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5. yoya/io\_avif

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yoya/io\_avif
=============

AVIF library

2.2(6y ago)1211MITPHPPHP >=5.1.0

Since Oct 19Pushed 6y ago1 watchersCompare

[ Source](https://github.com/yoya/IO_AVIF)[ Packagist](https://packagist.org/packages/yoya/io_avif)[ Docs](http://pwiki.awm.jp/~yoya/?IO_AVIF)[ RSS](/packages/yoya-io-avif/feed)WikiDiscussions master Synced 2mo ago

READMEChangelogDependencies (2)Versions (14)Used By (0)

IO\_AVIF [![Travis Build Status](https://camo.githubusercontent.com/6f0e0943564794e46309c874e740d365e5f31eda4bb3a97a3f768f339e9c78b1/68747470733a2f2f7472617669732d63692e6f72672f796f79612f494f5f415649462e7376673f6272616e63683d6d6173746572)](https://travis-ci.org/yoya/IO_AVIF)
===================================================================================================================================================================================================================================================================================

[](#io_avif-)

AVIF binary perser dumper, converter, powered by PHP. bidirectional converter with AVIF

install
=======

[](#install)

```
% composer require yoya/io_avif

```

require
=======

[](#require)

- IO\_Bit
- [https://github.com/yoya/IO\_Bit](https://github.com/yoya/IO_Bit)
- IO\_ISOBMFF
- [https://github.com/yoya/IO\_ISOBMFF](https://github.com/yoya/IO_ISOBMFF)

script (sample/\*.php)
----------------------

[](#script-samplephp)

- avifdump.php

```
% php vendor/yoya/io_avif/sample/avifdump.php -f input.avif
|
type:ftyp(offset:0 len:32):File Type and compatibility
  major:avif minor:0  alt:mif1, avif, miaf, MA1B
|
type:meta(offset:32 len:304):Information about items
  version:0 flags:0
|-  type:hdlr(offset:44 len:33):Handler reference
      version:0 flags:0
      componentType:^@^@^@^@
      componentSubType:pict
      componentManufacturer:^@^@^@^@
      componentFlags:0
      componentFlagsMask:0
      componentName:^@
(omit...)

```

- aviftree.php

```
% php vendor/yoya/io_avif/sample/aviftree.php -f input.avif
Props:
[1]: ispe width:1280 height:720
[2]: colr subtype:nclx
[3]: av1C
[4]: pixi channels:8,8,8
Items:
[1]: pitm type:av01 ref:0 offset:408 length:57105
     [1?]ispe:1280,720 [2?]colr:nclx [3]av1C [4?]pixi:8,8,8
[2]: cdsc:1 type:Exif ref:0 offset:57513 length:124

```

###  Health Score

29

—

LowBetter than 60% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity9

Limited adoption so far

Community10

Small or concentrated contributor base

Maturity65

Established project with proven stability

 Bus Factor1

Top contributor holds 94.2% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~50 days

Total

13

Last Release

2521d ago

Major Versions

1.11 → 2.02018-12-25

### Community

Maintainers

![](https://www.gravatar.com/avatar/b46aabd829c382299018b8def059e03a2546cad928803c5d5dc14d036251f42c?d=identicon)[yoya](/maintainers/yoya)

---

Top Contributors

[![yoya](https://avatars.githubusercontent.com/u/26040?v=4)](https://github.com/yoya "yoya (131 commits)")[![EwoutH](https://avatars.githubusercontent.com/u/15776622?v=4)](https://github.com/EwoutH "EwoutH (8 commits)")

---

Tags

imageavif

### Embed Badge

![Health badge](/badges/yoya-io-avif/health.svg)

```
[![Health](https://phpackages.com/badges/yoya-io-avif/health.svg)](https://phpackages.com/packages/yoya-io-avif)
```

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