input.c 89.9 KB
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/*****************************************************************************
 * input.c: input thread
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 *****************************************************************************
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 * Copyright (C) 1998-2004 the VideoLAN team
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 * $Id$
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 *
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 * Authors: Christophe Massiot <massiot@via.ecp.fr>
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 *          Laurent Aimar <fenrir@via.ecp.fr>
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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
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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 *****************************************************************************/
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/*****************************************************************************
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 * Preamble
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 *****************************************************************************/
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#include <stdlib.h>
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#include <ctype.h>
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#include <vlc/vlc.h>
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#include <vlc/input.h>
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#include <vlc/decoder.h>
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#include <vlc/vout.h>
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#include "input_internal.h"
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#include "stream_output.h"
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#include "vlc_playlist.h"
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#include "vlc_interface.h"
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#include "vlc_interaction.h"
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/*****************************************************************************
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 * Local prototypes
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 *****************************************************************************/
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static  int Run  ( input_thread_t *p_input );
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static  int RunAndClean  ( input_thread_t *p_input );
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static input_thread_t * Create  ( vlc_object_t *, input_item_t *, char *,
                                  vlc_bool_t );
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static  int             Init    ( input_thread_t *p_input, vlc_bool_t b_quick );
static void             Error   ( input_thread_t *p_input );
static void             End     ( input_thread_t *p_input );
static void             MainLoop( input_thread_t *p_input );
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static inline int ControlPopNoLock( input_thread_t *, int *, vlc_value_t * );
static void       ControlReduce( input_thread_t * );
static vlc_bool_t Control( input_thread_t *, int, vlc_value_t );
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static int  UpdateFromAccess( input_thread_t * );
static int  UpdateFromDemux( input_thread_t * );
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static int  UpdateMeta( input_thread_t *, vlc_bool_t );
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static void UpdateItemLength( input_thread_t *, int64_t i_length, vlc_bool_t );
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static void ParseOption( input_thread_t *p_input, const char *psz_option );

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static void DecodeUrl( char * );
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static void MRLSections( input_thread_t *, char *, int *, int *, int *, int *);
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static input_source_t *InputSourceNew( input_thread_t *);
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static int  InputSourceInit( input_thread_t *, input_source_t *,
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                             char *, char *psz_forced_demux,
                             vlc_bool_t b_quick );
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static void InputSourceClean( input_thread_t *, input_source_t * );

static void SlaveDemux( input_thread_t *p_input );
static void SlaveSeek( input_thread_t *p_input );
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static vlc_meta_t *InputMetaUser( input_thread_t *p_input );

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/*****************************************************************************
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 * This function creates a new input, and returns a pointer
 * to its description. On error, it returns NULL.
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 *
 * Variables for _public_ use:
 * * Get and Set:
 *  - state
 *  - rate,rate-slower, rate-faster
 *  - position, position-offset
 *  - time, time-offset
 *  - title,title-next,title-prev
 *  - chapter,chapter-next, chapter-prev
 *  - program, audio-es, video-es, spu-es
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 *  - audio-delay, spu-delay
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 *  - bookmark
 * * Get only:
 *  - length
 *  - bookmarks
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 *  - seekable (if you can seek, it doesn't say if 'bar display' has be shown or not, for that check position != 0.0)
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 * * For intf callback upon changes
 *  - intf-change
 * TODO explain when Callback is called
 * TODO complete this list (?)
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 *****************************************************************************/
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static input_thread_t *Create( vlc_object_t *p_parent, input_item_t *p_item,
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                               char *psz_header, vlc_bool_t b_quick )
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{
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    input_thread_t *p_input = NULL;                 /* thread descriptor */
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    vlc_value_t val;
    int i;
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    /* Allocate descriptor */
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    p_input = vlc_object_create( p_parent, VLC_OBJECT_INPUT );
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    if( p_input == NULL )
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    {
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        msg_Err( p_parent, "out of memory" );
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        return NULL;
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    }
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    p_input->psz_header = psz_header ? strdup( psz_header ) : NULL;
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    /* Init Common fields */
    p_input->b_eof = VLC_FALSE;
    p_input->b_can_pace_control = VLC_TRUE;
    p_input->i_start = 0;
    p_input->i_time  = 0;
    p_input->i_stop  = 0;
    p_input->i_title = 0;
    p_input->title   = NULL;
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    p_input->i_title_offset = p_input->i_seekpoint_offset = 0;
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    p_input->i_state = INIT_S;
    p_input->i_rate  = INPUT_RATE_DEFAULT;
    p_input->i_bookmark = 0;
    p_input->bookmark = NULL;
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    p_input->p_meta  = NULL;
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    p_input->p_es_out = NULL;
    p_input->p_sout  = NULL;
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    p_input->b_out_pace_control = VLC_FALSE;
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    p_input->i_pts_delay = 0;

