Built a custom PHP video streaming platform with HLS: chunked uploads, async FFmpeg transcoding into multiple renditions (adaptive bitrate), and cloud storage delivery. Clean backend architecture for fast, reliable playback at scale.
Process note:
🌑 Echo is a black screen where every sound sends a wave of light through the scene in real depth.
🎞️ Starting footage: one licensed stock clip of a temple corridor from invideo's stock library. The sound is original, synthesised for this piece. The voiceover is my own.
💬 What I asked for: a black screen where each ping lights the scene by distance, built from a depth map, with controls for each wave, afterglow, wave thickness, contour lines, outlines, colour and a final reveal.
🛠️ What was built: a depth map (Depth Anything Video), two "Echo" custom effects on the depth map (a Multiply layer for light and an Add layer for glow), an "Echo colour" effect on the footage, and keyframes for six waves and the reveal. The first build was done by Claude, connected to invideo Editor through invideo's MCP server.
🎚️ Refinement: I asked invideo's own agent (Agent Two Lite) in the editor to raise Afterglow from 0.14 to 0.3 on both Echo effects. It made the change on the timeline, and that conversation is shown in the video. I also tried a longer afterglow and a gold colour, both shown.
✅ All building and the final cut were done in invideo Editor.
KAUREX.in is my agency operating system - built to deliver landing pages + automation + full-stack marketing without agency chaos.
What is KAUREX?
KAUREX is not a freelancer profile. It's an OS with 8 specialist pods:
Website / Landing Page Pod (WordPress, 48hr delivery)
Automation Pod (GoHighLevel + n8n, WhatsApp routing)
LSA Pod (Google Local Services Ads)
Ads Pod (Google + Meta)
Video Pod (AI + editing, ratio fix, repurposing)
SEO Pod (RE & local)
Content Pod
Support Pod
Why I built it?
Clients hiring on Contra want personal expert, not agency spam. But they also need full stack. So I work as Kaushal Kumar (personal) for Landing Page + Automation - my core. If client needs LSA/Ads/Video/SEO - KAUREX pods deliver white-label under my name.
What this video shows:
This is a free AI-powered web tool inside KAUREX.in - Upload video, prompt "Adjust to 4:3 with padding, do not crop" and AI recreates video without cutting text/faces.
In this demo:
I uploaded a 16:9 portfolio video that Contra was cropping
Prompted for 4:3 with padding
KAUREX tool added brand-color padding (violet #2D1B4E) and kept full content
Output ready for Contra 4:3 cover, no crop
Tech behind KAUREX:
Frontend: WordPress + Elementor + Custom AI interface
Backend: n8n workflows + GoHighLevel CRM + AI video API
Delivery: 48hr landing, 72hr automation, white-label via pods
This project is my second portfolio work - first is my personal showreel, second is KAUREX OS demo. It proves I don't just design - I build systems.
the 4:3 padding tool is a neat fix for the contra cover crop. where do most of your landing page clients come from right now, contra or your own outreach