input.c 60.4 KB
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/*****************************************************************************
 * input.c: input thread
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 *****************************************************************************
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 * Copyright (C) 1998-2004 VideoLAN
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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
 * 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 <stdlib.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_interface.h"
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#include "vlc_meta.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 );

static  int Init ( input_thread_t *p_input );
static void Error( input_thread_t *p_input );
static void End  ( input_thread_t *p_input );

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 void UpdateFromAccess( input_thread_t * );
static void UpdateFromDemux( input_thread_t * );
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static void UpdateItemLength( input_thread_t *, int64_t i_length );

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static void ParseOption( input_thread_t *p_input, const char *psz_option );

static void DecodeUrl  ( char * );
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static void MRLSplit( input_thread_t *, char *, char **, char **, char ** );
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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 *,
                             char *, char *psz_forced_demux );
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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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 * input_CreateThread: creates a new input thread
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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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input_thread_t *__input_CreateThread( vlc_object_t *p_parent,
                                      input_item_t *p_item )
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{
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    input_thread_t *p_input;                        /* 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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    /* 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;
    p_input->i_state = INIT_S;
    p_input->i_rate  = INPUT_RATE_DEFAULT;
    p_input->i_bookmark = 0;
    p_input->bookmark = NULL;
    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;
    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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    /* 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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        msg_Dbg( p_input, "option: %s", p_item->ppsz_options[i] );
        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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    /* TODO */
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    var_Get( p_input, "bookmarks", &val );
    if( val.psz_string )
    {
        /* 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, '{' ) ) )
        {
            seekpoint_t seekpoint;
            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 = ',';

            seekpoint.psz_name = 0;
            seekpoint.i_byte_offset = 0;
            seekpoint.i_time_offset = 0;
            while( (psz_end = strchr( psz_start, ',' ) ) )
            {
                *psz_end = 0;
                if( !strncmp( psz_start, "name=", 5 ) )
                {
                    seekpoint.psz_name = psz_start + 5;
                }
                else if( !strncmp( psz_start, "bytes=", 6 ) )
                {
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                    seekpoint.i_byte_offset = atoll(psz_start + 6);
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                }
                else if( !strncmp( psz_start, "time=", 5 ) )
                {
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                    seekpoint.i_time_offset = atoll(psz_start + 5) * 1000000;
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                }
                psz_start = psz_end + 1;
            }
            msg_Dbg( p_input, "adding bookmark: %s, bytes="I64Fd", time="I64Fd,
                     seekpoint.psz_name, seekpoint.i_byte_offset,
                     seekpoint.i_time_offset );
            input_Control( p_input, INPUT_ADD_BOOKMARK, &seekpoint );
            *psz_parser = backup;
        }
        free( val.psz_string );
    }

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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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/*****************************************************************************
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 * input_StopThread: mark an input thread as zombie
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 *****************************************************************************
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 * This function should not return until the thread is effectively cancelled.
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 *****************************************************************************/
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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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}

/*****************************************************************************
 * input_DestroyThread: mark an input thread as zombie
 *****************************************************************************
 * This function should not return until the thread is effectively cancelled.
 *****************************************************************************/
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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 *****************************************************************************
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 * Thread in charge of processing the network packets and demultiplexing.
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 *
 * TODO:
 *  read subtitle support (XXX take care of spu-delay in the right way).
 *  multi-input support (XXX may be done with subs)
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 *****************************************************************************/
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static int Run( input_thread_t *p_input )
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{
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    int64_t i_intf_update = 0;
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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 ) )
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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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    /* Main loop */
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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 )
                {
                    UpdateFromDemux( p_input );
                    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 )
                {
                    UpdateFromAccess( p_input );
                    b_force_update = VLC_TRUE;
                }
            }
            else if( i_ret == 0 )    /* EOF */
            {
                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 title 0 position 0(start) */
                    val.i_int = 0;
                    input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );
                    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() )
        {
            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 );
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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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    if( !p_input->b_eof && !p_input->b_error && p_input->input.b_eof )
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    {
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        /* We have finish to demux data but not to play them */
        while( !p_input->b_die )
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        {
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            if( input_EsOutDecodersEmpty( p_input->p_es_out ) )
                break;
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            msg_Dbg( p_input, "waiting decoder fifos to empty" );
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            msleep( INPUT_IDLE_SLEEP );
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        }
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        /* We have finished */
        p_input->b_eof = VLC_TRUE;
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    }

