static void Version ( void );
231
232 static void InitSignalHandler ( void );
233 static void SimpleSignalHandler ( int i_signal );
234 static void FatalSignalHandler ( int i_signal );
235 static void InstructionSignalHandler( int i_signal );
236 static int CPUCapabilities ( void );
237
238 static int RedirectSTDOUT ( void );
239 static void ShowConsole ( void );
240
241 static jmp_buf env;
242 static int i_illegal;
243
244 /*****************************************************************************
245 * main: parse command line, start interface and spawn threads
246 *****************************************************************************
247 * Steps during program execution are:
248 * -configuration parsing and messages interface initialization
249 * -opening of audio output device and some global modules
250 * -execution of interface, which exit on error or on user request
251 * -closing of audio output device and some global modules
252 * On error, the spawned threads are canceled, and the open devices closed.
253 *****************************************************************************/
254 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
255 {
256 main_t main_data; /* root of all data - see main.h */
257 module_bank_t module_bank;
258 aout_bank_t aout_bank;
259 vout_bank_t vout_bank;
260
261 p_main = &main_data; /* set up the global variables */
262 p_module_bank = &module_bank;
263 p_aout_bank = &aout_bank;
264 p_vout_bank = &vout_bank;
265
266 /*
267 * Initialize threads system
268 */
269 vlc_threads_init( );
270
271 /*
272 * Test if our code is likely to run on this CPU
273 */
274 p_main->i_cpu_capabilities = CPUCapabilities();
275
276 #if defined( __pentium__ ) || defined( __pentiumpro__ )
277 if( ! TestCPU( CPU_CAPABILITY_586 ) )
278 {
279 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
280 "please try a version without Pentium support\n" );
281 return( 1 );
282 }
283 #endif
284
285 /*
286 * System specific initialization code
287 */
288 #if defined( SYS_BEOS ) || defined( SYS_DARWIN )
289 system_Init( &i_argc, ppsz_argv, ppsz_env );
290 #elif defined( WIN32 )
291 _fmode = _O_BINARY; /* sets the default file-translation mode on Win32 */
292 #endif
293
294 /*
295 * Initialize messages interface
296 */
297 p_main->p_msg = intf_MsgCreate();
298 if( !p_main->p_msg ) /* start messages interface */
299 {
300 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
301 strerror(errno) );
302 return( errno );
303 }
304
305 intf_MsgImm( COPYRIGHT_MESSAGE );
306
307 /*
308 * Read configuration
309 */
310 if( GetConfiguration( &i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
311 {
312 intf_MsgDestroy();
313 return( errno );
314 }
315
316 /*
317 * Redirect the standard output if required by the user, and on Win32 we
318 * also open a console to display the debug messages.
319 */
320 RedirectSTDOUT();
321
322 /*
323 * Initialize playlist and get commandline files
324 */
325 p_main->p_playlist = intf_PlaylistCreate();
326 if( !p_main->p_playlist )
327 {
328 intf_ErrMsg( "playlist error: playlist initialization failed" );
329 intf_MsgDestroy();
330 return( errno );
331 }
332 intf_PlaylistInit( p_main->p_playlist );
333
334 /*
335 * Get input filenames given as commandline arguments
336 */
337 GetFilenames( i_argc, ppsz_argv );
338
339 /*
340 * Initialize module, aout and vout banks
341 */
342 module_InitBank();
343 aout_InitBank();
344 vout_InitBank();
345
346 /*
347 * Initialize shared resources and libraries
348 */
349 if( main_GetIntVariable( INPUT_NETWORK_CHANNEL_VAR,
350 INPUT_NETWORK_CHANNEL_DEFAULT ) &&
351 network_ChannelCreate() )
352 {
353 /* On error during Channels initialization, switch off channels */
354 intf_Msg( "Channels initialization failed : "
355 "Channel management is deactivated" );
356 main_PutIntVariable( INPUT_NETWORK_CHANNEL_VAR, 0 );
357 }
358
359 /*
360 * Try to run the interface
361 */
362 p_main->p_intf = intf_Create();
363 if( p_main->p_intf == NULL )
364 {
365 intf_ErrMsg( "intf error: interface initialization failed" );
366 }
367 else
368 {
369 /*
370 * Set signal handling policy for all threads
371 */
372 InitSignalHandler();
373
374 /*
375 * This is the main loop
376 */
377 p_main->p_intf->pf_run( p_main->p_intf );
378
379 /*
380 * Finished, destroy the interface
381 */
382 intf_Destroy( p_main->p_intf );
383
384 /*
385 * Go back into channel 0 which is the network
386 */
387 if( main_GetIntVariable( INPUT_NETWORK_CHANNEL_VAR,
