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/*****************************************************************************
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 * main.c: main vlc source
 * Includes the main() function for vlc. Parses command line, start interface
 * and spawn threads.
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 *****************************************************************************
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 * Copyright (C) 1998-2001 VideoLAN
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 * $Id: main.c,v 1.176 2002/04/07 23:08:44 massiot Exp $
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 *
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 * Authors: Vincent Seguin <seguin@via.ecp.fr>
 *          Samuel Hocevar <sam@zoy.org>
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 *          Gildas Bazin <gbazin@netcourrier.com>
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 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
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 * 
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 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
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 *****************************************************************************/
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/*****************************************************************************
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 * Preamble
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 *****************************************************************************/
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#include <signal.h>                               /* SIGHUP, SIGINT, SIGKILL */
#include <stdio.h>                                              /* sprintf() */
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#include <setjmp.h>                                       /* longjmp, setjmp */
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#include <videolan/vlc.h>

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#ifdef HAVE_GETOPT_LONG
#   ifdef HAVE_GETOPT_H
#       include <getopt.h>                                       /* getopt() */
#   endif
#else
#   include "GNUgetopt/getopt.h"
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#endif

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#ifdef SYS_DARWIN
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#   include <mach/mach.h>                               /* Altivec detection */
#   include <mach/mach_error.h>       /* some day the header files||compiler *
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                                                       will define it for us */
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#   include <mach/bootstrap.h>
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#endif
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#ifndef WIN32
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#   include <netinet/in.h>                            /* BSD: struct in_addr */
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#endif
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#ifdef HAVE_UNISTD_H
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#   include <unistd.h>
#elif defined( _MSC_VER ) && defined( _WIN32 )
#   include <io.h>
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#endif

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#ifdef HAVE_LOCALE_H
#    include <locale.h>
#endif

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#include <errno.h>                                                 /* ENOMEM */
#include <stdlib.h>                                  /* getenv(), strtol(),  */
#include <string.h>                                            /* strerror() */
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#include "netutils.h"                                 /* network_ChannelJoin */
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#include "stream_control.h"
#include "input_ext-intf.h"
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#include "intf_playlist.h"
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#include "interface.h"
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#include "audio_output.h"
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#include "video.h"
#include "video_output.h"

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#include "debug.h"
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/*****************************************************************************
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 * Configuration options for the main program. Each plugin will also separatly
 * define its own configuration options.
 * Look into configuration.h if you need to know more about the following
 * macros.
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 *
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 *****************************************************************************/
#define BUILTIN
#define MODULE_NAME main
#include "modules_inner.h"                        /* for configuration stuff */

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#define INTF_TEXT "interface method"
#define INTF_LONGTEXT "This option allows you to select the interface used by"\
                      " vlc.\nNote that the default behaviour is to" \
                      " automatically select the best method available"

#define WARNING_TEXT "warning level (or use -v, -vv, etc...)"
#define WARNING_LONGTEXT "Increasing the warning level will allow you to see" \
                         " more debug messages and can sometimes help you to" \
                         " troubleshoot a problem"

#define STATS_TEXT "output statistics"
#define STATS_LONGTEXT "Enabling the stats mode will flood your log console" \
                       " with various statistics messages"

#define INTF_PATH_TEXT "interface default search path"
#define INTF_PATH_LONGTEXT "This option allows you to set the default path" \
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                           " that the interface will open when looking for a" \
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                           " file"

#define AOUT_TEXT "audio output method"
#define AOUT_LONGTEXT "This option allows you to select the audio" \
                      " audio output method used by vlc.\nNote that the" \
                      " default behaviour is to automatically select the best"\
                      " method available"

#define NOAUDIO_TEXT "disable audio"
#define NOAUDIO_LONGTEXT "This will completely disable the audio output. The" \
                         " audio decoding stage shouldn't even be done, so it"\
                         " can allow you to save some processing power"

#define MONO_TEXT "mono audio"
#define MONO_LONGTEXT "This will force a mono audio output"

#define VOLUME_TEXT "audio output volume"
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#define VOLUME_LONGTEXT "You can set the default audio output volume here," \
                        " in a range from 0 to 1024"

#define FORMAT_TEXT "audio output format"
#define FORMAT_LONGTEXT "You can force the audio output format here.\n" \
                        "0 -> 16 bits signed native endian (default)\n" \
                        "1 ->  8 bits unsigned\n"                       \
                        "2 -> 16 bits signed little endian\n"           \
                        "3 -> 16 bits signed big endian\n"              \
                        "4 ->  8 bits signed\n"                         \
                        "5 -> 16 bits unsigned little endian\n"         \
                        "6 -> 16 bits unsigned big endian\n"            \
                        "7 -> mpeg2 audio (unsupported)\n"              \
                        "8 -> ac3 pass-through"
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#define RATE_TEXT "audio output frequency (Hz)"
#define RATE_LONGTEXT "You can force the audio output frequency here.\n"    \
                      "Common values are 48000, 44100, 32000, 22050,"       \
                      " 16000, 11025, 8000"
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#define DESYNC_TEXT "Compensate desynchronization of audio (in ms)"
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#define DESYNC_LONGTEXT "This option allows you to delay the audio output."  \
                        " This can be handy if you notice a lag between the" \
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                        " video and the audio"