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    /* Wait we are asked to die */
    if( !p_input->b_die )
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    {
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        Error( p_input );
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    }
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    /* Clean up */
    End( p_input );
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    return 0;
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}

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/*****************************************************************************
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 * Init: init the input Thread
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 *****************************************************************************/
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static int Init( input_thread_t * p_input )
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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_user;
    int i;
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    /* Initialize optional stream output. (before access/demuxer) */
    psz = var_GetString( p_input, "sout" );
    if( *psz )
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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, aborting" );
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            free( psz );
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            return VLC_EGENERIC;
        }
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    }
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    free( psz );
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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 ) )
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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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    p_input->i_title = p_input->input.i_title;
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    p_input->title   = p_input->input.title;
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    if( p_input->i_title > 0 )
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    {
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        /* Setup variables */
        input_ControlVarNavigation( p_input );
        input_ControlVarTitle( p_input, 0 );
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    }
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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;

    /* Fix pts delay */
    if( p_input->i_pts_delay <= 0 )
        p_input->i_pts_delay = DEFAULT_PTS_DELAY;
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    /* If the desynchronisation requested by the user is < 0, we need to
     * cache more data. */
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    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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    /* 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 );
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    }
    /* 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 )
    {
        if( p_input->i_start >= val.i_time )
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        {
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            msg_Warn( p_input, "invalid start-time ignored" );
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        }
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        else
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        {
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            vlc_value_t s;

            msg_Dbg( p_input, "start-time: %ds",
                     (int)( p_input->i_start / I64C(1000000) ) );

            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 )
    {
        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 )
    {
        vlc_value_t fps;

        if( var_Get( p_input, "sub-fps", &fps ) )
        {
            var_Create( p_input, "sub-fps", VLC_VAR_FLOAT| VLC_VAR_DOINHERIT );
            var_SetFloat( p_input, "sub-fps", f_fps );
        }
    }

    /* Look for and add subtitle files */
    psz_subtitle = var_GetString( p_input, "sub-file" );
    if( *psz_subtitle )
    {
        input_source_t *sub;
        vlc_value_t count;
        vlc_value_t list;

        msg_Dbg( p_input, "forced subtitle: %s", psz_subtitle );

        var_Change( p_input, "spu-es", VLC_VAR_CHOICESCOUNT, &count, NULL );

        /* */
        sub = InputSourceNew( p_input );
        if( !InputSourceInit( p_input, sub, psz_subtitle, "subtitle" ) )
        {
            TAB_APPEND( p_input->i_slave, p_input->slave, sub );

            /* Select the ES */
            if( !var_Change( p_input, "spu-es", VLC_VAR_GETLIST, &list, NULL ) )
            {
                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 )
                {
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                    input_ControlPush( p_input, INPUT_CONTROL_SET_ES,
                                       &list.p_list->p_values[count.i_int] );
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                }
                var_Change( p_input, "spu-es", VLC_VAR_FREELIST, &list, NULL );
            }
        }
    }

    var_Get( p_input, "sub-autodetect-file", &val );
    if( val.b_bool )
    {
        char *psz_autopath = var_GetString( p_input, "sub-autodetect-path" );
        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[i] != NULL; i++ )
        {
            if( strcmp( psz_subtitle, subs[i] ) )
            {
                sub = InputSourceNew( p_input );
                if( !InputSourceInit( p_input, sub, subs[i], "subtitle" ) )
                {
                    TAB_APPEND( p_input->i_slave, p_input->slave, sub );
                }
            }
            free( subs[i] );
        }
        free( subs );
        free( psz_autopath );
    }
    free( psz_subtitle );
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    /* Look for slave */
    psz = var_GetString( p_input, "input-slave" );
    if( *psz )
    {
        char *psz_delim = strchr( psz, '#' );

