/*****************************************************************************
 * input.c: input thread
 *****************************************************************************
 * Copyright (C) 1998-2007 VLC authors and VideoLAN
 *
 * Authors: Christophe Massiot <massiot@via.ecp.fr>
 *          Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_arrays.h>
#include <vlc_decoder.h>

#include <limits.h>
#include <assert.h>
#include <sys/stat.h>

#include "input_internal.h"
#include "event.h"
#include "es_out.h"
#include "demux.h"
#include "item.h"
#include "resource.h"
#include "stream.h"
#include "stream_output/stream_output.h"

#include <vlc_aout.h>
#include <vlc_dialog.h>
#include <vlc_url.h>
#include <vlc_charset.h>
#include <vlc_fs.h>
#include <vlc_strings.h>
#include <vlc_modules.h>
#include <vlc_stream.h>
#include <vlc_stream_extractor.h>
#include <vlc_renderer_discovery.h>
#include <vlc_hash.h>

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static  void *Run( void * );
static  void *Preparse( void * );

static void             Destroy ( input_thread_t *p_input );
static  int             Init    ( input_thread_t *p_input );
static void             End     ( input_thread_t *p_input );
static void             MainLoop( input_thread_t *p_input, bool b_interactive );

static inline int ControlPop( input_thread_t *, int *, input_control_param_t *, vlc_tick_t i_deadline, bool b_postpone_seek );
static void       ControlRelease( int i_type, const input_control_param_t *p_param );
static bool       ControlIsSeekRequest( int i_type );
static bool       Control( input_thread_t *, int, input_control_param_t );
static void       ControlPause( input_thread_t *, vlc_tick_t );

static int  UpdateTitleSeekpointFromDemux( input_thread_t * );
static void UpdateGenericFromDemux( input_thread_t * );
static void UpdateTitleListfromDemux( input_thread_t * );

static void MRLSections( const char *, int *, int *, int *, int *);

static input_source_t *InputSourceNew( const char *psz_mrl );
static int InputSourceInit( input_source_t *in, input_thread_t *p_input,
                            const char *psz_mrl,
                            const char *psz_forced_demux, bool b_in_can_fail );
static void InputSourceDestroy( input_source_t * );
static void InputSourceMeta( input_thread_t *, input_source_t *, vlc_meta_t * );

/* TODO */
//static void InputGetAttachments( input_thread_t *, input_source_t * );
static void SlaveDemux( input_thread_t *p_input );
static void SlaveSeek( input_thread_t *p_input );

static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta );
static void InputUpdateMeta( input_thread_t *p_input, demux_t *p_demux );
static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char **psz_access, const char *mrl );

static void AppendAttachment(input_thread_t* p_input,
                              int i_new, input_attachment_t **pp_new);

#define SLAVE_ADD_NOFLAG    0
#define SLAVE_ADD_FORCED    (1<<0)
#define SLAVE_ADD_CANFAIL   (1<<1)
#define SLAVE_ADD_SET_TIME  (1<<2)

static int input_SlaveSourceAdd( input_thread_t *, enum slave_type,
                                 const char *, unsigned );
static char *input_SubtitleFile2Uri( input_thread_t *, const char * );
static void input_ChangeState( input_thread_t *p_input, int i_state, vlc_tick_t ); /* TODO fix name */

/**
 * Start a input_thread_t created by input_Create.
 *
 * You must not start an already running input_thread_t.
 *
 * \param p_input the input thread to start
 */
int input_Start( input_thread_t *p_input )
{
    input_thread_private_t *priv = input_priv(p_input);
    void *(*func)(void *) = Run;

    if( priv->type == INPUT_TYPE_PREPARSING )
        func = Preparse;

    assert( !priv->is_running );
    /* Create thread and wait for its readiness. */
    priv->is_running = !vlc_clone( &priv->thread, func, priv );
    if( !priv->is_running )
    {
        msg_Err( p_input, "cannot create input thread" );
        return VLC_EGENERIC;
    }
    return VLC_SUCCESS;
}

/**
 * Request a running input thread to stop and die
 *
 * \param p_input the input thread to stop
 */
void input_Stop( input_thread_t *p_input )
{
    input_thread_private_t *sys = input_priv(p_input);

    vlc_mutex_lock( &sys->lock_control );
    /* Discard all pending controls */
    for( size_t i = 0; i < sys->i_control; i++ )
    {
        input_control_t *ctrl = &sys->control[i];
        ControlRelease( ctrl->i_type, &ctrl->param );
    }
    sys->i_control = 0;
    sys->is_stopped = true;
    vlc_cond_signal( &sys->wait_control );
    vlc_mutex_unlock( &sys->lock_control );
    vlc_interrupt_kill( &sys->interrupt );
}

/**
 * Close an input
 *
 * It does not call input_Stop itself.
 */
void input_Close( input_thread_t *p_input )
{
    if( input_priv(p_input)->is_running )
        vlc_join( input_priv(p_input)->thread, NULL );
    vlc_interrupt_deinit( &input_priv(p_input)->interrupt );
    Destroy(p_input);
}

void input_SetTime( input_thread_t *p_input, vlc_tick_t i_time, bool b_fast )
{
    input_control_param_t param;

    param.time.i_val = i_time;
    param.time.b_fast_seek = b_fast;
    input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &param );
}

void input_SetPosition( input_thread_t *p_input, double f_position, bool b_fast )
{
    input_control_param_t param;

    param.pos.f_val = f_position;
    param.pos.b_fast_seek = b_fast;
    input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &param );
}

/**
 * Get the item from an input thread
 * FIXME it does not increase ref count of the item.
 * if it is used after p_input is destroyed nothing prevent it from
 * being freed.
 */
input_item_t *input_GetItem( input_thread_t *p_input )
{
    assert( p_input != NULL );
    return input_priv(p_input)->p_item;
}

#undef input_Create
input_thread_t *input_Create( vlc_object_t *p_parent,
                              input_thread_events_cb events_cb, void *events_data,
                              input_item_t *p_item, enum input_type type,
                              input_resource_t *p_resource,
                              vlc_renderer_item_t *p_renderer )
{
    /* Allocate descriptor */
    input_thread_private_t *priv;

    priv = vlc_custom_create( p_parent, sizeof( *priv ), "input" );
    if( unlikely(priv == NULL) )
        return NULL;

    priv->master = InputSourceNew( NULL );
    if( !priv->master )
    {
        free( priv );
        return NULL;
    }

    input_thread_t *p_input = &priv->input;

    char * psz_name = input_item_GetName( p_item );
    const char *type_str;
    switch (type)
    {
        case INPUT_TYPE_PREPARSING:
            type_str = "preparsing ";
            break;
        case INPUT_TYPE_THUMBNAILING:
            type_str = "thumbnailing ";
            break;
        default:
            type_str = "";
            break;
    }
    msg_Dbg( p_input, "Creating an input for %s'%s'", type_str, psz_name);
    free( psz_name );

    /* Parse input options */
    input_item_ApplyOptions( VLC_OBJECT(p_input), p_item );

    /* Init Common fields */
    priv->events_cb = events_cb;
    priv->events_data = events_data;
    priv->type = type;
    priv->i_start = 0;
    priv->i_stop  = 0;
    priv->i_title_offset = input_priv(p_input)->i_seekpoint_offset = 0;
    priv->i_state = INIT_S;
    priv->is_running = false;
    priv->is_stopped = false;
    priv->b_recording = false;
    priv->rate = 1.f;
    TAB_INIT( priv->i_attachment, priv->attachment );
    priv->p_sout   = NULL;
    priv->b_out_pace_control = priv->type == INPUT_TYPE_THUMBNAILING;
    priv->p_renderer = p_renderer && priv->type != INPUT_TYPE_PREPARSING ?
                vlc_renderer_item_hold( p_renderer ) : NULL;

    priv->viewpoint_changed = false;
    /* Fetch the viewpoint from the mediaplayer or the playlist if any */
    vlc_viewpoint_t *p_viewpoint = var_InheritAddress( p_input, "viewpoint" );
    if (p_viewpoint != NULL)
        priv->viewpoint = *p_viewpoint;
    else
        vlc_viewpoint_init( &priv->viewpoint );

    input_item_Hold( p_item ); /* Released in Destructor() */
    priv->p_item = p_item;

    /* Init Input fields */
    vlc_mutex_lock( &p_item->lock );

    if( !p_item->p_stats )
        p_item->p_stats = calloc( 1, sizeof(*p_item->p_stats) );

    /* setup the preparse depth of the item
     * if we are preparsing, use the i_preparse_depth of the parent item */
    if( priv->type == INPUT_TYPE_PREPARSING
     || priv->type == INPUT_TYPE_THUMBNAILING )
    {
        p_input->obj.logger = NULL;
        p_input->obj.no_interact = true;
    }
    else
    {
        char *psz_rec = var_InheritString( p_parent, "recursive" );

        if( psz_rec != NULL )
        {
            if ( !strcasecmp( psz_rec, "none" ) )
                p_item->i_preparse_depth = 0;
            else if ( !strcasecmp( psz_rec, "collapse" ) )
                p_item->i_preparse_depth = 1;
            else
                p_item->i_preparse_depth = -1; /* default is expand */
            free (psz_rec);
        } else
            p_item->i_preparse_depth = -1;
    }

    /* Make sure the interaction option is honored */
    if( !var_InheritBool( p_input, "interact" ) )
        p_input->obj.no_interact = true;
    else if( p_item->b_preparse_interact )
    {
        /* If true, this item was asked explicitly to interact with the user
         * (via libvlc_MetadataRequest). Sub items created from this input won't
         * have this flag and won't interact with the user */
        p_input->obj.no_interact = false;
    }

    vlc_mutex_unlock( &p_item->lock );

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

    /* */
    if( p_resource )
        priv->p_resource = input_resource_Hold( p_resource );
    else
        priv->p_resource = input_resource_New( VLC_OBJECT( p_input ) );
    input_resource_SetInput( priv->p_resource, p_input );

    /* Init control buffer */
    vlc_mutex_init( &priv->lock_control );
    vlc_cond_init( &priv->wait_control );
    priv->i_control = 0;
    vlc_interrupt_init(&priv->interrupt);

    /* Create Object Variables for private use only */
    input_ConfigVarInit( p_input );

    priv->b_low_delay = var_InheritBool( p_input, "low-delay" );
    priv->i_jitter_max = VLC_TICK_FROM_MS(var_InheritInteger( p_input, "clock-jitter" ));

    /* Remove 'Now playing' info as it is probably outdated */
    input_item_SetNowPlaying( p_item, NULL );
    input_item_SetESNowPlaying( p_item, NULL );

    /* */
    if( priv->type != INPUT_TYPE_PREPARSING && var_InheritBool( p_input, "stats" ) )
        priv->stats = input_stats_Create();
    else
        priv->stats = NULL;

    priv->p_es_out_display = input_EsOutNew( p_input, priv->master, priv->rate,
                                             priv->type );
    if( !priv->p_es_out_display )
    {
        Destroy( p_input );
        return NULL;
    }
    priv->p_es_out = NULL;

    return p_input;
}

static void Destroy(input_thread_t *input)
{
    input_thread_private_t *priv = input_priv(input);

#ifndef NDEBUG
    char *name = input_item_GetName(priv->p_item);
    msg_Dbg(input, "destroying input for '%s'", name);
    free(name);
#endif

    if (priv->p_renderer != NULL)
        vlc_renderer_item_release(priv->p_renderer);
    if (priv->p_es_out_display != NULL)
        es_out_Delete(priv->p_es_out_display);

    if (priv->p_resource != NULL)
        input_resource_Release(priv->p_resource);

    input_source_Release(priv->master);
    input_item_Release(priv->p_item);

    if (priv->stats != NULL)
        input_stats_Destroy(priv->stats);

    for (size_t i = 0; i < priv->i_control; i++)
    {
        input_control_t *ctrl = &priv->control[i];

        ControlRelease(ctrl->i_type, &ctrl->param);
    }

    vlc_object_delete(VLC_OBJECT(input));
}

/*****************************************************************************
 * Run: main thread loop
 * This is the "normal" thread that spawns the input processing chain,
 * reads the stream, cleans up and waits
 *****************************************************************************/
static void *Run( void *data )
{
    input_thread_private_t *priv = data;
    input_thread_t *p_input = &priv->input;

    vlc_thread_set_name("vlc-input");

    vlc_interrupt_set(&priv->interrupt);

    if( !Init( p_input ) )
    {
        MainLoop( p_input, true ); /* FIXME it can be wrong (like with VLM) */

        /* Clean up */
        End( p_input );
    }

    input_SendEventDead( p_input );
    return NULL;
}

static void *Preparse( void *data )
{
    input_thread_private_t *priv = data;
    input_thread_t *p_input = &priv->input;

    vlc_thread_set_name("vlc-preparse");

    vlc_interrupt_set(&priv->interrupt);

    if( !Init( p_input ) )
    {   /* if the demux is a playlist, call Mainloop that will call
         * demux_Demux in order to fetch sub items */
        if ( input_item_ShouldPreparseSubItems( priv->p_item )
         && priv->master->p_demux->pf_readdir != NULL )
            MainLoop( p_input, false );
        End( p_input );
    }

    input_SendEventDead( p_input );
    return NULL;
}

bool input_Stopped( input_thread_t *input )
{
    input_thread_private_t *sys = input_priv(input);
    bool ret;

    vlc_mutex_lock( &sys->lock_control );
    ret = sys->is_stopped;
    vlc_mutex_unlock( &sys->lock_control );
    return ret;
}

/*****************************************************************************
 * Main loop: Fill buffers from access, and demux
 *****************************************************************************/

/**
 * MainLoopDemux
 * It asks the demuxer to demux some data
 */
static void MainLoopDemux( input_thread_t *p_input, bool *pb_changed )
{
    input_thread_private_t* p_priv = input_priv(p_input);
    demux_t *p_demux = p_priv->master->p_demux;
    int i_ret = VLC_DEMUXER_SUCCESS;

