memset( &fmt_out, 0, sizeof( video_format_t ) );
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
if( p_filter->p_sys->p_mask )
memset( &fmt_out, 0, sizeof( video_format_t ) );
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
if( p_filter->p_sys->p_mask )