    /* Init Input fields */
    p_input->input.p_item = p_item;
    p_input->input.p_access = NULL;
    p_input->input.p_stream = NULL;
    p_input->input.p_demux  = NULL;
    p_input->input.b_title_demux = VLC_FALSE;
    p_input->input.i_title  = 0;
    p_input->input.title    = NULL;
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    p_input->input.i_title_offset = p_input->input.i_seekpoint_offset = 0;
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    p_input->input.b_can_pace_control = VLC_TRUE;
    p_input->input.b_eof = VLC_FALSE;
    p_input->input.i_cr_average = 0;

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    stats_ReinitInputStats( p_item->p_stats );

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    /* No slave */
    p_input->i_slave = 0;
    p_input->slave   = NULL;

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    /* Init control buffer */
    vlc_mutex_init( p_input, &p_input->lock_control );
    p_input->i_control = 0;
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    /* Parse input options */
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    vlc_mutex_lock( &p_item->lock );
    for( i = 0; i < p_item->i_options; i++ )
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    {
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        ParseOption( p_input, p_item->ppsz_options[i] );
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    }
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    vlc_mutex_unlock( &p_item->lock );
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    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );
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    /* Create Objects variables for public Get and Set */
    input_ControlVarInit( p_input );
    p_input->input.i_cr_average = var_GetInteger( p_input, "cr-average" );
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    if( !b_quick )
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    {
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        var_Get( p_input, "bookmarks", &val );
        if( val.psz_string )
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        {
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            /* FIXME: have a common cfg parsing routine used by sout and others */
            char *psz_parser, *psz_start, *psz_end;
            psz_parser = val.psz_string;
            while( (psz_start = strchr( psz_parser, '{' ) ) )
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            {
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                 seekpoint_t *p_seekpoint = vlc_seekpoint_New();
                 char backup;
                 psz_start++;
                 psz_end = strchr( psz_start, '}' );
                 if( !psz_end ) break;
                 psz_parser = psz_end + 1;
                 backup = *psz_parser;
                 *psz_parser = 0;
                 *psz_end = ',';
                 while( (psz_end = strchr( psz_start, ',' ) ) )
                 {
                     *psz_end = 0;
                     if( !strncmp( psz_start, "name=", 5 ) )
                     {
                         p_seekpoint->psz_name = psz_start + 5;
                     }
                     else if( !strncmp( psz_start, "bytes=", 6 ) )
                     {
                         p_seekpoint->i_byte_offset = atoll(psz_start + 6);
                     }
                     else if( !strncmp( psz_start, "time=", 5 ) )
                     {
                         p_seekpoint->i_time_offset = atoll(psz_start + 5) * 1000000;
                     }
                     psz_start = psz_end + 1;
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                }
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                msg_Dbg( p_input, "adding bookmark: %s, bytes="I64Fd", time="I64Fd,
                                  p_seekpoint->psz_name, p_seekpoint->i_byte_offset,
                                  p_seekpoint->i_time_offset );
                input_Control( p_input, INPUT_ADD_BOOKMARK, p_seekpoint );
                vlc_seekpoint_Delete( p_seekpoint );
                *psz_parser = backup;
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            }
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            free( val.psz_string );
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        }
    }

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    /* Remove 'Now playing' info as it is probably outdated */
    input_Control( p_input, INPUT_DEL_INFO, _("Meta-information"),
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                    VLC_META_NOW_PLAYING );

    return p_input;
}

/**
 * Initialize an input thread and run it. You will need to monitor the thread to clean
 * up after it is done
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \return a pointer to the spawned input thread
 */
input_thread_t *__input_CreateThread( vlc_object_t *p_parent,
                                      input_item_t *p_item )
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{
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    return __input_CreateThread2( p_parent, p_item, NULL );
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}

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/* Gruik ! */
input_thread_t *__input_CreateThread2( vlc_object_t *p_parent,
                                       input_item_t *p_item,
                                       char *psz_header )
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{
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    input_thread_t *p_input = NULL;      /* thread descriptor */
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    p_input = Create( p_parent, p_item, psz_header, VLC_FALSE );
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    /* Now we can attach our new input */
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    vlc_object_attach( p_input, p_parent );
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    /* Create thread and wait for its readiness. */
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    if( vlc_thread_create( p_input, "input", Run,
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                            VLC_THREAD_PRIORITY_INPUT, VLC_TRUE ) )
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    {
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        msg_Err( p_input, "cannot create input thread" );
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        vlc_object_detach( p_input );
        vlc_object_destroy( p_input );
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        return NULL;
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    }
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    return p_input;
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}