    *pb_changed = false;

    if( p_priv->i_stop > 0 )
    {
        vlc_tick_t i_time;
        if( demux_Control( p_demux, DEMUX_GET_TIME, &i_time ) )
            i_time = VLC_TICK_INVALID;

        if( p_priv->i_stop <= i_time )
            i_ret = VLC_DEMUXER_EOF;
    }

    if( i_ret == VLC_DEMUXER_SUCCESS )
        i_ret = demux_Demux( p_demux );

    i_ret = i_ret > 0 ? VLC_DEMUXER_SUCCESS : ( i_ret < 0 ? VLC_DEMUXER_EGENERIC : VLC_DEMUXER_EOF);

    if( i_ret == VLC_DEMUXER_SUCCESS )
    {
        if( demux_TestAndClearFlags( p_demux, INPUT_UPDATE_TITLE_LIST ) )
            UpdateTitleListfromDemux( p_input );

        if( p_priv->master->b_title_demux )
        {
            i_ret = UpdateTitleSeekpointFromDemux( p_input );
            *pb_changed = true;
        }

        UpdateGenericFromDemux( p_input );
    }

    if( i_ret == VLC_DEMUXER_EOF )
    {
        msg_Dbg( p_input, "EOF reached" );
        p_priv->master->b_eof = true;
        es_out_Eos(p_priv->p_es_out);
    }
    else if( i_ret == VLC_DEMUXER_EGENERIC )
    {
        input_ChangeState( p_input, ERROR_S, VLC_TICK_INVALID );
    }
    else if( p_priv->i_slave > 0 )
        SlaveDemux( p_input );
}

static int MainLoopTryRepeat( input_thread_t *p_input )
{
    int i_repeat = var_GetInteger( p_input, "input-repeat" );
    if( i_repeat <= 0 )
        return VLC_EGENERIC;

    vlc_value_t val;

    msg_Dbg( p_input, "repeating the same input (%d)", i_repeat );
    if( i_repeat > 0 )
    {
        i_repeat--;
        var_SetInteger( p_input, "input-repeat", i_repeat );
    }

    input_thread_private_t *priv = input_priv(p_input);
    /* Seek to start title/seekpoint */
    val.i_int = priv->master->i_title_start - priv->master->i_title_offset;
    if( val.i_int < 0 || val.i_int >= priv->master->i_title )
        val.i_int = 0;
    input_ControlPushHelper( p_input,
                       INPUT_CONTROL_SET_TITLE, &val );

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

    /* Seek to start position */
    if( priv->i_start > 0 )
        input_SetTime( p_input, priv->i_start, false );
    else
        input_SetPosition( p_input, 0.0f, false );

    return VLC_SUCCESS;
}

static vlc_tick_t InputSourceGetLength( input_source_t *source, input_item_t *item )
{
    vlc_tick_t length;
    if( demux_Control( source->p_demux, DEMUX_GET_LENGTH, &length ) )
        length = 0;
    if( length == 0 && item != NULL )
        length = input_item_GetDuration( item );

    return length;
}

static void InputSourceStatistics( input_source_t *source, input_item_t *item,
                                   es_out_t *out )
{
    double f_position = 0.0;
    vlc_tick_t i_time;
    vlc_tick_t i_length;
    vlc_tick_t i_normal_time;

    /* update input status variables */
    if( demux_Control( source->p_demux,
                       DEMUX_GET_POSITION, &f_position ) )
        f_position = 0.0;

    if( demux_Control( source->p_demux, DEMUX_GET_TIME, &i_time ) )
        i_time = VLC_TICK_INVALID;

    i_length = InputSourceGetLength( source, item );

    /* In case of failure (not implemented or in case of seek), use VLC_TICK_0. */
    if (demux_Control( source->p_demux, DEMUX_GET_NORMAL_TIME, &i_normal_time ) != VLC_SUCCESS)
        i_normal_time = VLC_TICK_0;

    es_out_SetTimes( out, f_position, i_time, i_normal_time, i_length );
}

/**
 * Update timing infos and statistics.
 */
static void MainLoopStatistics( input_thread_t *p_input )
{
    input_thread_private_t *priv = input_priv(p_input);

    InputSourceStatistics( priv->master, priv->p_item, priv->p_es_out );

    for( int i = 0; i < priv->i_slave; i++ )
    {
        input_source_t *in = priv->slave[i];
        InputSourceStatistics( in, NULL, in->p_slave_es_out );
    }

    if (priv->stats != NULL)
    {
        struct input_stats_t new_stats;
        input_stats_Compute(priv->stats, &new_stats);

        vlc_mutex_lock(&priv->p_item->lock);
        *priv->p_item->p_stats = new_stats;
        vlc_mutex_unlock(&priv->p_item->lock);

        input_SendEventStatistics(p_input, &new_stats);
    }
}

/**
 * MainLoop
 * The main input loop.
 */
static void MainLoop( input_thread_t *p_input, bool b_interactive )
{
    vlc_tick_t i_intf_update = 0;
    vlc_tick_t i_last_seek_mdate = 0;

    if( b_interactive && var_InheritBool( p_input, "start-paused" ) )
        ControlPause( p_input, vlc_tick_now() );

    bool b_pause_after_eof = b_interactive &&
                           var_InheritBool( p_input, "play-and-pause" );
    bool b_paused_at_eof = false;

    demux_t *p_demux = input_priv(p_input)->master->p_demux;
    const bool b_can_demux = p_demux->ops != NULL ?
        (p_demux->ops->demux.demux != NULL || p_demux->ops->demux.readdir != NULL) :
        (p_demux->pf_demux != NULL || p_demux->pf_readdir != NULL);

    while( !input_Stopped( p_input ) && input_priv(p_input)->i_state != ERROR_S )
    {
        vlc_tick_t i_wakeup = -1;
        bool b_paused = input_priv(p_input)->i_state == PAUSE_S;
        /* FIXME if input_priv(p_input)->i_state == PAUSE_S the access/access_demux
         * is paused -> this may cause problem with some of them
         * The same problem can be seen when seeking while paused */
        if( b_paused )
            b_paused = !es_out_GetBuffering( input_priv(p_input)->p_es_out )
                    || input_priv(p_input)->master->b_eof;

        if( !b_paused )
        {
            if( !input_priv(p_input)->master->b_eof )
            {
                bool b_force_update = false;

                MainLoopDemux( p_input, &b_force_update );

                if( b_can_demux )
                    i_wakeup = es_out_GetWakeup( input_priv(p_input)->p_es_out );
                if( b_force_update )
                    i_intf_update = 0;

                b_paused_at_eof = false;
            }
            else if( !es_out_GetEmpty( input_priv(p_input)->p_es_out ) )
            {
                msg_Dbg( p_input, "waiting decoder fifos to empty" );
                i_wakeup = vlc_tick_now() + INPUT_IDLE_SLEEP;
            }
            /* Pause after eof only if the input is pausable.
             * This way we won't trigger timeshifting for nothing */
            else if( b_pause_after_eof && input_priv(p_input)->master->b_can_pause )
            {
                if( b_paused_at_eof )
                    break;

                input_control_param_t param;
                param.val.i_int = PAUSE_S;

                msg_Dbg( p_input, "pausing at EOF (pause after each)");
                Control( p_input, INPUT_CONTROL_SET_STATE, param );

                b_paused = true;
                b_paused_at_eof = true;
            }
            else
            {
                if( MainLoopTryRepeat( p_input ) )
                    break;
            }

            /* Update interface and statistics */
            vlc_tick_t now = vlc_tick_now();
            if( now >= i_intf_update )
            {
                MainLoopStatistics( p_input );
                i_intf_update = now + VLC_TICK_FROM_MS(250);
            }
        }

        /* Handle control */
        for( ;; )
        {
            vlc_tick_t i_deadline = i_wakeup;

            /* Postpone seeking until ES buffering is complete or at most
             * 125 ms. */
            bool b_postpone = es_out_GetBuffering( input_priv(p_input)->p_es_out )
                            && !input_priv(p_input)->master->b_eof;
            if( b_postpone )
            {
                vlc_tick_t now = vlc_tick_now();

                /* Recheck ES buffer level every 20 ms when seeking */
                if( now < i_last_seek_mdate + VLC_TICK_FROM_MS(125)
                 && (i_deadline < 0 || i_deadline > now + VLC_TICK_FROM_MS(20)) )
                    i_deadline = now + VLC_TICK_FROM_MS(20);
                else
                    b_postpone = false;
            }

            int i_type;
            input_control_param_t param;

            if( ControlPop( p_input, &i_type, &param, i_deadline, b_postpone ) )
            {
                if( b_postpone )
                    continue;
                break; /* Wake-up time reached */
            }

#ifndef NDEBUG
            msg_Dbg( p_input, "control type=%d", i_type );
#endif
            if( Control( p_input, i_type, param ) )
            {
                if( ControlIsSeekRequest( i_type ) )
                    i_last_seek_mdate = vlc_tick_now();
                i_intf_update = 0;
            }

            /* Update the wakeup time */
            if( i_wakeup != 0 )
                i_wakeup = es_out_GetWakeup( input_priv(p_input)->p_es_out );
        }
    }
}

static int InitSout( input_thread_t * p_input )
{
    input_thread_private_t *priv = input_priv(p_input);

    if( priv->type == INPUT_TYPE_PREPARSING )
        return VLC_SUCCESS;

    /* Find a usable sout and attach it to p_input */
    char *psz = var_GetNonEmptyString( p_input, "sout" );
    if( priv->p_renderer )
    {
        /* Keep sout if it comes from a renderer and if the user didn't touch
         * the sout config */
        bool keep_sout = psz == NULL;
        free(psz);

        const char *psz_renderer_sout = vlc_renderer_item_sout( priv->p_renderer );
        if( asprintf( &psz, "#%s", psz_renderer_sout ) < 0 )
            return VLC_ENOMEM;
        if( keep_sout )
            var_SetBool( p_input, "sout-keep", true );
    }
    if( psz && strncasecmp( priv->p_item->psz_uri, "vlc:", 4 ) )
    {
        priv->p_sout  = input_resource_RequestSout( priv->p_resource, psz );
        if( priv->p_sout == NULL )
        {
            input_ChangeState( p_input, ERROR_S, VLC_TICK_INVALID );
            msg_Err( p_input, "cannot start stream output instance, " \
                              "aborting" );
            free( psz );
            return VLC_EGENERIC;
        }
    }
    else
    {
        input_resource_TerminateSout( priv->p_resource );
    }
    free( psz );

    return VLC_SUCCESS;
}

static void InitProperties( input_thread_t *input )
{
    input_thread_private_t *priv = input_priv(input);
    input_source_t *master = priv->master;
    assert(master);

    int capabilities = 0;
    bool b_can_seek;

    if( demux_Control( master->p_demux, DEMUX_CAN_SEEK, &b_can_seek ) )
        b_can_seek = false;
    if( b_can_seek )
        capabilities |= VLC_INPUT_CAPABILITIES_SEEKABLE;

    if( master->b_can_pause || !master->b_can_pace_control )
        capabilities |= VLC_INPUT_CAPABILITIES_PAUSEABLE;
    if( !master->b_can_pace_control || master->b_can_rate_control )
        capabilities |= VLC_INPUT_CAPABILITIES_CHANGE_RATE;
    if( !master->b_rescale_ts && !master->b_can_pace_control && master->b_can_rate_control )
        capabilities |= VLC_INPUT_CAPABILITIES_REWINDABLE;

    input_SendEventCapabilities( input, capabilities );

    int i_attachment;
    input_attachment_t **attachment;
    if( !demux_Control( master->p_demux, DEMUX_GET_ATTACHMENTS,
                        &attachment, &i_attachment ) )
    {
        vlc_mutex_lock( &priv->p_item->lock );
        AppendAttachment( input, i_attachment, attachment );
        vlc_mutex_unlock( &priv->p_item->lock );
    }

    int input_type;
    if( !demux_Control( master->p_demux, DEMUX_GET_TYPE, &input_type ) )
    {
        vlc_mutex_lock( &priv->p_item->lock );
        priv->p_item->i_type = input_type;
        vlc_mutex_unlock( &priv->p_item->lock );
    }
}

static void InitTitle( input_thread_t * p_input, bool had_titles )
{
    input_thread_private_t *priv = input_priv(p_input);
    input_source_t *p_master = priv->master;

    if( priv->type == INPUT_TYPE_PREPARSING )
        return;

    vlc_mutex_lock( &priv->p_item->lock );
    priv->i_title_offset = p_master->i_title_offset;
    priv->i_seekpoint_offset = p_master->i_seekpoint_offset;
    vlc_mutex_unlock( &priv->p_item->lock );

    /* Send event only if the count is valid or if titles are gone */
    if (had_titles || p_master->i_title > 0)
        input_SendEventTitle( p_input, &(struct vlc_input_event_title) {
            .action = VLC_INPUT_TITLE_NEW_LIST,
            .list = {
                .array = p_master->title,
                .count = p_master->i_title,
            },
        });
}

static void FillFileStatsIfAny( input_thread_t * p_input )
{
    input_thread_private_t *priv = input_priv( p_input );
    input_source_t *master = priv->master;
    stream_t *stream_filters = master->p_demux->s;

    if( stream_filters == NULL )
        return;

    uint64_t size;
    
    if( vlc_stream_GetSize(stream_filters, &size) == VLC_SUCCESS )
        input_item_AddStat( priv->p_item, "size", size );

    uint64_t mtime;
    if( vlc_stream_GetMTime(stream_filters, &mtime) == VLC_SUCCESS )
        input_item_AddStat( priv->p_item, "mtime", mtime );
}

static void StartTitle( input_thread_t * p_input )
{
    input_thread_private_t *priv = input_priv(p_input);
    vlc_value_t val;

    /* Start title/chapter */
    val.i_int = priv->master->i_title_start - priv->master->i_title_offset;
    if( val.i_int > 0 && val.i_int < priv->master->i_title )
        input_ControlPushHelper( p_input, INPUT_CONTROL_SET_TITLE, &val );

