get-notebooklm-video

name	get-notebooklm-video
description	Download a NotebookLM video artifact to /input/video.mp4 and create a title.json with its title.

Get NotebookLM Video

Download a completed video artifact from a notebook to the local input directory.

Note: Use notebooklm download video (top-level command), NOT notebooklm artifact download (does not exist).

Workflow Steps

Step 1: List Artifacts (optional)

notebooklm artifact list -n <notebook-id> --json

Step 2: Download Video

Download to /input/video.mp4:

notebooklm download video -n <notebook-id> -a <artifact-id> input/video.mp4 --force

Options:

• --force — overwrite existing file
• --no-clobber — skip if file exists
• --all — download all video artifacts
• -a / --artifact <id> — select by artifact ID (supports partial match)
• --name "<title>" — select by artifact title (fuzzy match)

Step 3: Create Title Metadata

echo '{"title": "<video-title>"}' > /input/title.json

Step 4: Trim Last 3 Seconds

NotebookLM-generated videos often include an ending bumper/logo frame. Trim the last 3 seconds from the video to clean it up:

# Get video duration in seconds
DURATION=$(ffprobe -v error -show_entries format=duration \
  -of default=noprint_wrappers=1:nokey=1 "input/video.mp4")

# Calculate new duration (minus 3 seconds)
TRIM_TO=$(echo "$DURATION - 3" | bc)

# Cut video to new duration (fast — stream copy, no re-encode)
ffmpeg -i "input/video.mp4" -t "$TRIM_TO" -c copy \
  "input/video-trimmed.mp4"

# Replace original with trimmed version
mv "input/video-trimmed.mp4" "input/video.mp4"

echo "Trimmed last 3s: ${DURATION}s → ${TRIM_TO}s"

Requires ffmpeg and ffprobe. Install via brew install ffmpeg (macOS) or apt install ffmpeg (Linux).

Output

input/
├── video.mp4      (typically ~50-100MB, last 3s trimmed)
└── title.json