388 INPUT_NETWORK_CHANNEL_DEFAULT ) )
389 {
390 network_ChannelJoin( COMMON_CHANNEL );
391 }
392 }
393
394 /*
395 * Free module, aout and vout banks
396 */
397 vout_EndBank();
398 aout_EndBank();
399 module_EndBank();
400
401 /*
402 * Free playlist
403 */
404 intf_PlaylistDestroy( p_main->p_playlist );
405
406 /*
407 * System specific cleaning code
408 */
409 #if defined( SYS_BEOS ) || defined( SYS_DARWIN )
410 system_End();
411 #endif
412
413
414 /*
415 * Terminate messages interface and program
416 */
417 intf_Msg( "intf: program terminated" );
418 intf_MsgDestroy();
419
420 /*
421 * Stop threads system
422 */
423 vlc_threads_end( );
424
425 return 0;
426 }
427
428 /*****************************************************************************
429 * main_GetIntVariable: get the int value of an environment variable
430 *****************************************************************************
431 * This function is used to read some default parameters in modules.
432 *****************************************************************************/
433 int main_GetIntVariable( char *psz_name, int i_default )
434 {
435 char * psz_env; /* environment value */
436 char * psz_end; /* end of parsing index */
437 long int i_value; /* value */
438
439 psz_env = getenv( psz_name );
440 if( psz_env )
441 {
442 i_value = strtol( psz_env, &psz_end, 0 );
443 if( (*psz_env != '\0') && (*psz_end == '\0') )
444 {
445 return( i_value );
446 }
447 }
448 return( i_default );
449 }
450
451 /*****************************************************************************
452 * main_GetPszVariable: get the string value of an environment variable
453 *****************************************************************************
454 * This function is used to read some default parameters in modules.
455 *****************************************************************************/
456 char * main_GetPszVariable( char *psz_name, char *psz_default )
457 {
458 char *psz_env;
459
460 psz_env = getenv( psz_name );
461 if( psz_env )
462 {
463 return( psz_env );
464 }
465 return( psz_default );
466 }
467
468 /*****************************************************************************
469 * main_PutPszVariable: set the string value of an environment variable
470 *****************************************************************************
471 * This function is used to set some default parameters in modules. The use of
472 * this function will cause some memory leak: since some systems use the pointer
473 * passed to putenv to store the environment string, it can't be freed.
474 *****************************************************************************/
475 void main_PutPszVariable( char *psz_name, char *psz_value )
476 {
477 char *psz_env;
478
479 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
480 if( psz_env == NULL )
481 {
482 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
483 strerror(ENOMEM) );
484 }
485 else
486 {
487 sprintf( psz_env, "%s=%s", psz_name, psz_value );
488 if( putenv( psz_env ) )
489 {
490 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
491 }
492 }
493 }
494
495 /*****************************************************************************
496 * main_PutIntVariable: set the integer value of an environment variable
497 *****************************************************************************
498 * This function is used to set some default parameters in modules. The use of
499 * this function will cause some memory leak: since some systems use the pointer
500 * passed to putenv to store the environment string, it can't be freed.
501 *****************************************************************************/
502 void main_PutIntVariable( char *psz_name, int i_value )
503 {
504 char psz_value[ 256 ]; /* buffer for value */
505
506 sprintf( psz_value, "%d", i_value );
507 main_PutPszVariable( psz_name, psz_value );
508 }
509
510 /* following functions are local */
511
512 /*****************************************************************************
513 * GetConfiguration: parse command line
514 *****************************************************************************
515 * Parse command line and configuration file for configuration. If the inline
516 * help is requested, the function Usage() is called and the function returns
517 * -1 (causing main() to exit). The messages interface is initialized at this
518 * stage, but most structures are not allocated, so only environment should
519 * be used.