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/**
 * Initialize an input thread and run it. This thread will clean after himself,
 * you can forget about it. It can work either in blocking or non-blocking mode
 *
 * \param p_parent a vlc_object
 * \param p_item an input item
 * \param b_block should we block until read is finished ?
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 * \return the input object id if non blocking, an error code else
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 */
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int __input_Read( vlc_object_t *p_parent, input_item_t *p_item,
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                   vlc_bool_t b_block )
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{
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    input_thread_t *p_input = NULL;         /* thread descriptor */
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    p_input = Create( p_parent, p_item, NULL, VLC_FALSE );
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    /* Now we can attach our new input */
    vlc_object_attach( p_input, p_parent );

    if( b_block )
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    {
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        RunAndClean( p_input );
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        return VLC_SUCCESS;
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    }
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    else
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    {
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        if( vlc_thread_create( p_input, "input", RunAndClean,
                               VLC_THREAD_PRIORITY_INPUT, VLC_TRUE ) )
        {
            msg_Err( p_input, "cannot create input thread" );
            vlc_object_detach( p_input );
            vlc_object_destroy( p_input );
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            return VLC_EGENERIC;
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        }
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    }
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    return p_input->i_object_id;
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}
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/**
 * Initialize an input and initialize it to preparse the item
 * This function is blocking. It will only accept to parse files
 *
 * \param p_parent a vlc_object_t
 * \param p_item an input item
 * \return VLC_SUCCESS or an error
 */
int __input_Preparse( vlc_object_t *p_parent, input_item_t *p_item )
{
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    input_thread_t *p_input = NULL;           /* thread descriptor */
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    /* Allocate descriptor */
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    p_input = Create( p_parent, p_item, NULL, VLC_TRUE );
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    /* Now we can attach our new input */
    vlc_object_attach( p_input, p_parent );

    Init( p_input, VLC_TRUE );

    /* Clean up master */
    InputSourceClean( p_input, &p_input->input );

    /* Kill access and demux */
    if( p_input->input.p_access ) p_input->input.p_access->b_die = VLC_TRUE;
    if( p_input->input.p_demux ) p_input->input.p_access->b_die = VLC_TRUE;

    /* Unload all modules */
    if( p_input->p_es_out ) input_EsOutDelete( p_input->p_es_out );

    /* Delete meta */
    if( p_input->p_meta ) vlc_meta_Delete( p_input->p_meta );

    vlc_object_detach( p_input );
    vlc_object_destroy( p_input );

    return VLC_SUCCESS;
}

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/**
 * Request a running input thread to stop and die
 *
 * \param the input thread to stop
 */
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void input_StopThread( input_thread_t *p_input )
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{
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    vlc_list_t *p_list;
    int i;
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    /* Set die for input */
    p_input->b_die = VLC_TRUE;
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    /* We cannot touch p_input fields directly (we can from another thread),
     * so use the vlc_object_find way, it's perfectly safe */
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    /* Set die for all access */
    p_list = vlc_list_find( p_input, VLC_OBJECT_ACCESS, FIND_CHILD );
    for( i = 0; i < p_list->i_count; i++ )
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    {
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        p_list->p_values[i].p_object->b_die = VLC_TRUE;
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    }
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    vlc_list_release( p_list );
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    /* Set die for all stream */
    p_list = vlc_list_find( p_input, VLC_OBJECT_STREAM, FIND_CHILD );
    for( i = 0; i < p_list->i_count; i++ )
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    {
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        p_list->p_values[i].p_object->b_die = VLC_TRUE;
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    }
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    vlc_list_release( p_list );
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    /* Set die for all demux */
    p_list = vlc_list_find( p_input, VLC_OBJECT_DEMUX, FIND_CHILD );
    for( i = 0; i < p_list->i_count; i++ )
    {
        p_list->p_values[i].p_object->b_die = VLC_TRUE;
    }
    vlc_list_release( p_list );
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    input_ControlPush( p_input, INPUT_CONTROL_SET_DIE, NULL );
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}

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/**
 * Clean up a dead input thread
 * This function does not return until the thread is effectively cancelled.
 *
 * \param the input thread to kill
 */
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void input_DestroyThread( input_thread_t *p_input )
{
    /* Join the thread */
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    vlc_thread_join( p_input );
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    /* Delete input lock (only after thread joined) */
    vlc_mutex_destroy( &p_input->lock_control );