#define VOUT_TEXT "video output method"
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#define VOUT_LONGTEXT "This option allows you to select the video output"     \
                      " method used by vlc.\nNote that the default behaviour" \
                      " is to automatically select the best method available"
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#define NOVIDEO_TEXT "disable video"
#define NOVIDEO_LONGTEXT "This will completely disable the video output. The" \
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                         " video decoding stage shouldn't even be done, so"   \
                         " it can allow you to save some processing power"

#define DISPLAY_TEXT "display identifier"
#define DISPLAY_LONGTEXT NULL
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#define WIDTH_TEXT "video width"
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#define WIDTH_LONGTEXT "You can enforce the video width here.\nNote"  \
                       " that by default vlc will adapt to the video" \
                       " characteristics"
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#define HEIGHT_TEXT "video height"
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#define HEIGHT_LONGTEXT "You can enforce the video height here.\nNote"  \
                        " that by default vlc will adapt to the video " \
                        " characteristics"
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#define GRAYSCALE_TEXT "grayscale video output"
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#define GRAYSCALE_LONGTEXT "Using this option, vlc will not decode the color "\
                           "information from the video (this can also allow " \
                           "you to save some processing power)"
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#define FULLSCREEN_TEXT "fullscreen video output"
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#define FULLSCREEN_LONGTEXT "If this option is enabled, vlc will always " \
                            "start a video in fullscreen mode"
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#define NOOVERLAY_TEXT "disable hardware acceleration for the video output"
#define NOOVERLAY_LONGTEXT "By default vlc will try to take advantage of the "\
                           "overlay capabilities of you graphics card.\n"
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#define SPUMARGIN_TEXT "force SPU position"
#define SPUMARGIN_LONGTEXT NULL

#define FILTER_TEXT "video filter module"
#define FILTER_LONGTEXT NULL

#define SERVER_PORT_TEXT "server port"
#define SERVER_PORT_LONGTEXT NULL

#define NETCHANNEL_TEXT "enable network channel mode"
#define NETCHANNEL_LONGTEXT NULL

#define CHAN_SERV_TEXT "channel server address"
#define CHAN_SERV_LONGTEXT NULL

#define CHAN_PORT_TEXT "channel server port"
#define CHAN_PORT_LONGTEXT NULL

#define IFACE_TEXT "network interface"
#define IFACE_LONGTEXT NULL

#define INPUT_AUDIO_TEXT "choose audio"
#define INPUT_AUDIO_LONGTEXT NULL

#define INPUT_CHAN_TEXT "choose channel"
#define INPUT_CHAN_LONGTEXT NULL

#define INPUT_SUBT_TEXT "choose subtitles"
#define INPUT_SUBT_LONGTEXT NULL

#define DVD_DEV_TEXT "DVD device"
#define DVD_DEV_LONGTEXT NULL

#define VCD_DEV_TEXT "VCD device"
#define VCD_DEV_LONGTEXT NULL

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#define SAT_FREQ_TEXT "Satellite transponder frequency"
#define SAT_FREQ_LONGTEXT NULL

#define SAT_POL_TEXT "Satellite transponder polarization"
#define SAT_POL_LONGTEXT NULL

#define SAT_SRATE_TEXT "Satellite transponder symbol rate"
#define SAT_SRATE_LONGTEXT NULL
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#define IPV6_TEXT "force IPv6"
#define IPV6_LONGTEXT NULL

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#define IPV4_TEXT "force IPv4"
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#define IPV4_LONGTEXT NULL

#define ADEC_MPEG_TEXT "choose MPEG audio decoder"
#define ADEC_MPEG_LONGTEXT NULL

#define ADEC_AC3_TEXT "choose AC3 audio decoder"
#define ADEC_AC3_LONGTEXT NULL

#define VDEC_SMP_TEXT "use additional processors"
#define VDEC_SMP_LONGTEXT NULL

#define VPAR_SYNCHRO_TEXT "force synchro algorithm {I|I+|IP|IP+|IPB}"
#define VPAR_SYNCHRO_LONGTEXT NULL

#define NOMMX_TEXT "disable CPU's MMX support"
#define NOMMX_LONGTEXT NULL

#define NO3DN_TEXT "disable CPU's 3D Now! support"
#define NO3DN_LONGTEXT NULL

#define NOMMXEXT_TEXT "disable CPU's MMX EXT support"
#define NOMMXEXT_LONGTEXT NULL

#define NOSSE_TEXT "disable CPU's SSE support"
#define NOSSE_LONGTEXT NULL

#define NOALTIVEC_TEXT "disable CPU's AltiVec support"
#define NOALTIVEC_LONGTEXT NULL

#define PLAYLIST_LAUNCH_TEXT "launch playlist on startup"
#define PLAYLIST_LAUNCH_LONGTEXT NULL

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#define PLAYLIST_ENQUEUE_TEXT "enqueue playlist as default"
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#define PLAYLIST_ENQUEUE_LONGTEXT NULL

#define PLAYLIST_LOOP_TEXT "loop playlist on end"
#define PLAYLIST_LOOP_LONGTEXT NULL

#define MEMCPY_TEXT "memory copy method"
#define MEMCPY_LONGTEXT NULL

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#define FAST_PTHREAD_TEXT "fast pthread on NT/2K/XP (developpers only)"
#define FAST_PTHREAD_LONGTEXT "On Windows NT/2K/XP we use a slow but correct "\
                              "pthread implementation, you can also use this "\
                              "faster implementation but you might "\
                              "experience problems with it"

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/* Quick usage guide
MODULE_CONFIG_START
MODULE_CONFIG_STOP
ADD_CATEGORY_HINT( text, longtext )
ADD_SUBCATEGORY_HINT( text, longtext )
ADD_STRING( option_name, value, p_callback, text, longtext )
ADD_FILE( option_name, psz_value, p_callback, text, longtext )
ADD_PLUGIN( option_name, psz_value, i_capability, p_callback, text, longtext )
ADD_INTEGER( option_name, i_value, p_callback, text, longtext )
ADD_BOOL( option_name, p_callback, text, longtext )
*/

MODULE_CONFIG_START

/* Interface options */
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ADD_CATEGORY_HINT( "Interface", NULL)
ADD_PLUGIN  ( "intf", MODULE_CAPABILITY_INTF, NULL, NULL, INTF_TEXT, INTF_LONGTEXT )
ADD_INTEGER ( "warning", 0, NULL, WARNING_TEXT, WARNING_LONGTEXT )
ADD_BOOL    ( "stats", NULL, STATS_TEXT, STATS_LONGTEXT )
ADD_STRING  ( "search_path", NULL, NULL, INTF_PATH_TEXT, INTF_PATH_LONGTEXT )

/* Audio options */
ADD_CATEGORY_HINT( "Audio", NULL)
ADD_PLUGIN  ( "aout", MODULE_CAPABILITY_AOUT, NULL, NULL, AOUT_TEXT, AOUT_LONGTEXT )
ADD_BOOL    ( "noaudio", NULL, NOAUDIO_TEXT, NOAUDIO_LONGTEXT )
ADD_BOOL    ( "mono", NULL, MONO_TEXT, MONO_LONGTEXT )
ADD_INTEGER ( "volume", VOLUME_DEFAULT, NULL, VOLUME_TEXT, VOLUME_LONGTEXT )
ADD_INTEGER ( "rate", 44100, NULL, RATE_TEXT, RATE_LONGTEXT )
ADD_INTEGER ( "desync", 0, NULL, DESYNC_TEXT, DESYNC_LONGTEXT )
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ADD_INTEGER ( "aout_format", 0, NULL, FORMAT_TEXT,
              FORMAT_LONGTEXT )
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/* Video options */
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ADD_CATEGORY_HINT( "Video", NULL )
ADD_PLUGIN  ( "vout", MODULE_CAPABILITY_VOUT, NULL, NULL, VOUT_TEXT, VOUT_LONGTEXT )
ADD_BOOL    ( "novideo", NULL, NOVIDEO_TEXT, NOVIDEO_LONGTEXT )
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ADD_INTEGER ( "width", -1, NULL, WIDTH_TEXT, WIDTH_LONGTEXT )
ADD_INTEGER ( "height", -1, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT )
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ADD_BOOL    ( "grayscale", NULL, GRAYSCALE_TEXT, GRAYSCALE_LONGTEXT )
ADD_BOOL    ( "fullscreen", NULL, FULLSCREEN_TEXT, FULLSCREEN_LONGTEXT )
ADD_BOOL    ( "nooverlay", NULL, NOOVERLAY_TEXT, NOOVERLAY_LONGTEXT )
ADD_INTEGER ( "spumargin", -1, NULL, SPUMARGIN_TEXT, SPUMARGIN_LONGTEXT )
ADD_PLUGIN  ( "filter", MODULE_CAPABILITY_VOUT, NULL, NULL, FILTER_TEXT, FILTER_LONGTEXT )
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/* Input options */
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ADD_CATEGORY_HINT( "Input", NULL )
ADD_INTEGER ( "server_port", 1234, NULL, SERVER_PORT_TEXT, SERVER_PORT_LONGTEXT )
ADD_BOOL    ( "network_channel", NULL, NETCHANNEL_TEXT, NETCHANNEL_LONGTEXT )
ADD_STRING  ( "channel_server", "localhost", NULL, CHAN_SERV_TEXT, CHAN_SERV_LONGTEXT )
ADD_INTEGER ( "channel_port", 6010, NULL, CHAN_PORT_TEXT, CHAN_PORT_LONGTEXT )
ADD_STRING  ( "iface", "eth0", NULL, IFACE_TEXT, IFACE_LONGTEXT )