520 *****************************************************************************/
521 static int GetConfiguration( int *pi_argc, char *ppsz_argv[], char *ppsz_env[] )
522 {
523 int i_cmd;
524 char *p_tmp;
525
526 /* Set default configuration and copy arguments */
527 p_main->i_argc = *pi_argc;
528 p_main->ppsz_argv = ppsz_argv;
529 p_main->ppsz_env = ppsz_env;
530
531 p_main->b_audio = 1;
532 p_main->b_video = 1;
533
534 p_main->i_warning_level = 0;
535
536 p_main->p_channel = NULL;
537
538 /* Get the executable name (similar to the basename command) */
539 p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
540 while( *p_tmp )
541 {
542 if( *p_tmp == '/' )
543 {
544 p_main->psz_arg0 = ++p_tmp;
545 }
546 else
547 {
548 ++p_tmp;
549 }
550 }
551
552 #ifdef SYS_DARWIN
553 /* When vlc.app is run by double clicking in Mac OS X, the 2nd arg
554 * is the PSN - process serial number (a unique PID-ish thingie)
555 * still ok for real Darwin & when run from command line */
556 if ( (*pi_argc > 1) && (strncmp( ppsz_argv[ 1 ] , "-psn" , 4 ) == 0) )
557 /* for example -psn_0_9306113 */
558 {
559 /* GDMF!... I can't do this or else the MacOSX window server will
560 * not pick up the PSN and not register the app and we crash...
561 * hence the following kludge otherwise we'll get confused w/ argv[1]
562 * being an input file name */
563 #if 0
564 ppsz_argv[ 1 ] = NULL;
565 #endif
566 *pi_argc = *pi_argc - 1;
567 pi_argc--;
568 return( 0 );
569 }
570 #endif
571
572 /* Parse command line options */
573 opterr = 0;
574 while( ( i_cmd = getopt_long( *pi_argc, ppsz_argv,
575 psz_shortopts, longopts, 0 ) ) != EOF )
576 {
577 switch( i_cmd )
578 {
579 /* General/common options */
580 case 'h': /* -h, --help */
581 ShowConsole();
582 RedirectSTDOUT();
583 Usage( SHORT_HELP );
584 #ifdef WIN32 /* Pause the console because it's destroyed when we exit */
585 if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
586 INTF_STDOUT_DEFAULT ) ) == 0 )
587 {
588 /* No stdout redirection has been asked for */
589 intf_MsgImm( "\nPress the RETURN key to continue..." );
590 getchar();
591 }
592 #endif
593 return( -1 );
594 break;
595 case 'H': /* -H, --longhelp */
596 ShowConsole();
597 RedirectSTDOUT();
598 Usage( LONG_HELP );
599 #ifdef WIN32 /* Pause the console because it's destroyed when we exit */
600 if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
601 INTF_STDOUT_DEFAULT ) ) == 0 )
602 {
603 /* No stdout redirection has been asked for */
604 intf_MsgImm( "\nPress the RETURN key to continue..." );
605 getchar();
606 }
607 #endif
608 return( -1 );
609 break;
610 case OPT_VERSION: /* --version */
611 ShowConsole();
612 RedirectSTDOUT();
613 Version();
614 #ifdef WIN32 /* Pause the console because it's destroyed when we exit */
615 if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
616 INTF_STDOUT_DEFAULT ) ) == 0 )
617 {
618 /* No stdout redirection has been asked for */
619 intf_MsgImm( "\nPress the RETURN key to continue..." );
620 getchar();
621 }
622 #endif
623 return( -1 );
624 break;
625 case 'v': /* -v, --verbose */
626 p_main->i_warning_level++;
627 break;
628
629 /* Interface warning messages level */
630 case 'I': /* -I, --intf */
631 main_PutPszVariable( INTF_METHOD_VAR, optarg );
632 break;
633 case OPT_WARNING: /* --warning */
634 intf_ErrMsg( "intf error: `--warning' is deprecated, use `-v'" );
635 p_main->i_warning_level = atoi(optarg);
636 break;
637
638 case OPT_STDOUT: /* --stdout */
639 main_PutPszVariable( INTF_STDOUT_VAR, optarg );
640 break;
641
642 /* Audio options */
643 case OPT_NOAUDIO: /* --noaudio */
644 p_main->b_audio = 0;
645 break;
646 case 'A': /* -A, --aout */
647 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
648 break;
649 case OPT_STEREO: /* --stereo */
650 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
651 break;
652 case OPT_MONO: /* --mono */
653 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
654 break;
655 case OPT_SPDIF: /* --spdif */
656 main_PutIntVariable( AOUT_SPDIF_VAR, 1 );
657 break;
658 case OPT_DOWNMIX: /* --downmix */