    /* TODO: maybe input_DestroyThread should also delete p_input instead
     * of the playlist but I'm not sure if it's possible */
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}

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/*****************************************************************************
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 * Run: main thread loop
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 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
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 *****************************************************************************/
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static int Run( input_thread_t *p_input )
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{
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    /* Signal that the thread is launched */
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    vlc_thread_ready( p_input );

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    if( Init( p_input, VLC_FALSE ) )
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    {
        /* If we failed, wait before we are killed, and exit */
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        p_input->b_error = VLC_TRUE;
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        Error( p_input );
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        /* Tell we're dead */
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        p_input->b_dead = VLC_TRUE;
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        return 0;
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    }
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    MainLoop( p_input );

    if( !p_input->b_eof && !p_input->b_error && p_input->input.b_eof )
    {
        /* We have finish to demux data but not to play them */
        while( !p_input->b_die )
        {
            if( input_EsOutDecodersEmpty( p_input->p_es_out ) )
                break;

            msg_Dbg( p_input, "waiting decoder fifos to empty" );

            msleep( INPUT_IDLE_SLEEP );
        }

        /* We have finished */
        p_input->b_eof = VLC_TRUE;
    }

    /* Wait we are asked to die */
    if( !p_input->b_die )
    {
        Error( p_input );
    }

    /* Clean up */
    End( p_input );

    return 0;
}

/*****************************************************************************
 * RunAndClean: main thread loop
 * This is the "just forget me" thread that spawns the input processing chain,
 * reads the stream, cleans up and releases memory
 *****************************************************************************/
static int RunAndClean( input_thread_t *p_input )
{
    /* Signal that the thread is launched */
    vlc_thread_ready( p_input );

    if( Init( p_input, VLC_FALSE ) )
    {
        /* If we failed, just exit */
        return 0;
    }

    MainLoop( p_input );

    if( !p_input->b_eof && !p_input->b_error && p_input->input.b_eof )
    {
        /* We have finish to demux data but not to play them */
        while( !p_input->b_die )
        {
            if( input_EsOutDecodersEmpty( p_input->p_es_out ) )
                break;

            msg_Dbg( p_input, "waiting decoder fifos to empty" );

            msleep( INPUT_IDLE_SLEEP );
        }
        /* We have finished */
        p_input->b_eof = VLC_TRUE;
    }

    /* Clean up */
    End( p_input );

    /* Release memory */
    vlc_object_detach( p_input );
    vlc_object_destroy( p_input );

    return 0;
}


/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/
static void MainLoop( input_thread_t *p_input )
{
    int64_t i_intf_update = 0;
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    while( !p_input->b_die && !p_input->b_error && !p_input->input.b_eof )
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    {
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        vlc_bool_t b_force_update = VLC_FALSE;
        int i_ret;
        int i_type;
        vlc_value_t val;
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        /* Do the read */
        if( p_input->i_state != PAUSE_S  )
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        {
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            if( p_input->i_stop <= 0 || p_input->i_time < p_input->i_stop )
                i_ret=p_input->input.p_demux->pf_demux(p_input->input.p_demux);
            else
                i_ret = 0;  /* EOF */
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            if( i_ret > 0 )
            {
                /* TODO */
                if( p_input->input.b_title_demux &&
                    p_input->input.p_demux->info.i_update )
                {
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                    i_ret = UpdateFromDemux( p_input );
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                    b_force_update = VLC_TRUE;
                }
                else if( !p_input->input.b_title_demux &&
                          p_input->input.p_access &&
                          p_input->input.p_access->info.i_update )
                {
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                    i_ret = UpdateFromAccess( p_input );
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                    b_force_update = VLC_TRUE;
                }
            }
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            if( i_ret == 0 )    /* EOF */
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            {
                vlc_value_t repeat;
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                var_Get( p_input, "input-repeat", &repeat );
                if( repeat.i_int == 0 )
                {
                    /* End of file - we do not set b_die because only the
                     * playlist is allowed to do so. */
                    msg_Dbg( p_input, "EOF reached" );
                    p_input->input.b_eof = VLC_TRUE;
                }
                else
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                {
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                    msg_Dbg( p_input, "repeating the same input (%d)",
                             repeat.i_int );
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                    if( repeat.i_int > 0 )
                    {
                        repeat.i_int--;
                        var_Set( p_input, "input-repeat", repeat );
                    }
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                    /* Seek to start title/seekpoint */
                    val.i_int = p_input->input.i_title_start -
                        p_input->input.i_title_offset;
                    if( val.i_int < 0 || val.i_int >= p_input->input.i_title )
                        val.i_int = 0;
                    input_ControlPush( p_input,
                                       INPUT_CONTROL_SET_TITLE, &val );

                    val.i_int = p_input->input.i_seekpoint_start -
                        p_input->input.i_seekpoint_offset;
                    if( val.i_int > 0 /* TODO: check upper boundary */ )
                        input_ControlPush( p_input,
                                           INPUT_CONTROL_SET_SEEKPOINT, &val );

