HALOWERKMedienwerk
burn subtitles
Takes a video of up to 3 minutes and returns an MP4 with the subtitles rendered into the picture. Subtitles come either from you as SRT or WebVTT text, or, with transcribe=true, from the soundtrack (Deepgram, training opt-out) at 0.03 instead of 0.01 USDC per minute — the price is fixed before payment. Rendering runs locally with ffmpeg and libass in DejaVu Sans with outline, at the size and position you choose; the video is re-encoded to H.264/AAC and scaled to at most max_width so the file.
POST https://medien.halowerk.com/v1/burn-subtitlesEingaben
| Feld | Typ | Pflicht | Beschreibung |
|---|---|---|---|
| source | object | Ja | The recording. Either url or content_base64. |
| duration_minutes | integer | Ja | Length of the video in started minutes — this is what you are billed for. |
| srt | string | Nein | Subtitles as SRT text. |
| vtt | string | Nein | Subtitles as WebVTT text. |
| transcribe | boolean | Nein | Create subtitles from the soundtrack instead (0.03 USDC per minute). |
| language | string | Nein | Spoken language for transcribe. Omit to detect. |
| font_size | integer | Nein | |
| position | string | Nein | |
| max_width | integer | Nein |
Vollständiges Eingabeschema anzeigen
{
"type": "object",
"required": [
"source",
"duration_minutes"
],
"additionalProperties": false,
"properties": {
"source": {
"type": "object",
"additionalProperties": false,
"description": "The recording. Either url or content_base64.",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the file."
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64. Larger files by url."
},
"filename": {
"type": "string",
"maxLength": 260
}
}
},
"duration_minutes": {
"type": "integer",
"minimum": 1,
"maximum": 3,
"description": "Length of the video in started minutes — this is what you are billed for."
},
"srt": {
"type": "string",
"maxLength": 300000,
"description": "Subtitles as SRT text."
},
"vtt": {
"type": "string",
"maxLength": 300000,
"description": "Subtitles as WebVTT text."
},
"transcribe": {
"type": "boolean",
"default": false,
"description": "Create subtitles from the soundtrack instead (0.03 USDC per minute)."
},
"language": {
"type": "string",
"maxLength": 12,
"description": "Spoken language for transcribe. Omit to detect."
},
"font_size": {
"type": "integer",
"minimum": 10,
"maximum": 60,
"default": 22
},
"position": {
"type": "string",
"enum": [
"bottom",
"middle",
"top"
],
"default": "bottom"
},
"max_width": {
"type": "integer",
"minimum": 320,
"maximum": 1920,
"default": 1280
}
}
}Ergebnis & Dokumentation
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Quelle dieser Seite: der veröffentlichte HALOWERK-Katalog. Stand: 2026-11-01, 15:19 UTC.
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