ADD_INTEGER ( "input_audio", -1, NULL, INPUT_AUDIO_TEXT, INPUT_AUDIO_LONGTEXT )
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ADD_INTEGER ( "input_channel", -1, NULL, INPUT_CHAN_TEXT, INPUT_CHAN_LONGTEXT )
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ADD_INTEGER ( "input_subtitle", -1, NULL, INPUT_SUBT_TEXT, INPUT_SUBT_LONGTEXT )

ADD_STRING  ( "dvd_device", "/dev/dvd", NULL, DVD_DEV_TEXT, DVD_DEV_LONGTEXT )
ADD_STRING  ( "vcd_device", "/dev/cdrom", NULL, VCD_DEV_TEXT, VCD_DEV_LONGTEXT )
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#ifdef HAVE_SATELLITE
ADD_INTEGER ( "sat_frequency", 12553, NULL, SAT_FREQ_TEXT, SAT_FREQ_LONGTEXT )
ADD_INTEGER ( "sat_polarization", 0, NULL, SAT_POL_TEXT, SAT_POL_LONGTEXT )
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ADD_INTEGER ( "sat_symbol_rate", 27500, NULL, SAT_SRATE_TEXT,
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            SAT_SRATE_LONGTEXT )
#endif

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ADD_BOOL    ( "ipv6", NULL, IPV6_TEXT, IPV6_LONGTEXT )
ADD_BOOL    ( "ipv4", NULL, IPV4_TEXT, IPV4_LONGTEXT )
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/* Decoder options */
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ADD_CATEGORY_HINT( "Decoders", NULL )
ADD_PLUGIN  ( "mpeg_adec", MODULE_CAPABILITY_DECODER, NULL, NULL, ADEC_MPEG_TEXT, ADEC_MPEG_LONGTEXT )
ADD_PLUGIN  ( "ac3_adec", MODULE_CAPABILITY_DECODER, NULL, NULL, ADEC_AC3_TEXT, ADEC_AC3_LONGTEXT )
ADD_INTEGER ( "vdec_smp", 0, NULL, VDEC_SMP_TEXT, VDEC_SMP_LONGTEXT )
ADD_STRING  ( "vpar_synchro", NULL, NULL, VPAR_SYNCHRO_TEXT, VPAR_SYNCHRO_LONGTEXT )
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/* CPU options */
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ADD_CATEGORY_HINT( "CPU", NULL )
ADD_BOOL    ( "nommx", NULL, NOMMX_TEXT, NOMMX_LONGTEXT )
ADD_BOOL    ( "no3dn", NULL, NO3DN_TEXT, NO3DN_LONGTEXT )
ADD_BOOL    ( "nommxext", NULL, NOMMXEXT_TEXT, NOMMXEXT_LONGTEXT )
ADD_BOOL    ( "nosse", NULL, NOSSE_TEXT, NOSSE_LONGTEXT )
ADD_BOOL    ( "noaltivec", NULL, NOALTIVEC_TEXT, NOALTIVEC_LONGTEXT )
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/* Playlist options */
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ADD_CATEGORY_HINT( "Playlist", NULL )
ADD_BOOL    ( "playlist_launch", NULL, PLAYLIST_LAUNCH_TEXT, PLAYLIST_LAUNCH_LONGTEXT )
ADD_BOOL    ( "playlist_enqueue", NULL, PLAYLIST_ENQUEUE_TEXT, PLAYLIST_ENQUEUE_LONGTEXT )
ADD_BOOL    ( "playlist_loop", NULL, PLAYLIST_LOOP_TEXT, PLAYLIST_LOOP_LONGTEXT )
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/* Misc options */
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ADD_CATEGORY_HINT( "Miscellaneous", NULL )
ADD_PLUGIN  ( "memcpy", MODULE_CAPABILITY_MEMCPY, NULL, NULL, MEMCPY_TEXT, MEMCPY_LONGTEXT )
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#if defined(WIN32)
ADD_BOOL    ( "fast_pthread", NULL, FAST_PTHREAD_TEXT, FAST_PTHREAD_LONGTEXT )
#endif

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MODULE_CONFIG_STOP

MODULE_INIT_START
    SET_DESCRIPTION( "Main program" )
    ADD_CAPABILITY( MAIN, 100/*whatever*/ )
MODULE_INIT_STOP

MODULE_ACTIVATE_START
MODULE_ACTIVATE_STOP

MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
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/* Hack for help options */
static module_t help_module;
static module_config_t p_help_config[] = {
    { MODULE_CONFIG_ITEM_BOOL, "help", "print help (or use -h)",
      NULL, NULL, 0, NULL, NULL, 0 },
    { MODULE_CONFIG_ITEM_BOOL, "longhelp", "print detailed help (or use -H)",
      NULL, NULL, 0, NULL, NULL, 0 },
    { MODULE_CONFIG_ITEM_BOOL, "list", "print a list of available plugins "
      "(or use -l)", NULL, NULL, 0, NULL, NULL, 0 },
    { MODULE_CONFIG_ITEM_STRING, "plugin", "print help on plugin (or use -p)",
      NULL, NULL, 0, NULL, &help_module.config_lock, 0 },
    { MODULE_CONFIG_ITEM_BOOL, "version", "print version information",
      NULL, NULL, 0, NULL, NULL, 0 },
    { MODULE_CONFIG_HINT_END, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 } };