                    /* Seek to start position */
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                    if( p_input->i_start > 0 )
                    {
                        val.i_time = p_input->i_start;
                        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME,
                                           &val );
                    }
                    else
                    {
                        val.f_float = 0.0;
                        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION,
                                           &val );
                    }
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                }
            }
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            else if( i_ret < 0 )
            {
                p_input->b_error = VLC_TRUE;
            }
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            if( i_ret > 0 && p_input->i_slave > 0 )
            {
                SlaveDemux( p_input );
            }
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        }
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        else
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        {
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            /* Small wait */
            msleep( 10*1000 );
        }
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        /* Handle control */
        vlc_mutex_lock( &p_input->lock_control );
        ControlReduce( p_input );
        while( !ControlPopNoLock( p_input, &i_type, &val ) )
        {
            msg_Dbg( p_input, "control type=%d", i_type );
            if( Control( p_input, i_type, val ) )
                b_force_update = VLC_TRUE;
        }
        vlc_mutex_unlock( &p_input->lock_control );
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        if( b_force_update || i_intf_update < mdate() )
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        {
            vlc_value_t val;
            double f_pos;
            int64_t i_time, i_length;
            /* update input status variables */
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            if( !demux2_Control( p_input->input.p_demux,
                                 DEMUX_GET_POSITION, &f_pos ) )
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            {
                val.f_float = (float)f_pos;
                var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
            }
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            if( !demux2_Control( p_input->input.p_demux,
                                 DEMUX_GET_TIME, &i_time ) )
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            {
                p_input->i_time = i_time;
                val.i_time = i_time;
                var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
            }
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            if( !demux2_Control( p_input->input.p_demux,
                                 DEMUX_GET_LENGTH, &i_length ) )
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            {
                vlc_value_t old_val;
                var_Get( p_input, "length", &old_val );
                val.i_time = i_length;
                var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );
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                if( old_val.i_time != val.i_time )
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                {
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                    UpdateItemLength( p_input, i_length, VLC_TRUE );
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                }
            }
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            var_SetBool( p_input, "intf-change", VLC_TRUE );
            i_intf_update = mdate() + I64C(150000);
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        }
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    }
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}