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

    /* Start/stop/run time */
    priv->i_start = llroundl(CLOCK_FREQ *
                             (double) var_GetFloat( p_input, "start-time" ));
    priv->i_stop  = llroundl(CLOCK_FREQ *
                             (double) var_GetFloat( p_input, "stop-time" ));
    if( priv->i_stop <= 0 )
    {
        priv->i_stop = llroundl(CLOCK_FREQ *
                                (double) var_GetFloat( p_input, "run-time" ));
        if( priv->i_stop < 0 )
        {
            msg_Warn( p_input, "invalid run-time ignored" );
            priv->i_stop = 0;
        }
        else
            priv->i_stop += priv->i_start;
    }

    if( priv->i_start > 0 )
    {
        msg_Dbg( p_input, "starting at time: %"PRId64"s",
                 SEC_FROM_VLC_TICK(priv->i_start) );

        input_SetTime( p_input, priv->i_start, false );
    }
    if( priv->i_stop > 0 && priv->i_stop <= priv->i_start )
    {
        msg_Warn( p_input, "invalid stop-time ignored" );
        priv->i_stop = 0;
    }
}

static int SlaveCompare(const void *a, const void *b)
{
    const input_item_slave_t *p_slave0 = *((const input_item_slave_t **) a);
    const input_item_slave_t *p_slave1 = *((const input_item_slave_t **) b);

    if( p_slave0 == NULL || p_slave1 == NULL )
    {
        /* Put NULL (or rejected) subs at the end */
        return p_slave0 == NULL ? 1 : p_slave1 == NULL ? -1 : 0;
    }

    if( p_slave0->i_priority > p_slave1->i_priority )
        return -1;

    if( p_slave0->i_priority < p_slave1->i_priority )
        return 1;

    return 0;
}

static bool SlaveExists( input_item_slave_t **pp_slaves, int i_slaves,
                         const char *psz_uri)
{
    for( int i = 0; i < i_slaves; i++ )
    {
        if( pp_slaves[i] != NULL
         && !strcmp( pp_slaves[i]->psz_uri, psz_uri ) )
            return true;
    }
    return false;
}

static void RequestSubRate( input_thread_t *p_input, float f_slave_fps )
{
    input_thread_private_t *priv = input_priv(p_input);
    const float f_fps = input_priv(p_input)->master->f_fps;
    if( f_fps > 1.f && f_slave_fps > 1.f )
        priv->slave_subs_rate = f_fps / f_slave_fps;
    else if ( priv->slave_subs_rate != 0 )
        priv->slave_subs_rate = 1.f;
}

static void SetSubtitlesOptions( input_thread_t *p_input )
{
    /* Get fps and set it if not already set */
    const float f_fps = input_priv(p_input)->master->f_fps;
    if( f_fps > 1.f )
    {
        var_SetFloat( p_input, "sub-original-fps", f_fps );
        RequestSubRate( p_input, var_InheritFloat( p_input, "sub-fps" ) );
    }
}

static enum slave_type DeduceSlaveType( input_thread_t *p_input,
                                        const char *psz_uri )
{
    vlc_url_t parsed_uri;
    if( vlc_UrlParse( &parsed_uri, psz_uri ) != VLC_SUCCESS ||
        parsed_uri.psz_path == NULL )
    {
        goto fail;
    }

    enum slave_type i_type;
    if( !input_item_slave_GetType( parsed_uri.psz_path, &i_type ) )
        goto fail;

    vlc_UrlClean( &parsed_uri );
    return i_type;

fail:
    msg_Dbg( p_input, "Can't deduce slave type of \"%s\" with file extension.",
             psz_uri );
    vlc_UrlClean( &parsed_uri );
    return SLAVE_TYPE_GENERIC;
}

static void GetVarSlaves( input_thread_t *p_input,
                          input_item_slave_t ***ppp_slaves, int *p_slaves )
{
    char *psz = var_GetNonEmptyString( p_input, "input-slave" );
    if( !psz )
        return;

    input_item_slave_t **pp_slaves = *ppp_slaves;
    int i_slaves = *p_slaves;

    char *psz_org = psz;
    while( psz && *psz )
    {
        while( *psz == ' ' || *psz == '#' )
            psz++;

        char *psz_delim = strchr( psz, '#' );
        if( psz_delim )
            *psz_delim++ = '\0';

        if( *psz == 0 )
            break;

        char *uri = strstr(psz, "://")
                                   ? strdup( psz ) : vlc_path2uri( psz, NULL );
        psz = psz_delim;
        if( uri == NULL )
            continue;

        const enum slave_type i_type = DeduceSlaveType( p_input, uri );
        input_item_slave_t *p_slave =
            input_item_slave_New( uri, i_type, SLAVE_PRIORITY_USER );
        free( uri );

        if( unlikely( p_slave == NULL ) )
            break;
        TAB_APPEND(i_slaves, pp_slaves, p_slave);
    }
    free( psz_org );

    *ppp_slaves = pp_slaves; /* in case of realloc */
    *p_slaves = i_slaves;
}

static void LoadSlaves( input_thread_t *p_input )
{
    input_item_slave_t **pp_slaves;
    int i_slaves;
    TAB_INIT( i_slaves, pp_slaves );

    /* Look for and add slaves */

    char *psz_subtitle = var_GetNonEmptyString( p_input, "sub-file" );
    if( psz_subtitle != NULL )
    {
        msg_Dbg( p_input, "forced subtitle: %s", psz_subtitle );
        char *psz_uri = input_SubtitleFile2Uri( p_input, psz_subtitle );
        free( psz_subtitle );
        psz_subtitle = NULL;
        if( psz_uri != NULL )
        {
            input_item_slave_t *p_slave =
                input_item_slave_New( psz_uri, SLAVE_TYPE_SPU,
                                      SLAVE_PRIORITY_USER );
            free( psz_uri );
            if( p_slave )
            {
                TAB_APPEND(i_slaves, pp_slaves, p_slave);
                psz_subtitle = p_slave->psz_uri;
            }
        }
    }

    if( var_GetBool( p_input, "sub-autodetect-file" ) )
    {
        /* Add local subtitles */
        char *psz_autopath = var_GetNonEmptyString( p_input, "sub-autodetect-path" );

        if( subtitles_Detect( p_input, psz_autopath, input_priv(p_input)->p_item->psz_uri,
                              &pp_slaves, &i_slaves ) == VLC_SUCCESS )
        {
            /* check that we did not add the subtitle through sub-file */
            if( psz_subtitle != NULL )
            {
                for( int i = 1; i < i_slaves; i++ )
                {
                    input_item_slave_t *p_curr = pp_slaves[i];
                    if( p_curr != NULL
                     && !strcmp( psz_subtitle, p_curr->psz_uri ) )
                    {
                        /* reject current sub */
                        input_item_slave_Delete( p_curr );
                        pp_slaves[i] = NULL;
                    }
                }
            }
        }
        free( psz_autopath );
    }

    /* Add slaves from the "input-slave" option */
    GetVarSlaves( p_input, &pp_slaves, &i_slaves );

    /* Add slaves found by the directory demuxer or via libvlc */
    input_item_t *p_item = input_priv(p_input)->p_item;
    vlc_mutex_lock( &p_item->lock );

    /* Move item slaves to local pp_slaves */
    for( int i = 0; i < p_item->i_slaves; i++ )
    {
        input_item_slave_t *p_slave = p_item->pp_slaves[i];
        if( !SlaveExists( pp_slaves, i_slaves, p_slave->psz_uri ) )
            TAB_APPEND(i_slaves, pp_slaves, p_slave);
        else
            input_item_slave_Delete( p_slave );
    }
    /* Slaves that are successfully loaded will be added back to the item */
    TAB_CLEAN( p_item->i_slaves, p_item->pp_slaves );
    vlc_mutex_unlock( &p_item->lock );

    if( i_slaves > 0 ) /* Sort by priority */
        qsort( pp_slaves, i_slaves, sizeof (input_item_slave_t*),
               SlaveCompare );

    /* add all detected slaves */
    static_assert( SLAVE_TYPE_GENERIC <= 1 && SLAVE_TYPE_SPU <= 1,
                   "slave type size mismatch");
    for( int i = 0; i < i_slaves && pp_slaves[i] != NULL; i++ )
    {
        input_item_slave_t *p_slave = pp_slaves[i];
        /* Slaves added via options should not fail */
        unsigned i_flags = p_slave->i_priority != SLAVE_PRIORITY_USER
                           ? SLAVE_ADD_CANFAIL : SLAVE_ADD_NOFLAG;

        /* Force the first subtitle with the highest priority or with the
         * forced flag */
        if ( p_slave->b_forced || p_slave->i_priority >= SLAVE_PRIORITY_MATCH_ALL )
            i_flags |= SLAVE_ADD_FORCED;

        if( input_SlaveSourceAdd( p_input, p_slave->i_type, p_slave->psz_uri,
                                  i_flags ) == VLC_SUCCESS )
            input_item_AddSlave( input_priv(p_input)->p_item, p_slave );
        else
            input_item_slave_Delete( p_slave );
    }
    TAB_CLEAN( i_slaves, pp_slaves );

    /* Load subtitles from attachments */
    int i_attachment = 0;
    input_attachment_t **pp_attachment = NULL;

    vlc_mutex_lock( &input_priv(p_input)->p_item->lock );
    for( int i = 0; i < input_priv(p_input)->i_attachment; i++ )
    {
        const input_attachment_t *a = input_priv(p_input)->attachment[i];
        if( !strcmp( a->psz_mime, "application/x-srt" ) )
            TAB_APPEND( i_attachment, pp_attachment,
                        vlc_input_attachment_New( a->psz_name, NULL,
                                                  a->psz_description, NULL, 0 ) );
    }
    vlc_mutex_unlock( &input_priv(p_input)->p_item->lock );

    if( i_attachment > 0 )
        var_Create( p_input, "sub-description", VLC_VAR_STRING );
    for( int i = 0; i < i_attachment; i++ )
    {
        input_attachment_t *a = pp_attachment[i];
        if( !a )
            continue;
        char *psz_mrl;
        if( a->psz_name[0] &&
            asprintf( &psz_mrl, "attachment://%s", a->psz_name ) >= 0 )
        {
            var_SetString( p_input, "sub-description", a->psz_description ? a->psz_description : "");

            /* Force the first subtitle from attachment if there is no
             * subtitles already forced */
            input_SlaveSourceAdd( p_input, SLAVE_TYPE_SPU, psz_mrl,
                                  SLAVE_ADD_FORCED );

            free( psz_mrl );
            /* Don't update item slaves for attachments */
        }
        vlc_input_attachment_Release( a );
    }
    free( pp_attachment );
    if( i_attachment > 0 )
        var_Destroy( p_input, "sub-description" );
}

static void UpdatePtsDelay( input_thread_t *p_input )
{
    input_thread_private_t *p_sys = input_priv(p_input);

    /* Get max pts delay from input source */
    vlc_tick_t i_pts_delay = p_sys->master->i_pts_delay;
    for( int i = 0; i < p_sys->i_slave; i++ )
        i_pts_delay = __MAX( i_pts_delay, p_sys->slave[i]->i_pts_delay );

    if( i_pts_delay < 0 )
        i_pts_delay = 0;

    /* Update cr_average depending on the caching */
    const int i_cr_average = var_GetInteger( p_input, "cr-average" ) * i_pts_delay / DEFAULT_PTS_DELAY;

    es_out_SetJitter( input_priv(p_input)->p_es_out, i_pts_delay, 0, i_cr_average );
}

static void InitPrograms( input_thread_t * p_input )
{
    int i_es_out_mode;
    int *tab;
    size_t count;

    TAB_INIT(count, tab);

    /* Compute correct pts_delay */
    UpdatePtsDelay( p_input );

    /* Set up es_out */
    i_es_out_mode = ES_OUT_MODE_AUTO;
    if( input_priv(p_input)->p_sout && !input_priv(p_input)->p_renderer )
    {
        char *prgms;

        if( (prgms = var_GetNonEmptyString( p_input, "programs" )) != NULL )
        {
            char *buf;

            for( const char *prgm = strtok_r( prgms, ",", &buf );
                 prgm != NULL;
                 prgm = strtok_r( NULL, ",", &buf ) )
            {
                TAB_APPEND(count, tab, atoi(prgm));
            }

            if( count > 0 )
                i_es_out_mode = ES_OUT_MODE_PARTIAL;
                /* Note : we should remove the "program" callback. */

            free( prgms );
        }
        else if( var_GetBool( p_input, "sout-all" ) )
        {
            i_es_out_mode = ES_OUT_MODE_ALL;
        }
    }
    es_out_SetMode( input_priv(p_input)->p_es_out, i_es_out_mode );

    /* Inform the demuxer about waited group (needed only for DVB) */
    if( i_es_out_mode == ES_OUT_MODE_ALL )
    {
        demux_Control( input_priv(p_input)->master->p_demux,
                       DEMUX_SET_GROUP_ALL );
    }
    else if( i_es_out_mode == ES_OUT_MODE_PARTIAL )
    {
        demux_Control( input_priv(p_input)->master->p_demux,
                       DEMUX_SET_GROUP_LIST, count, tab );
        free(tab);
    }
    else
    {
        int program = es_out_GetGroupForced( input_priv(p_input)->p_es_out );
        if( program == 0 )
            demux_Control( input_priv(p_input)->master->p_demux,
                           DEMUX_SET_GROUP_DEFAULT );
        else
            demux_Control( input_priv(p_input)->master->p_demux,
                           DEMUX_SET_GROUP_LIST, (size_t)1,
                           (const int *)&program );
    }
}

static int Init( input_thread_t * p_input )
{
    input_thread_private_t *priv = input_priv(p_input);
    input_source_t *master;

    /* */
    input_ChangeState( p_input, OPENING_S, VLC_TICK_INVALID );
    input_SendEventCache( p_input, 0.0 );

    if( var_Type( vlc_object_parent(p_input), "meta-file" ) )
    {
        msg_Dbg( p_input, "Input is a meta file: disabling unneeded options" );
        var_SetString( p_input, "sout", "" );
        var_SetBool( p_input, "sout-all", false );
        var_SetString( p_input, "input-slave", "" );
        var_SetInteger( p_input, "input-repeat", 0 );
        var_SetString( p_input, "sub-file", "" );
        var_SetBool( p_input, "sub-autodetect-file", false );
    }

    if( InitSout( p_input ) )
        goto error;

    /* Create es out */
    priv->p_es_out = input_EsOutTimeshiftNew( p_input, priv->p_es_out_display, priv->rate );
    if( priv->p_es_out == NULL )
        goto error;

    /* */
    master = priv->master;
    if( master == NULL )
        goto error;
    int ret = InputSourceInit( master, p_input, priv->p_item->psz_uri,
                               NULL, false );
    if( ret != VLC_SUCCESS )
    {
        InputSourceDestroy( master );
        goto error;
    }

    InitProperties( p_input );

    InitTitle( p_input, false );

    /* Load master infos */
    InputSourceStatistics( master, priv->p_item, priv->p_es_out );

