static int RandomCallback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *a )
{
(void)psz_cmd; (void)oldval; (void)newval; (void)a;
playlist_t *p_playlist = (playlist_t*)p_this;
bool random = newval.b_bool;
PL_LOCK;
if( !random ) {
pl_priv(p_playlist)->b_reset_currently_playing = true;
vlc_cond_signal( &pl_priv(p_playlist)->signal );
} else {
/* Shuffle and sync the playlist on activation of random mode.
* This preserves the current playing item, so that the user
* can return to it if needed. (See #4472)
*/
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_item_t *p_new = p_sys->status.p_item;
ResetCurrentlyPlaying( p_playlist, NULL );
if( p_new )
ResyncCurrentIndex( p_playlist, p_new );
}
PL_UNLOCK;
return VLC_SUCCESS;
}
static bool Next( playlist_t *p_playlist )
{
playlist_item_t *p_item = NextItem( p_playlist );
if( p_item == NULL )
return false;
msg_Dbg( p_playlist, "starting playback of new item" );
ResyncCurrentIndex( p_playlist, p_item );
return PlayItem( p_playlist, p_item );
}
static void LoopRequest( playlist_t *p_playlist, int i_status )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
assert( !p_sys->p_input );
/* No input. Several cases
* - No request, running status -> start new item
* - No request, stopped status -> collect garbage
* - Request, running requested -> start new item
* - Request, stopped requested -> collect garbage
*/
if( i_status == PLAYLIST_STOPPED )
{
p_sys->status.i_status = PLAYLIST_STOPPED;
vlc_cond_wait( &p_sys->signal, &p_sys->lock );
return;
}
playlist_item_t *p_item = NextItem( p_playlist );
if( p_item )
{
msg_Dbg( p_playlist, "starting playback of the new playlist item" );
ResyncCurrentIndex( p_playlist, p_item );
PlayItem( p_playlist, p_item );
return;
}
msg_Dbg( p_playlist, "nothing to play" );
p_sys->status.i_status = PLAYLIST_STOPPED;
if( var_InheritBool( p_playlist, "play-and-exit" ) )
{
msg_Info( p_playlist, "end of playlist, exiting" );
libvlc_Quit( p_playlist->p_libvlc );
}
}
/**
* Compute the next playlist item depending on
* the playlist course mode (forward, backward, random, view,...).
*
* \param p_playlist the playlist object
* \return nothing
*/
static playlist_item_t *NextItem( playlist_t *p_playlist )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_item_t *p_new = NULL;
/* Handle quickly a few special cases */
/* No items to play */
if( p_playlist->items.i_size == 0 )
{
msg_Info( p_playlist, "playlist is empty" );
return NULL;
}
/* Start the real work */
if( p_sys->request.b_request )
{
p_new = p_sys->request.p_item;
int i_skip = p_sys->request.i_skip;
PL_DEBUG( "processing request item: %s, node: %s, skip: %i",
PLI_NAME( p_sys->request.p_item ),
PLI_NAME( p_sys->request.p_node ), i_skip );
if( p_sys->request.p_node &&
p_sys->request.p_node != get_current_status_node( p_playlist ) )
{
set_current_status_node( p_playlist, p_sys->request.p_node );
p_sys->request.p_node = NULL;
p_sys->b_reset_currently_playing = true;
}
/* If we are asked for a node, go to it's first child */
if( i_skip == 0 && ( p_new == NULL || p_new->i_children != -1 ) )
{
i_skip++;
if( p_new != NULL )
{
p_new = playlist_GetNextLeaf( p_playlist, p_new, NULL, true, false );
for( int i = 0; i < p_playlist->current.i_size; i++ )
{
if( p_new == ARRAY_VAL( p_playlist->current, i ) )
{
p_playlist->i_current_index = i;
i_skip = 0;
}
}
}
}
if( p_sys->b_reset_currently_playing )
/* A bit too bad to reset twice ... */
ResetCurrentlyPlaying( p_playlist, p_new );
else if( p_new )
ResyncCurrentIndex( p_playlist, p_new );
else
p_playlist->i_current_index = -1;
if( p_playlist->current.i_size && (i_skip > 0) )
{
if( p_playlist->i_current_index < -1 )
p_playlist->i_current_index = -1;
for( int i = i_skip; i > 0 ; i-- )
{
p_playlist->i_current_index++;
if( p_playlist->i_current_index >= p_playlist->current.i_size )
{
PL_DEBUG( "looping - restarting at beginning of node" );
p_playlist->i_current_index = 0;
}
}
p_new = ARRAY_VAL( p_playlist->current,
p_playlist->i_current_index );
}
else if( p_playlist->current.i_size && (i_skip < 0) )
{
for( int i = i_skip; i < 0 ; i++ )
{
p_playlist->i_current_index--;
if( p_playlist->i_current_index <= -1 )
{
PL_DEBUG( "looping - restarting at end of node" );
p_playlist->i_current_index = p_playlist->current.i_size-1;
}
}
p_new = ARRAY_VAL( p_playlist->current,
p_playlist->i_current_index );
}
/* Clear the request */
p_sys->request.b_request = false;
}
/* "Automatic" item change ( next ) */
else
{
bool b_loop = var_GetBool( p_playlist, "loop" );
bool b_repeat = var_GetBool( p_playlist, "repeat" );
bool b_playstop = var_GetBool( p_playlist, "play-and-stop" );
/* Repeat and play/stop */
if( b_repeat && get_current_status_item( p_playlist ) )
{
msg_Dbg( p_playlist,"repeating item" );
return get_current_status_item( p_playlist );
}
if( b_playstop )
{
msg_Dbg( p_playlist,"stopping (play and stop)" );
return NULL;
}
/* */
if( get_current_status_item( p_playlist ) )
{
playlist_item_t *p_parent = get_current_status_item( p_playlist );
while( p_parent )
{
if( p_parent->i_flags & PLAYLIST_SKIP_FLAG )
{
msg_Dbg( p_playlist, "blocking item, stopping") ;
return NULL;
}
p_parent = p_parent->p_parent;
}
}
PL_DEBUG( "changing item without a request (current %i/%i)",
p_playlist->i_current_index, p_playlist->current.i_size );
/* Cant go to next from current item */
if( get_current_status_item( p_playlist ) &&
get_current_status_item( p_playlist )->i_flags & PLAYLIST_SKIP_FLAG )
return NULL;
if( p_sys->b_reset_currently_playing )
ResetCurrentlyPlaying( p_playlist,
get_current_status_item( p_playlist ) );
p_playlist->i_current_index++;
assert( p_playlist->i_current_index <= p_playlist->current.i_size );
if( p_playlist->i_current_index == p_playlist->current.i_size )
{
if( !b_loop || p_playlist->current.i_size == 0 )
return NULL;
p_playlist->i_current_index = 0;
}
PL_DEBUG( "using item %i", p_playlist->i_current_index );
if ( p_playlist->current.i_size == 0 )
return NULL;
p_new = ARRAY_VAL( p_playlist->current, p_playlist->i_current_index );
/* The new item can't be autoselected */
if( p_new != NULL && p_new->i_flags & PLAYLIST_SKIP_FLAG )
return NULL;
}
return p_new;
}