659 main_PutPszVariable( DOWNMIX_METHOD_VAR, optarg );
660 break;
661 case OPT_IMDCT: /* --imdct */
662 main_PutPszVariable( IMDCT_METHOD_VAR, optarg );
663 break;
664
665 /* Video options */
666 case OPT_NOVIDEO: /* --novideo */
667 p_main->b_video = 0;
668 break;
669 case 'V': /* -V, --vout */
670 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
671 break;
672 case OPT_DISPLAY: /* --display */
673 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
674 break;
675 case OPT_WIDTH: /* --width */
676 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
677 break;
678 case OPT_HEIGHT: /* --height */
679 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
680 break;
681 case 'g': /* -g, --grayscale */
682 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
683 break;
684 case OPT_COLOR: /* --color */
685 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
686 break;
687 case OPT_FULLSCREEN: /* --fullscreen */
688 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
689 break;
690 case OPT_OVERLAY: /* --overlay */
691 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
692 break;
693 case OPT_MOTION: /* --motion */
694 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
695 break;
696 case OPT_IDCT: /* --idct */
697 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
698 break;
699 case OPT_YUV: /* --yuv */
700 main_PutPszVariable( YUV_METHOD_VAR, optarg );
701 break;
702 case OPT_SMP: /* --smp */
703 main_PutIntVariable( VDEC_SMP_VAR, atoi(optarg) );
704 break;
705
706 /* DVD options */
707 case 't':
708 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
709 break;
710 case 'T':
711 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
712 break;
713 case 'u':
714 main_PutIntVariable( INPUT_ANGLE_VAR, atoi(optarg) );
715 break;
716 case 'a':
717 if ( ! strcmp(optarg, "ac3") )
718 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
719 else if ( ! strcmp(optarg, "lpcm") )
720 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
721 else if ( ! strcmp(optarg, "mpeg") )
722 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
723 else
724 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
725 break;
726 case 'c':
727 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
728 break;
729 case 's':
730 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
731 break;
732
733 /* Input options */
734 case OPT_INPUT: /* --input */
735 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
736 break;
737 case OPT_CHANNELS: /* --channels */
738 main_PutIntVariable( INPUT_NETWORK_CHANNEL_VAR, 1 );
739 break;
740 case OPT_SERVER: /* --server */
741 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
742 break;
743 case OPT_PORT: /* --port */
744 main_PutPszVariable( INPUT_PORT_VAR, optarg );
745 break;
746 case OPT_BROADCAST: /* --broadcast */
747 main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
748 main_PutPszVariable( INPUT_BCAST_ADDR_VAR, optarg );
749 break;
750
751 /* Synchro options */
752 case OPT_SYNCHRO:
753 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
754 break;
755
756 /* Internal error: unknown option */
757 case '?':
758 default:
759 ShowConsole();
760 RedirectSTDOUT();
761 intf_ErrMsg( "intf error: unknown option `%s'",
762 ppsz_argv[optind - 1] );
763 Usage( USAGE );
764 #ifdef WIN32 /* Pause the console because it's destroyed when we exit */
765 if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
766 INTF_STDOUT_DEFAULT ) ) == 0 )
767 {
768 /* No stdout redirection has been asked for */
769 intf_MsgImm( "\nPress the RETURN key to continue..." );
770 getchar();
771 }
772 #endif
773 return( EINVAL );
774 break;
775 }
776 }
777
778 if( p_main->i_warning_level < 0 )
779 {
780 p_main->i_warning_level = 0;
781 }
782
783 return( 0 );
784 }
785
786 /*****************************************************************************
787 * GetFilenames: parse command line options which are not flags
788 *****************************************************************************
789 * Parse command line for input files.