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static int Init( input_thread_t * p_input, vlc_bool_t b_quick )
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{
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    char *psz;
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    char *psz_subtitle;
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    vlc_value_t val;
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    double f_fps;
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    vlc_meta_t *p_meta, *p_meta_tmp;
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    int i_es_out_mode;
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    int i, i_delay;
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    /* Initialize optional stream output. (before access/demuxer)
     * XXX: we add a special case if the uri starts by vlc.
     * else 'vlc in.file --sout "" vlc:quit'  cannot work (the output will
     * be destroyed in case of a file).
     * (this will break playing of file starting by 'vlc:' but I don't
     * want to add more logic, just force file by file:// or code it ;)
     */
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    if( !b_quick )
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    {
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        counter_t *p_counter;
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        stats_Create( p_input, "read_bytes", VLC_VAR_INTEGER, STATS_COUNTER );
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        stats_Create( p_input, "read_packets", VLC_VAR_INTEGER, STATS_COUNTER );
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        stats_Create( p_input, "demux_read", VLC_VAR_INTEGER, STATS_COUNTER );
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        stats_Create( p_input, "input_bitrate", VLC_VAR_FLOAT,
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                               STATS_DERIVATIVE );
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        stats_Create( p_input, "demux_bitrate", VLC_VAR_FLOAT,
                               STATS_DERIVATIVE );
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        p_counter = stats_CounterGet( p_input, p_input->i_object_id,
                                      "input_bitrate" );
        if( p_counter ) p_counter->update_interval = 1000000;
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        p_counter = stats_CounterGet( p_input, p_input->i_object_id,
                                      "demux_bitrate" );
        if( p_counter ) p_counter->update_interval = 1000000;
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        psz = var_GetString( p_input, "sout" );
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        if( *psz && strncasecmp( p_input->input.p_item->psz_uri, "vlc:", 4 ) )
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        {
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            p_input->p_sout = sout_NewInstance( p_input, psz );
            if( p_input->p_sout == NULL )
            {
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                msg_Err( p_input, "cannot start stream output instance, " \
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                                  "aborting" );
                free( psz );
                return VLC_EGENERIC;
            }
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        }
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        free( psz );
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    }
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    /* Create es out */
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    p_input->p_es_out = input_EsOutNew( p_input );
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    es_out_Control( p_input->p_es_out, ES_OUT_SET_ACTIVE, VLC_FALSE );
    es_out_Control( p_input->p_es_out, ES_OUT_SET_MODE, ES_OUT_MODE_NONE );
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    if( InputSourceInit( p_input, &p_input->input,
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                         p_input->input.p_item->psz_uri, NULL, b_quick ) )
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    {
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        goto error;
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    }
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    /* Create global title (from master) */
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    if( !b_quick )
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    {
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        p_input->i_title = p_input->input.i_title;
        p_input->title   = p_input->input.title;
        p_input->i_title_offset = p_input->input.i_title_offset;
        p_input->i_seekpoint_offset = p_input->input.i_seekpoint_offset;
        if( p_input->i_title > 0 )
        {
            /* Setup variables */
            input_ControlVarNavigation( p_input );
            input_ControlVarTitle( p_input, 0 );
        }
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        /* Global flag */
        p_input->b_can_pace_control = p_input->input.b_can_pace_control;
        p_input->b_can_pause        = p_input->input.b_can_pause;
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        /* Fix pts delay */
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        if( p_input->i_pts_delay < 0 )
            p_input->i_pts_delay = 0;
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        /* If the desynchronisation requested by the user is < 0, we need to
         * cache more data. */
        var_Get( p_input, "audio-desync", &val );
        if( val.i_int < 0 ) p_input->i_pts_delay -= (val.i_int * 1000);
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        /* Update cr_average depending on the caching */
        p_input->input.i_cr_average *= (10 * p_input->i_pts_delay / 200000);
        p_input->input.i_cr_average /= 10;
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        if( p_input->input.i_cr_average < 10 ) p_input->input.i_cr_average = 10;
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    }
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    /* Load master infos */
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    /* Init length */
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    if( !demux2_Control( p_input->input.p_demux, DEMUX_GET_LENGTH,
                         &val.i_time ) && val.i_time > 0 )
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    {
        var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );
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        UpdateItemLength( p_input, val.i_time, b_quick );
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        p_input->input.p_item->i_duration = val.i_time;
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    }
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    /* Start title/chapter */
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    if( !b_quick )
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    {
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        val.i_int = p_input->input.i_title_start -
                    p_input->input.i_title_offset;
        if( val.i_int > 0 && val.i_int < p_input->input.i_title )
            input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );
        val.i_int = p_input->input.i_seekpoint_start -
                    p_input->input.i_seekpoint_offset;
        if( val.i_int > 0 /* TODO: check upper boundary */ )
            input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &val );

        /* Start time*/
        /* Set start time */
        p_input->i_start = (int64_t)var_GetInteger( p_input, "start-time" ) *
                           I64C(1000000);
        p_input->i_stop  = (int64_t)var_GetInteger( p_input, "stop-time" ) *
                           I64C(1000000);

        if( p_input->i_start > 0 )
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        {
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            if( p_input->i_start >= val.i_time )
            {
                msg_Warn( p_input, "invalid start-time ignored" );
            }
            else
            {
                vlc_value_t s;
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                msg_Dbg( p_input, "starting at time: %ds",
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                                  (int)( p_input->i_start / I64C(1000000) ) );
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                s.i_time = p_input->i_start;
                input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &s );
            }
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        }
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        if( p_input->i_stop > 0 && p_input->i_stop <= p_input->i_start )
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        {
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            msg_Warn( p_input, "invalid stop-time ignored" );
            p_input->i_stop = 0;
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        }

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        /* Load subtitles */
        /* Get fps and set it if not already set */
        if( !demux2_Control( p_input->input.p_demux, DEMUX_GET_FPS, &f_fps ) &&
            f_fps > 1.0 )
        {
            float f_requested_fps;
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            var_Create( p_input, "sub-original-fps", VLC_VAR_FLOAT );
            var_SetFloat( p_input, "sub-original-fps", f_fps );
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            f_requested_fps = var_CreateGetFloat( p_input, "sub-fps" );
            if( f_requested_fps != f_fps )
            {
                var_Create( p_input, "sub-fps", VLC_VAR_FLOAT|
                                                VLC_VAR_DOINHERIT );
                var_SetFloat( p_input, "sub-fps", f_requested_fps );
            }
        }
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        i_delay = var_CreateGetInteger( p_input, "sub-delay" );
        if( i_delay != 0 )
        {
            var_SetTime( p_input, "spu-delay", (mtime_t)i_delay * 100000 );
        }
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        /* Look for and add subtitle files */
        psz_subtitle = var_GetString( p_input, "sub-file" );
        if( *psz_subtitle )
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        {
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            input_source_t *sub;
            vlc_value_t count;
            vlc_value_t list;

            msg_Dbg( p_input, "forced subtitle: %s", psz_subtitle );
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            var_Change( p_input, "spu-es", VLC_VAR_CHOICESCOUNT, &count, NULL );

