THIRD_PARTY_LICENSES.md

Third-Party Licenses and Attributions

OpenZoom relies on several third-party SDKs and code drops. Keep this summary with any redistributed build and update it whenever dependencies or bundled notices change.

Qt 6

• Upstream: https://www.qt.io/
• License family: LGPL-3.0 / GPL-3.0 / commercial, depending on how Qt is obtained
• OpenZoom usage: dynamically linked Qt Widgets runtime deployed via windeployqt
• Notes:
  • If you redistribute Qt DLLs, include the required Qt notices and license text that apply to your distribution.
  • If you modify Qt itself, those changes must be handled under Qt's licensing terms.
  • Development builds expect the user to provide a local Qt installation.

NVIDIA Image Scaling

• Upstream: https://github.com/NVIDIAGameWorks/NVIDIAImageScaling
• Local notice file: third_party/nvidia_nis/LICENSE.txt
• Usage: optional CUDA spatial sharpening path
• Attribution: retain NVIDIA's notice when redistributing modified or bundled source material

AMD FidelityFX Super Resolution 1.0

• Upstream: https://github.com/GPUOpen-Effects/FidelityFX-SuperResolution
• Local notice file: third_party/amd_fsr1/LICENSE.txt
• License: MIT
• Usage: optional FSR-style CUDA spatial sharpening path
• Attribution: preserve the MIT license text and AMD attribution in redistributed source packages

NVIDIA CUDA Toolkit

• Upstream: https://developer.nvidia.com/cuda-toolkit
• License: NVIDIA CUDA Toolkit EULA
• OpenZoom redistribution scope:
  • runtime DLLs only
  • no CUDA headers, compilers, or developer tools are bundled
• Review NVIDIA's current redistribution terms before shipping binaries that include CUDA runtime files

Microsoft Platform Components

• APIs used: Media Foundation, Direct3D 12, DXGI, Windows Imaging Component, and other Windows SDK libraries
• License source: Windows SDK / Visual Studio / OS redistribution terms
• Notes: these platform APIs are not copied into the repository as standalone third-party source code

Not Currently Bundled

• OpenCV DNN
• TensorRT
• external AI model weights

Those remain roadmap items. If they are added later, this file must be expanded in the same change.

Optional External Tools And Services

• Tesseract OCR may be used at runtime if installed locally, but it is not bundled by this repository or the current Windows packaging scripts.
• OpenAI-compatible VLM services may be used at runtime through user-supplied endpoint credentials, but no hosted model or service SDK is bundled here.