vmaf | Perceptual video quality assessment based on multi-method | Computer Vision library

by Netflix Python Version: v2.3.1 License: Non-SPDX

X-Ray Key Features Code Snippets(3)Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | vmaf Summary

vmaf is a Python library typically used in Institutions, Learning, Education, Artificial Intelligence, Computer Vision, Pytorch applications. vmaf has no bugs, it has no vulnerabilities and it has medium support. However vmaf build file is not available and it has a Non-SPDX License. You can download it from GitHub.

VMAF is a perceptual video quality assessment algorithm developed by Netflix. This software package includes a stand-alone C library libvmaf and its wrapping Python library. The Python library also provides a set of tools that allows a user to train and test a custom VMAF model. Read this tech blog post for an overview, this post for the tips of best practices, and this post for our latest efforts on speed optimization, new API design and the introduction of a codec evaluation-friendly NEG mode. Also included in libvmaf are implementations of several other metrics: PSNR, PSNR-HVS, SSIM, MS-SSIM and CIEDE2000.

Support

Quality

Security

License

Reuse

Support

vmaf has a medium active ecosystem.

It has 3655 star(s) with 697 fork(s). There are 472 watchers for this library.

It had no major release in the last 12 months.

There are 94 open issues and 412 have been closed. On average issues are closed in 489 days. There are 14 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of vmaf is v2.3.1

Quality

vmaf has 0 bugs and 0 code smells.

Security

vmaf has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

vmaf code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

vmaf has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

vmaf releases are available to install and integrate.

vmaf has no build file. You will be need to create the build yourself to build the component from source.

vmaf saves you 20859 person hours of effort in developing the same functionality from scratch.

It has 42018 lines of code, 1492 functions and 173 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed vmaf and discovered the below as its top functions. This is intended to give you an instant insight into vmaf implemented functionality, and help decide if they suit your requirements.

Train a model on a dataset
Read a dataset
Run the FeatureExtractor
Get a fextractor instance
Return a list of atom features
Wrapper for VAF_CV
Train a test on a dataset
Runs vaf_cv
Call the command - line tool
Convert ffmpeg2 pixel format to pixel format
Evaluate the VQM accuracy
Return a list of indices that match a function
Runs a test on a dataset
Get the path without extension
Run the executor
Read a vmaf dataset
Wrapper function for VAF
Generate the result for the analysis
R Compute the significance H - H
Wrapper function for VMAFexec
Evaluate the model
Run the command - line tool
Get the quality scores for a given asset
Run nested kfold cross validation
Get the quality scores from the log file
Runs a FeatureAssembler on the given asset
Run executors in parallel
Find the next point in the grid
Convert the results to XML

Get all kandi verified functions for this library.

vmaf Key Features

No Key Features are available at this moment for vmaf.

vmaf Examples and Code Snippets

default

Perl

Lines of Code : 136

License : No License

Copy

./configure --help

一: github地址：https://github.com/libav/gas-preprocessor

二: 到我的github下载:请查看文章底部

把gas-preprocessor.pl文件与执行sh文件放到同一目录下.

一:
1. 下载最新的gas-preprocessor.pl
2.右键点Finder->前往文件夹，输入/usr，
在里面新建local文件夹，进入local文件夹中![C compiler test failed.p

ffmpeg-2.8

Shell

Lines of Code : 73

License : Permissive (MIT)

Copy

docker run sitkevij/ffmpeg -buildconf
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1

Usage

Python

Lines of Code : 59

License : Permissive (MIT)

Copy

usage: main.py [-h] [--av1-cpu-used <1-8>] [-cl <1-60>] [-crf <0-51> [<0-51> ...]] [-dp DECIMAL_PLACES] [-e {x264,x265,libaom-av1}] [-i <1-600>] [-subsample SUBSAMPLE]
               [--n-threads N_THREADS] [-ntm] [-o OU

Community Discussions

Trending Discussions on vmaf

List null fields recursively with Shapeless

Bash - case statement always enters default

Right way to use vmaf with ffmpeg

QUESTION

List null fields recursively with Shapeless

Asked 2022-Mar-24 at 15:00

I'm trying to list null fields recursively with Shapeless. But it doesn't seem to show all the fields:

https://scastie.scala-lang.org/PtLdSRC2Qfipu054Hzerrw

...

ANSWER

Answered 2022-Mar-24 at 15:00

I am not sure this is exactly what you want, but I hope you can tweak it to make it work for your need. I have considered the following as nulls:

All Nones
Any other types which are null
Recursive nulls or Nones found in case classes and/or Options

You can add further implicits to handle other cases:

Source https://stackoverflow.com/questions/71577406

QUESTION

Bash - case statement always enters default

Asked 2021-Aug-11 at 11:15

I am writing a Bash script to parse a CSV file (values separated by ; character) and extract some arguments. Depending on the current argument read from the file a specific string is appended to a variable. However, the case statement always enters the default state *) and I can't figure out why.

I have no problems reading the .csv file. Already did that and displayed the output of the arguments read from the file. Everything works perfectly. The problem is that the case statement is not processed as expected.

So, the problem is not reading the .csv file but the processing of the arguments in the case statement.

This is my code:

...

ANSWER

Answered 2021-Aug-11 at 11:07

Apparently, the argument (here: "valueX") read from the file is correct

Since you consider the quotes being part of the argument to be correct, in order to match them with a case pattern, you have to escape the pattern quotes:

Source https://stackoverflow.com/questions/68740361

QUESTION

Right way to use vmaf with ffmpeg

Asked 2021-May-20 at 05:54

I am trying to calculate the VMAF score of a processed video wrt the original file.

Command I have used:

...

ANSWER

Answered 2021-May-19 at 09:22

The FFmpeg filter expects the first input to be the encoded video stream and the 2nd input to be the reference stream.

It may be (I haven't checked) that the VMAF computation is symmetric with relation to inputs, so in effect, the order may not matter.

Source https://stackoverflow.com/questions/67598772

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install vmaf

You can download it from GitHub.
You can use vmaf like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

There is an overview of the documentation with links to specific pages, covering FAQs, available models and metrics, software usage guides, and a list of resources.

Find more information at: