fix(iced-video): Fix the very high ram usage

feat(playback): add GstPlayFlags for playbin and playbin3

crates/iced-video/examples/minimal.rs

@@ -52,8 +52,6 @@ impl State {
     pub fn new() -> Self {
         let video = VideoHandle::new("https://jellyfin.tsuba.darksailor.dev/Items/6010382cf25273e624d305907010d773/Download?api_key=036c140222464878862231ef66a2bc9c")
             .expect("Failed to create video handle");
-        // let video = VideoHandle::new("file:///run/user/1000/gvfs/smb-share:server=tsuba.darksailor.dev,share=nas/Movies/Spider-Man - No Way Home (2021)/Spider-Man.No.Way.Home.2021.UHD.BluRay.2160p.TrueHD.Atmos.7.1.DV.HEVC.REMUX-FraMeSToR.mkv")
-        //     .expect("Failed to create video handle");
         Self { video }
     }
 }
@@ -71,8 +69,6 @@ pub fn update(state: &mut State, message: Message) -> iced::Task<Message> {
     match message {
         Message::Load => {
             // does stuff
-            // let src = state.video.source().clone();
-            // iced::Task::perform(src.wait(), |_| Message::Loaded)
             iced::Task::none()
         }
         Message::Play => {