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/*****************************************************************************
 * End configuration.
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 *****************************************************************************/
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/*****************************************************************************
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 * Global variables - these are the only ones, see main.h and modules.h
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 *****************************************************************************/
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main_t        *p_main;
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p_main_sys_t  p_main_sys;
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module_bank_t *p_module_bank;
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input_bank_t  *p_input_bank;
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aout_bank_t   *p_aout_bank;
vout_bank_t   *p_vout_bank;
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/*****************************************************************************
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 * Local prototypes
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 *****************************************************************************/
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static int  GetFilenames                ( int i_argc, char *ppsz_argv[] );
static void Usage                       ( const char *psz_module_name );
static void ListModules                 ( void );
static void Version                     ( void );

static void InitSignalHandler           ( void );
static void SimpleSignalHandler         ( int i_signal );
static void FatalSignalHandler          ( int i_signal );
static void IllegalSignalHandler        ( int i_signal );
static u32  CPUCapabilities             ( void );

#ifdef WIN32
static void ShowConsole                 ( void );
#endif
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static jmp_buf env;
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static int     i_illegal;
static char   *psz_capability;
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/*****************************************************************************
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 * main: parse command line, start interface and spawn threads
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 *****************************************************************************
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 * Steps during program execution are:
 *      -configuration parsing and messages interface initialization
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 *      -opening of audio output device and some global modules
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 *      -execution of interface, which exit on error or on user request
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 *      -closing of audio output device and some global modules
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 * On error, the spawned threads are canceled, and the open devices closed.
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 *****************************************************************************/
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int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
{
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    main_t        main_data;                /* root of all data - see main.h */
    module_bank_t module_bank;
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    input_bank_t  input_bank;
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    aout_bank_t   aout_bank;
    vout_bank_t   vout_bank;
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    char *psz_plugin;
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    char *p_tmp;
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    p_main        = &main_data;               /* set up the global variables */
    p_module_bank = &module_bank;
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    p_input_bank  = &input_bank;
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    p_aout_bank   = &aout_bank;
    p_vout_bank   = &vout_bank;
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    p_main->i_warning_level = 0;

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#if defined( ENABLE_NLS ) && defined ( HAVE_GETTEXT )
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    /*
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     * Support for getext
     */
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#if defined( HAVE_LOCALE_H ) && defined( HAVE_LC_MESSAGES )
    if( !setlocale( LC_MESSAGES, "" ) )
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    {
        fprintf( stderr, "warning: unsupported locale.\n" );
    }
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#endif
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    if( !bindtextdomain( PACKAGE, LOCALEDIR ) )
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    {
        fprintf( stderr, "warning: no domain %s in directory %s\n",
                 PACKAGE, LOCALEDIR );
    }

    textdomain( PACKAGE );
#endif
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    /*
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     * Initialize threads system
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     */
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    vlc_threads_init();
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    /*
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     * Test if our code is likely to run on this CPU
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     */
    p_main->i_cpu_capabilities = CPUCapabilities();
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    /*
     * System specific initialization code
     */
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#if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
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    system_Init( &i_argc, ppsz_argv, ppsz_env );
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#elif defined( SYS_LINUX )
#   ifdef DEBUG
    /* Activate malloc checking routines to detect heap corruptions. */
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    putenv( "MALLOC_CHECK_=2" );
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    putenv( "GNOME_DISABLE_CRASH_DIALOG=1" );
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#   endif
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#endif
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    /*
     * Initialize messages interface
     */
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    intf_MsgCreate();
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    intf_Msg( COPYRIGHT_MESSAGE "\n" );
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    /* Get the executable name (similar to the basename command) */
    p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
    while( *p_tmp )
    {
        if( *p_tmp == '/' ) p_main->psz_arg0 = ++p_tmp;
        else ++p_tmp;
    }

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    /*
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     * Initialize the module bank and and load the configuration of the main
     * module. We need to do this at this stage to be able to display a short
     * help if required by the user. (short help == main module options)
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     */
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    module_InitBank();
    module_LoadMain();

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    /* Hack: insert the help module here */
    help_module.psz_name = "help";
    help_module.i_config_lines = sizeof(p_help_config) /
                                     sizeof(module_config_t);
    help_module.i_config_items = help_module.i_config_lines - 1;
    vlc_mutex_init( &help_module.config_lock );
    help_module.p_config = p_help_config;
    help_module.next = p_module_bank->first;
    p_module_bank->first = &help_module;
    /* end hack */