        for( ;; )
        {
            input_source_t *slave;

            if( psz_delim )
            {
                *psz_delim++ = '\0';
            }

            if( *psz == '\0' )
            {
                if( psz_delim )
                    continue;
                else
                    break;
            }

            msg_Dbg( p_input, "adding slave '%s'", psz );
            slave = InputSourceNew( p_input );
            if( !InputSourceInit( p_input, slave, psz, NULL ) )
            {
                TAB_APPEND( p_input->i_slave, p_input->slave, slave );
            }
            if( !psz_delim )
                break;
        }
    }
    free( psz );
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    /* Set up es_out */
    es_out_Control( p_input->p_es_out, ES_OUT_SET_ACTIVE, VLC_TRUE );
    val.b_bool =  VLC_FALSE;
    if( p_input->p_sout )
    {
        var_Get( p_input, "sout-all", &val );
    }
    es_out_Control( p_input->p_es_out, ES_OUT_SET_MODE,
                    val.b_bool ? ES_OUT_MODE_ALL : ES_OUT_MODE_AUTO );

    if( p_input->p_sout )
    {
        if( p_input->p_sout->i_out_pace_nocontrol > 0 )
        {
            p_input->b_out_pace_control = VLC_FALSE;
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        }
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        else
        {
            p_input->b_out_pace_control = VLC_TRUE;
        }
        msg_Dbg( p_input, "starting in %s mode",
                 p_input->b_out_pace_control ? "asynch" : "synch" );
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    }

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    /* Get meta data from users */
    p_meta_user = 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_user;
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    }
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    else if( p_meta_user )
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    {
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        vlc_meta_Merge( p_meta, p_meta_user );
        vlc_meta_Delete( p_meta_user );
    }
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    /* Get meta data from slave input */
    for( i = 0; i < p_input->i_slave; i++ )
    {
        vlc_meta_t *p_meta_slave;
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        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 )
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            {
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                p_meta = p_meta_slave;
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            }
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            else if( p_meta_slave )
            {
                vlc_meta_Merge( p_meta, p_meta_slave );
                vlc_meta_Delete( p_meta_slave );
            }
        }
    }

    if( p_meta && p_meta->i_meta > 0 )
    {
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        msg_Dbg( p_input, "meta information:" );
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        for( i = 0; i < p_meta->i_meta; i++ )
        {
            msg_Dbg( p_input, "  - '%s' = '%s'",
                    _(p_meta->name[i]), p_meta->value[i] );

            if( !strcmp(p_meta->name[i], VLC_META_TITLE) && p_meta->value[i] )
                input_Control( p_input, INPUT_SET_NAME, p_meta->value[i] );

            if( !strcmp( p_meta->name[i], VLC_META_AUTHOR ) )
                input_Control( p_input, INPUT_ADD_INFO, _("General"),
                               _("Author"), p_meta->value[i] );

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            input_Control( p_input, INPUT_ADD_INFO, _("Meta-information"),
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                          _(p_meta->name[i]), "%s", p_meta->value[i] );
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        }
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        for( i = 0; i < p_meta->i_track; i++ )
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        {
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            vlc_meta_t *tk = p_meta->track[i];
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            int j;

            if( tk->i_meta > 0 )
            {
                char *psz_cat = malloc( strlen(_("Stream")) + 10 );

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                msg_Dbg( p_input, "  - track[%d]:", i );

                sprintf( psz_cat, "%s %d", _("Stream"), i );
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                for( j = 0; j < tk->i_meta; j++ )
                {
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                    msg_Dbg( p_input, "     - '%s' = '%s'", _(tk->name[j]),
                             tk->value[j] );
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                    input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                                   _(tk->name[j]), "%s", tk->value[j] );
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                }
            }
        }

