A professional workflow
PGM/PST, NEXT TRANSITION, manual T-bar, cascaded M/Es, independent keyers and DSKs. The initial topology has four M/Es, four upstream keys per M/E and two DSKs.
A traditional switcher. A software engine.
Built around the control room.
A professional live video mixer control plane and preparation workspace. Familiar buses, M/Es and keyers, with native rendering powered by CasparCG and casparMIX.
CONTROL / RENDEROPEN SOURCE
INPUT 1
INPUT 2
INPUT 3
INPUT 4
M/E 1–4KEYS · DSK · SUPERSOURCE
PROGRAM
PREVIEW
casparMIXNATIVE GPU RENDERING
04 M/E banks72 Native DME presets83 Native wipesGPLv3 Open source
A clear division of responsibility
One workflow, reusable components.
Prepare the system deliberately, operate the live output explicitly, and keep hardware, control logic and rendering independently maintainable.
Design before going live
Prepare typed inputs, outputs, routing, multiview and reusable SuperSources in the Qt workspace. Physical-panel operation is provided by faderOS.
Native engine primitives
casparMIX adds rendered composition routes, synchronized reentries, native wipes/DME, MOVE and multiview graphics. Mixer decisions stay in kavtor, picture operations stay in the engine.
The render engine extension
CasparCG + casparMIX
An additive, versioned patch set on the pinned upstream stable. Keep CasparCG and its commands while adding reusable native mixer operations. Engine changes remain separate from the control-room logic.
Explore casparMIX →Designed as a patch series
Combined distribution patch, ordered individual patches, checksums and reproducible application against upstream.
Native pixel/audio tests and capacity evidence document exactly what has been checked. Benchmark throughput is not a universal production guarantee.
Read the performance evidence →Start here
Documentation follows the code.
Current guides live with the source. Examples and tests make the behavior reviewable; dedicated manuals will grow alongside the projects.
cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --parallel
build/kavtor --connectEarly development
kavtor 0.25.0 · casparMIX 0.17.0
Linux is the current validated development platform. The catalogues contain implemented effects and explicitly pending IDs; operator review remains part of validation.
What comes next
Complete stinger/track-matte workflows, more key processing, replay and expanded output qualification remain on the roadmap.
Development follows issue → pull request → reviewed merge, with CI and documented validation limits.
Contribute ↗On screen. On the desk.
Original artwork, ready to use.
Vector masters for websites, manuals and equipment labels. Colour, dark-surface and one-colour versions are available, with no font dependency.
85 × 28 mm labels. Print at 100% / Actual size.
