Add avif support

README.md

@@ -74,6 +74,7 @@ $type = $sniffer->setFromFilename('images/image.jpg')->getType();
 - Scalable Vector Graphics (SVG)
 - Tagged Image File Format (TIFF)
 - Image encoded Photoshop Document file format (PSD)
+- AV1 Image File Format (AVIF)
 
 ### Archives
 

src/Types/ImageAvif.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Intervention\MimeSniffer\Types;
+
+use Intervention\MimeSniffer\AbstractBinaryType;
+
+class ImageAvif extends AbstractBinaryType
+{
+    /**
+     * Name of content type
+     *
+     * @var string
+     */
+    public $name = "image/avif";
+
+    /**
+     * Signature pattern
+     *
+     * @var string
+     */
+    protected $pattern = "/^0000001C66747970/";
+}

tests/ImageAvifTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Intervention\MimeSniffer\Test;
+
+use PHPUnit\Framework\TestCase;
+use Intervention\MimeSniffer\MimeSniffer;
+use Intervention\MimeSniffer\Types\ImageAvif;
+
+class ImageAvifTest extends TestCase
+{
+    public $sniffer;
+    public $type;
+
+    protected function setUp(): void
+    {
+        $this->sniffer = MimeSniffer::createFromFilename(__DIR__ . '/../tests/stubs/avif');
+        $this->type = $this->sniffer->getType();
+    }
+
+    public function testType()
+    {
+        $this->assertInstanceOf(ImageAvif::class, $this->type);
+    }
+
+    public function testIsImage()
+    {
+        $this->assertTrue($this->type->isImage());
+    }
+}