790 *****************************************************************************/
791 static int GetFilenames( int i_argc, char *ppsz_argv[] )
792 {
793 int i_opt;
794
795 /* We assume that the remaining parameters are filenames */
796 for( i_opt = optind; i_opt < i_argc; i_opt++ )
797 {
798 intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
799 ppsz_argv[ i_opt ] );
800 }
801
802 return( 0 );
803 }
804
805 /*****************************************************************************
806 * Usage: print program usage
807 *****************************************************************************
808 * Print a short inline help. Message interface is initialized at this stage.
809 *****************************************************************************/
810 static void Usage( int i_fashion )
811 {
812 /* Usage */
813 intf_MsgImm( "Usage: %s [options] [parameters] [file]...",
814 p_main->psz_arg0 );
815
816 if( i_fashion == USAGE )
817 {
818 intf_MsgImm( "Try `%s --help' for more information.",
819 p_main->psz_arg0 );
820 return;
821 }
822
823 /* Options */
824 intf_MsgImm( "\nOptions:"
825 "\n -I, --intf <module> \tinterface method"
826 "\n -v, --verbose \tverbose mode (cumulative)"
827 "\n --stdout <filename> \tredirect console stdout"
828 "\n"
829 "\n --noaudio \tdisable audio"
830 "\n -A, --aout <module> \taudio output method"
831 "\n --stereo, --mono \tstereo/mono audio"
832 "\n --spdif \tAC3 pass-through mode"
833 "\n --downmix <module> \tAC3 downmix method"
834 "\n --imdct <module> \tAC3 IMDCT method"
835 "\n"
836 "\n --novideo \tdisable video"
837 "\n -V, --vout <module> \tvideo output method"
838 "\n --display <display> \tdisplay string"
839 "\n --width <w>, --height <h> \tdisplay dimensions"
840 "\n -g, --grayscale \tgrayscale output"
841 "\n --fullscreen \tfullscreen output"
842 "\n --overlay \taccelerated display"
843 "\n --color \tcolor output"
844 "\n --motion <module> \tmotion compensation method"
845 "\n --idct <module> \tIDCT method"
846 "\n --yuv <module> \tYUV method"
847 "\n --synchro <type> \tforce synchro algorithm"
848 "\n --smp <number of threads> \tuse several processors"
849 "\n"
850 "\n -t, --dvdtitle <num> \tchoose DVD title"
851 "\n -T, --dvdchapter <num> \tchoose DVD chapter"
852 "\n -u, --dvdangle <num> \tchoose DVD angle"
853 "\n -a, --dvdaudio <type> \tchoose DVD audio type"
854 "\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
855 "\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
856 "\n"
857 "\n --input \tinput method"
858 "\n --channels \tenable channels"
859 "\n --server <host> \tvideo server address"
860 "\n --port <port> \tvideo server port"
861 "\n --broadcast \tlisten to a broadcast"
862 "\n"
863 "\n -h, --help \tprint help and exit"
864 "\n -H, --longhelp \tprint long help and exit"
865 "\n --version \toutput version information and exit" );
866
867 if( i_fashion == SHORT_HELP )
868 return;
869
870 /* Interface parameters */
871 intf_MsgImm( "\nInterface parameters:"
872 "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
873 "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
874 "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list"
875 "\n " INTF_STDOUT_VAR "=<filename> \tredirect console stdout" );
876
877 /* Audio parameters */
878 intf_MsgImm( "\nAudio parameters:"
879 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
880 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
881 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
882 "\n " AOUT_SPDIF_VAR "={1|0} \tAC3 pass-through mode"
883 "\n " DOWNMIX_METHOD_VAR "=<method name> \tAC3 downmix method"
884 "\n " IMDCT_METHOD_VAR "=<method name> \tAC3 IMDCT method"
885 "\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
886
887 /* Video parameters */
888 intf_MsgImm( "\nVideo parameters:"
889 "\n " VOUT_METHOD_VAR "=<method name> \tdisplay method"
890 "\n " VOUT_DISPLAY_VAR "=<display name> \tdisplay used"
891 "\n " VOUT_WIDTH_VAR "=<width> \tdisplay width"
892 "\n " VOUT_HEIGHT_VAR "=<height> \tdislay height"
893 "\n " VOUT_FB_DEV_VAR "=<filename> \tframebuffer device path"
894 "\n " VOUT_GRAYSCALE_VAR "={1|0} \tgrayscale or color output"
895 "\n " VOUT_FULLSCREEN_VAR "={1|0} \tfullscreen"
896 "\n " VOUT_OVERLAY_VAR "={1|0} \toverlay"
897 "\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
898 "\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
899 "\n " YUV_METHOD_VAR "=<method name> \tYUV method"
900 "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm"