            /* */
            sub = InputSourceNew( p_input );
            if( !InputSourceInit( p_input, sub, psz_subtitle, "subtitle",
                                  VLC_FALSE ) )
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            {
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                TAB_APPEND( p_input->i_slave, p_input->slave, sub );
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                /* Select the ES */
                if( !var_Change( p_input, "spu-es", VLC_VAR_GETLIST, &list,
                                 NULL ) )
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                {
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                    if( count.i_int == 0 )
                        count.i_int++;
                        /* if it was first one, there is disable too */

                    if( count.i_int < list.p_list->i_count )
                    {
                        input_ControlPush( p_input, INPUT_CONTROL_SET_ES,
                                          &list.p_list->p_values[count.i_int] );
                    }
                    var_Change( p_input, "spu-es", VLC_VAR_FREELIST, &list,
                                NULL );
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                }
            }
        }
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        var_Get( p_input, "sub-autodetect-file", &val );
        if( val.b_bool )
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        {
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            char *psz_autopath = var_GetString( p_input, "sub-autodetect-path" );
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            char **subs = subtitles_Detect( p_input, psz_autopath,
                                            p_input->input.p_item->psz_uri );
            input_source_t *sub;

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            for( i = 0; subs && subs[i]; i++ )
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            {
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                if( strcmp( psz_subtitle, subs[i] ) )
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                {
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                    sub = InputSourceNew( p_input );
                    if( !InputSourceInit( p_input, sub, subs[i], "subtitle",
                                          VLC_FALSE ) )
                    {
                         TAB_APPEND( p_input->i_slave, p_input->slave, sub );
                    }
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                }
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                free( subs[i] );
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            }
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            if( subs ) free( subs );
            if( psz_autopath ) free( psz_autopath );
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        }
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        free( psz_subtitle );
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        /* Look for slave */
        psz = var_GetString( p_input, "input-slave" );
        if( *psz )
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        {
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            char *psz_delim;
            input_source_t *slave;
            while( psz && *psz )
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            {
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                while( *psz == ' ' || *psz == '#' )
                {
                    psz++;
                }
                if( ( psz_delim = strchr( psz, '#' ) ) )
                {
                    *psz_delim++ = '\0';
                }
                if( *psz == 0 )
                {
                    break;
                }
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                msg_Dbg( p_input, "adding slave input '%s'", psz );
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                slave = InputSourceNew( p_input );
                if( !InputSourceInit( p_input, slave, psz, NULL, VLC_FALSE ) )
                {
                    TAB_APPEND( p_input->i_slave, p_input->slave, slave );
                }
                psz = psz_delim;
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            }
        }
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        if( psz ) free( psz );
    }
    else
    {
        p_input->i_start = 0;
        p_input->i_start = 0;
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    }
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    /* Set up es_out */
942
    if( !b_quick )
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    {
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        es_out_Control( p_input->p_es_out, ES_OUT_SET_ACTIVE, VLC_TRUE );
        i_es_out_mode = ES_OUT_MODE_AUTO;
        val.p_list = NULL;
        if( p_input->p_sout )
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        {
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            var_Get( p_input, "sout-all", &val );
            if ( val.b_bool )
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            {
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                i_es_out_mode = ES_OUT_MODE_ALL;
                val.p_list = NULL;
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            }
            else
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            {
                var_Get( p_input, "programs", &val );
                if ( val.p_list && val.p_list->i_count )
                {
                    i_es_out_mode = ES_OUT_MODE_PARTIAL;
                    /* Note : we should remove the "program" callback. */
                }
                else
                    var_Change( p_input, "programs", VLC_VAR_FREELIST, &val,
                                NULL );
            }
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        }
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        es_out_Control( p_input->p_es_out, ES_OUT_SET_MODE, i_es_out_mode );
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        /* Inform the demuxer about waited group (needed only for DVB) */
        if( i_es_out_mode == ES_OUT_MODE_ALL )
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        {
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            demux2_Control( p_input->input.p_demux, DEMUX_SET_GROUP, -1, NULL );
        }
        else if( i_es_out_mode == ES_OUT_MODE_PARTIAL )
        {
            demux2_Control( p_input->input.p_demux, DEMUX_SET_GROUP, -1,
                            val.p_list );
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        }
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        else
        {
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            demux2_Control( p_input->input.p_demux, DEMUX_SET_GROUP,
                           (int) var_GetInteger( p_input, "program" ), NULL );
        }

