y4m or . Activity is a relative number indicating how actively a project is being developed. vmaf video-quality video-quality-assessment vmaf-gui ffmpeg-vmaf Resources. g. SonarLint. QSV is a hardware encoder with a. Here is a detailed guide on OTTVerse for compiling and installing FFmpeg with VMAF support on Ubuntu 18. Write better code with AI Code review. VMAF is a tool developed by Netflix to grade the quality of a compressed video file in comparison to the Original. VMAF is an Emmy-winning perceptual video quality assessment algorithm developed by Netflix. We provide a few examples how you can construct the FFmpeg command line and use VMAF as a filter. Growth - month over month growth in stars. Growth - month over month growth in stars. VMAF - Video Multi-Method Assessment Fusion. The advantage of. I've been experimenting with av1an and aomenc and want to share the results with you. The starting material is a film clip about 20 minutes long, 3 GB in size and with an average bandwidth of about 18 MBit, encoded in h264. ts, i. 1. 7 PCC. video-quality-metrics - Test specified presets/CRF values for the x264 or x265 encoder. ab-av1 is using an estimated mean-VMAF of the whole file, rather than a per-chunk VMAF. Activity is a relative number indicating how actively a project is being developed. Code Issues Pull requests Discussions This utility compares two graphics files based on metrics. 1 VMAF是什么？. Manage code changesvmaf 的计算相对复杂，涉及大量时空域信息，无法在编码过程中通过局部信息推导得到，因此无法在编码过程通过实时反馈的方式调整编码参数，只能在编码之后，计算得到准确的 vmaf 结果，然后再去调整编码参数重新编码，如此反复，直到搜索得到合适的参. Open-source C# projects categorized as vmaf-gui Edit details. 264s set to a “High” profile, with data rate restrictions to 62. If you need to analyze hundreds of files, this will take a very long time. By sampling its certainly possible to "miss" a complex scene and therefore have an inaccurate VMAF. vmaf (requires vim) (make) xtrabackup (requires vim) (make) diffoscope (requires vim) (check. A GUI built using C# to make Netflix's VMAF easier to use. 1. Collect and Analyze Billions of Data Points in Real Time. Calculating a VMAF score requires a VMAF model. If the VMAF score of each video frame is simply averaged as the final result, the influence of some video frames with poor-quality will be ignored. and uses scripting based frame servers, AviSynth+ and VapourSynth, for video processing. easyVmaf - Python. . 264 MKV files. This is where VMAF shows a tremendous advantage, as illustrated below. The Bjontegaard rate difference, also known as BD-rate, allows the measurement of the bitrate reduction offered by a codec or codec feature, while maintaining the same quality as measured by objective metrics. Saved searches Use saved searches to filter your results more quicklyWe would like to show you a description here but the site won’t allow us. 而对于 4K 视频，则推荐使用模型 vmaf_4k_v0. In this article, guest author Gabriel Dávila Revelo introduces us to a tool ( easyVMAF) that he’s developed to make VMAF computations easier and straightforward. A GUI built using C# to make Netflix's VMAF easier to use. is a command line tool which supports VMAF feature extraction and prediction. Run at any scale in any environment in the cloud, on-premises, or at the edge. Install FFmpeg. nmkoder - Media encoding, muxing, analysis toolkit for Windows . Write Clean Python Code. 1. A GUI built using C# to make Netflix's VMAF easier to use. Setting threads to 0 uses only a single thread. FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. Also includes Netflix's VMAF. gui video ffmpeg ssim psnr vmaf vmaf-gui Updated Feb 16, 2023; C#; benjamin-stern / Video-ReEncoder Star 1. 6. VMAF is an Emmy-winning perceptual video quality assessment algorithm developed by Netflix. Activity is a relative number indicating how actively a project is being developed. I tested three files totaling about 8. I compared each encoding with the original using VMAF and SSIM calculations over a 11 second clip. Works with almost all video codecs (mpeg2, H264, HEVC, VP9. 