901 "\n " VDEC_SMP_VAR "=<number of threads> \tuse several processors" );
902
903 /* DVD parameters */
904 intf_MsgImm( "\nDVD parameters:"
905 "\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
906 "\n " INPUT_TITLE_VAR "=<title> \ttitle number"
907 "\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
908 "\n " INPUT_ANGLE_VAR "=<angle> \tangle number"
909 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
910 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
911 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
912
913 /* Input parameters */
914 intf_MsgImm( "\nInput parameters:"
915 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
916 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
917 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
918 "\n " INPUT_BCAST_ADDR_VAR "=<addr> \tbroadcast mode"
919 "\n " INPUT_CHANNEL_SERVER_VAR "=<hostname> \tchannel server"
920 "\n " INPUT_CHANNEL_PORT_VAR "=<port> \tchannel server port" );
921
922 }
923
924 /*****************************************************************************
925 * Version: print complete program version
926 *****************************************************************************
927 * Print complete program version and build number.
928 *****************************************************************************/
929 static void Version( void )
930 {
931 intf_MsgImm( VERSION_MESSAGE
932 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
933 "You may redistribute it under the terms of the GNU General Public License;\n"
934 "see the file named COPYING for details.\n"
935 "Written by the VideoLAN team at Ecole Centrale, Paris." );
936 }
937
938 /*****************************************************************************
939 * InitSignalHandler: system signal handler initialization
940 *****************************************************************************
941 * Set the signal handlers. SIGTERM is not intercepted, because we need at
942 * at least a method to kill the program when all other methods failed, and
943 * when we don't want to use SIGKILL.
944 *****************************************************************************/
945 static void InitSignalHandler( void )
946 {
947 /* Termination signals */
948 #ifndef WIN32
949 signal( SIGINT, FatalSignalHandler );
950 signal( SIGHUP, FatalSignalHandler );
951 signal( SIGQUIT, FatalSignalHandler );
952
953 /* Other signals */
954 signal( SIGALRM, SimpleSignalHandler );
955 signal( SIGPIPE, SimpleSignalHandler );
956 #endif
957 }
958
959
960 /*****************************************************************************
961 * SimpleSignalHandler: system signal handler
962 *****************************************************************************
963 * This function is called when a non fatal signal is received by the program.
964 *****************************************************************************/
965 static void SimpleSignalHandler( int i_signal )
966 {
967 /* Acknowledge the signal received */
968 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
969 }
970
971
972 /*****************************************************************************
973 * FatalSignalHandler: system signal handler
974 *****************************************************************************
975 * This function is called when a fatal signal is received by the program.
976 * It tries to end the program in a clean way.
977 *****************************************************************************/
978 static void FatalSignalHandler( int i_signal )
979 {
980 /* Once a signal has been trapped, the termination sequence will be
981 * armed and following signals will be ignored to avoid sending messages
982 * to an interface having been destroyed */
983 #ifndef WIN32
984 signal( SIGINT, SIG_IGN );
985 signal( SIGHUP, SIG_IGN );
986 signal( SIGQUIT, SIG_IGN );
987 #endif
988
989 /* Acknowledge the signal received */
990 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
991
992 /* Try to terminate everything - this is done by requesting the end of the
993 * interface thread */
994 p_main->p_intf->b_die = 1;
995 }
996
997 /*****************************************************************************
998 * InstructionSignalHandler: system signal handler
999 *****************************************************************************
1000 * This function is called when a illegal instruction signal is received by
1001 * the program.