    FillFileStatsIfAny( p_input );

    if( priv->type != INPUT_TYPE_PREPARSING )
    {
        StartTitle( p_input );
        SetSubtitlesOptions( p_input );
        LoadSlaves( p_input );
        InitPrograms( p_input );

        double f_rate = var_GetFloat( p_input, "rate" );
        if( f_rate != 0.0 && f_rate != 1.0 )
        {
            vlc_value_t val = { .f_float = f_rate };
            input_ControlPushHelper( p_input, INPUT_CONTROL_SET_RATE, &val );
        }
    }

    if( priv->type != INPUT_TYPE_PREPARSING && priv->p_sout )
    {
        priv->b_out_pace_control = sout_StreamIsSynchronous(priv->p_sout);
        msg_Dbg( p_input, "starting in %ssync mode",
                 priv->b_out_pace_control ? "a" : "" );
    }

    if (!input_item_IsPreparsed(input_priv(p_input)->p_item))
    {
        vlc_meta_t *p_meta = vlc_meta_New();
        if( p_meta != NULL )
        {
            /* Get meta data from users */
            InputMetaUser( p_input, p_meta );

            /* Get meta data from master input */
            InputSourceMeta( p_input, master, p_meta );

            /* And from slave */
            for( int i = 0; i < priv->i_slave; i++ )
                InputSourceMeta( p_input, priv->slave[i], p_meta );

            es_out_ControlSetMeta( priv->p_es_out, p_meta );
            vlc_meta_Delete( p_meta );
        }
    }

    msg_Dbg( p_input, "`%s' successfully opened",
             input_priv(p_input)->p_item->psz_uri );

    /* initialization is complete */
    input_ChangeState( p_input, PLAYING_S, vlc_tick_now() );

    return VLC_SUCCESS;

error:
    input_ChangeState( p_input, ERROR_S, VLC_TICK_INVALID );

    if( input_priv(p_input)->p_es_out )
        es_out_Delete( input_priv(p_input)->p_es_out );
    es_out_SetMode( input_priv(p_input)->p_es_out_display, ES_OUT_MODE_END );
    if( input_priv(p_input)->p_resource )
    {
        if( input_priv(p_input)->p_sout )
            input_resource_PutSout( input_priv(p_input)->p_resource,
                                    input_priv(p_input)->p_sout );
        input_resource_SetInput( input_priv(p_input)->p_resource, NULL );
        if( input_priv(p_input)->p_resource )
        {
            input_resource_Release( input_priv(p_input)->p_resource );
            input_priv(p_input)->p_resource = NULL;
        }
    }

    /* Mark them deleted */
    input_priv(p_input)->p_es_out = NULL;
    input_priv(p_input)->p_sout = NULL;

    return VLC_EGENERIC;
}

/*****************************************************************************
 * End: end the input thread
 *****************************************************************************/
static void End( input_thread_t * p_input )
{
    input_thread_private_t *priv = input_priv(p_input);

    /* We are at the end */
    input_ChangeState( p_input, END_S, VLC_TICK_INVALID );

    /* Stop es out activity */
    es_out_SetMode( priv->p_es_out, ES_OUT_MODE_NONE );

    /* Delete slave */
    for( int i = 0; i < priv->i_slave; i++ )
    {
        InputSourceDestroy( priv->slave[i] );
        input_source_Release( priv->slave[i] );
    }
    free( priv->slave );

    /* Clean up master */
    InputSourceDestroy( priv->master );
    priv->i_title_offset = 0;
    priv->i_seekpoint_offset = 0;

    /* Unload all modules */
    if( priv->p_es_out )
        es_out_Delete( priv->p_es_out );
    es_out_SetMode( priv->p_es_out_display, ES_OUT_MODE_END );

    if( priv->stats != NULL )
    {
        input_item_t *item = priv->p_item;
        /* make sure we are up to date */
        vlc_mutex_lock( &item->lock );
        input_stats_Compute( priv->stats, item->p_stats );
        vlc_mutex_unlock( &item->lock );
    }

    vlc_mutex_lock( &priv->p_item->lock );
    if( priv->i_attachment > 0 )
    {
        for( int i = 0; i < priv->i_attachment; i++ )
            vlc_input_attachment_Release( priv->attachment[i] );
        TAB_CLEAN( priv->i_attachment, priv->attachment );
    }

    vlc_mutex_unlock( &input_priv(p_input)->p_item->lock );

    /* */
    input_resource_PutSout( input_priv(p_input)->p_resource,
                            input_priv(p_input)->p_sout );
    input_resource_SetInput( input_priv(p_input)->p_resource, NULL );
    if( input_priv(p_input)->p_resource )
    {
        input_resource_Release( input_priv(p_input)->p_resource );
        input_priv(p_input)->p_resource = NULL;
    }
}

static size_t ControlGetReducedIndexLocked( input_thread_t *p_input,
                                            input_control_t *c )
{
    input_thread_private_t *sys = input_priv(p_input);

    if( sys->i_control == 0 )
        return 0;

    input_control_t *prev_control = &sys->control[sys->i_control - 1];
    const int i_lt = prev_control->i_type;
    const int i_ct = c->i_type;

    if( i_lt == i_ct )
    {
        if ( 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_VIEWPOINT )
        {
            return sys->i_control - 1;
        }
        else if ( i_ct == INPUT_CONTROL_JUMP_TIME )
        {
            c->param.time.i_val += prev_control->param.time.i_val;
            return sys->i_control - 1;
        }
        else if ( i_ct == INPUT_CONTROL_JUMP_POSITION )
        {
            c->param.pos.f_val += prev_control->param.pos.f_val;
            return sys->i_control - 1;
        }
        else if ( i_ct == INPUT_CONTROL_UPDATE_VIEWPOINT )
        {
            c->param.viewpoint.yaw += prev_control->param.viewpoint.yaw;
            c->param.viewpoint.pitch += prev_control->param.viewpoint.pitch;
            c->param.viewpoint.roll += prev_control->param.viewpoint.roll;
            c->param.viewpoint.fov += prev_control->param.viewpoint.fov;
            return sys->i_control - 1;
        }
    }

    return sys->i_control;
}

/*****************************************************************************
 * Control
 *****************************************************************************/
int input_ControlPush( input_thread_t *p_input,
                       int i_type, const input_control_param_t *p_param )
{
    input_thread_private_t *sys = input_priv(p_input);

    vlc_mutex_lock( &sys->lock_control );
    input_control_t c = {
        .i_type = i_type,
    };
    if( p_param )
        c.param = *p_param;

    size_t i_next_control_idx = ControlGetReducedIndexLocked( p_input, &c );

    if( sys->is_stopped || i_next_control_idx >= INPUT_CONTROL_FIFO_SIZE )
    {
        if( sys->is_stopped )
            msg_Dbg( p_input, "input control stopped, trashing type=%d",
                     i_type );
        else
            msg_Err( p_input, "input control fifo overflow, trashing type=%d",
                     i_type );
        if( p_param )
            ControlRelease( i_type, p_param );
        vlc_mutex_unlock( &sys->lock_control );
        return VLC_EGENERIC;
    }

    sys->control[i_next_control_idx] = c;
    sys->i_control = i_next_control_idx + 1;

    vlc_cond_signal( &sys->wait_control );
    vlc_mutex_unlock( &sys->lock_control );
    return VLC_SUCCESS;
}

static inline int ControlPop( input_thread_t *p_input,
                              int *pi_type, input_control_param_t *p_param,
                              vlc_tick_t i_deadline, bool b_postpone_seek )
{
    input_thread_private_t *p_sys = input_priv(p_input);

    vlc_mutex_lock( &p_sys->lock_control );
    while( p_sys->i_control <= 0 ||
           ( b_postpone_seek && ControlIsSeekRequest( p_sys->control[0].i_type ) ) )
    {
        if( p_sys->is_stopped )
        {
            vlc_mutex_unlock( &p_sys->lock_control );
            return VLC_EGENERIC;
        }

        if( i_deadline >= 0 )
        {
            if( vlc_cond_timedwait( &p_sys->wait_control, &p_sys->lock_control,
                                    i_deadline ) )
            {
                vlc_mutex_unlock( &p_sys->lock_control );
                return VLC_EGENERIC;
            }
        }
        else
            vlc_cond_wait( &p_sys->wait_control, &p_sys->lock_control );
    }

    /* */
    *pi_type = p_sys->control[0].i_type;
    *p_param   = p_sys->control[0].param;

    p_sys->i_control --;
    if( p_sys->i_control > 0 )
        memmove( &p_sys->control[0], &p_sys->control[1],
                 sizeof(*p_sys->control) * p_sys->i_control );
    vlc_mutex_unlock( &p_sys->lock_control );

    return VLC_SUCCESS;
}
static bool ControlIsSeekRequest( int i_type )
{
    switch( i_type )
    {
    case INPUT_CONTROL_SET_POSITION:
    case INPUT_CONTROL_JUMP_POSITION:
    case INPUT_CONTROL_SET_TIME:
    case INPUT_CONTROL_JUMP_TIME:
    case INPUT_CONTROL_SET_TITLE:
    case INPUT_CONTROL_SET_TITLE_NEXT:
    case INPUT_CONTROL_SET_TITLE_PREV:
    case INPUT_CONTROL_SET_SEEKPOINT:
    case INPUT_CONTROL_SET_SEEKPOINT_NEXT:
    case INPUT_CONTROL_SET_SEEKPOINT_PREV:
    case INPUT_CONTROL_NAV_ACTIVATE:
    case INPUT_CONTROL_NAV_UP:
    case INPUT_CONTROL_NAV_DOWN:
    case INPUT_CONTROL_NAV_LEFT:
    case INPUT_CONTROL_NAV_RIGHT:
    case INPUT_CONTROL_NAV_POPUP:
    case INPUT_CONTROL_NAV_MENU:
        return true;
    default:
        return false;
    }
}

static void ControlRelease( int i_type, const input_control_param_t *p_param )
{
    if( p_param == NULL )
        return;

    switch( i_type )
    {
    case INPUT_CONTROL_ADD_SLAVE:
        if( p_param->val.p_address )
            input_item_slave_Delete( p_param->val.p_address );
        break;
    case INPUT_CONTROL_SET_RENDERER:
        if( p_param->val.p_address )
            vlc_renderer_item_release( p_param->val.p_address );
        break;
    case INPUT_CONTROL_SET_ES:
    case INPUT_CONTROL_UNSET_ES:
    case INPUT_CONTROL_RESTART_ES:
        vlc_es_id_Release( p_param->id );
        break;
    case INPUT_CONTROL_SET_ES_LIST:
    {
        for (size_t i = 0; ; i++)
        {
            vlc_es_id_t *es_id = p_param->list.ids[i];
            if (es_id == NULL)
                break;
            vlc_es_id_Release(es_id);
        }
        free(p_param->list.ids);
        break;
    }
    case INPUT_CONTROL_SET_ES_CAT_IDS:
        free( p_param->cat_ids.str_ids );
        break;
    case INPUT_CONTROL_SET_RECORD_STATE:
        free( p_param->record_state.dir_path );
        break;

    default:
        break;
    }
}

/* Pause input */
static void ControlPause( input_thread_t *p_input, vlc_tick_t i_control_date )
{
    int i_state = PAUSE_S;

    if( input_priv(p_input)->master->b_can_pause )
    {
        demux_t *p_demux = input_priv(p_input)->master->p_demux;

        if( demux_Control( p_demux, DEMUX_SET_PAUSE_STATE, true ) )
        {
            msg_Warn( p_input, "cannot set pause state" );
            return;
        }
    }

    /* */
    if( es_out_SetPauseState( input_priv(p_input)->p_es_out,
                              input_priv(p_input)->master->b_can_pause,
                              true, i_control_date ) )
    {
        msg_Warn( p_input, "cannot set pause state at es_out level" );
        return;
    }

    /* Switch to new state */
    input_ChangeState( p_input, i_state, i_control_date );
}

static void ControlUnpause( input_thread_t *p_input, vlc_tick_t i_control_date )
{
    if( input_priv(p_input)->master->b_can_pause )
    {
        demux_t *p_demux = input_priv(p_input)->master->p_demux;

        if( demux_Control( p_demux, DEMUX_SET_PAUSE_STATE, false ) )
        {
            msg_Err( p_input, "cannot resume" );
            input_ChangeState( p_input, ERROR_S, i_control_date );
            return;
        }
    }

    /* Switch to play */
    input_ChangeState( p_input, PLAYING_S, i_control_date );
    es_out_SetPauseState( input_priv(p_input)->p_es_out, false, false, i_control_date );
}

static void ViewpointApply( input_thread_t *p_input )
{
    input_thread_private_t *priv = input_priv(p_input);

    vlc_viewpoint_clip( &priv->viewpoint );

    vout_thread_t **pp_vout;
    size_t i_vout;
    input_resource_HoldVouts( priv->p_resource, &pp_vout, &i_vout );

    for( size_t i = 0; i < i_vout; ++i )
    {
        var_SetAddress( pp_vout[i], "viewpoint", &priv->viewpoint );
        /* This variable can only be read from callbacks */
        var_Change( pp_vout[i], "viewpoint", VLC_VAR_SETVALUE,
                    (vlc_value_t) { .p_address = NULL } );
        vout_Release(pp_vout[i]);
    }
    free( pp_vout );

    audio_output_t *p_aout = input_resource_HoldAout( priv->p_resource );
    if( p_aout )
    {

        var_SetAddress( p_aout, "viewpoint", &priv->viewpoint );
        /* This variable can only be read from callbacks */
        var_Change( p_aout, "viewpoint", VLC_VAR_SETVALUE,
                    (vlc_value_t) { .p_address = NULL } );
        aout_Release(p_aout);
    }
}

static void ControlNav( input_thread_t *p_input, int i_type )
{
    input_thread_private_t *priv = input_priv(p_input);

    if( !demux_Control( priv->master->p_demux, i_type
                        - INPUT_CONTROL_NAV_ACTIVATE + DEMUX_NAV_ACTIVATE ) )
        return; /* The demux handled the navigation control */