3. Learn more. json. ts matchs with the frame located at 0. FFmpeg Quality Metrics. net is a modern media player for Windows that works just like mpv. 8 44 5. Stars - the number of stars that a project has on GitHub. sln file then compile for your system. When comparing vmaf-gui and video-quality-metrics you can also consider the following projects: FFMetrics - Visualizes Video Quality Metrics (PSNR, SSIM & VMAF) calculated by ffmpeg. While it predicts human perception well, it doesn't consider non-visual factors and might not work equally well. 1-full_build-ffmpeg-release-full. js library to create a line chart. Video Multimethod Assessment Fusion ( VMAF) is an objective full-reference video quality metric developed by Netflix in cooperation with the University of Southern California, The IPI/LS2N lab Nantes Université, and the Laboratory for Image and Video Engineering (LIVE) at The University of Texas at Austin. In the build folder you’ll have to provide your own copy of ffmpeg, vmaf, and the model files for vmaf. But in general I find my test videos consistent enough that sampling with a just a few ends up fairly accurate. I've tried FFmpeg and handbrake using - x264, x265, NVENC, with various CRF settings and 2 pass. nmkoder - Media encoding, muxing, analysis toolkit for Windows . So, the ideal ladder would include 21 rungs ( (95-55)/2)+1). 264 with mediocre quality at 1080p). . It allows to deinterlace, scale and sync Ref and. I tried to make some VMAF testing with the VMAF GUI. Using a 12GB x265 file as "Source", and a 2. Av1ador. 1 Handbrake docs list AV1 but it is not in the list of Video Encoders in the GUI. It is equal to [0] [1]libvmaf. NET FFMpeg/FFProbe wrapper for easily integrating media analysis. Well, and build shiny graphs of course. So I possess --enable-libvmaf enabled img1 I 'm using this command ffmpeg -i distorted. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use Flyleaf - Media Player . It allows to deinterlace, scale and sync Ref and Distorted video automatically. CryptoGitHub is where people build software. If you want to install the L-SMASH or ffms2 plugins and are on Windows, then you have two installation. FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. 1 aom/vpx parsing, fix edge case by @redzic in #588. During the testing process, I sent questions and encoding strings to Google, which was kind enough to lend assistance. GitHub is where people build software. 2. m4v. Encoder of choice: Install AOMENC. ffmpeg -i main. VMAF motion based Q-index adjustment ----- A data fitting method is used to calculate the scaling factor of frame's base Q index based on its VMAF motion score. Definitely the most precise tool to benchmark video encoders. About. Step 2: Install the Video and Audio Codecs that you are going to need. exe. top - All your VapourSynth Plugins in one place!. Features: PSNR, SSIM, VMAF visual quality metrics VMAF is a tool developed by Netflix to grade the quality of a compressed video file in comparison to the Original. Install vpx VP9, VP8 encoding. Minor Improvements. FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. Growth - month over month growth in stars. fix indicatif by @master-of-zen in #583. FFMetrics is a FFMpeg GUI that purpose is to visualize quality metrics calculated by FFMpeg. v1. Stars - the number of stars that a project has on GitHub. The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. Manage code changesCalculation of video quality metrics, such as PSNR, APSNR, SSIM, DELTA, MSE, MSAD, VQM, NQI, VMAF and VMAF phone, VIF. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. VMAF was designed for 1080p at an expected seating distance relative to display height of 3H. json. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use ffmpeg_batch - FFmpeg Batch AV Converter digital_video_introduction - A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Encoder of choice: Install AOMENC. Check the directory /usr/local/share/model/, look for a file named vmaf_v0. FFMetrics - Visualizes Video Quality Metrics (PSNR, SSIM & VMAF) calculated by ffmpeg. Manage code changesmeson setup libvmaf libvmaf/build --buildtype release --default-library static --prefix C:/vmaf-install. It is assumed here that you have already downloaded and installed the EMSDK, installed and activated at least one toolchain, and setup your environment appropriately. It allows to deinterlace, scale and sync Ref and Distorted video automatically. . 