Find the cross-dissolve where two shots are joined

Cuts and editsCookingVerified

0:11CC-BY-SA-4.0 · مصطفى ملو (Wikimedia Commons user)

Proof frames

Click a frame to seek

Tool calls

2 calls · agentic-video 0.3.1

detect_cutsimac · 364 ms

Arguments

{
  "source": "$CLIP"
}

Result

{
  "ok": true,
  "data": {
    "cuts": [
      {
        "timestamp_sec": 5.45,
        "score": 0.213058,
        "kind": "transition"
      }
    ],
    "total": 1
  }
}

inspect_windowimac · 331 ms

Arguments

{
  "source": "$CLIP",
  "start_sec": 4.48,
  "end_sec": 6.48,
  "fps": 2
}

Result

{
  "ok": true,
  "data": {
    "source_path": "~/hill/gallery/repo/cards/dissolve-cooking/clip.mp4",
    "start_sec": 4.48,
    "end_sec": 6.48,
    "fps": 2,
    "frames": [
      {
        "index": 1,
        "timestamp_sec": 4.48,
        "timecode": "00:00:04.480",
        "file_path": "<cache>/40925840495a896d8f72/dense_e467f8bb527f2988ee62/frame_0001.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 4.48,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 2,
        "timestamp_sec": 4.98,
        "timecode": "00:00:04.980",
        "file_path": "<cache>/40925840495a896d8f72/dense_e467f8bb527f2988ee62/frame_0002.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 4.98,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 3,
        "timestamp_sec": 5.48,
        "timecode": "00:00:05.480",
        "file_path": "<cache>/40925840495a896d8f72/dense_e467f8bb527f2988ee62/frame_0003.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 5.48,
        "decoded_timestamp": null,
        "timestamp_delta": null
      },
      {
        "index": 4,
        "timestamp_sec": 5.98,
        "timecode": "00:00:05.980",
        "file_path": "<cache>/40925840495a896d8f72/dense_e467f8bb527f2988ee62/frame_0004.jpg",
        "width": 640,
        "height": 360,
        "requested_timestamp": 5.98,
        "decoded_timestamp": null,
        "timestamp_delta": null
      }
    ],
    "contact_sheet_path": "/private<cache>/40925840495a896d8f72/contact_sheets/sheet_4samples_4cols_cc0522.jpg",
    "estimated_vision_tokens": 1032,
    "tool_file": {
      "_tag": "ToolFile",
      "name": "sheet_4samples_4cols_cc0522.jpg",
      "mimeType": "image/jpeg",
      "encoding": "base64",
      "data": "<433540 base64 chars dropped>",
      "byteLength": 325154
    }
  }
}

Question and answer

Question: Is there a fade between shots? Where is it?
Answer: The tool reports a transition at 5.45 seconds, where the two shots meet.

Check passedanswer 5.45, expected 5.5 ±0.5

How it was checked

Truth from: constructed
Fixed at: 2026-10-30 19:29

Planted by this recipe before any tool ran: shot A is 6 s of abadir-nomadic-pizza from 37.04 s; shot B is 5.64 s of armenia-bread from 28.92 s (another source of the same domain; neither shot has a hard cut inside). ffmpeg joined them with one 1.0 s cross-dissolve (xfade fade) from 5 s to 6 s of the clip. The truth is the fade midpoint 5.5 s, with tolerance 0.5 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 'Filling and laying dough for a nomad flatbread on hot stones' and one from another clip of the same kind, with a planted 1.0 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: مصطفى ملو (Wikimedia Commons user)
Source: commons.wikimedia.org

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

Also uses (insert 1)

Licence: CC-BY-SA-2.0
Author: Clay Gilliland (Flickr user 26781577@N07)
Source: commons.wikimedia.org

This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.