    /* Handle Up/Down/Left/Right if the demux can't navigate */
    vlc_viewpoint_t vp = {0};
    int vol_direction = 0;
    int seek_direction = 0;
    switch( i_type )
    {
        case INPUT_CONTROL_NAV_UP:
            vol_direction = 1;
            vp.pitch = -1.f;
            break;
        case INPUT_CONTROL_NAV_DOWN:
            vol_direction = -1;
            vp.pitch = 1.f;
            break;
        case INPUT_CONTROL_NAV_LEFT:
            seek_direction = -1;
            vp.yaw = -1.f;
            break;
        case INPUT_CONTROL_NAV_RIGHT:
            seek_direction = 1;
            vp.yaw = 1.f;
            break;
        case INPUT_CONTROL_NAV_ACTIVATE:
        case INPUT_CONTROL_NAV_POPUP:
        case INPUT_CONTROL_NAV_MENU:
            return;
        default:
            vlc_assert_unreachable();
    }

    /* Try to change the viewpoint if possible */
    vout_thread_t **pp_vout;
    size_t i_vout;
    bool b_viewpoint_ch = false;
    input_resource_HoldVouts( priv->p_resource, &pp_vout, &i_vout );
    for( size_t i = 0; i < i_vout; ++i )
    {
        if( !b_viewpoint_ch
         && var_GetBool( pp_vout[i], "viewpoint-changeable" ) )
            b_viewpoint_ch = true;
        vout_Release(pp_vout[i]);
    }
    free( pp_vout );

    if( b_viewpoint_ch )
    {
        priv->viewpoint_changed = true;
        priv->viewpoint.yaw   += vp.yaw;
        priv->viewpoint.pitch += vp.pitch;
        priv->viewpoint.roll  += vp.roll;
        priv->viewpoint.fov   += vp.fov;
        ViewpointApply( p_input );
        return;
    }

    /* Seek or change volume if the input doesn't have navigation or viewpoint */
    if( seek_direction != 0 )
    {
        vlc_tick_t it = vlc_tick_from_sec( seek_direction * var_InheritInteger( p_input, "short-jump-size" ) );
        Control( p_input, INPUT_CONTROL_JUMP_TIME, (input_control_param_t) {
            .time.b_fast_seek = false,
            .time.i_val = it
        });
    }
    else
    {
        assert( vol_direction != 0 );
        audio_output_t *p_aout = input_resource_HoldAout( priv->p_resource );
        if( p_aout )
        {
            aout_VolumeUpdate( p_aout, vol_direction, NULL );
            aout_Release(p_aout);
        }
    }
}

static void ControlUpdateRenderer( input_thread_t *p_input, bool b_enable )
{
    if( b_enable )
    {
        if( InitSout( p_input ) != VLC_SUCCESS )
        {
            msg_Err( p_input, "Failed to start sout" );
            return;
        }
    }
    else
    {
        input_resource_PutSout( input_priv(p_input)->p_resource,
                                input_priv(p_input)->p_sout );
        input_priv(p_input)->p_sout = NULL;
    }
}

static void ControlInsertDemuxFilter( input_thread_t* p_input, const char* psz_demux_chain )
{
    input_source_t *p_inputSource = input_priv(p_input)->master;
    demux_t *p_filtered_demux = demux_FilterChainNew( p_inputSource->p_demux, psz_demux_chain );
    if ( p_filtered_demux != NULL )
        p_inputSource->p_demux = p_filtered_demux;
    else if ( psz_demux_chain != NULL )
        msg_Dbg(p_input, "Failed to create demux filter %s", psz_demux_chain);
}

void input_SetProgramId(input_thread_t *input, int group_id)

{
    input_thread_private_t *sys = input_priv(input);

    if (!sys->is_running && !sys->is_stopped)
    {
        /* Not running, send the control synchronously since we are sure that
         * it won't block */
        es_out_Control(sys->p_es_out_display, ES_OUT_SET_GROUP, group_id);
    }
    else
    {
        input_ControlPushHelper(input, INPUT_CONTROL_SET_PROGRAM,
                                &(vlc_value_t) { .i_int = group_id });
    }
}

int input_SetEsCatDelay(input_thread_t *input, enum es_format_category_e cat,
                        vlc_tick_t delay)
{
    input_thread_private_t *sys = input_priv(input);
    /* A failure can only happen in the input_ControlPush section. */
    int ret = VLC_SUCCESS;

    if (!sys->is_running && !sys->is_stopped)
    {
        /* Not running, send the control synchronously since we are sure that
         * it won't block */
        es_out_SetDelay(sys->p_es_out_display, cat, delay);
    }
    else
    {
        const input_control_param_t param = {
            .cat_delay = { cat, delay }
        };
        ret = input_ControlPush(input, INPUT_CONTROL_SET_CATEGORY_DELAY,
                                &param);
    }

    return ret;
}

void input_SetEsCatIds(input_thread_t *input, enum es_format_category_e cat,
                       const char *str_ids)
{
    input_thread_private_t *sys = input_priv(input);

    if (!sys->is_running && !sys->is_stopped)
    {
        /* Not running, send the control synchronously since we are sure that
         * it won't block */
        es_out_SetEsCatIds(sys->p_es_out_display, cat, str_ids);
    }
    else
    {
        const input_control_param_t param = {
            .cat_ids = { cat, str_ids ? strdup(str_ids) : NULL }
        };
        input_ControlPush(input, INPUT_CONTROL_SET_ES_CAT_IDS, &param);
    }
}

static void ControlSetEsList(input_thread_t *input,
                             enum es_format_category_e cat,
                             vlc_es_id_t **ids)
{
    input_thread_private_t *priv = input_priv(input);

    if (es_out_SetEsList(priv->p_es_out_display, cat, ids) != VLC_SUCCESS)
        return;

    if (ids[0] != NULL && ids[1] == NULL)
    {
        /* Update the only demux touched by this change */
        const input_source_t *source = vlc_es_id_GetSource(ids[0]);
        assert(source);
        demux_Control(source->p_demux, DEMUX_SET_ES,
                      vlc_es_id_GetInputId(ids[0]));
        return;
    }

    /* Send the updated list for each different sources */
    size_t count;
    for (count = 0; ids[count] != NULL; count++);
    int *array = count ? vlc_alloc(count, sizeof(int)) : NULL;
    if (!array)
        return;

    for (int i = 0; i < priv->i_slave + 1; ++ i)
    {
        /* For master and all slaves */
        input_source_t *source = i == 0 ? priv->master : priv->slave[i - 1];

        /* Split the ids array into smaller arrays of ids having the same
         * source. */
        size_t set_es_idx = 0;
        for (size_t ids_idx = 0; ids_idx < count; ++ids_idx)
        {
            vlc_es_id_t *id = ids[ids_idx];
            if (vlc_es_id_GetSource(id) == source)
                array[set_es_idx++] = vlc_es_id_GetInputId(id);
        }

        /* Update all demuxers */
        if (set_es_idx > 0)
        {
            if (set_es_idx == 1)
                demux_Control(source->p_demux, DEMUX_SET_ES, array[0]);
            else
                demux_Control(source->p_demux, DEMUX_SET_ES_LIST, set_es_idx,
                              array);
        }
    }
    free(array);
}

static bool Control( input_thread_t *p_input,
                     int i_type, input_control_param_t param )
{
    input_thread_private_t *priv = input_priv(p_input);
    const vlc_tick_t i_control_date = vlc_tick_now();
    /* FIXME b_force_update is abused, it should be carefully checked */
    bool b_force_update = false;

    switch( i_type )
    {
        case INPUT_CONTROL_SET_POSITION:
        case INPUT_CONTROL_JUMP_POSITION:
        {
            const bool absolute = i_type == INPUT_CONTROL_SET_POSITION;
            if( priv->b_recording )
            {
                msg_Err( p_input, "INPUT_CONTROL_SET_POSITION ignored while recording" );
                break;
            }

            /* Reset the decoders states and clock sync (before calling the demuxer */
            es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );
            if( demux_SetPosition( priv->master->p_demux, param.pos.f_val,
                                   !param.pos.b_fast_seek, absolute ) )
            {
                msg_Err( p_input, "INPUT_CONTROL_SET_POSITION "
                         "%s%2.1f%% failed",
                         absolute ? "@" : param.pos.f_val >= 0 ? "+" : "",
                         param.pos.f_val * 100.f );
            }
            else
            {
                if( priv->i_slave > 0 )
                    SlaveSeek( p_input );
                priv->master->b_eof = false;

                b_force_update = true;
            }
            break;
        }

        case INPUT_CONTROL_SET_TIME:
        case INPUT_CONTROL_JUMP_TIME:
        {
            const bool absolute = i_type == INPUT_CONTROL_SET_TIME;
            int i_ret;

            if( priv->b_recording )
            {
                msg_Err( p_input, "INPUT_CONTROL_SET_TIME ignored while recording" );
                break;
            }

            /* Reset the decoders states and clock sync (before calling the demuxer */
            es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );

            i_ret = demux_SetTime( priv->master->p_demux, param.time.i_val,
                                   !param.time.b_fast_seek, absolute );
            if( i_ret )
            {
                vlc_tick_t i_length = InputSourceGetLength( priv->master, priv->p_item );
                /* Emulate it with a SET_POS */
                if( i_length > 0 )
                {
                    double f_pos = (double)param.time.i_val / (double)i_length;
                    i_ret = demux_SetPosition( priv->master->p_demux, f_pos,
                                               !param.time.b_fast_seek,
                                               absolute );
                }
            }
            if( i_ret )
            {
                msg_Warn( p_input, "INPUT_CONTROL_SET_TIME %s%"PRId64
                         " failed or not possible",
                         absolute ? "@" : param.time.i_val >= 0 ? "+" : "",
                         param.time.i_val );
            }
            else
            {
                if( priv->i_slave > 0 )
                    SlaveSeek( p_input );
                priv->master->b_eof = false;

                b_force_update = true;
            }
            break;
        }

        case INPUT_CONTROL_SET_STATE:
            switch( param.val.i_int )
            {
                case PLAYING_S:
                    if( priv->i_state == PAUSE_S )
                    {
                        ControlUnpause( p_input, i_control_date );
                        b_force_update = true;
                    }
                    break;
                case PAUSE_S:
                    if( priv->i_state == PLAYING_S )
                    {
                        ControlPause( p_input, i_control_date );
                        b_force_update = true;
                    }
                    break;
                default:
                    msg_Err( p_input, "invalid INPUT_CONTROL_SET_STATE" );
            }
            break;

        case INPUT_CONTROL_SET_RATE:
        {
            /* Get rate and direction */
            float rate = fabsf( param.val.f_float );
            int i_rate_sign = param.val.f_float < 0 ? -1 : 1;

            /* Check rate bound */
            if( rate > INPUT_RATE_MAX )
            {
                msg_Info( p_input, "cannot set rate faster" );
                rate = INPUT_RATE_MAX;
            }
            else if( rate < INPUT_RATE_MIN )
            {
                msg_Info( p_input, "cannot set rate slower" );
                rate = INPUT_RATE_MIN;
            }

            /* Apply direction */
            if( i_rate_sign < 0 )
            {
                if( priv->master->b_rescale_ts )
                {
                    msg_Dbg( p_input, "cannot set negative rate" );
                    rate = priv->rate;
                    assert( rate > 0 );
                }
                else
                {
                    rate *= i_rate_sign;
                }
            }

            if( rate != 1.f &&
                ( ( !priv->master->b_can_rate_control && !priv->master->b_rescale_ts ) ||
                  ( priv->p_sout && !priv->b_out_pace_control ) ) )
            {
                msg_Dbg( p_input, "cannot change rate" );
                rate = 1.f;
            }
            if( rate != priv->rate &&
                !priv->master->b_can_pace_control && priv->master->b_can_rate_control )
            {
                if( !priv->master->b_rescale_ts )
                    es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );

                if( demux_Control( priv->master->p_demux, DEMUX_SET_RATE,
                                   &rate ) )
                {
                    msg_Warn( p_input, "ACCESS/DEMUX_SET_RATE failed" );
                    rate = priv->rate;
                }
            }

            /* */
            if( rate != priv->rate )
            {
                priv->rate = rate;
                input_SendEventRate( p_input, rate );

                if( priv->master->b_rescale_ts )
                {
                    const float rate_source = (priv->master->b_can_pace_control ||
                        priv->master->b_can_rate_control ) ? rate : 1.f;
                    es_out_SetRate( priv->p_es_out, rate_source, rate );
                }

                b_force_update = true;
            }
            break;
        }

        case INPUT_CONTROL_SET_PROGRAM:
            /* No need to force update, es_out does it if needed */
            es_out_Control( priv->p_es_out,
                            ES_OUT_SET_GROUP, (int)param.val.i_int );

            if( param.val.i_int == 0 )
                demux_Control( priv->master->p_demux,
                               DEMUX_SET_GROUP_DEFAULT );
            else
                demux_Control( priv->master->p_demux,
                               DEMUX_SET_GROUP_LIST,
                               (size_t)1, &(const int){ param.val.i_int });
            break;

        case INPUT_CONTROL_SET_ES:
            if( es_out_SetEs( priv->p_es_out_display, param.id ) == VLC_SUCCESS )
            {
                const input_source_t *source = vlc_es_id_GetSource( param.id );
                assert( source );
                demux_Control( source->p_demux, DEMUX_SET_ES,
                               vlc_es_id_GetInputId( param.id ) );
            }
            break;
        case INPUT_CONTROL_SET_ES_LIST:
            ControlSetEsList( p_input, param.list.cat, param.list.ids );
            break;
        case INPUT_CONTROL_UNSET_ES:
            es_out_UnsetEs( priv->p_es_out_display, param.id );
            break;
        case INPUT_CONTROL_RESTART_ES:
            es_out_RestartEs( priv->p_es_out_display, param.id );
            break;
        case INPUT_CONTROL_SET_ES_CAT_IDS:
            es_out_SetEsCatIds( priv->p_es_out_display, param.cat_ids.cat,
                                param.cat_ids.str_ids );
            break;

        case INPUT_CONTROL_SET_VIEWPOINT:
        case INPUT_CONTROL_SET_INITIAL_VIEWPOINT:
        case INPUT_CONTROL_UPDATE_VIEWPOINT:
            if ( i_type == INPUT_CONTROL_SET_INITIAL_VIEWPOINT )
            {

                /* Set the initial viewpoint if it had not been changed by the
                 * user. */
                if( !priv->viewpoint_changed )
                    priv->viewpoint = param.viewpoint;
                /* Update viewpoints of aout and every vouts in all cases. */
            }
            else if ( i_type == INPUT_CONTROL_SET_VIEWPOINT)
            {
                priv->viewpoint_changed = true;
                priv->viewpoint = param.viewpoint;
            }
            else
            {
                priv->viewpoint_changed = true;
                priv->viewpoint.yaw   += param.viewpoint.yaw;
                priv->viewpoint.pitch += param.viewpoint.pitch;
                priv->viewpoint.roll  += param.viewpoint.roll;
                priv->viewpoint.fov   += param.viewpoint.fov;
            }

