Who the pipeline is built for

You stream a game (FPS, MOBA, RPG, sim — doesn't matter) with your webcam tucked into a corner of the layout. Most viral moments are gameplay reactions: a clutch kill, a map disaster, a punchline you delivered while the boss was loading. The viewer needs to see what's happening on the game screen, not your face zoom.

The pipeline center-crops the 16:9 source to 9:16 around the gameplay area, keeps the webcam visible inside the crop where it already was, and lets the karaoke subtitles carry the verbal punchline. The corner webcam stays in-frame because the crop is centered on the gameplay action, not the webcam region.

• Default layout: gameplay_only — no webcam config needed.
• Hook-aligned cuts make sure the kill / reaction lands inside the first 1–2 seconds.
• Anti-music penalty avoids publishing 30 seconds of background OST.

You stream into a chat — opinions, news takes, story-time, debate. The webcam panel is the entire show. Gameplay is irrelevant; the moment is whatever you said when the camera was on your face.

The pipeline takes the largest possible 9:16 window centered on your face inside the webcam region. You set the face center once in the dashboard (normalized x, y, w, h coordinates), and every clip from then on uses those coordinates so your face stays vertically centered, never drifting to the top or bottom of the rendered output.

• Default layout: webcam_only with face-center coordinates.
• The hook-title overlay on top of your face works especially well — viewers see the headline first, then the punchline you just delivered.
• Profanity censoring is helpful here since just-chatting tends to be more verbally raw.

You're streaming a co-op session, a co-watch, or an IRL setup where the viewer needs to see both your face and the secondary feed (game, video, second cam, browser). A single 9:16 crop won't fit both — you need a stack.

The pipeline puts the webcam panel on top (40% / 768px) with a face-zoom step that crops the panel toward your face, and the second feed on the bottom (60% / 1152px) cropped to fit. vstack in ffmpeg merges them in one render pass, so the karaoke subtitles still land at the right vertical position.

• Default layout: webcam_top_split, with webcam region configured per streamer.
• The 40/60 ratio keeps your face large enough to read while preserving the gameplay context.
• Smart face-bias crop in the top panel (30% top bias) prevents your hairline from being cut off.

You already publish to TikTok, YouTube Shorts, and Instagram Reels manually — but you only have time for one platform a day. Half the audience you could reach never sees the clip because by the time you'd edited and uploaded it, you'd moved on to the next stream.

The pipeline solves the bottleneck on the rendering and publishing side. Each clip is cross-posted to all connected platforms in parallel, with platform-specific caption length, hashtag style, and privacy defaults. Quotas and rate limits are tracked per platform, so when one is throttled the others still go through. You stay in control: every integration uses an OAuth token tied to your own account, and you can revoke access from each platform's "manage connected apps" page at any time.

• One render → up to three destination platforms in parallel.
• API quota dashboards show how close you are to each platform's daily ceiling.
• Telegram archive doubles as a manual review queue — you can paste any clip into a different platform later.