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        if( p_input->p_sout && p_input->p_sout->p_meta == NULL )
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        {
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            p_input->p_sout->p_meta = p_meta;
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        }
        else
        {
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            vlc_meta_Delete( p_meta );
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        }
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    }

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    msg_Dbg( p_input, "`%s' sucessfully opened",
             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 occured 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 );
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    }
}

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/*****************************************************************************
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 * End: end the input thread
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 *****************************************************************************/
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static void End( input_thread_t * p_input )
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{
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    vlc_value_t val;
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    int i;
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    msg_Dbg( p_input, "closing `%s'",
             p_input->input.p_item->psz_uri );
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    /* We are at the end */
    p_input->i_state = END_S;

    val.i_int = END_S;
    var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );

    /* Clean control variables */
    input_ControlVarClean( p_input );
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    /* Clean up master */
    InputSourceClean( p_input, &p_input->input );
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    /* Delete slave */
    for( i = 0; i < p_input->i_slave; i++ )
    {
        InputSourceClean( p_input, p_input->slave[i] );
        free( p_input->slave[i] );
    }
    if( p_input->slave ) free( p_input->slave );
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    /* Unload all modules */
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    if( p_input->p_es_out )
        input_EsOutDelete( p_input->p_es_out );
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    /* Close optional stream output instance */
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    if( p_input->p_sout )
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    {
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        vlc_object_t *p_pl =
            vlc_object_find( p_input, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
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        vlc_value_t keep;

        if( var_Get( p_input, "sout-keep", &keep ) >= 0 && keep.b_bool && p_pl )
        {
            /* attach sout to the playlist */
            msg_Warn( p_input, "keeping sout" );
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            vlc_object_detach( p_input->p_sout );
            vlc_object_attach( p_input->p_sout, p_pl );
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        }
        else
        {
            msg_Warn( p_input, "destroying sout" );
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            sout_DeleteInstance( p_input->p_sout );
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        }
        if( p_pl )
            vlc_object_release( p_pl );
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    }

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    /* Tell we're dead */
    p_input->b_dead = VLC_TRUE;
}
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/*****************************************************************************
 * Control
 *****************************************************************************/
static inline int ControlPopNoLock( input_thread_t *p_input,
                                    int *pi_type, vlc_value_t *p_val )
{
    if( p_input->i_control <= 0 )
    {
        return VLC_EGENERIC;
    }
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    *pi_type = p_input->control[0].i_type;
    *p_val   = p_input->control[0].val;
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    p_input->i_control--;
    if( p_input->i_control > 0 )
    {
        int i;
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        for( i = 0; i < p_input->i_control; i++ )
        {
            p_input->control[i].i_type = p_input->control[i+1].i_type;
            p_input->control[i].val    = p_input->control[i+1].val;
        }
    }
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    return VLC_SUCCESS;
}
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static void ControlReduce( input_thread_t *p_input )
{
    int i;
    for( i = 1; i < p_input->i_control; i++ )
    {
        const int i_lt = p_input->control[i-1].i_type;
        const int i_ct = p_input->control[i].i_type;

