FrameMeld

RIFE video frame interpolation with NVENC encoding (AV1 / HEVC / H.264), wrapped in a simple desktop GUI.

FrameMeld reuses Flowframes' RIFE CUDA implementation for interpolation, then encodes the result straight to AV1/HEVC/H.264 using NVIDIA NVENC via FFmpeg — no manual frame extraction, no juggling separate tools.

Requirements

• An NVIDIA GPU with NVENC support for your target codec (AV1 NVENC requires RTX 40-series or newer; HEVC/H.264 NVENC support goes back further — check NVIDIA's encoder support matrix).
• Internet connection on first launch, to download the runtime