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47 lines
1.4 KiB
Markdown
47 lines
1.4 KiB
Markdown
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---
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description: Mux a subtitle track into the video container.
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---
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# Embed Subtitles
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Mux a subtitle file into the video container as a soft subtitle track that viewers can toggle on or off.
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## API Endpoint
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`POST /api/v1/tools/embed-subtitles`
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Accepts multipart form data with a video file and a subtitle file, plus 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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| language | string | No | `"eng"` | ISO 639-2/B language code (3 lowercase letters, e.g. `"eng"`, `"fra"`, `"deu"`) |
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## Example Request
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/embed-subtitles \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@clip.mp4" \
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-F "file=@subtitles.srt" \
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-F 'settings={"language": "fra"}'
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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": 12520000
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}
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```
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## Notes
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- Upload two files: the first must be a video, the second must be a subtitle file (.srt, .vtt, or .ass).
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- Embedded (soft) subtitles can be toggled by the viewer in their media player. For permanently visible subtitles, use the Burn Subtitles tool instead.
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- The language code is stored as metadata in the container and helps media players label the subtitle track.
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