1002 * We use this function to test OS and CPU_Capabilities
1003 *****************************************************************************/
1004 static void InstructionSignalHandler( int i_signal )
1005 {
1006 /* Once a signal has been trapped, the termination sequence will be
1007 * armed and following signals will be ignored to avoid sending messages
1008 * to an interface having been destroyed */
1009
1010 /* Acknowledge the signal received */
1011 fprintf( stderr, "warning: extended instructions unsupported, "
1012 "some optimizations will be disabled\n" );
1013 #ifdef SYS_LINUX
1014 fprintf( stderr, "upgrade to kernel 2.4.x to get rid of this warning\n" );
1015 #endif
1016
1017 i_illegal = 1;
1018
1019 #ifdef HAVE_SIGRELSE
1020 sigrelse( i_signal );
1021 #endif
1022 longjmp( env, 1 );
1023 }
1024
1025 /*****************************************************************************
1026 * CPUCapabilities: list the processors MMX support and other capabilities
1027 *****************************************************************************
1028 * This function is called to list extensions the CPU may have.
1029 *****************************************************************************/
1030 static int CPUCapabilities( void )
1031 {
1032 volatile int i_capabilities = CPU_CAPABILITY_NONE;
1033
1034 #if defined( SYS_BEOS )
1035 i_capabilities |= CPU_CAPABILITY_486
1036 | CPU_CAPABILITY_586
1037 | CPU_CAPABILITY_MMX;
1038
1039 return( i_capabilities );
1040
1041 #elif defined( SYS_DARWIN )
1042 struct host_basic_info hi;
1043 kern_return_t ret;
1044 host_name_port_t host;
1045
1046 int i_size;
1047 char *psz_name, *psz_subname;
1048
1049 /* Should 'never' fail? */
1050 host = mach_host_self();
1051
1052 i_size = sizeof( hi ) / sizeof( int );
1053 ret = host_info( host, HOST_BASIC_INFO, ( host_info_t )&hi, &i_size );
1054
1055 if( ret != KERN_SUCCESS )
1056 {
1057 fprintf( stderr, "error: couldn't get CPU information\n" );
1058 return( i_capabilities );
1059 }
1060
1061 slot_name( hi.cpu_type, hi.cpu_subtype, &psz_name, &psz_subname );
1062 /* FIXME: need better way to detect newer proccessors.
1063 * could do strncmp(a,b,5), but that's real ugly */
1064 if( strcmp(psz_name, "ppc7400") || strcmp(psz_name, "ppc7450") )
1065 {
1066 i_capabilities |= CPU_CAPABILITY_ALTIVEC;
1067 }
1068
1069 return( i_capabilities );
1070
1071 #elif defined( __i386__ )
1072 volatile unsigned int i_eax, i_ebx, i_ecx, i_edx;
1073 volatile boolean_t b_amd;
1074
1075 signal( SIGILL, InstructionSignalHandler );
1076
1077 /* test for a 486 CPU */
1078 asm volatile ( "pushfl\n\t"
1079 "popl %%eax\n\t"
1080 "movl %%eax, %%ebx\n\t"
1081 "xorl $0x200000, %%eax\n\t"
1082 "pushl %%eax\n\t"
1083 "popfl\n\t"
1084 "pushfl\n\t"
1085 "popl %%eax"
1086 : "=a" ( i_eax ),
1087 "=b" ( i_ebx )
1088 :
1089 : "cc" );
1090
1091 if( i_eax == i_ebx )
1092 {
1093 signal( SIGILL, NULL );
1094 return( i_capabilities );
1095 }
1096
1097 i_capabilities |= CPU_CAPABILITY_486;
1098
1099 /* the CPU supports the CPUID instruction - get its level */
1100 cpuid( 0x00000000 );
1101
1102 if( !i_eax )
1103 {
1104 signal( SIGILL, NULL );
1105 return( i_capabilities );
1106 }
1107
1108 /* FIXME: this isn't correct, since some 486s have cpuid */
1109 i_capabilities |= CPU_CAPABILITY_586;
1110
1111 /* borrowed from mpeg2dec */
1112 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
1113 && ( i_edx == 0x69746e65 );
1114
1115 /* test for the MMX flag */
