item.c

VLC Player Source Code

/*****************************************************************************
 * item.c: input_item management
 *****************************************************************************
 * Copyright (C) 1998-2004 the VideoLAN team
 * $Id$
 *
 * Authors: Clément Stenac <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>

#include <vlc_common.h>
#include "vlc_playlist.h"
#include "vlc_interface.h"

#include "input_internal.h"

static void GuessType( input_item_t *p_item );

/** Stuff moved out of vlc_input.h -- FIXME: should probably not be inline
 * anyway. */
static inline void input_item_Init( vlc_object_t *p_o, input_item_t *p_i )
{
    memset( p_i, 0, sizeof(input_item_t) );
    p_i->psz_name = NULL;
    p_i->psz_uri = NULL;
    TAB_INIT( p_i->i_es, p_i->es );
    TAB_INIT( p_i->i_options, p_i->ppsz_options );
    p_i->optflagv = NULL, p_i->optflagc = 0;
    TAB_INIT( p_i->i_categories, p_i->pp_categories );

    p_i->i_type = ITEM_TYPE_UNKNOWN;
    p_i->b_fixed_name = true;

    p_i->p_stats = NULL;
    p_i->p_meta = NULL;

    vlc_mutex_init( &p_i->lock );
    vlc_event_manager_t * p_em = &p_i->event_manager;
    vlc_event_manager_init( p_em, p_i, p_o );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemMetaChanged );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemSubItemAdded );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemDurationChanged );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemPreparsedChanged );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemNameChanged );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemInfoChanged );
    vlc_event_manager_register_event_type( p_em, vlc_InputItemErrorWhenReadingChanged );
}

static inline void input_item_Clean( input_item_t *p_i )
{
    int i;

    vlc_event_manager_fini( &p_i->event_manager );

    free( p_i->psz_name );
    free( p_i->psz_uri );
    if( p_i->p_stats )
    {
        vlc_mutex_destroy( &p_i->p_stats->lock );
        free( p_i->p_stats );
    }

    if( p_i->p_meta )
        vlc_meta_Delete( p_i->p_meta );

    for( i = 0; i < p_i->i_options; i++ )
        free( p_i->ppsz_options[i] );
    TAB_CLEAN( p_i->i_options, p_i->ppsz_options );
    free( p_i->optflagv);

    for( i = 0; i < p_i->i_es; i++ )
    {
        es_format_Clean( p_i->es[i] );
        free( p_i->es[i] );
    }
    TAB_CLEAN( p_i->i_es, p_i->es );

    for( i = 0; i < p_i->i_categories; i++ )
    {
        info_category_t *p_category = p_i->pp_categories[i];
        int j;

        for( j = 0; j < p_category->i_infos; j++ )
        {
            struct info_t *p_info = p_category->pp_infos[j];

            free( p_info->psz_name);
            free( p_info->psz_value );
            free( p_info );
        }
        TAB_CLEAN( p_category->i_infos, p_category->pp_infos );

        free( p_category->psz_name );
        free( p_category );
    }
    TAB_CLEAN( p_i->i_categories, p_i->pp_categories );

    vlc_mutex_destroy( &p_i->lock );
}

void input_item_SetHasErrorWhenReading( input_item_t *p_i, bool error )
{
    vlc_event_t event;

    if( p_i->b_error_when_reading == error )
        return;

    p_i->b_error_when_reading = error;

    /* Notify interested third parties */
    event.type = vlc_InputItemErrorWhenReadingChanged;
    event.u.input_item_error_when_reading_changed.new_value = error;
    vlc_event_send( &p_i->event_manager, &event );
}

void input_item_SetMeta( input_item_t *p_i, vlc_meta_type_t meta_type, const char *psz_val )
{
    vlc_event_t event;

    vlc_mutex_lock( &p_i->lock );
    if( !p_i->p_meta )
        p_i->p_meta = vlc_meta_New();
    vlc_meta_Set( p_i->p_meta, meta_type, psz_val );
    vlc_mutex_unlock( &p_i->lock );

    /* Notify interested third parties */
    event.type = vlc_InputItemMetaChanged;
    event.u.input_item_meta_changed.meta_type = meta_type;
    vlc_event_send( &p_i->event_manager, &event );
}

