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yoya/io\_isobmff
================

ISOBMFF library

3.0(1y ago)099↓100%MITPHPPHP >=5.1.0

Since Oct 19Pushed 1y ago1 watchersCompare

[ Source](https://github.com/yoya/IO_ISOBMFF)[ Packagist](https://packagist.org/packages/yoya/io_isobmff)[ Docs](http://pwiki.awm.jp/~yoya/?IO_ISOBMFF)[ RSS](/packages/yoya-io-isobmff/feed)WikiDiscussions master Synced 1mo ago

READMEChangelogDependencies (2)Versions (20)Used By (0)

IO\_ISOBMFF
===========

[](#io_isobmff)

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

install
=======

[](#install)

```
% composer require yoya/io_isobmff

```

require
=======

[](#require)

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

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

[](#script-samplephp)

- isobmffdump.php

```
% php vendor/yoya/io_isobmff/sample/isobmffdump.php -f input.heic
type:ftyp(offset:0 len:24):File Type and Compatibility
  major:mif1 minor:0  alt:mif1, heic
type:mdat(offset:24 len:139682):Media Data
  _mdatId:557184717
  _offsetRelative:8
  _itemID:1
type:meta(offset:139706 len:328):Information about items
  version:0 flags:0
    type:hdlr(offset:139718 len:53):Handler reference
      version:0 flags:0
      componentType:
      componentSubType:pict
(omit...)

```

- isobmfftree.php

```
% php vendor/yoya/io_isobmff/sample/isobmfftree.php -f input.heic
Props:
[1]: colr subtype:prof
[2]: hvcC profile:3 level:90 chroma:1
[3]: ispe width:512 height:512
(omit...)
Items:
[1]: dimg from:49 type:hvc1 method:0 ref:0 offset:28986 length:13529
[2]: dimg from:49 type:hvc1 method:0 ref:0 offset:42515 length:20507
(omit...)
[48]: dimg from:49 type:hvc1 method:0 ref:0 offset:804455 length:14580
[49]: pitm type:grid method:1 ref:0 offset:0 length:8
[50]: thmb from:49 type:hvc1 method:0 ref:0 offset:3995 length:22809
[51]: cdsc from:49 type:Exif method:0 ref:0 offset:26804 length:2182

```

derived classes
===============

[](#derived-classes)

- [https://github.com/yoya/IO\_HEIF](https://github.com/yoya/IO_HEIF)
- [https://github.com/yoya/IO\_AVIF](https://github.com/yoya/IO_AVIF)

###  Health Score

33

—

LowBetter than 74% of packages

Maintenance36

Infrequent updates — may be unmaintained

Popularity10

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity67

Established project with proven stability

 Bus Factor1

Top contributor holds 100% 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 ~134 days

Recently: every ~443 days

Total

19

Last Release

703d ago

Major Versions

1.11 → 2.02018-12-25

2.6 → 3.02024-06-05

### 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 (170 commits)")

---

Tags

avifheifisobmff

### Embed Badge

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

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

###  Alternatives

[somehow-digital/typo3-media-processing

Media Processing

101.1k](/packages/somehow-digital-typo3-media-processing)

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