            ViewpointApply( p_input );
            break;

        case INPUT_CONTROL_SET_CATEGORY_DELAY:
            assert(param.cat_delay.cat == AUDIO_ES
                || param.cat_delay.cat == SPU_ES);
            es_out_SetDelay(priv->p_es_out_display,
                            param.cat_delay.cat, param.cat_delay.delay);
            break;
        case INPUT_CONTROL_SET_ES_DELAY:
            assert(param.es_delay.id);
            es_out_SetEsDelay(priv->p_es_out_display, param.es_delay.id,
                              param.es_delay.delay);
            break;

        case INPUT_CONTROL_SET_TITLE:
        case INPUT_CONTROL_SET_TITLE_NEXT:
        case INPUT_CONTROL_SET_TITLE_PREV:
        {
            if( priv->b_recording )
            {
                msg_Err( p_input, "INPUT_CONTROL_SET_TITLE(*) ignored while recording" );
                break;
            }
            if( priv->master->i_title <= 0 )
                break;

            int i_title = demux_GetTitle( priv->master->p_demux );
            if( i_type == INPUT_CONTROL_SET_TITLE_PREV )
                i_title--;
            else if( i_type == INPUT_CONTROL_SET_TITLE_NEXT )
                i_title++;
            else
                i_title = param.val.i_int;
            if( i_title < 0 || i_title >= priv->master->i_title )
                break;

            es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );
            demux_Control( priv->master->p_demux,
                           DEMUX_SET_TITLE, i_title );
            break;
        }
        case INPUT_CONTROL_SET_SEEKPOINT:
        case INPUT_CONTROL_SET_SEEKPOINT_NEXT:
        case INPUT_CONTROL_SET_SEEKPOINT_PREV:
        {
            if( priv->b_recording )
            {
                msg_Err( p_input, "INPUT_CONTROL_SET_SEEKPOINT(*) ignored while recording" );
                break;
            }
            if( priv->master->i_title <= 0 )
                break;

            demux_t *p_demux = priv->master->p_demux;

            int i_title = demux_GetTitle( p_demux );
            int i_seekpoint = demux_GetSeekpoint( p_demux );

            if( i_type == INPUT_CONTROL_SET_SEEKPOINT_PREV )
            {
                vlc_tick_t i_seekpoint_time = priv->master->title[i_title]->seekpoint[i_seekpoint]->i_time_offset;
                vlc_tick_t i_input_time = var_GetInteger( p_input, "time" );
                if( i_seekpoint_time >= 0 && i_input_time >= 0 )
                {
                    if( i_input_time < i_seekpoint_time + VLC_TICK_FROM_SEC(3) )
                        i_seekpoint--;
                }
                else
                    i_seekpoint--;
            }
            else if( i_type == INPUT_CONTROL_SET_SEEKPOINT_NEXT )
                i_seekpoint++;
            else
                i_seekpoint = param.val.i_int;
            if( i_seekpoint < 0
             || i_seekpoint >= priv->master->title[i_title]->i_seekpoint )
                break;

            es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );
            demux_Control( priv->master->p_demux,
                           DEMUX_SET_SEEKPOINT, i_seekpoint );
            input_SendEventSeekpoint( p_input, i_title, i_seekpoint );
            if( priv->i_slave > 0 )
                SlaveSeek( p_input );
            break;
        }

        case INPUT_CONTROL_ADD_SLAVE:
            if( param.val.p_address )
            {
                input_item_slave_t *p_item_slave  = param.val.p_address;
                unsigned i_flags = SLAVE_ADD_CANFAIL | SLAVE_ADD_SET_TIME;
                if( p_item_slave->b_forced )
                    i_flags |= SLAVE_ADD_FORCED;

                if( input_SlaveSourceAdd( p_input, p_item_slave->i_type,
                                          p_item_slave->psz_uri, i_flags )
                                          == VLC_SUCCESS )
                {
                    /* Update item slaves */
                    input_item_AddSlave( priv->p_item, p_item_slave );
                    /* The slave is now owned by the item */
                    param.val.p_address = NULL;
                }
            }
            break;
        case INPUT_CONTROL_SET_SUBS_FPS:
            RequestSubRate( p_input, param.val.f_float );
            input_SendEventSubsFPS( p_input, param.val.f_float );
            break;

        case INPUT_CONTROL_SET_RECORD_STATE:
        {
            bool enabled = param.record_state.enabled;
            const char *dir_path = param.record_state.dir_path;
            if( !!priv->b_recording != enabled )
            {
                if( priv->master->b_can_stream_record )
                {
                    if( demux_Control( priv->master->p_demux,
                                       DEMUX_SET_RECORD_STATE, enabled, dir_path ) )
                        enabled = false;
                }
                else
                {
                    if( es_out_SetRecordState( priv->p_es_out_display, enabled, dir_path ) )
                        enabled = false;
                }
                priv->b_recording = enabled;

                input_SendEventRecord( p_input, enabled );

                b_force_update = true;
            }
            break;
        }

        case INPUT_CONTROL_SET_FRAME_NEXT:
            if( priv->i_state == PAUSE_S )
            {
                es_out_SetFrameNext( priv->p_es_out );
            }
            else if( priv->i_state == PLAYING_S )
            {
                ControlPause( p_input, i_control_date );
            }
            else
            {
                msg_Err( p_input, "invalid state for frame next" );
            }
            b_force_update = true;
            break;

        case INPUT_CONTROL_SET_RENDERER:
        {
            vlc_renderer_item_t *p_item = param.val.p_address;
            input_thread_private_t *p_priv = input_priv( p_input );
            // We do not support switching from a renderer to another for now
            if ( p_item == NULL && p_priv->p_renderer == NULL )
                break;

            vlc_es_id_t **context;
            if( es_out_StopAllEs( priv->p_es_out_display, &context ) != VLC_SUCCESS )
                break;

            if ( p_priv->p_renderer )
            {
                ControlUpdateRenderer( p_input, false );
                demux_FilterDisable( p_priv->master->p_demux,
                        vlc_renderer_item_demux_filter( p_priv->p_renderer ) );
                vlc_renderer_item_release( p_priv->p_renderer );
                p_priv->p_renderer = NULL;
            }
            if( p_item != NULL )
            {
                p_priv->p_renderer = vlc_renderer_item_hold( p_item );
                ControlUpdateRenderer( p_input, true );
                if( !demux_FilterEnable( p_priv->master->p_demux,
                                vlc_renderer_item_demux_filter( p_priv->p_renderer ) ) )
                {
                    ControlInsertDemuxFilter( p_input,
                                        vlc_renderer_item_demux_filter( p_item ) );
                }
            }
            es_out_StartAllEs( priv->p_es_out_display, context );
            break;
        }
        case INPUT_CONTROL_SET_VBI_PAGE:
            es_out_SetVbiPage( priv->p_es_out_display, param.vbi_page.id,
                               param.vbi_page.page );
            break;
        case INPUT_CONTROL_SET_VBI_TRANSPARENCY:
            es_out_SetVbiTransparency( priv->p_es_out_display,
                                       param.vbi_transparency.id,
                                       param.vbi_transparency.enabled );
            break;

        case INPUT_CONTROL_NAV_ACTIVATE:
        case INPUT_CONTROL_NAV_UP:
        case INPUT_CONTROL_NAV_DOWN:
        case INPUT_CONTROL_NAV_LEFT:
        case INPUT_CONTROL_NAV_RIGHT:
        case INPUT_CONTROL_NAV_POPUP:
        case INPUT_CONTROL_NAV_MENU:
            ControlNav( p_input, i_type );
            break;

        default:
            msg_Err( p_input, "not yet implemented" );
            break;
    }

    ControlRelease( i_type, &param );
    return b_force_update;
}

/*****************************************************************************
 * UpdateTitleSeekpoint
 *****************************************************************************/
static int UpdateTitleSeekpoint( input_thread_t *p_input,
                                 int i_title, int i_seekpoint )
{
    int i_title_end = input_priv(p_input)->master->i_title_end -
                        input_priv(p_input)->master->i_title_offset;
    int i_seekpoint_end = input_priv(p_input)->master->i_seekpoint_end -
                            input_priv(p_input)->master->i_seekpoint_offset;

    if( i_title_end >= 0 && i_seekpoint_end >= 0 )
    {
        if( i_title > i_title_end ||
            ( i_title == i_title_end && i_seekpoint > i_seekpoint_end ) )
            return VLC_DEMUXER_EOF;
    }
    else if( i_seekpoint_end >= 0 )
    {
        if( i_seekpoint > i_seekpoint_end )
            return VLC_DEMUXER_EOF;
    }
    else if( i_title_end >= 0 )
    {
        if( i_title > i_title_end )
            return VLC_DEMUXER_EOF;
    }
    return VLC_DEMUXER_SUCCESS;
}
/*****************************************************************************
 * Update*FromDemux:
 *****************************************************************************/
static int UpdateTitleSeekpointFromDemux( input_thread_t *p_input )
{
    demux_t *p_demux = input_priv(p_input)->master->p_demux;

    /* TODO event-like */
    if( demux_TestAndClearFlags( p_demux, INPUT_UPDATE_TITLE ) )
        input_SendEventTitle( p_input, &(struct vlc_input_event_title) {
            .action = VLC_INPUT_TITLE_SELECTED,
            .selected_idx = demux_GetTitle( p_demux ),
        });

    if( demux_TestAndClearFlags( p_demux, INPUT_UPDATE_SEEKPOINT ) )
        input_SendEventSeekpoint( p_input, demux_GetTitle( p_demux ),
                                  demux_GetSeekpoint( p_demux ) );

    return UpdateTitleSeekpoint( p_input,
                                 demux_GetTitle( p_demux ),
                                 demux_GetSeekpoint( p_demux ) );
}

static void UpdateGenericFromDemux( input_thread_t *p_input )
{
    demux_t *p_demux = input_priv(p_input)->master->p_demux;

    if( demux_TestAndClearFlags( p_demux, INPUT_UPDATE_META ) )
        InputUpdateMeta( p_input, p_demux );

    {
        double quality;
        double strength;

        if( !demux_Control( p_demux, DEMUX_GET_SIGNAL, &quality, &strength ) )
            input_SendEventSignal( p_input, quality, strength );
    }
}

static void UpdateTitleListfromDemux( input_thread_t *p_input )
{
    input_thread_private_t *priv = input_priv(p_input);
    input_source_t *in = priv->master;

    /* Delete the preexisting titles */
    bool had_titles = in->i_title > 0;
    if( had_titles )
    {
        for( int i = 0; i < in->i_title; i++ )
            vlc_input_title_Delete( in->title[i] );
    }
    TAB_CLEAN( in->i_title, in->title );

    /* Get the new title list */
    if( demux_Control( in->p_demux, DEMUX_GET_TITLE_INFO,
                       &in->title, &in->i_title,
                       &in->i_title_offset, &in->i_seekpoint_offset ) )
        TAB_INIT( in->i_title, in->title );
    else
        in->b_title_demux = true;

    InitTitle( p_input, had_titles );
}

static int
InputStreamHandleAnchor( input_thread_t *p_input, input_source_t *source,
                         stream_t **stream, char const *anchor )
{
    char const* extra;
    if( stream_extractor_AttachParsed( stream, anchor, &extra ) )
    {
        msg_Err( p_input, "unable to attach stream-extractors for %s",
            (*stream)->psz_url );

        return VLC_EGENERIC;
    }

    if( vlc_stream_directory_Attach( stream, NULL ) )
        msg_Dbg( p_input, "attachment of directory-extractor failed for %s",
            (*stream)->psz_url );

    MRLSections( extra ? extra : "",
        &source->i_title_start, &source->i_title_end,
        &source->i_seekpoint_start, &source->i_seekpoint_end );

    return VLC_SUCCESS;
}

static demux_t *InputDemuxNew( input_thread_t *p_input, es_out_t *p_es_out,
                               input_source_t *p_source, const char *url,
                               const char *psz_demux, const char *psz_anchor )
{
    input_thread_private_t *priv = input_priv(p_input );
    vlc_object_t *obj = VLC_OBJECT(p_input);

    /* create the underlying access stream */
    stream_t *p_stream = stream_AccessNew( obj, p_input, p_es_out,
                                           priv->type == INPUT_TYPE_PREPARSING,
                                           url );
    if( p_stream == NULL )
        return NULL;

    p_stream = stream_FilterAutoNew( p_stream );

    if(( p_stream->ops != NULL && (p_stream->ops->stream.read == NULL &&
                    p_stream->ops->stream.block == NULL && p_stream->ops->stream.readdir == NULL))
                || ( p_stream->ops == NULL && (p_stream->pf_read == NULL && p_stream->pf_block == NULL &&
                        p_stream->pf_readdir == NULL)) )
    {   /* Combined access/demux, no stream filtering */
        MRLSections( psz_anchor,
                     &p_source->i_title_start, &p_source->i_title_end,
                    &p_source->i_seekpoint_start, &p_source->i_seekpoint_end );
        return p_stream;
    }

    /* attach explicit stream filters to stream */
    char *psz_filters = var_InheritString( p_input, "stream-filter" );
    if( psz_filters )
    {
        p_stream = stream_FilterChainNew( p_stream, psz_filters );
        free( psz_filters );
    }

    /* handle anchors */
    if( InputStreamHandleAnchor( p_input, p_source, &p_stream, psz_anchor ) )
        goto error;

    /* attach conditional record stream-filter */
    if( var_InheritBool( p_input, "input-record-native" ) )
        p_stream = stream_FilterChainNew( p_stream, "record" );

