Fix frames example

Author: emilk

crates/store/re_video/examples/frames.rs

@@ -27,6 +27,10 @@ fn main() {
     let video = std::fs::read(video_path).expect("failed to read video");
     let video = re_video::VideoData::load_mp4(&video).expect("failed to load video");
 
+    let sync_decoder = Box::new(
+        re_video::decode::av1::SyncDav1dDecoder::new().expect("Failed to start AV1 decoder"),
+    );
+
     println!(
         "{} {}x{}",
         video.gops.len(),
@@ -38,15 +42,16 @@ fn main() {
     progress.enable_steady_tick(Duration::from_millis(100));
 
     let frames = Arc::new(Mutex::new(Vec::new()));
+    let on_output = {
+        let frames = frames.clone();
+        let progress = progress.clone();
+        move |frame| {
+            progress.inc(1);
+            frames.lock().push(frame);
+        }
+    };
     let mut decoder =
-        re_video::decode::async_decoder::AsyncDecoder::new("debug_name".to_owned(), {
-            let frames = frames.clone();
-            let progress = progress.clone();
-            move |frame| {
-                progress.inc(1);
-                frames.lock().push(frame);
-            }
-        });
+        re_video::decode::AsyncDecoder::new("debug_name".to_owned(), sync_decoder, on_output);
 
     let start = Instant::now();
     for sample in &video.samples {