        if( p_input->p_sout )
        {
            if( p_input->p_sout->i_out_pace_nocontrol > 0 )
            {
                p_input->b_out_pace_control = VLC_FALSE;
            }
            else
            {
                p_input->b_out_pace_control = VLC_TRUE;
            }
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            if( p_input->b_can_pace_control && p_input->b_out_pace_control )
            {
                /* We don't want a high input priority here or we'll
                 * end-up sucking up all the CPU time */
                vlc_thread_set_priority( p_input, VLC_THREAD_PRIORITY_LOW );
            }

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            msg_Dbg( p_input, "starting in %s mode",
                     p_input->b_out_pace_control ? "asynch" : "synch" );
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        }
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    }

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    /* Get meta data from users */
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    p_meta_tmp = InputMetaUser( p_input );
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    /* Get meta data from master input */
    if( demux2_Control( p_input->input.p_demux, DEMUX_GET_META, &p_meta ) )
        p_meta = NULL;
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    /* Merge them */
    if( p_meta == NULL )
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    {
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        p_meta = p_meta_tmp;
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    }
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    else if( p_meta_tmp )
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    {
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        vlc_meta_Merge( p_meta, p_meta_tmp );
        vlc_meta_Delete( p_meta_tmp );
    }

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    /* Access_file does not give any meta, and there are no slave */
    if( !b_quick )
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    {
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        if( !p_input->input.p_access ||
            access2_Control( p_input->input.p_access, ACCESS_GET_META,
                             &p_meta_tmp))
            p_meta_tmp = NULL;
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        if( p_meta == NULL )
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        {
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            p_meta = p_meta_tmp;
        }
        else if( p_meta_tmp )
        {
            vlc_meta_Merge( p_meta, p_meta_tmp );
            vlc_meta_Delete( p_meta_tmp );
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        }

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        /* Get meta data from slave input */
        for( i = 0; i < p_input->i_slave; i++ )
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        {
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            vlc_meta_t *p_meta_slave;

            if( !demux2_Control( p_input->slave[i]->p_demux,
                                 DEMUX_GET_META, &p_meta_slave ) )
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            {
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                if( p_meta == NULL )
                {
                    p_meta = p_meta_slave;
                }
                else if( p_meta_slave )
                {
                    vlc_meta_Merge( p_meta, p_meta_slave );
                    vlc_meta_Delete( p_meta_slave );
                }
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            }
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            if( p_input->slave[i]->p_access &&
                !access2_Control( p_input->slave[i]->p_access,
                                  ACCESS_GET_META, &p_meta_slave ) )
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            {
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                if( p_meta == NULL )
                {
                    p_meta = p_meta_slave;
                }
                else if( p_meta_slave )
                {
                    vlc_meta_Merge( p_meta, p_meta_slave );
                    vlc_meta_Delete( p_meta_slave );
                }
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            }
        }
    }
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    p_input->p_meta = p_meta;
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    UpdateMeta( p_input, b_quick );
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    if( !b_quick )
    {
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        msg_Dbg( p_input, "`%s' successfully opened",
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                 p_input->input.p_item->psz_uri );

    }
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    /* initialization is complete */
    p_input->i_state = PLAYING_S;
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    val.i_int = PLAYING_S;
    var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
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    return VLC_SUCCESS;
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error:
    if( p_input->p_es_out )
        input_EsOutDelete( p_input->p_es_out );
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    if( p_input->p_sout )
        sout_DeleteInstance( p_input->p_sout );
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    /* Mark them deleted */
    p_input->input.p_demux = NULL;
    p_input->input.p_stream = NULL;
    p_input->input.p_access = NULL;
    p_input->p_es_out = NULL;
    p_input->p_sout = NULL;
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    return VLC_EGENERIC;
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}

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/*****************************************************************************
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 * Error: RunThread() error loop
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 *****************************************************************************
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 * This function is called when an error occurred during thread main's loop.
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 *****************************************************************************/
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static void Error( input_thread_t *p_input )
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{
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    while( !p_input->b_die )
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    {
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        /* Sleep a while */
        msleep( INPUT_IDLE_SLEEP );