2 41 10. 1. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use Flyleaf - Media Player . Due to Windows not having a good default for where to pull the VMAF model from, you will always need to. It varies by codec implementation. 0 the models have been built-in to the library itself and external model files are unnecessary, though FFmpeg was updated to use the new API introduced in libvmaf 2. This release allows the user to supply their own model files in the model folder. sponsored. Recent commits have higher weight than older. In this case, libaom-AV1 preset 0 takes the longest to encode but delivers the best VMAF and low-frame quality, both 100%. This list will help you: FUnIE-GAN, iSeeBetter, piqa, video-quality-metrics, vmaf-gui, and av-metrics. 264. With those two installed, you can build aom-av1-lavish with these steps (reference): aom-av1-lavish. LibHunt /DEVs Topics Popularity Index Search Login About. It shouldn't take you more than a few minutes. json vmaf_v0. Open-source projects categorized as Ssim. 04. Fresh binaries are usually available by 2 am GMT. NET Standard wrapper for FFmpeg. Recent commits have higher weight than older. This can be mitigated by using more samples. To avoid loosing the remaining meta-data (such as date, camera) on the video do ffmpeg -i input. 0 2,163 10. It allows to deinterlace, scale and sync Ref and. 0 C# video-quality-metrics VS vmaf-gui A GUI built using C# to make Netflix's VMAF easier to use Sonar. nmkoder - Media encoding, muxing, analysis toolkit for Windows . easyVmaf - Python. Recent commits have higher weight than older. These instructions focus on using the inspector with AOMAnalyzer, but all tools can be. Learn any GitHub repo in 59 seconds. Stars - the number of stars that a project has on GitHub. Distorted file have index=0 Reference file have index=1. If possible, it would be useful to. Can also calculate PSNR, SSIM and MS. h266 and audio format were merged into mp4 playable of VVC. mpg -i ref. 100 can look very much non-transparent while even mathematically lossless video can score as low as around vmaf 97. NET Library which facilitates interacting with Audio Devices on Windows SeeShark - Simple C# camera library. The model file, for instance, is built-in to modern versions of libvmaf and is used by default, but since FFmpeg uses the old API you need to specify the model file path. When I found myself wanting to encode in an older. Skip to content Toggle navigation. FFMpegCore - A . 1-full_build-ffmpeg-release-full. Discussions. Compares VMAF/SSIM/PSNR numerically & via graphs. patch adds a patch to gst-plugins-base-1. VMAF- Invented by Netflix and then open-sourced, VMAF is widely available. The function configures the chart with labels for each frame, VMAF scores as the data, and sets the y-axis to begin at zero. pkl" Recomended to place both files in encoding folder (`vmaf_v0. FFmpeg - . As there is no any renaming/remapping, they will be sent to libvmaf in original order: 0 then 1 (distorder then reference). A GUI built using C# to make Netflix's VMAF easier to use Project mention: What's a preferred constant quality for h265 1080p? | /r/handbrake | 2023-04-14. 1. This way all global metadata on the input file will be copied as global metadata to output file and only the. However, just like with transcoding, this process takes a lot of time to run sequentially on your own machine. C# Ssim. This only calculates VMAF for every X frames, which saves a lot of compute. Finally, AMD's RDNA 2/3 get 44 points, while AMD's older GPUs are rather abysmal at just 33 points. It is creating both source and compressed . Activity is a relative number indicating how actively a project is being developed. Alkl58/VMAF-Plot-GUI. exe. All necessary functionality for effective in-depth analysis of encoded video sequences. Pulsar-VMAF - Hardware-based VMAF . easyVmaf - Python. {"payload":{"allShortcutsEnabled":false,"fileTree":{"vmaf-gui":{"items":[{"name":"Properties","path":"vmaf-gui/Properties","contentType":"directory"},{"name. to compare av1 to other codecs in high bit-rates. . I've tried FFmpeg and handbrake using - x264, x265, NVENC, with various CRF settings and 2 pass. 1 C A fork of aom-av1-psy, which is a fork of aomenc. Well, and build shiny graphs of course. except the av1 one, with much much higher score. FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more! 