Motion Frame Rate Interpolator (video-fps-interpolator)
Install latest/stable of Motion Frame Rate Interpolator
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Details for Motion Frame Rate Interpolator
Package name
- video-fps-interpolator
License
- MIT
Last updated
- Today - latest/stable
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Smooth 60/90/120 FPS & Slow-Motion Optical-Flow Video Interpolator
Motion Frame Rate Interpolator converts standard 24, 25, and 30 fps videos into fluid 60, 90, or 120 fps high-frame-rate video or smooth 0.5x / 0.25x slow-motion clips on Linux. A lightweight Linux alternative to SmoothVideo Project (SVP) for offline motion-compensated frame interpolation and frame cadence analysis.
Key Features:
- Motion-compensated optical flow interpolation (minterpolate MCI with adaptive overlapped block motion compensation, bidirectional motion estimation, variable block size, and scene-cut detection) via the bundled FFmpeg engine.
- Fast temporal blend mode (framerate filter) for rapid high-FPS conversions.
- Smooth 0.5x and 0.25x optical-flow slow-motion synthesis with synchronized audio tempo scaling (atempo).
- Side-by-side Source vs. Interpolated Frame viewer with frame-by-frame stepping and audio-enabled preview playback.
- Real PTS & Cadence Inspector: parses per-frame presentation timestamps (PTS) to verify exact input/output frame multiplication, instantaneous FPS, and millisecond frame-delta uniformity, with CSV and JSON report export.
- Batch conversion queue supporting H.264 (libx264), HEVC (libx265), and VP9 output containers (.mp4, .mkv, .webm).
Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by SVP Team or SmoothVideo Project.
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The build and commit information is derived from build infrastructure records.
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