1116 cpuid( 0x00000001 );
1117
1118 if( ! (i_edx & 0x00800000) )
1119 {
1120 signal( SIGILL, NULL );
1121 return( i_capabilities );
1122 }
1123
1124 i_capabilities |= CPU_CAPABILITY_MMX;
1125
1126 if( i_edx & 0x02000000 )
1127 {
1128 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1129
1130 /* We test if OS support the SSE instructions */
1131 i_illegal = 0;
1132 if( setjmp( env ) == 0 )
1133 {
1134 /* Test a SSE instruction */
1135 __asm__ __volatile__ ( "xorps %%xmm0,%%xmm0\n" : : );
1136 }
1137
1138 if( i_illegal == 0 )
1139 {
1140 i_capabilities |= CPU_CAPABILITY_SSE;
1141 }
1142 }
1143
1144 /* test for additional capabilities */
1145 cpuid( 0x80000000 );
1146
1147 if( i_eax < 0x80000001 )
1148 {
1149 signal( SIGILL, NULL );
1150 return( i_capabilities );
1151 }
1152
1153 /* list these additional capabilities */
1154 cpuid( 0x80000001 );
1155
1156 if( i_edx & 0x80000000 )
1157 {
1158 i_illegal = 0;
1159 if( setjmp( env ) == 0 )
1160 {
1161 /* Test a 3D Now! instruction */
1162 __asm__ __volatile__ ( "pfadd %%mm0,%%mm0\n" "femms\n" : : );
1163 }
1164
1165 if( i_illegal == 0 )
1166 {
1167 i_capabilities |= CPU_CAPABILITY_3DNOW;
1168 }
1169 }
1170
1171 if( b_amd && ( i_edx & 0x00400000 ) )
1172 {
1173 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1174 }
1175
1176 signal( SIGILL, NULL );
1177 return( i_capabilities );
1178
1179 #else
1180 /* default behaviour */
1181 return( i_capabilities );
1182
1183 #endif
1184 }
1185
1186 /*****************************************************************************
1187 * RedirectSTDOUT: redirect stdout and stderr to a file
1188 *****************************************************************************
1189 * This function will redirect stdout and stderr to a file if the user has
1190 * specified so.
1191 *****************************************************************************/
1192 static int RedirectSTDOUT( void )
1193 {
1194 int i_stdout_filedesc;
1195 char *psz_stdout_filename;
1196
1197 psz_stdout_filename = main_GetPszVariable( INTF_STDOUT_VAR,
1198 INTF_STDOUT_DEFAULT );
1199 if( strcmp( "", psz_stdout_filename ) != 0 )
1200 {
1201 ShowConsole();
1202 i_stdout_filedesc = open( psz_stdout_filename,
1203 O_CREAT | O_TRUNC | O_RDWR,
1204 S_IREAD | S_IWRITE );
1205
1206 if( dup2( i_stdout_filedesc, fileno(stdout) ) == -1 )
1207 {
1208 intf_ErrMsg( "warning: unable to redirect stdout" );
1209 }
1210
1211 if( dup2( i_stdout_filedesc, fileno(stderr) ) == -1 )
1212 {
1213 intf_ErrMsg( "warning: unable to redirect stderr" );
1214 }
1215
1216 close( i_stdout_filedesc );
1217 }
1218 else
1219 {
1220 /* No stdout redirection has been asked so open a console */
1221 if( p_main->i_warning_level )
1222 {
1223 ShowConsole();
1224 }
1225
1226 }
1227
1228 return 0;
1229 }
1230
1231 /*****************************************************************************
1232 * ShowConsole: On Win32, create an output console for debug messages
1233 *****************************************************************************
1234 * This function is usefull only on Win32.
1235 *****************************************************************************/
1236 static void ShowConsole( void )
1237 {
1238 #ifdef WIN32 /* */
1239 AllocConsole();
1240 freopen( "CONOUT$", "w", stdout );
1241 freopen( "CONOUT$", "w", stderr );
1242 freopen( "CONIN$", "r", stdin );
1243 #endif
1244 return;
1245 }
1246
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