使用vmaf笔记 安装vmaf. Stars - the number of stars that a project has on GitHub. Both videos are not synced: reference. Write better code with AI Code review. 264, HEVC/H. Calculate various video quality metrics with FFmpeg. Designed for and tuned for use in evaluating streams encoded for multiple-resolution rungs on an encoding ladder, VMAF is the engine behind Netflix's highly-respected per-title and per-clip encoding stacks. Activity is a relative number indicating how actively a project is being developed. 6. Code Issues Pull requests A Novel Approach to Video Super-Resolution using Frame Recurrence and Generative Adversarial Networks | Python3 | PyTorch | OpenCV2 |. Recent commits have higher weight than older. 8725, VMAF=67. This tool allows users to convert MP4 files to the AV1 format using `ffmpeg` and then calculates the VMAF and PSNR. 0+): <a. Recent commits have higher weight than older. FFMetrics - Visualizes Video Quality Metrics (PSNR, SSIM & VMAF) calculated by ffmpeg. Therefore, for each 4 K segment we have the following data: its 38 features obtained from the 240p resolution, the VMAF, and the CRF that yields that VMAF (when encoding the video using VP9 at. Since these videos contain dominant temporal artifacts, lower VMAF performance indicates that the temporal component in VMAF is insufficient to capture frame rate. vmaf/model is a directory which contains different models used by the iqa-vmaf plugin. The Alliance for Open Media (AOMedia), consisting of several industry giants like Google, Microsoft, Mozilla, and Netflix,. It is important how video streams supplied to libvmaf filter. Got this error. VMAF was released on Github in 2016 and has had considerable updates since that time. GUI for AV1 (aomenc, rav1e & svt-av1) video-compare. When you are done, save the queue to a file for later, or run it now with the encode button. 2-pass rate control modes can distribute the bits more optimally within the frame and can reach closer to the target bitrate, especially for CBR encoding. ), try "Full Reference Video Quality Monitor". Automate any workflow Packages. This is much faster than trying to process an entire movie or tv show through VMAF/PSNR. 2H view distance, it takes a higher VMAF for lower resolutions on the same display height / distance ratio to. I was comparing two 4K videos using x265 1-CR19 and the other CR22, but I am getting numbers like the below, and when I look at it I can see the difference. VMAF has superior correlation with subjective judgments on existing FR-VQA databases. Open-source C# projects categorized as Ssim. I tried to make some VMAF testing with the VMAF GUI. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use FFMetrics - Visualizes Video Quality Metrics (PSNR, SSIM & VMAF) calculated by ffmpeg. Then I'll test the output quality with "VMAF". Recent commits have higher weight than older. Stream Analyzer. ts. sub. NET Library for WinUI 3/ WPF/WinForms (based on FFmpeg/DirectX) Audio Switcher - . all the tests are very same. json model file by default, which is "based on the assumption that the viewers sit in front of a 1080p display in a living room-like environment with the viewing. json. mp4. The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. Features: PSNR, SSIM, VMAF visual quality metrics. Popularity Index About. Contrary to what I've read about rav1e, in my experience I have had fantastic quality (VMAF in the high 90s and 100) and up to 80% savings on bitrate in my tests of some personal videos (family videos from Android phones, so H. exe FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!然而，在我的FFmpeg GUI（FFMetrics）中，我确实有相反的顺序。 原因是 -- 可以指定多个失真文件给程序，这样更容易理解和使用。 原因是 -- 可以指定多个失真文件给程序，这样更容易理解和使用。Experimenting with av1an and aomenc. Using FFmpeg+libvmaf is very powerful, as you can create complex filters to calculate VMAF directly on videos of different encoding formats and resolutions. Video Multi-Method Assessment Fusion (VMAF) is an open source full-reference video quality assessment algorithm developed by Netflix in 2016. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use . FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. Figure 6. Hopefully, its compilation with FFmpeg will remain smooth as well. 1. Compares VMAF/SSIM/PSNR numerically & via graphs. json Use the 4k version if you have a 4K reference sample. Encoding stuck (or maybe very slow) at. except the av1 one, with much much higher score. The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. json vmaf_v0. EDIT: I am using the latest version 1. Further,. Recommended to install vapoursynth with lsmash for faster and better processing. A tool to make encoding faster and easier for AV1 encoders. It works if I run it on the system it was built on. It offers higher correlation with subjective opinions compared to many conventional quality assessment methods. How to VMAF (with ffmpeg), journey to the center of despair-- VMAF installation guide on Windows ; VMAF in FFmpeg – Installation and Usage Guide for Ubuntu-- VMAF installation guide on Ubuntu GUI Visualization Tools ; VideoBench-- VMAF, PSNR and bitrate analyzer ; FFMetrics-- Windows-centric GUI for PSNR, SSIM and VMAF. Code Issues Pull requests Discussions Allows for Media to be Re-Encoded at a certain Visual Quality Level utilizing FFMPEG for various codec support with VMAF. exe . 1. After you are done using the. Growth - month over month growth in stars. OK, now let’s move onto the command strings. Compare vmaf-gui vs Xabe. A GUI built using C# to make Netflix's VMAF easier to use. 2 36 10. Recent commits have higher weight than older. The yellow line represents low-frame VMAF scores, or the lowest frame in the encoded file, a harbinger of transient quality issues. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. Provides tons of features. 1. Be aware, that VMAF's libvmaf library will soon be dropped and replaced with a new library called libvmaf_rc. vmaf-gui - A GUI built using C# to make Netflix's VMAF easier to use . I just used that:NEAV1E is a GUI for AV1 encoders - aomenc, rav1e, svt-av1 & vp9. Discussion. In my own tinkering I found that on a 1080p computer monitor at around 2. Contribute to zymill/hysVideoQC development by creating an account on GitHub. --vmaf-path <VMAF_PATH> Path to VMAF model (used by --vmaf and --target-quality) If not specified, ffmpeg's default is used. aomenc is AOMedia’s standalone encoding executable and is available here. 2121-1, vim-plugin-runtime, xxd: Conflicts: vim, vim. exe . Stars - the number of stars that a project has on GitHub. StaxRip is a powerful video/audio encoding GUI for Windows. These are linearly mapped to VMAF scores from 0-100, with 100 representing an “excellent” rating, and 20 corresponding to poor. This talk focuses on the latest VMAF improvements and enrichments, such as speed optimization, accurate models to predict mobile and 4K TV viewing conditions, and adding a confidence interval to quantify the level of confidence in the quality prediction. New: FFMpeg arguments for getting metrics can be defined in FFMetrics. 🔬 How does this program work? This program will split the given video file into chunks (scene based splitting or equal chunks). Growth - month over month growth in stars. vmaf-gui has no bugs, it has no vulnerabilities,. This program has built-in support for the following models: vmaf_v0. VMAF is a perceptual video quality assessment algorithm developed by Netflix. 2be41dd. Growth - month over month growth in stars. Recent commits have higher weight than older. Metric Calculation with FFmpeg. VSDB - VapourSynth Database Home VSRepo Gui AVSRepo Gui VS Portable FATPACK Plugin statistics. 44 [Right] PSNR=22. 8 times the original but get scores only ranged from 72. 04. Two model files are provided, vmaf_v0. does that make any sense to you? the x265 nearly. vmaf-gui A GUI built using C# to make Netflix's VMAF easier to use (by ThatNerdUKnow)So I possess --enable-libvmaf enabled img1 I 'm using this command ffmpeg -i distorted. 1. 5. staxrip - 🎞 Video encoding GUI for Windows. However, VMAF is only available through the commandline or as an extension to FFMPEG. VCEEnc - VCEによる高速エ. json) is trained to predict the quality of videos displayed on a 1080p HDTV in a living-room-like environment. nmkoder - Media encoding, muxing, analysis toolkit for Windows . When installing under Windows, select the option add Python to PATH in the installer. 