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SnapOtter/apps/docs/tools/video/trim-video.md
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description
description
Cut a clip out of a video by specifying start and end times.

Trim Video

Cut a clip out of a video by specifying start and end times in seconds, with an option for frame-accurate cuts.

API Endpoint

POST /api/v1/tools/video/trim-video

Accepts multipart form data with a video file and a JSON settings field.

Parameters

Parameter Type Required Default Description
startS number No 0 Start time in seconds (must be >= 0)
endS number Yes - End time in seconds (must be after startS)
precise boolean No false Re-encode for frame-accurate cuts instead of keyframe seek

Example Request

curl -X POST http://localhost:1349/api/v1/tools/video/trim-video \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@clip.mp4" \
  -F 'settings={"startS": 5, "endS": 30, "precise": true}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/clip.mp4",
  "originalSize": 12500000,
  "processedSize": 4200000
}

Notes

  • When precise is false (the default), the tool uses keyframe seeking, which is fast but may start a few frames before the requested time.
  • Setting precise to true re-encodes the segment for exact frame boundaries, but takes longer.
  • The endS value must be greater than startS.