Find the cross-dissolve where two shots are joined

Cuts and editsGamingTool missed

0:08CC-BY-SA-4.0 · PantheraLeo1359531

Proof frames

Click a frame to seek

Tool calls

2 calls · agentic-video 0.3.1

detect_cutsimac · 569 ms

Arguments

{
  "source": "$CLIP"
}

Result

{
  "ok": true,
  "data": {
    "cuts": [
      {
        "timestamp_sec": 5.25,
        "score": 0.290396,
        "kind": "transition"
      },
      {
        "timestamp_sec": 6.75,
        "score": 0.215019,
        "kind": "transition"
      }
    ],
    "total": 2
  }
}

inspect_windowimac · 374 ms

Arguments

{
  "source": "$CLIP",
  "start_sec": 2.4,
  "end_sec": 5.44,
  "fps": 2
}

Result

{
  "ok": true,
  "data": {
    "source_path": "~/hill/gallery/repo/cards/dissolve-gaming/clip.mp4",
    "start_sec": 2.4,
    "end_sec": 5.44,
    "fps": 2,
    "frames": [
      {
        "index": 1,
        "timestamp_sec": 2.4,
        "timecode": "00:00:02.400",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0001.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 2.4,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 2,
        "timestamp_sec": 2.9,
        "timecode": "00:00:02.900",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0002.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 2.9,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 3,
        "timestamp_sec": 3.4,
        "timecode": "00:00:03.400",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0003.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 3.4,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 4,
        "timestamp_sec": 3.9,
        "timecode": "00:00:03.900",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0004.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 3.9,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 5,
        "timestamp_sec": 4.4,
        "timecode": "00:00:04.400",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0005.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 4.4,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 6,
        "timestamp_sec": 4.9,
        "timecode": "00:00:04.900",
        "file_path": "<cache>/b3c15e5a1e56ee694c0f/dense_bae1b67e7f4505030fe4/frame_0006.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 4.9,
        "decoded_timestamp": null,
        "timestamp_delta": null
      }
    ],
    "contact_sheet_path": "/private<cache>/b3c15e5a1e56ee694c0f/contact_sheets/sheet_6samples_4cols_22c2a6.jpg",
    "estimated_vision_tokens": 1548,
    "tool_file": {
      "_tag": "ToolFile",
      "name": "sheet_6samples_4cols_22c2a6.jpg",
      "mimeType": "image/jpeg",
      "encoding": "base64",
      "data": "<565372 base64 chars dropped>",
      "byteLength": 424029
    }
  }
}

Question and answer

Question: Is there a fade between shots? Where is it?
Answer: The tool reports a transition at 5.25 seconds, where the two shots meet.

Tool returned: 5.25
Truth: 3.92

Check failedanswer 5.25, expected 3.92 ±1.0

How it was checked

Truth from: constructed
Fixed at: 2026-10-30 19:39

Planted by this recipe before any tool ran: shot A is 4.92 s of 0ad-gameplay-test-2019 from 39.8 s; shot B is 5.24 s of stk-benchmark-base-profile from 23.16 s (another source of the same domain; neither shot has a hard cut inside). ffmpeg joined them with one 2.0 s cross-dissolve (xfade fade) from 2.92 s to 4.92 s of the clip. The truth is the fade midpoint 3.92 s, with tolerance 1 s (half the fade), so a cut time anywhere inside the fade passes. The window given to inspect_window is the fade plus 0.5 s either side, fixed here.

A script joined two shots, one from '0 A.D. base and battle gameplay, camera pans, no sound' and one from another clip of the same kind, with a planted 2.0 s cross-dissolve and no sound, so the answer is one time inside that fade (not its start and end); the card does not show whether detect_cuts finds other cuts.

Try it yourself

Use agentic-video on my video. Run detect_cuts on the whole video, then run inspect_window over the part where the picture fades into the next shot. Tell me the time of the fade.

Get the .mcpb file and open it in Claude Desktop.
Or: pip install agentic-video

Clip and licence

Licence: CC-BY-SA-4.0
Author: PantheraLeo1359531
Source: commons.wikimedia.org

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.

Also uses (insert 1)

Licence: CC-BY-SA-4.0
Author: SuperTux Kart-Autoren
Source: commons.wikimedia.org

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.