WebM recording → Horizontal feed
Take a webm recording to a horizontal feed. A workflow decides the cut, the safe-zone, the captions, and the export preset - not just the format.
The decision that matters: WebM uploads work on YouTube but not on every short-form surface. The transcode target depends on the destination platform.
Step by step
- Check the source file
Use the File Doctor to confirm container, codec, duration, resolution, and file size before deciding anything.
File Doctorproduct-backed - Match the target aspect ratio
Calculate the centred cover-crop / pad that hits the target frame without distortion.
Aspect ratioproduct-backed - Export at the linkedin preset
Per-platform bitrate, codec, and safe-zone. The platform constraint registry is the source of truth.
Export presetproduct-backed
Recommended Content Pack
- Horizontal feed product-backed
What this path cannot do
- Workflow outputs depend on the source - a 60-minute podcast produces ~10 vertical clips, not 60.
- Per-platform captions and safe-zones are platform-specific, not generic.
- Capability today: SUPPORTED_NOW. Steps marked 'product-backed' run inside Koldflux; the rest is recipe guidance.
Why this page exists
Demand: D0-synthetic: webm-recording → horizontal-feed (no direct D5 evidence)
Market: competitor_count=2
Verified: 2026-09-18
Koldflux runs this whole sequence automatically from one source recording. Upload, validate, reframe, caption, export - all in one Content Pack.
Automate this in Koldflux