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    if( config_LoadCmdLine( &i_argc, ppsz_argv, 1 ) )
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    {
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        intf_MsgDestroy();
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        return( errno );
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    }
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    /* Check for short help option */
    if( config_GetIntVariable( "help" ) )
    {
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        intf_Msg( "Usage: %s [options] [parameters] [file]...\n",
                  p_main->psz_arg0 );

        Usage( "help" );
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        Usage( "main" );
        return( -1 );
    }

    /* Check for version option */
    if( config_GetIntVariable( "version" ) )
    {
        Version();
        return( -1 );
    }

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    /* Hack: remove the help module here */
    p_module_bank->first = help_module.next;
    /* end hack */

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    /*
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     * Load the builtins and plugins into the module_bank.
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     * We have to do it before config_Load*() because this also gets the
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     * list of configuration options exported by each plugin and loads their
     * default values.
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     */
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    module_LoadBuiltins();
    module_LoadPlugins();
    intf_WarnMsg( 2, "module: module bank initialized, found %i modules",
                  p_module_bank->i_count );

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    /* Hack: insert the help module here */
    help_module.next = p_module_bank->first;
    p_module_bank->first = &help_module;
    /* end hack */

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    /* Check for help on plugins */
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    if( (p_tmp = config_GetPszVariable( "plugin" )) )
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    {
        Usage( p_tmp );
        free( p_tmp );
        return( -1 );
    }

    /* Check for long help option */
    if( config_GetIntVariable( "longhelp" ) )
    {
        Usage( NULL );
        return( -1 );
    }

    /* Check for plugin list option */
    if( config_GetIntVariable( "list" ) )
    {
        ListModules();
        return( -1 );
    }

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    /* Hack: remove the help module here */
    p_module_bank->first = help_module.next;
    /* end hack */


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    /*
     * Override default configuration with config file settings
     */
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    vlc_mutex_init( &p_main->config_lock );
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    p_main->psz_homedir = config_GetHomeDir();
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    config_LoadConfigFile( NULL );
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    /*
     * Override configuration with command line settings
     */
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    if( config_LoadCmdLine( &i_argc, ppsz_argv, 0 ) )
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    {
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#ifdef WIN32
        ShowConsole();
        /* Pause the console because it's destroyed when we exit */
        intf_Msg( "The command line options couldn't be loaded, check that "
                  "they are valid.\nPress the RETURN key to continue..." );
        getchar();
#endif
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        intf_MsgDestroy();
        return( errno );
    }

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    /*
     * System specific configuration
     */
#if defined( WIN32 )
    system_Configure();
#endif

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    /* p_main inititalization. FIXME ? */
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    p_main->i_desync = (mtime_t)config_GetIntVariable( "desync" )
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      * (mtime_t)1000;
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    p_main->b_stats = config_GetIntVariable( "stats" );
    p_main->b_audio = !config_GetIntVariable( "noaudio" );
    p_main->b_stereo= !config_GetIntVariable( "mono" );
    p_main->b_video = !config_GetIntVariable( "novideo" );
    if( config_GetIntVariable( "nommx" ) )
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        p_main->i_cpu_capabilities &= ~CPU_CAPABILITY_MMX;
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    if( config_GetIntVariable( "no3dn" ) )
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        p_main->i_cpu_capabilities &= ~CPU_CAPABILITY_3DNOW;
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    if( config_GetIntVariable( "nommxext" ) )
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        p_main->i_cpu_capabilities &= ~CPU_CAPABILITY_MMXEXT;
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    if( config_GetIntVariable( "nosse" ) )
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        p_main->i_cpu_capabilities &= ~CPU_CAPABILITY_SSE;
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    if( config_GetIntVariable( "noaltivec" ) )
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        p_main->i_cpu_capabilities &= ~CPU_CAPABILITY_ALTIVEC;


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    if( p_main->b_stats )
    {
        char          p_capabilities[200];
        p_capabilities[0] = '\0';

#define PRINT_CAPABILITY( capability, string )                              \
        if( p_main->i_cpu_capabilities & capability )                       \
        {                                                                   \
            strncat( p_capabilities, string " ",                            \
                     sizeof(p_capabilities) - strlen(p_capabilities) );     \
            p_capabilities[sizeof(p_capabilities) - 1] = '\0';              \
        }

        PRINT_CAPABILITY( CPU_CAPABILITY_486, "486" );
        PRINT_CAPABILITY( CPU_CAPABILITY_586, "586" );
        PRINT_CAPABILITY( CPU_CAPABILITY_PPRO, "Pentium Pro" );
        PRINT_CAPABILITY( CPU_CAPABILITY_MMX, "MMX" );
        PRINT_CAPABILITY( CPU_CAPABILITY_3DNOW, "3DNow!" );
        PRINT_CAPABILITY( CPU_CAPABILITY_MMXEXT, "MMXEXT" );
        PRINT_CAPABILITY( CPU_CAPABILITY_SSE, "SSE" );
        PRINT_CAPABILITY( CPU_CAPABILITY_ALTIVEC, "Altivec" );
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        PRINT_CAPABILITY( CPU_CAPABILITY_FPU, "FPU" );
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        intf_StatMsg( "info: CPU has capabilities : %s", p_capabilities );
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    }

