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  1. Here's an app I wrote to analyze video quality between different encodes. This was inspired by FFMetrics, but I wanted many more features for comparisons, like advanced statistics and an ability to easily and instantly subjectively A/B compare encoded videos with the source. This makes subjective video quality comparisons so much easier when you can compare on a frame by frame basis and while the video is playing, and instantly switch to the source or a different encoded video.

    So I decided to write my own app, and I'd like to share it with all of you. I hope you all enjoy

    Let me know what you think, have any issues, or have feature requests.

    v1.1 release

    - Add VMAF v1 models for standard, phone, 4K, and HFR viewing scenarios.
    - Bunch of code refactoring for adding future metrics

    Features:

    - Calculate VMAF, VMAF NEG, PSNR, SSIM, and XPSNR for multiple test videos.
    - VMAF v0.61 and v1 models for standard, phone, 4K, and HFR viewing scenarios.
    - Compare metric curves, statistics, and per-frame scores.
    - Instant switch between source and encoded video for easy visual A/B comparisons, both frame by frame and during playback, and between different encoded videos.
    - Inspect bitrate by frame, second, or GOP without running quality metrics.
    - Detect black bars and handle resolution mismatches automatically.
    - Use GPU decoding when supported, with independent software fallback per input.
    - Calculate two test videos in parallel on many-core CPUs.
    - Cache completed results and restore them when matching videos are loaded again.









    The app can be downloaded below.

    https://github.com/4KVCD/VideoMetricsLab/releases
    Last edited by 4KVCD; 22nd Sep 2026 at 19:46.
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  2. Nice, thanks!
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  3. v1.1 is released!

    VMAF v0.61 and v1 models for standard, phone, 4K, and HFR viewing scenarios are added along with some internal code refactoring for adding future metrics

    https://github.com/4KVCD/VideoMetricsLab/releases/tag/v1.1
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  4. v1.1.1 released. Needed to fix some quick bugs

    - Fixed the metric graph clipping VMAF v1 scores above 100.
    - Show the application version in the window title: VideoMetricsLab 1.1.1.
    - Omit calculation-library version metadata from non-VMAF cache entries
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