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56 lines
1.7 KiB
Markdown
56 lines
1.7 KiB
Markdown
---
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description: Burn a text watermark onto video frames.
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---
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# Watermark Video
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Burn a text watermark onto every frame of a video with configurable position, size, opacity, and color.
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## API Endpoint
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`POST /api/v1/tools/video/watermark-video`
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Accepts multipart form data with a video file and a JSON `settings` field.
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## Parameters
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| text | string | Yes | - | Watermark text (1-200 characters) |
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| position | string | No | `"br"` | Position on the frame: `tl`, `tc`, `tr`, `l`, `c`, `r`, `bl`, `bc`, `br` |
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| fontSize | integer | No | `36` | Font size in pixels (8-120) |
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| opacity | number | No | `0.5` | Watermark opacity (0.05-1) |
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| color | string | No | `"#ffffff"` | Hex color for the text (e.g. `"#ffffff"`) |
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### Position Values
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- **tl** - Top left, **tc** - Top center, **tr** - Top right
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- **l** - Middle left, **c** - Center, **r** - Middle right
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- **bl** - Bottom left, **bc** - Bottom center, **br** - Bottom right
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## Example Request
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/video/watermark-video \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@clip.mp4" \
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-F 'settings={"text": "PREVIEW", "position": "c", "fontSize": 48, "opacity": 0.3}'
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```
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## Example Response
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/clip.mp4",
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"originalSize": 12500000,
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"processedSize": 12400000
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}
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```
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## Notes
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- The watermark is permanently rendered into the video frames and cannot be removed after processing.
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- The watermark uses a sans-serif font built into FFmpeg.
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- For image watermarks, use the image Watermark tool instead.
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