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    /*
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     * Initialize playlist and get commandline files
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     */
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    p_main->p_playlist = intf_PlaylistCreate();
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    if( !p_main->p_playlist )
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    {
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        intf_ErrMsg( "playlist error: playlist initialization failed" );
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        intf_MsgDestroy();
        return( errno );
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    }
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    intf_PlaylistInit( p_main->p_playlist );
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    /*
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     * Get input filenames given as commandline arguments
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     */
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    GetFilenames( i_argc, ppsz_argv );
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    /*
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     * Initialize input, aout and vout banks
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     */
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    input_InitBank();
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    aout_InitBank();
    vout_InitBank();
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    /*
     * Choose the best memcpy module
     */
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    psz_plugin = config_GetPszVariable( "memcpy" );
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    p_main->p_memcpy_module = module_Need( MODULE_CAPABILITY_MEMCPY,
                                           psz_plugin, NULL );
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    if( psz_plugin ) free( psz_plugin );
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    if( p_main->p_memcpy_module == NULL )
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    {
        intf_ErrMsg( "intf error: no suitable memcpy module, "
                     "using libc default" );
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        p_main->pf_memcpy = memcpy;
    }
    else
    {
        p_main->pf_memcpy = p_main->p_memcpy_module->p_functions
                                  ->memcpy.functions.memcpy.pf_memcpy;
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    }
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    /*
     * Initialize shared resources and libraries
     */
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    if( config_GetIntVariable( "network_channel" ) &&
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        network_ChannelCreate() )
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    {
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        /* On error during Channels initialization, switch off channels */
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        intf_ErrMsg( "intf error: channels initialization failed, "
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                                 "deactivating channels" );
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        config_PutIntVariable( "network_channel", 0 );
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    }
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    /*
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     * Try to run the interface
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     */
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    p_main->p_intf = intf_Create();
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    if( p_main->p_intf == NULL )
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    {
        intf_ErrMsg( "intf error: interface initialization failed" );
    }
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    else
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    {
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        /*
         * Set signal handling policy for all threads
         */
        InitSignalHandler();

        /*
         * This is the main loop
         */
        p_main->p_intf->pf_run( p_main->p_intf );

        /*
         * Finished, destroy the interface
         */
        intf_Destroy( p_main->p_intf );

        /*
         * Go back into channel 0 which is the network
         */
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        if( config_GetIntVariable( "network_channel" ) && p_main->p_channel )
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        {
            network_ChannelJoin( COMMON_CHANNEL );
        }
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    }
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    /*
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     * Free input, aout and vout banks
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     */
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    input_EndBank();
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    vout_EndBank();
    aout_EndBank();

    /*
     * Free playlist
     */
    intf_PlaylistDestroy( p_main->p_playlist );

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    /*
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     * Free memcpy module if it was allocated
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     */
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    if( p_main->p_memcpy_module != NULL )
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    {
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        module_Unneed( p_main->p_memcpy_module );
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    }
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    /*
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     * Free module bank
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     */
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    module_EndBank();
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    /*
     * System specific cleaning code
     */
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#if defined( SYS_BEOS ) || defined( SYS_DARWIN ) || defined( WIN32 )
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    system_End();
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#endif

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    /*
     * Terminate messages interface and program
     */
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    intf_WarnMsg( 1, "intf: program terminated" );
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    intf_MsgDestroy();
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    /*
     * Stop threads system
     */
    vlc_threads_end( );
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    return 0;
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}

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/* following functions are local */
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/*****************************************************************************
 * GetFilenames: parse command line options which are not flags
 *****************************************************************************
 * Parse command line for input files.
 *****************************************************************************/
static int GetFilenames( int i_argc, char *ppsz_argv[] )
{
    int i_opt;
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    /* We assume that the remaining parameters are filenames */
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    for( i_opt = optind; i_opt < i_argc; i_opt++ )
    {
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        intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
                          ppsz_argv[ i_opt ] );
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    }
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    return( 0 );
}

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/*****************************************************************************
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 * Usage: print program usage
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 *****************************************************************************
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 * Print a short inline help. Message interface is initialized at this stage.
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 *****************************************************************************/
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static void Usage( const char *psz_module_name )
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{
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    int i;
    module_t *p_module;
    char psz_spaces[30];

    memset( psz_spaces, 32, 30 );

#ifdef WIN32
    ShowConsole();
#endif

    /* Enumerate the config of each module */
    for( p_module = p_module_bank->first ;
         p_module != NULL ;
         p_module = p_module->next )
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    {
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        if( psz_module_name && strcmp( psz_module_name, p_module->psz_name ) )
            continue;

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        /* ignore plugins without config options */
        if( !p_module->i_config_items ) continue;