0697) with the same video and bitrate. NotEnoughAV1Encodes - GUI for AV1 (aomenc, rav1e & svt-av1) . FFmpeg. exe . The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. conf. VMAF. 0 C# AV1/HEVC/VP9/H264 parallel encoder GUI for FFmpeg with preview/comparisonUse the --vmaf-model-path option to set the path to a different VMAF model file. For PSNR, the community consensus is that for 1080p encodes, a score of 45 or above is good. ab-av1 is using an estimated mean-VMAF of the whole file, rather than a per-chunk VMAF. In the most basic use case, the command to calculate VMAF is like this: ffmpeg -i distorted. 7z. 61% of VMAF quality and 96. The default is vmaf_v0. It predicts subjective video quality. 0 (now using rust+react)この辺のissueを読むと、-enc-mode と -cpu-used の値の変化による画質の変化は似たりよったりらしいです。 ってことでこの記事ではlibaomで利用している-cpu-usedの値に合わせることにしました。. Branches Tags. json. NAudio - Audio and MIDI library for . The program allows you to select files without dealing with command line, calculate & visualize PSNR, SSIM & VMAF quality metrics for all of them in one go. Next, follow the Generate Password Password link at the top of the page. fifonik. A GUI built using C# to make Netflix's VMAF easier to use (by ThatNerdUKnow) #Video #GUI #Vmaf #Ffmpeg #Ssim #Psnr #vmaf-gui. Code Calamity used VMAF to measure the image quality differentiation between AMF, NVENC and Intel QuickSync, with Big Buck Bunny as the reference video. pkl 即可。. AV1AN: Target VMAF mode may not work with SVT-AV1; Per-track audio settings do not work correctly when muxing from multiple input files (still) Installation: Download; Unzip anywhere using 7zip (where you don't need administrator permissions - Don't use Program Files) Run Nmkoder. 0 C# FFMpegCore VS NotEnoughAV1Encodes GUI for AV1 (aomenc, rav1e & svt-av1)Hello, Firstly, thank you for writing such a straight-forward GUI for VMAF. NVEncCは、NVIDIA GPUのハードウェアエンコーダーであるNVENCを利用して、高速に動画をエンコードするコマンドラインツールです。このページでは、NVEncCのオプションリストを日本語で説明しています。オプションは入力フォーマット、出力フォーマット、ビデオフィルター、エンコード設定など. NET Library for WinUI 3/ WPF/WinForms (based on FFmpeg/DirectX) NotEnoughAV1Encodes - GUI for AV1 (aomenc, rav1e & svt-av1) FF-Video-Converter - Simple video converter with cutting and cropping functionality, powered by the ffmpeg. qencoder is the first gui av1 encoder to support proper video queueing. x supports JSON-based model files only. automatic-ripping. However running vmaf. VMAF. 1. 5. A GUI built using C# to make Netflix's VMAF easier to use Project mention: What's a preferred constant quality for h265 1080p? | /r/handbrake | 2023-04-14. If you're like me, you find the functionality of VMAF very useful but very time consuming and confusing to use at first. Links:FFmpeg: Master: The vmafossexec command line tool has been deprecated and replaced with the more flexible and powerful vmaf tool. Manage all types of time series data in a single, purpose-built database. VMAF follows a machine-learning based approach to first extract a number of quality. The generateVMAFGraph function takes an array of VMAF scores as input and uses the Chart. VMAF is a codec-independent objective metric of comparable quality between source and output, using USC & Netflix's (and others) algorithm, which attempts to produce a model-based metric that is superior to other. 8 and 74. json vmaf_4k_v0. It leans on Human Visual System. Business, Economics, and Finance. A GUI built using C# to make Netflix's VMAF easier to use - Issues · ThatNerdUKnow/vmaf-guiThe number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. Could not load tags. VMAF is a machine learning based video quality assessment method, originally designed for streaming applications, which combines multiple quality metrics and video features through SVM regression. FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. Get Metrics: Calculate quality metrics like VMAF, SSIM, PSNR; Transfer Color Metadata: Copy. For an introduction to the libvmaf v2. pkl file and . FastFlix - FastFlix is a free GUI for HEVC and AV1 encoding, GIF/WebP/AVIF creation, and more!. pkl is 1920x1080 (by default), vmaf_4k_v0.