scenes maybe???

src-lib/src/video.rs

@@ -111,7 +111,7 @@ fn _inspect(file: &String) -> Result<Inspection, String> {
    match std::process::Command::new("ffmpeg")
       .args([
          "-i", file,
-         "-vf", "mpdecimate",
+         "-vf", "mpdecimate,select='gt(scene,0.0)'",
          "-af", "silencedetect=n=-50dB:d=1",
          "-loglevel", "debug",
          "-f", "null",
@@ -152,10 +152,34 @@ impl Inspection {
    }
 
    fn visual_spans(&self) -> Vec<ContentSpan> {
-      self.spans_from_transitions(self.visual_transitions())
+      let unstuck_spans = self.spans_from_transitions(self.visual_transitions_unstuck_frames());
+      let scene_splits = self.visual_transitions_scene_splits();
+      let mut result = vec![];
+      for i in 0..unstuck_spans.len() {
+         let mut span = unstuck_spans[i];
+         for split in scene_splits.iter() {
+            if &span.start < split && split < &span.stop { // TODO buffer
+               result.push(ContentSpan{start: span.start, stop: *split});
+               span.start = *split;
+            }
+         }
+         result.push(span); // TODO assert nontrivial
+      }
+      result
    }
 
-   fn visual_transitions(&self) -> Vec<f32> {
+   fn visual_transitions_scene_splits(&self) -> Vec<f32> {
+      self.lines.iter()
+         .filter(|x| x.contains("[Parsed_select_1") && x.contains(" scene:"))
+         .map(|x| f32::from_str(x
+            .split(" scene:").nth(1).unwrap()
+            .split(" ").nth(0).unwrap()
+         ).unwrap())
+         .filter(|x| *x > 0.5) // TODO const
+         .collect()
+   }
+
+   fn visual_transitions_unstuck_frames(&self) -> Vec<f32> {
       let lines: Vec<_> = self.lines.iter()
          .filter(|x| x.contains("Parsed_mpdecimate_0"))
          .filter(|x| x.contains("keep pts:") || x.contains("drop pts:"))
@@ -328,7 +352,10 @@ mod test_inspection {
 
       assert_eq!(28.14, inspection.duration());
 
-      assert_eq!(4, inspection.visual_transitions().len());
+      assert_eq!(1, inspection.visual_transitions_scene_splits().len()); // TODO
+      assert_eq!(0.65986, inspection.visual_transitions_scene_splits()[0]); // TODO
+
+      assert_eq!(4, inspection.visual_transitions_unstuck_frames().len());
       assert_eq!(
          vec![ContentSpan{start: 1.0520501, stop: 22.0043}],
          inspection.visual_spans(),