        /* XXX We can't merge INPUT_CONTROL_SET_ES */
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        msg_Dbg( p_input, "[%d/%d] l=%d c=%d", i, p_input->i_control,
                 i_lt, i_ct );
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        if( i_lt == i_ct &&
            ( i_ct == INPUT_CONTROL_SET_STATE ||
              i_ct == INPUT_CONTROL_SET_RATE ||
              i_ct == INPUT_CONTROL_SET_POSITION ||
              i_ct == INPUT_CONTROL_SET_TIME ||
              i_ct == INPUT_CONTROL_SET_PROGRAM ||
              i_ct == INPUT_CONTROL_SET_TITLE ||
              i_ct == INPUT_CONTROL_SET_SEEKPOINT ||
              i_ct == INPUT_CONTROL_SET_BOOKMARK ) )
        {
            int j;
            msg_Dbg( p_input, "merged at %d", i );
            /* Remove the i-1 */
            for( j = i; j <  p_input->i_control; j++ )
                p_input->control[j-1] = p_input->control[j];
            p_input->i_control--;
        }
        else
        {
            /* TODO but that's not that important
                - merge SET_X with SET_X_CMD
                - remove SET_SEEKPOINT/SET_POSITION/SET_TIME before a SET_TITLE
                - remove SET_SEEKPOINT/SET_POSITION/SET_TIME before another among them
                - ?
                */
        }
    }
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}
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static vlc_bool_t Control( input_thread_t *p_input, int i_type,
                           vlc_value_t val )
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{
    vlc_bool_t b_force_update = VLC_FALSE;

    switch( i_type )
    {
        case INPUT_CONTROL_SET_DIE:
            msg_Dbg( p_input, "control: INPUT_CONTROL_SET_DIE proceed" );
            /* Mark all submodules to die */
            if( p_input->input.p_access )
                p_input->input.p_access->b_die = VLC_TRUE;
            if( p_input->input.p_stream )
                p_input->input.p_stream->b_die = VLC_TRUE;
            p_input->input.p_demux->b_die = VLC_TRUE;

            p_input->b_die = VLC_TRUE;
            break;

        case INPUT_CONTROL_SET_POSITION:
        case INPUT_CONTROL_SET_POSITION_OFFSET:
        {
            double f_pos;
            if( i_type == INPUT_CONTROL_SET_POSITION )
            {
                f_pos = val.f_float;
            }
            else
            {
                /* Should not fail */
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                demux2_Control( p_input->input.p_demux,
                                DEMUX_GET_POSITION, &f_pos );
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                f_pos += val.f_float;
            }
            if( f_pos < 0.0 ) f_pos = 0.0;
            if( f_pos > 1.0 ) f_pos = 1.0;
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            if( demux2_Control( p_input->input.p_demux, DEMUX_SET_POSITION,
                                f_pos ) )
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            {
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                msg_Err( p_input, "INPUT_CONTROL_SET_POSITION(_OFFSET) "
                         "%2.1f%% failed", f_pos * 100 );
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            }
            else
            {
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                if( p_input->i_slave > 0 )
                    SlaveSeek( p_input );

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                input_EsOutDiscontinuity( p_input->p_es_out, VLC_FALSE );
                es_out_Control( p_input->p_es_out, ES_OUT_RESET_PCR );
                b_force_update = VLC_TRUE;
            }
            break;
        }

        case INPUT_CONTROL_SET_TIME:
        case INPUT_CONTROL_SET_TIME_OFFSET:
        {
            int64_t i_time;
            int i_ret;

            if( i_type == INPUT_CONTROL_SET_TIME )
            {
                i_time = val.i_time;
            }
            else
            {
                /* Should not fail */
                demux2_Control( p_input->input.p_demux,
                                DEMUX_GET_TIME, &i_time );
                i_time += val.i_time;
            }
            if( i_time < 0 ) i_time = 0;
            i_ret = demux2_Control( p_input->input.p_demux,
                                    DEMUX_SET_TIME, i_time );
            if( i_ret )
            {
                int64_t i_length;
                /* Emulate it with a SET_POS */

                demux2_Control( p_input->input.p_demux,
                                DEMUX_GET_LENGTH, &i_length );
                if( i_length > 0 )
                {
                    double f_pos = (double)i_time / (double)i_length;
                    i_ret = demux2_Control( p_input->input.p_demux,
                                            DEMUX_SET_POSITION, f_pos );
                }
            }
            if( i_ret )
            {
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                msg_Err( p_input, "INPUT_CONTROL_SET_TIME(_OFFSET) "I64Fd
                         " failed", i_time );
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            }
            else
            {
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                if( p_input->i_slave > 0 )
                    SlaveSeek( p_input );

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