/**
 * Get the item from an input thread
 */
input_item_t *input_GetItem( input_thread_t *p_input )
{
    assert( p_input && p_input->p );
    return p_input->p->input.p_item;
}

void input_item_CopyOptions( input_item_t *p_parent,
                                          input_item_t *p_child )
{
    int i;
    for( i = 0 ; i< p_parent->i_options; i++ )
    {
        char *psz_option= strdup( p_parent->ppsz_options[i] );
        if( !strcmp( psz_option, "meta-file" ) )
        {
            free( psz_option );
            continue;
        }
        p_child->i_options++;
        p_child->ppsz_options = (char **)realloc( p_child->ppsz_options,
                                                  p_child->i_options *
                                                  sizeof( char * ) );
        p_child->ppsz_options[p_child->i_options-1] = psz_option;
        p_child->optflagc++;
        p_child->optflagv = (uint8_t *)realloc( p_child->optflagv,
                                                p_child->optflagc );
        p_child->optflagv[p_child->optflagc - 1] = p_parent->optflagv[i];
    }
}

void input_item_SetName( input_item_t *p_item, const char *psz_name )
{
    free( p_item->psz_name );
    p_item->psz_name = strdup( psz_name );
}

/* This won't hold the item, but can tell to interested third parties
 * Like the playlist, that there is a new sub item. With this design
 * It is not the input item's responsability to keep all the ref of
 * the input item children. */
void input_item_AddSubItem( input_item_t *p_parent,
                                         input_item_t *p_child )
{
    vlc_event_t event;

    p_parent->i_type = ITEM_TYPE_PLAYLIST;

    /* Notify interested third parties */
    event.type = vlc_InputItemSubItemAdded;
    event.u.input_item_subitem_added.p_new_child = p_child;
    vlc_event_send( &p_parent->event_manager, &event );
}

int input_item_AddOption (input_item_t *item, const char *str)
{
    return input_item_AddOpt (item, str, VLC_INPUT_OPTION_TRUSTED);
}

bool input_item_HasErrorWhenReading (input_item_t *item)
{
    return item->b_error_when_reading;
}

bool input_item_MetaMatch( input_item_t *p_i, vlc_meta_type_t meta_type, const char *psz )
{
    vlc_mutex_lock( &p_i->lock );
    if( !p_i->p_meta )
    {
        vlc_mutex_unlock( &p_i->lock );
        return false;
    }
    const char * meta = vlc_meta_Get( p_i->p_meta, meta_type );
    bool ret = meta && strcasestr( meta, psz );
    vlc_mutex_unlock( &p_i->lock );

    return ret;
}

char * input_item_GetMeta( input_item_t *p_i, vlc_meta_type_t meta_type )
{
    char * psz = NULL;
    vlc_mutex_lock( &p_i->lock );

    if( !p_i->p_meta )
    {
        vlc_mutex_unlock( &p_i->lock );
        return NULL;
    }

    if( vlc_meta_Get( p_i->p_meta, meta_type ) )
        psz = strdup( vlc_meta_Get( p_i->p_meta, meta_type ) );

    vlc_mutex_unlock( &p_i->lock );
    return psz;
}

char * input_item_GetName( input_item_t * p_i )
{
    vlc_mutex_lock( &p_i->lock );
    char *psz_s = p_i->psz_name ? strdup( p_i->psz_name ) : NULL;
    vlc_mutex_unlock( &p_i->lock );
    return psz_s;
}

char * input_item_GetURI( input_item_t * p_i )
{
    vlc_mutex_lock( &p_i->lock );
    char *psz_s = p_i->psz_uri ? strdup( p_i->psz_uri ) : NULL;
    vlc_mutex_unlock( &p_i->lock );
    return psz_s;
}

void input_item_SetURI( input_item_t * p_i, char * psz_uri )
{
    vlc_mutex_lock( &p_i->lock );
    free( p_i->psz_uri );
    p_i->psz_uri = strdup( psz_uri );
    vlc_mutex_unlock( &p_i->lock );
}

mtime_t input_item_GetDuration( input_item_t * p_i )
{
    vlc_mutex_lock( &p_i->lock );
    mtime_t i_duration = p_i->i_duration;
    vlc_mutex_unlock( &p_i->lock );
    return i_duration;
}

void input_item_SetDuration( input_item_t * p_i, mtime_t i_duration )
{
    bool send_event = false;

    vlc_mutex_lock( &p_i->lock );
    if( p_i->i_duration != i_duration )
    {
        p_i->i_duration = i_duration;
        send_event = true;
    }
    vlc_mutex_unlock( &p_i->lock );

    if ( send_event == true )
    {
        vlc_event_t event;
        event.type = vlc_InputItemDurationChanged;
        event.u.input_item_duration_changed.new_duration = i_duration;
        vlc_event_send( &p_i->event_manager, &event );
    }

    return;
}


bool input_item_IsPreparsed( input_item_t *p_i )
{