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        /* print module name */
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        intf_Msg( "%s options:\n", p_module->psz_name );
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        for( i = 0; i < p_module->i_config_lines; i++ )
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        {
            int j;

            switch( p_module->p_config[i].i_type )
            {
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            case MODULE_CONFIG_HINT_CATEGORY:
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                intf_Msg( " %s", p_module->p_config[i].psz_text );
                break;

            case MODULE_CONFIG_ITEM_STRING:
            case MODULE_CONFIG_ITEM_FILE:
            case MODULE_CONFIG_ITEM_PLUGIN:
                /* Nasty hack, but right now I'm too tired to think about
                 * a nice solution */
                j = 25 - strlen( p_module->p_config[i].psz_name )
                    - strlen(" <string>") - 1;
                if( j < 0 ) j = 0; psz_spaces[j] = 0;

                intf_Msg( "  --%s <string>%s %s",
                          p_module->p_config[i].psz_name, psz_spaces,
                          p_module->p_config[i].psz_text );
                psz_spaces[j] = 32;
                break;
            case MODULE_CONFIG_ITEM_INTEGER:
                /* Nasty hack, but right now I'm too tired to think about
                 * a nice solution */
                j = 25 - strlen( p_module->p_config[i].psz_name )
                    - strlen(" <integer>") - 1;
                if( j < 0 ) j = 0; psz_spaces[j] = 0;

                intf_Msg( "  --%s <integer>%s %s",
                          p_module->p_config[i].psz_name, psz_spaces,
                          p_module->p_config[i].psz_text );
                psz_spaces[j] = 32;
                break;
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            case MODULE_CONFIG_ITEM_BOOL:
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                /* Nasty hack, but right now I'm too tired to think about
                 * a nice solution */
                j = 25 - strlen( p_module->p_config[i].psz_name ) - 1;
                if( j < 0 ) j = 0; psz_spaces[j] = 0;

                intf_Msg( "  --%s%s %s",
                          p_module->p_config[i].psz_name, psz_spaces,
                          p_module->p_config[i].psz_text );
                psz_spaces[j] = 32;
                break;
            }
        }

        /* Yet another nasty hack.
         * Maybe we could use MODULE_CONFIG_ITEM_END to display tail messages
         * for each module?? */
        if( !strcmp( "main", p_module->psz_name ) )
            intf_Msg( "\nPlaylist items:"
                "\n  *.mpg, *.vob                   \tPlain MPEG-1/2 files"
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                "\n  [dvd:][device][@raw_device][@[title][,[chapter][,angle]]]"
                "\n                                 \tDVD device"
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                "\n  [vcd:][device][@[title][,[chapter]]"
                "\n                                 \tVCD device"
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                "\n  udpstream:[@[<bind address>][:<bind port>]]"
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                "\n                                 \tUDP stream sent by VLS"
                "\n  vlc:loop                       \tLoop execution of the "
                      "playlist"
                "\n  vlc:pause                      \tPause execution of "
                      "playlist items"
                "\n  vlc:quit                       \tQuit VLC" );

        intf_Msg( "" );

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    }

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#ifdef WIN32        /* Pause the console because it's destroyed when we exit */
        intf_Msg( "\nPress the RETURN key to continue..." );
        getchar();
#endif
}

/*****************************************************************************
 * ListModules: list the available modules with their description
 *****************************************************************************
 * Print a list of all available modules (builtins and plugins) and a short
 * description for each one.
 *****************************************************************************/
static void ListModules( void )
{
    module_t *p_module;
    char psz_spaces[20];

    memset( psz_spaces, 32, 20 );

#ifdef WIN32
    ShowConsole();
#endif

    /* Usage */
    intf_Msg( "Usage: %s [options] [parameters] [file]...\n",
              p_main->psz_arg0 );

    intf_Msg( "[plugin]              [description]" );

    /* Enumerate each module */
    for( p_module = p_module_bank->first ;
         p_module != NULL ;
         p_module = p_module->next )
    {
        int i;

        /* Nasty hack, but right now I'm too tired to think about a nice
         * solution */
        i = 20 - strlen( p_module->psz_name ) - 1;
        if( i < 0 ) i = 0;
        psz_spaces[i] = 0;

        intf_Msg( "  %s%s %s", p_module->psz_name, psz_spaces,
                  p_module->psz_longname );

        psz_spaces[i] = 32;

    }

#ifdef WIN32        /* Pause the console because it's destroyed when we exit */
        intf_Msg( "\nPress the RETURN key to continue..." );
        getchar();
#endif
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}

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/*****************************************************************************
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 * Version: print complete program version
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 *****************************************************************************
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 * Print complete program version and build number.
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 *****************************************************************************/
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static void Version( void )
{
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#ifdef WIN32
    ShowConsole();
#endif
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    intf_Msg( VERSION_MESSAGE
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        "This program comes with NO WARRANTY, to the extent permitted by "
        "law.\nYou may redistribute it under the terms of the GNU General "
        "Public License;\nsee the file named COPYING for details.\n"
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        "Written by the VideoLAN team at Ecole Centrale, Paris." );
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#ifdef WIN32        /* Pause the console because it's destroyed when we exit */
        intf_Msg( "\nPress the RETURN key to continue..." );
        getchar();
#endif
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}