    /* create a regular demux with the access stream created */
    demux_t *demux = demux_NewAdvanced( obj, p_input, psz_demux, url, p_stream,
                                        p_es_out, priv->type == INPUT_TYPE_PREPARSING );
    if( demux != NULL )
        return demux;

error:
    vlc_stream_Delete( p_stream );
    return NULL;
}

static void input_SplitMRL( const char **, const char **, const char **,
                            const char **, char * );

static input_source_t *InputSourceNew( const char *psz_mrl )
{
    input_source_t *in = calloc(1, sizeof(*in) );
    if( unlikely(in == NULL) )
        return NULL;

    vlc_atomic_rc_init( &in->rc );

    if( psz_mrl )
    {
        /* Use the MD5 sum of the complete source URL as an identifier. */
        vlc_hash_md5_t md5;

        in->str_id = malloc(VLC_HASH_MD5_DIGEST_HEX_SIZE);
        if( !in->str_id )
        {
            free( in );
            return NULL;
        }

        vlc_hash_md5_Init( &md5 );
        vlc_hash_md5_Update( &md5, psz_mrl, strlen( psz_mrl ) );
        vlc_hash_FinishHex( &md5, in->str_id );
    }

    in->i_normal_time = VLC_TICK_0;

    return in;
}

static int InputSourceInit( input_source_t *in, input_thread_t *p_input,
                            const char *psz_mrl,
                            const char *psz_forced_demux, bool b_in_can_fail )
{
    input_thread_private_t *priv = input_priv(p_input);
    const char *psz_access, *psz_demux, *psz_path, *psz_anchor = NULL;
    const bool master = priv->master == in;

    assert( psz_mrl );
    char *psz_dup = strdup( psz_mrl );
    char *psz_demux_var = NULL;

    if( psz_dup == NULL )
        return VLC_ENOMEM;

    /* Split uri */
    input_SplitMRL( &psz_access, &psz_demux, &psz_path, &psz_anchor, psz_dup );

    if( psz_demux == NULL || psz_demux[0] == '\0' )
        psz_demux = psz_demux_var = var_InheritString( p_input, "demux" );

    if( psz_forced_demux != NULL )
        psz_demux = psz_forced_demux;

    if( psz_demux == NULL )
        psz_demux = "any";

    msg_Dbg( p_input, "`%s' gives access `%s' demux `%s' path `%s'",
             psz_mrl, psz_access, psz_demux, psz_path );

    if( master /* XXX ugly */)
    {   /* On master stream only, use input-list */
        char *str = var_InheritString( p_input, "input-list" );
        if( str != NULL )
        {
            char *list;

            var_Create( p_input, "concat-list", VLC_VAR_STRING );
            if( likely(asprintf( &list, "%s://%s,%s", psz_access, psz_path,
                                 str ) >= 0) )
            {
                 var_SetString( p_input, "concat-list", list );
                 free( list );
            }
            free( str );
            psz_access = "concat";
        }
    }

    if( strcasecmp( psz_access, "concat" ) )
    {   /* Autodetect extra files if none specified */
        int count;
        char **tab;

        TAB_INIT( count, tab );
        InputGetExtraFiles( p_input, &count, &tab, &psz_access, psz_mrl );
        if( count > 0 )
        {
            char *list = NULL;

            for( int i = 0; i < count; i++ )
            {
                char *str;
                if( asprintf( &str, "%s,%s", list ? list : psz_mrl,
                              tab[i] ) < 0 )
                    break;

                free( tab[i] );
                free( list );
                list = str;
            }

            var_Create( p_input, "concat-list", VLC_VAR_STRING );
            if( likely(list != NULL) )
            {
                var_SetString( p_input, "concat-list", list );
                free( list );
            }
        }
        TAB_CLEAN( count, tab );
    }

    char *url;
    if( likely(asprintf( &url, "%s://%s", psz_access, psz_path ) >= 0) )
    {
        es_out_t *es_out;
        if (!master )
            es_out = in->p_slave_es_out =
                input_EsOutSourceNew( priv->p_es_out, in );
        else
            es_out = priv->p_es_out;

        if( es_out )
            in->p_demux = InputDemuxNew( p_input, es_out, in, url,
                                         psz_demux, psz_anchor );
        free( url );
    }
    else
        in->p_demux = NULL;

    free( psz_demux_var );
    free( psz_dup );

    if( in->p_demux == NULL )
    {
        if( !b_in_can_fail && !input_Stopped( p_input ) )
            vlc_dialog_display_error( p_input, _("Your media can't be opened"),
                                      _("VLC is unable to open the MRL '%s'."
                                      " Check the log for details."), psz_mrl );
        if( in->p_slave_es_out )
        {
            es_out_Delete( in->p_slave_es_out );
            in->p_slave_es_out = NULL;
        }
        return VLC_EGENERIC;
    }

    char *psz_demux_chain = NULL;
    if( priv->p_renderer )
    {
        const char* psz_renderer_demux = vlc_renderer_item_demux_filter(
                    priv->p_renderer );
        if( psz_renderer_demux )
            psz_demux_chain = strdup( psz_renderer_demux );
    }
    if( !psz_demux_chain )
        psz_demux_chain = var_GetNonEmptyString(p_input, "demux-filter");
    if( psz_demux_chain != NULL ) /* add the chain of demux filters */
    {
        in->p_demux = demux_FilterChainNew( in->p_demux, psz_demux_chain );
        free( psz_demux_chain );

        if( in->p_demux == NULL )
        {
            msg_Err(p_input, "Failed to create demux filter");
            if( in->p_slave_es_out )
            {
                es_out_Delete( in->p_slave_es_out );
                in->p_slave_es_out = NULL;
            }
            return VLC_EGENERIC;
        }
    }

    /* Get infos from (access_)demux */
    if( demux_Control( in->p_demux, DEMUX_CAN_CONTROL_PACE,
                       &in->b_can_pace_control ) )
        in->b_can_pace_control = false;

    const bool b_can_demux = in->p_demux->ops != NULL ?
        in->p_demux->ops->demux.demux != NULL : in->p_demux->pf_demux != NULL;

    /* Threaded and directory demuxers do not have pace control */
    assert( b_can_demux || !in->b_can_pace_control );

    if( !in->b_can_pace_control )
    {
        if( demux_Control( in->p_demux, DEMUX_CAN_CONTROL_RATE,
                           &in->b_can_rate_control ) )
        {
            in->b_can_rate_control = false;
            in->b_rescale_ts = true;
        }
        else
            in->b_rescale_ts = !in->b_can_rate_control;
    }
    else
    {
        in->b_can_rate_control = true;
        in->b_rescale_ts = true;
    }

    /* Set record capabilities */
    if( demux_Control( in->p_demux, DEMUX_CAN_RECORD, &in->b_can_stream_record ) )
        in->b_can_stream_record = false;
    if( !var_GetBool( p_input, "input-record-native" ) )
        in->b_can_stream_record = false;

    demux_Control( in->p_demux, DEMUX_CAN_PAUSE, &in->b_can_pause );

    /* get attachment
     * FIXME improve for preparsing: move it after GET_META and check psz_arturl */
    if( input_priv(p_input)->type != INPUT_TYPE_PREPARSING )
    {
        if( demux_Control( in->p_demux, DEMUX_GET_TITLE_INFO,
                           &in->title, &in->i_title,
                           &in->i_title_offset, &in->i_seekpoint_offset ))
        {
            TAB_INIT( in->i_title, in->title );
        }
        else
        {
            in->b_title_demux = true;
        }

        if ( demux_Control( in->p_demux, DEMUX_GET_PTS_DELAY, &in->i_pts_delay )
             != VLC_SUCCESS )
            in->i_pts_delay = 0;
        if( in->i_pts_delay > INPUT_PTS_DELAY_MAX )
            in->i_pts_delay = INPUT_PTS_DELAY_MAX;
        else if( in->i_pts_delay < 0 )
            in->i_pts_delay = 0;
    }

    if( demux_Control( in->p_demux, DEMUX_GET_FPS, &in->f_fps ) )
        in->f_fps = 0.f;

    if( var_GetInteger( p_input, "clock-synchro" ) != -1 )
        in->b_can_pace_control = !var_GetInteger( p_input, "clock-synchro" );

    return VLC_SUCCESS;
}

input_source_t *input_source_Hold( input_source_t *in )
{
    vlc_atomic_rc_inc( &in->rc );
    return in;
}

void input_source_Release( input_source_t *in )
{
    if( vlc_atomic_rc_dec( &in->rc ) )
    {
        free( in->str_id );
        free( in );
    }
}

const char *input_source_GetStrId( input_source_t *in )
{
    return in->str_id;
}

int input_source_GetNewAutoId( input_source_t *in )
{
    return in->auto_id++;
}

bool input_source_IsAutoSelected( input_source_t *in )
{
    return in->autoselected;
}

/*****************************************************************************
 * InputSourceDestroy:
 *****************************************************************************/
static void InputSourceDestroy( input_source_t *in )
{
    int i;

    if( in->p_demux )
        demux_Delete( in->p_demux );
    if( in->p_slave_es_out )
        es_out_Delete( in->p_slave_es_out );

    if( in->i_title > 0 )
    {
        for( i = 0; i < in->i_title; i++ )
            vlc_input_title_Delete( in->title[i] );
    }
    TAB_CLEAN( in->i_title, in->title );
}

/*****************************************************************************
 * InputSourceMeta:
 *****************************************************************************/
static void InputSourceMeta( input_thread_t *p_input,
                             input_source_t *p_source, vlc_meta_t *p_meta )
{
    demux_t *p_demux = p_source->p_demux;

    /* XXX Remember that checking against p_item->p_meta->i_status & ITEM_PREPARSED
     * is a bad idea */

    bool has_meta = false;

    /* Read demux meta */
    if( !demux_Control( p_demux, DEMUX_GET_META, p_meta ) )
        has_meta = true;

    bool has_unsupported;
    if( demux_Control( p_demux, DEMUX_HAS_UNSUPPORTED_META, &has_unsupported ) )
        has_unsupported = true;

    /* If the demux report unsupported meta data, or if we don't have meta data
     * try an external "meta reader" */
    if( has_meta && !has_unsupported )
        return;

    demux_meta_t *p_demux_meta =
        vlc_custom_create( p_input, sizeof( *p_demux_meta ), "demux meta" );
    if( unlikely(p_demux_meta == NULL) )
        return;
    p_demux_meta->p_item = input_priv(p_input)->p_item;

    module_t *p_id3 = module_need( p_demux_meta, "meta reader", NULL, false );
    if( p_id3 )
    {
        if( p_demux_meta->p_meta )
        {
            vlc_meta_Merge( p_meta, p_demux_meta->p_meta );
            vlc_meta_Delete( p_demux_meta->p_meta );
        }

        if( p_demux_meta->i_attachments > 0 )
        {
            vlc_mutex_lock( &input_priv(p_input)->p_item->lock );
            AppendAttachment( p_input, p_demux_meta->i_attachments,
                              p_demux_meta->attachments );
            vlc_mutex_unlock( &input_priv(p_input)->p_item->lock );
        }
        module_unneed( p_demux_meta, p_id3 );
    }
    vlc_object_delete(p_demux_meta);
}


static void SlaveDemux( input_thread_t *p_input )
{
    input_thread_private_t *priv = input_priv(p_input);
    vlc_tick_t i_time;
    int i;

    if( demux_Control( input_priv(p_input)->master->p_demux, DEMUX_GET_TIME, &i_time ) )
    {
        msg_Err( p_input, "demux doesn't like DEMUX_GET_TIME" );
        return;
    }

    for( i = 0; i < input_priv(p_input)->i_slave; i++ )
    {
        input_source_t *in = input_priv(p_input)->slave[i];
        int i_ret;

        if( in->b_eof )
            continue;

        if( priv->slave_subs_rate != in->sub_rate )
        {
            if( in->b_slave_sub && in->b_can_rate_control )
            {
                if( in->sub_rate != 0 ) /* Don't reset when it's the first time */
                    es_out_Control( priv->p_es_out, ES_OUT_RESET_PCR );
                float new_rate = priv->slave_subs_rate;
                demux_Control( in->p_demux, DEMUX_SET_RATE, &new_rate );
            }
            in->sub_rate = priv->slave_subs_rate;
        }


        /* Call demux_Demux until we have read enough data */
        if( demux_Control( in->p_demux, DEMUX_SET_NEXT_DEMUX_TIME, i_time ) )
        {
            for( ;; )
            {
                vlc_tick_t i_stime;
                if( demux_Control( in->p_demux, DEMUX_GET_TIME, &i_stime ) )
                {
                    msg_Err( p_input, "slave[%d] doesn't like "
                             "DEMUX_GET_TIME -> EOF", i );
                    i_ret = 0;
                    break;
                }

                if( i_stime >= i_time )
                {
                    i_ret = 1;
                    break;
                }

                if( ( i_ret = demux_Demux( in->p_demux ) ) <= 0 )
                    break;
            }
        }
        else
        {
            i_ret = demux_Demux( in->p_demux );
        }

        if( i_ret <= 0 )
        {
            msg_Dbg( p_input, "slave %d EOF", i );
            in->b_eof = true;
        }
    }
}

static void SlaveSeek( input_thread_t *p_input )
{
    vlc_tick_t i_time;
    int i;

    if( demux_Control( input_priv(p_input)->master->p_demux, DEMUX_GET_TIME, &i_time ) )
    {
        msg_Err( p_input, "demux doesn't like DEMUX_GET_TIME" );
        return;
    }

    for( i = 0; i < input_priv(p_input)->i_slave; i++ )
    {
        input_source_t *in = input_priv(p_input)->slave[i];

        if( demux_Control( in->p_demux, DEMUX_SET_TIME, i_time, true ) )
        {
            if( !in->b_eof )
                msg_Err( p_input, "seek failed for slave %d -> EOF", i );
            in->b_eof = true;
        }
        else
        {
            in->b_eof = false;
        }
    }
}

/*****************************************************************************
 * InputMetaUser:
 *****************************************************************************/
static void InputMetaUser( input_thread_t *p_input, vlc_meta_t *p_meta )
{
    static const struct { int i_meta; const char *psz_name; } p_list[] = {
        { vlc_meta_Title,       "meta-title" },
        { vlc_meta_Artist,      "meta-artist" },
        { vlc_meta_Genre,       "meta-genre" },
        { vlc_meta_Copyright,   "meta-copyright" },
        { vlc_meta_Description, "meta-description" },
        { vlc_meta_Date,        "meta-date" },
        { vlc_meta_URL,         "meta-url" },
        { 0, NULL }
    };

    /* Get meta information from user */
    for( int i = 0; p_list[i].psz_name; i++ )
    {
        char *psz_string = var_GetNonEmptyString( p_input, p_list[i].psz_name );
        if( !psz_string )
            continue;

