Screen #47 of 60 Batch 8 desktop • 1440x900px

Desktop Video Stream Remuxer (MKV to MP4 H.264 Fast-Start Zero Transcode)

Specification & Codex Reference Prompt (Click to expand) (Video engineering tool repackaging MKV video containers into streaming MP4 containers with Fast-Start MOOV atom without re-encoding.)

Screen Role: Video engineering tool repackaging MKV video containers into streaming MP4 containers with Fast-Start MOOV atom without re-encoding.

Design Intent: A professional video streaming and compression workbench UI at 1440x900 resolution in bright Light Mode. White canvas (#FFFFFF) with 1px slate borders (#E2E8F0). Center stage: Video container stream inspector displaying two stream diagrams: - Stream 1 (Video): "H.264 High Profile (1080p, 60fps) -> Pass-through Copy (0ms Re-encode)". - Stream 2 (Audio): "DTS-HD 7.1 -> Transcode to AAC Stereo 320kbps (Web Compatible)". Left control panel (340px wide, white container with 1px border): - Source: "feature_film_master.mkv (4.2 GB)" - Target: [ MP4 (H.264 / AAC) v ] - Optimization: Checkbox "[x] Web Fast-Start (Move MOOV Atom to Beginning of File)" - Speed: Green badge "Ultra-Fast Edge Remux (Est. Time: 1.8 seconds)" Top export button in solid indigo "Remux to Web-Ready MP4". Video engineering aesthetic, zero emojis.

Component Architecture: Django Cotton components (<c-file_converter.* />) with Tailwind tokens matching Labb.io design language.

Direct route: /file-converter/studio/video-remux/ Template: file_converter/screens/screen_47.html

Live Django Implementation (desktop)

Isolate →

REMUX

Zero-Transcode Video Container Remuxer

MKV / AVI / WebM → Streaming MP4 with Fast-Start MOOV Atom

Input Master

feature_film_master.mkv

4.2 GB • Matroska Container

Target Container

MP4 (H.264 / AAC)

Web Fast-Start Move MOOV atom to beginning of file for instant progressive playback

Ultra-Fast Edge Remux (Est. Time: 1.8 seconds)

Demux / Remux Stream Pipelines

STREAM 0:0 Video Track

Pass-through Copy (0ms Re-encode)

H.264 High Profile • 1080p (1920x1080) • 60 fps • Color Range: Limited

STREAM 0:1 Audio Track

Transcode to AAC Stereo (Web Compatible)

DTS-HD Master Audio 7.1 → AAC 320 kbps • 48.0 kHz Stereo

Original Codex Reference Mockup Full PNG