media.c

VLC Player Source Code

        libvlc_exception_raise( p_e, "Can't create md's input_item" );
        return NULL;
    }

    p_md = libvlc_media_new_from_input_item( p_instance,
                p_input_item, p_e );

    /* The p_input_item is retained in libvlc_media_new_from_input_item */
    vlc_gc_decref( p_input_item );

    return p_md;
}

/**************************************************************************
 * Create a new media descriptor object
 **************************************************************************/
libvlc_media_t * libvlc_media_new_as_node(
                                   libvlc_instance_t *p_instance,
                                   const char * psz_name,
                                   libvlc_exception_t *p_e )
{
    input_item_t * p_input_item;
    libvlc_media_t * p_md;

    p_input_item = input_item_New( p_instance->p_libvlc_int, "vlc://nop", psz_name );

    if (!p_input_item)
    {
        libvlc_exception_raise( p_e, "Can't create md's input_item" );
        return NULL;
    }

    p_md = libvlc_media_new_from_input_item( p_instance,
                p_input_item, p_e );

    p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance, NULL );

    return p_md;
}

/**************************************************************************
 * Add an option to the media descriptor,
 * that will be used to determine how the media_player will read the
 * media. This allow to use VLC advanced reading/streaming
 * options in a per-media basis
 *
 * The options are detailled in vlc --long-help, for instance "--sout-all"
 **************************************************************************/
void libvlc_media_add_option(
                                   libvlc_media_t * p_md,
                                   const char * ppsz_option,
                                   libvlc_exception_t *p_e )
{
    VLC_UNUSED(p_e);
    input_item_AddOpt( p_md->p_input_item, ppsz_option,
                      VLC_INPUT_OPTION_UNIQUE|VLC_INPUT_OPTION_TRUSTED );
}

/**************************************************************************
 * Delete a media descriptor object
 **************************************************************************/
void libvlc_media_release( libvlc_media_t *p_md )
{
    if (!p_md)
        return;

    p_md->i_refcount--;

    if( p_md->i_refcount > 0 )
        return;

    if( p_md->p_subitems )
        libvlc_media_list_release( p_md->p_subitems );

    uninstall_input_item_observer( p_md );
    vlc_gc_decref( p_md->p_input_item );

    /* Construct the event */
    libvlc_event_t event;
    event.type = libvlc_MediaFreed;
    event.u.media_freed.md = p_md;

    /* Send the event */
    libvlc_event_send( p_md->p_event_manager, &event );

    libvlc_event_manager_release( p_md->p_event_manager );

    free( p_md );
}

/**************************************************************************
 * Retain a media descriptor object
 **************************************************************************/
void libvlc_media_retain( libvlc_media_t *p_md )
{
    if (!p_md)
        return;

    p_md->i_refcount++;
}

/**************************************************************************
 * Duplicate a media descriptor object
 **************************************************************************/
libvlc_media_t *
libvlc_media_duplicate( libvlc_media_t *p_md_orig )
{
    return libvlc_media_new_from_input_item(
        p_md_orig->p_libvlc_instance, p_md_orig->p_input_item, NULL );
}

/**************************************************************************
 * Get mrl from a media descriptor object
 **************************************************************************/
char *
libvlc_media_get_mrl( libvlc_media_t * p_md,
                                 libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);
    return input_item_GetURI( p_md->p_input_item );
}

/**************************************************************************
 * Getter for meta information
 **************************************************************************/

char * libvlc_media_get_meta( libvlc_media_t *p_md,
                                         libvlc_meta_t e_meta,
                                         libvlc_exception_t *p_e )
{
    char * psz_meta;
    VLC_UNUSED(p_e);

    /* XXX: locking */

    preparse_if_needed( p_md );

    psz_meta = input_item_GetMeta( p_md->p_input_item,
                                   libvlc_to_vlc_meta[e_meta] );

    if( e_meta == libvlc_meta_ArtworkURL && !psz_meta )
    {
        playlist_AskForArtEnqueue(
                libvlc_priv(p_md->p_libvlc_instance->p_libvlc_int)->p_playlist,
                p_md->p_input_item );
    }

    /* Should be integrated in core */
    if( !psz_meta && e_meta == libvlc_meta_Title && p_md->p_input_item->psz_name )
    {
        free( psz_meta );
        return strdup( p_md->p_input_item->psz_name );
    }

    return psz_meta;
}

/**************************************************************************
 * Getter for state information
 * Can be error, playing, buffering, NothingSpecial.
 **************************************************************************/

libvlc_state_t
libvlc_media_get_state( libvlc_media_t *p_md,
                                   libvlc_exception_t *p_e )
{
    VLC_UNUSED(p_e);
    return p_md->state;
}

/**************************************************************************
 * Setter for state information (LibVLC Internal)
 **************************************************************************/

void
libvlc_media_set_state( libvlc_media_t *p_md,
                                   libvlc_state_t state,
                                   libvlc_exception_t *p_e )
{
    libvlc_event_t event;
    VLC_UNUSED(p_e);

    p_md->state = state;

    /* Construct the event */
    event.type = libvlc_MediaStateChanged;
    event.u.media_state_changed.new_state = state;

    /* Send the event */
    libvlc_event_send( p_md->p_event_manager, &event );
}

/**************************************************************************
 * subitems
 **************************************************************************/
libvlc_media_list_t *
libvlc_media_subitems( libvlc_media_t * p_md,
                                  libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    if( p_md->p_subitems )
        libvlc_media_list_retain( p_md->p_subitems );
    return p_md->p_subitems;
}

/**************************************************************************
 * event_manager
 **************************************************************************/
libvlc_event_manager_t *
libvlc_media_event_manager( libvlc_media_t * p_md,
                                       libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    return p_md->p_event_manager;
}

/**************************************************************************
 * Get duration of media object.
 **************************************************************************/
int64_t
libvlc_media_get_duration( libvlc_media_t * p_md,
                                      libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    if( !p_md || !p_md->p_input_item)
    {
        libvlc_exception_raise( p_e, "No input item" );
        return -1;
    }

    return input_item_GetDuration( p_md->p_input_item );
}

/**************************************************************************
 * Get preparsed status for media object.
 **************************************************************************/
int
libvlc_media_is_preparsed( libvlc_media_t * p_md,
                                       libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    if( !p_md || !p_md->p_input_item)
    {
        libvlc_exception_raise( p_e, "No input item" );
        return false;
    }

    return input_item_IsPreparsed( p_md->p_input_item );
}

/**************************************************************************
 * Sets media descriptor's user_data. user_data is specialized data 
 * accessed by the host application, VLC.framework uses it as a pointer to 
 * an native object that references a libvlc_media_t pointer
 **************************************************************************/
void 
libvlc_media_set_user_data( libvlc_media_t * p_md,
                                       void * p_new_user_data,
                                       libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    if( p_md )
    {
        p_md->p_user_data = p_new_user_data;
    }
}

/**************************************************************************
 * Get media descriptor's user_data. user_data is specialized data 
 * accessed by the host application, VLC.framework uses it as a pointer to 
 * an native object that references a libvlc_media_t pointer
 **************************************************************************/
void *
libvlc_media_get_user_data( libvlc_media_t * p_md,
                                       libvlc_exception_t * p_e )
{
    VLC_UNUSED(p_e);

    if( p_md )
    {
        return p_md->p_user_data;
    }
    else
    {
        return NULL;
    }
}