        EnsureUTF8( psz_string );
        vlc_meta_Set( p_meta, p_list[i].i_meta, psz_string );
        free( psz_string );
    }
}

static void AppendAttachment( input_thread_t *p_input, int i_new,
                              input_attachment_t **pp_new )
{
    input_thread_private_t *priv = input_priv( p_input );
    int i_attachment = priv->i_attachment;
    int i;

    if ( i_attachment + i_new == 0 )
    {
        free( pp_new );
        return;
    }

    input_attachment_t **pp_att = realloc( priv->attachment,
                    sizeof(*pp_att) * ( i_attachment + i_new ) );
    if( likely(pp_att) )
    {
        priv->attachment = pp_att;
        for( i = 0; i < i_new; i++ )
        {
            pp_att[i_attachment++] = pp_new[i];
        }
        /* */
        priv->i_attachment = i_attachment;
        vlc_event_send( &priv->p_item->event_manager, &(vlc_event_t) {
            .type = vlc_InputItemAttachmentsFound,
            .u.input_item_attachments_found.attachments = pp_new,
            .u.input_item_attachments_found.count = i_new } );
        free( pp_new );
        return;
    }

    /* on alloc errors */
    for( i = 0; i < i_new; i++ )
        vlc_input_attachment_Release( pp_new[i] );
    free( pp_new );
}

/*****************************************************************************
 * InputUpdateMeta: merge p_item meta data with p_meta taking care of
 * arturl and locking issue.
 *****************************************************************************/
static void InputUpdateMeta( input_thread_t *p_input, demux_t *p_demux )
{
    vlc_meta_t *p_meta = vlc_meta_New();
    if( unlikely(p_meta == NULL) )
        return;

    demux_Control( p_demux, DEMUX_GET_META, p_meta );

    /* If metadata changed, then the attachments might have changed.
       We need to update them in case they contain album art. */
    input_attachment_t **attachment;
    int i_attachment;

    if( !demux_Control( p_demux, DEMUX_GET_ATTACHMENTS,
                        &attachment, &i_attachment ) )
    {
        input_thread_private_t *priv = input_priv(p_input);
        vlc_mutex_lock( &priv->p_item->lock );
        int nb_new = 0;
        for ( int i = 0; i < i_attachment; ++i )
        {
            bool is_new = true;
            for( int j = 0; j < priv->i_attachment; ++j )
            {
                if( priv->attachment[j] == attachment[i] )
                {
                    vlc_input_attachment_Release( attachment[i] );
                    is_new = false;
                    break;
                }
            }
            if( is_new )
                attachment[nb_new++] = attachment[i];
        }
        AppendAttachment( p_input, nb_new, attachment );
        vlc_mutex_unlock( &priv->p_item->lock );
    }

    es_out_ControlSetMeta( input_priv(p_input)->p_es_out, p_meta );
    vlc_meta_Delete( p_meta );
}

/*****************************************************************************
 * InputGetExtraFiles
 *  Autodetect extra input list
 *****************************************************************************/
static void InputGetExtraFilesPattern( input_thread_t *p_input,
                                       int *pi_list, char ***pppsz_list,
                                       const char *uri,
                                       const char *psz_match,
                                       const char *psz_format,
                                       int i_start, int i_stop )
{
    int i_list;
    char **ppsz_list;
    TAB_INIT( i_list, ppsz_list );

    /* Remove the extension */
    size_t end = strlen(uri) - strlen(psz_match);
    if (unlikely(end > INT_MAX))
        goto exit;

    /* Try to list files */
    for( int i = i_start; i <= i_stop; i++ )
    {
        char *url;
        if( asprintf( &url, psz_format, (int)end, uri, i ) < 0 )
            break;

        char *filepath = vlc_uri2path(url);

        struct stat st;
        if( filepath == NULL ||
            vlc_stat( filepath, &st ) || !S_ISREG( st.st_mode ) || !st.st_size )
        {
            free( filepath );
            free( url );
            break;
        }

        msg_Dbg( p_input, "Detected extra file `%s'", filepath );
        free( filepath );
        TAB_APPEND( i_list, ppsz_list, url );
    }
exit:
    *pi_list = i_list;
    *pppsz_list = ppsz_list;
}

static void InputGetExtraFiles( input_thread_t *p_input,
                                int *pi_list, char ***pppsz_list,
                                const char **ppsz_access, const char *mrl )
{
    static const struct pattern
    {
        const char *psz_access_force;
        const char *psz_match;
        const char *psz_format;
        int i_start;
        int i_stop;
    } patterns[] = {
        /* XXX the order is important */
        { "concat", ".001", "%.*s.%.3d", 2, 999 },
        { NULL, ".part1.rar","%.*s.part%.1d.rar", 2, 9 },
        { NULL, ".part01.rar","%.*s.part%.2d.rar", 2, 99, },
        { NULL, ".part001.rar", "%.*s.part%.3d.rar", 2, 999 },
        { NULL, ".rar", "%.*s.r%.2d", 0, 99 },
        { "concat", ".mts", "%.*s.mts%d", 1, 999 },
    };

    assert(mrl != NULL);
    TAB_INIT( *pi_list, *pppsz_list );

    if( **ppsz_access && strcmp( *ppsz_access, "file" ) )
        return;

    const size_t i_path = strlen(mrl);

    for( size_t i = 0; i < ARRAY_SIZE( patterns ); ++i )
    {
        const struct pattern* pat = &patterns[i];
        const size_t i_ext = strlen( pat->psz_match );

        if( i_path < i_ext )
            continue;

        if( !strcmp( &mrl[i_path-i_ext], pat->psz_match ) )
        {
            InputGetExtraFilesPattern( p_input, pi_list, pppsz_list, mrl,
                pat->psz_match, pat->psz_format, pat->i_start, pat->i_stop );

            if( *pi_list > 0 && pat->psz_access_force )
                *ppsz_access = pat->psz_access_force;
            return;
        }
    }
}

/* */
static void input_ChangeState( input_thread_t *p_input, int i_state,
                               vlc_tick_t state_date )
{
    if( input_priv(p_input)->i_state == i_state )
        return;

    input_priv(p_input)->i_state = i_state;
    if( i_state == ERROR_S )
        input_item_SetErrorWhenReading( input_priv(p_input)->p_item, true );
    if (i_state == END_S || i_state == ERROR_S)
        input_SendEventCapabilities( p_input, 0 );
    input_SendEventState( p_input, i_state, state_date );
}


/*****************************************************************************
 * MRLSplit: parse the access, demux and url part of the
 *           Media Resource Locator.
 *****************************************************************************/
static void input_SplitMRL( const char **access, const char **demux,
                            const char **path, const char **anchor, char *buf )
{
    char *p;

    /* Separate <path> from <access>[/<demux>]:// */
    p = strchr( buf, ':');
    if( p != NULL )
    {
        *(p++) = '\0'; /* skips ':' */
        *path = p + (strncmp(p, "//", 2) ? 0 : 2); /* skips "//" */

        /* Remove HTML anchor if present (not supported).
         * The hash symbol itself should be URI-encoded. */
        p = strchr( p, '#' );
        if( p != NULL )
        {
            *(p++) = '\0';
            *anchor = p;
        }
        else
            *anchor = "";
    }
    else
    {
#ifndef NDEBUG
        fprintf( stderr, "%s(\"%s\") probably not a valid URI!\n", __func__,
                 buf );
#endif
        /* Note: this is a valid non const pointer to "": */
        *path = buf + strlen( buf );
    }

    /* Separate access from demux */
    p = strchr( buf, '/' );
    if( p != NULL )
    {
        *(p++) = '\0';
        if( p[0] == '$' )
            p++;
        *demux = p;
    }
    else
        *demux = "";

    /* We really don't want module name substitution here! */
    p = buf;
    if( p[0] == '$' )
        p++;
    *access = p;
}

static const char *MRLSeekPoint( const char *str, int *title, int *chapter )
{
    char *end;
    unsigned long u;

    /* Look for the title */
    u = strtoul( str, &end, 0 );
    *title = (str == end || u > (unsigned long)INT_MAX) ? -1 : (int)u;
    str = end;

    /* Look for the chapter */
    if( *str == ':' )
    {
        str++;
        u = strtoul( str, &end, 0 );
        *chapter = (str == end || u > (unsigned long)INT_MAX) ? -1 : (int)u;
        str = end;
    }
    else
        *chapter = -1;

    return str;
}


/*****************************************************************************
 * MRLSections: parse title and seekpoint info from the Media Resource Locator.
 *
 * Syntax:
 * [url][@[title_start][:chapter_start][-[title_end][:chapter_end]]]
 *****************************************************************************/
static void MRLSections( const char *p,
                         int *pi_title_start, int *pi_title_end,
                         int *pi_chapter_start, int *pi_chapter_end )
{
    *pi_title_start = *pi_title_end = *pi_chapter_start = *pi_chapter_end = -1;

    int title_start, chapter_start, title_end, chapter_end;

    if( !p )
        return;

    if( *p != '-' )
        p = MRLSeekPoint( p, &title_start, &chapter_start );
    else
        title_start = chapter_start = -1;

    if( *p == '-' )
        p = MRLSeekPoint( p + 1, &title_end, &chapter_end );
    else
        title_end = chapter_end = -1;

    if( *p ) /* syntax error */
        return;

    *pi_title_start = title_start;
    *pi_title_end = title_end;
    *pi_chapter_start = chapter_start;
    *pi_chapter_end = chapter_end;
}

static int input_SlaveSourceAdd( input_thread_t *p_input,
                                 enum slave_type i_type, const char *psz_uri,
                                 unsigned i_flags )
{
    input_thread_private_t *priv = input_priv(p_input);
    const char *psz_forced_demux;
    const bool b_can_fail = i_flags & SLAVE_ADD_CANFAIL;
    const bool b_forced = i_flags & SLAVE_ADD_FORCED;
    const bool b_set_time = i_flags & SLAVE_ADD_SET_TIME;

    switch( i_type )
    {
    case SLAVE_TYPE_SPU:
        psz_forced_demux = "subtitle";
        break;
    case SLAVE_TYPE_GENERIC:
        psz_forced_demux = NULL;
        break;
    default:
        vlc_assert_unreachable();
    }

    msg_Dbg( p_input, "loading %s slave: %s (forced: %d)",
             i_type == SLAVE_TYPE_SPU ? "spu" : "generic", psz_uri, b_forced );

    input_source_t *p_source = InputSourceNew( psz_uri );
    if( !p_source )
        return VLC_EGENERIC;

    if( b_forced )
        p_source->autoselected = true;

    int ret = InputSourceInit( p_source, p_input, psz_uri,
                               psz_forced_demux,
                               b_can_fail || psz_forced_demux );

    if( psz_forced_demux && ret != VLC_SUCCESS )
        ret = InputSourceInit( p_source, p_input, psz_uri, NULL, b_can_fail );

    if( ret != VLC_SUCCESS )
    {
        msg_Warn( p_input, "failed to add %s as slave", psz_uri );
        goto error;
    }

    if( i_type == SLAVE_TYPE_GENERIC )
    {
        if( b_set_time )
        {
            vlc_tick_t i_time;

            /* Set position */
            if( demux_Control( priv->master->p_demux, DEMUX_GET_TIME, &i_time ) )
            {
                msg_Err( p_input, "demux doesn't like DEMUX_GET_TIME" );
                goto error;
            }

            if( demux_Control( p_source->p_demux,
                               DEMUX_SET_TIME, i_time, true ) )
            {
                msg_Err( p_input, "seek failed for new slave" );
                goto error;
            }
        }

        /* Get meta (access and demux) */
        InputUpdateMeta( p_input, p_source->p_demux );
    }
    else
        p_source->b_slave_sub = true;

    TAB_APPEND( priv->i_slave, priv->slave, p_source );

    return VLC_SUCCESS;

error:
    InputSourceDestroy( p_source );
    input_source_Release( p_source );
    return VLC_EGENERIC;
}

static char *input_SubtitleFile2Uri( input_thread_t *p_input,
                                     const char *psz_subtitle )
{
    /* if we are provided a subtitle.sub file,
     * see if we don't have a subtitle.idx and use it instead */
    char *psz_idxpath = NULL;
    char *psz_extension = strrchr( psz_subtitle, '.');
    if( psz_extension && strcmp( psz_extension, ".sub" ) == 0 )
    {
        psz_idxpath = strdup( psz_subtitle );
        if( psz_idxpath )
        {
            struct stat st;

            psz_extension = psz_extension - psz_subtitle + psz_idxpath;
            strcpy( psz_extension, ".idx" );

            if( !vlc_stat( psz_idxpath, &st ) && S_ISREG( st.st_mode ) )
            {
                msg_Dbg( p_input, "using %s as subtitle file instead of %s",
                         psz_idxpath, psz_subtitle );
                psz_subtitle = psz_idxpath;
            }
        }
    }

    char *psz_uri = vlc_path2uri( psz_subtitle, NULL );
    free( psz_idxpath );
    return psz_uri;
}

int input_GetAttachments(input_thread_t *input,
                         input_attachment_t ***attachments)
{
    input_thread_private_t *priv = input_priv(input);

    vlc_mutex_lock(&priv->p_item->lock);
    int attachments_count = priv->i_attachment;
    if (attachments_count <= 0)
    {
        vlc_mutex_unlock(&priv->p_item->lock);
        *attachments = NULL;
        return 0;
    }

    *attachments = vlc_alloc(attachments_count, sizeof(input_attachment_t*));
    if (!*attachments)
    {
        vlc_mutex_unlock(&priv->p_item->lock);
        return -1;
    }

    for (int i = 0; i < attachments_count; i++)
        (*attachments)[i] = vlc_input_attachment_Hold(priv->attachment[i]);

    vlc_mutex_unlock(&priv->p_item->lock);
    return attachments_count;
}

input_attachment_t *input_GetAttachment(input_thread_t *input, const char *name)
{
    input_thread_private_t *priv = input_priv(input);

    vlc_mutex_lock(&priv->p_item->lock);
    for (int i = 0; i < priv->i_attachment; i++)
    {
        if (!strcmp( priv->attachment[i]->psz_name, name))
        {
            input_attachment_t *attachment =
                vlc_input_attachment_Hold(priv->attachment[i] );
            vlc_mutex_unlock( &priv->p_item->lock );
            return attachment;
        }
    }
    vlc_mutex_unlock( &priv->p_item->lock );
    return NULL;
}

bool input_CanPaceControl(input_thread_t *input)
{
    input_thread_private_t *priv = input_priv(input);
    return priv->master->b_can_pace_control;
}
