diff --git a/src/Services/ThumbnailGenerators/FlashThumbnailGenerator.php b/src/Services/ThumbnailGenerators/FlashThumbnailGenerator.php
new file mode 100644
index 00000000..f12bf6e3
--- /dev/null
+++ b/src/Services/ThumbnailGenerators/FlashThumbnailGenerator.php
@@ -0,0 +1,44 @@
+<?php
+namespace Szurubooru\Services\ThumbnailGenerators;
+
+class FlashThumbnailGenerator implements IThumbnailGenerator
+{
+	private $imageThumbnailGenerator;
+
+	public function __construct(ImageThumbnailGenerator $imageThumbnailGenerator)
+	{
+		$this->imageThumbnailGenerator = $imageThumbnailGenerator;
+	}
+
+	public function generate($srcPath, $dstPath, $width, $height)
+	{
+		if (!file_exists($srcPath))
+			throw new \InvalidArgumentException($srcPath . ' does not exist');
+
+		$tmpPath = tempnam(sys_get_temp_dir(), 'thumb') . '.png';
+
+		$cmd = sprintf(
+			'dump-gnash --screenshot last --screenshot-file "%s" -1 -r1 --max-advances 15 "%s"',
+			$tmpPath,
+			$srcPath);
+		exec($cmd);
+
+		if (file_exists($tmpPath))
+		{
+			$this->imageThumbnailGenerator->generate($tmpPath, $dstPath, $width, $height);
+			unlink($tmpPath);
+			return;
+		}
+
+		exec('swfrender ' . $srcPath . ' -o ' . $tmpPath);
+
+		if (file_exists($tmpPath))
+		{
+			$this->imageThumbnailGenerator->generate($tmpPath, $dstPath, $width, $height);
+			unlink($tmpPath);
+			return;
+		}
+
+		throw new \RuntimeException('Failed to generate thumbnail');
+	}
+}
diff --git a/src/Services/ThumbnailGenerators/SmartThumbnailGenerator.php b/src/Services/ThumbnailGenerators/SmartThumbnailGenerator.php
new file mode 100644
index 00000000..5dcef4b2
--- /dev/null
+++ b/src/Services/ThumbnailGenerators/SmartThumbnailGenerator.php
@@ -0,0 +1,53 @@
+<?php
+namespace Szurubooru\Services\ThumbnailGenerators;
+
+class SmartThumbnailGenerator implements IThumbnailGenerator
+{
+	private $flashThumbnailGenerator;
+	private $videoThumbnailGenerator;
+	private $imageThumbnailGenerator;
+
+	public function __construct(
+		FlashThumbnailGenerator $flashThumbnailGenerator,
+		VideoThumbnailGenerator $videoThumbnailGenerator,
+		ImageThumbnailGenerator $imageThumbnailGenerator)
+	{
+		$this->flashThumbnailGenerator = $flashThumbnailGenerator;
+		$this->videoThumbnailGenerator = $videoThumbnailGenerator;
+		$this->imageThumbnailGenerator = $imageThumbnailGenerator;
+	}
+
+	public function generate($srcPath, $dstPath, $width, $height)
+	{
+		if (!file_exists($srcPath))
+			throw new \InvalidArgumentException($srcPath . ' does not exist');
+
+		$mime = mime_content_type($srcPath);
+
+		if ($this->isFlash($mime))
+			return $this->flashThumbnailGenerator->generate($srcPath, $dstPath, $width, $height);
+
+		if ($this->isVideo($mime))
+			return $this->videoThumbnailGenerator->generate($srcPath, $dstPath, $width, $height);
+
+		if ($this->isImage($mime))
+			return $this->imageThumbnailGenerator->generate($srcPath, $dstPath, $width, $height);
+
+		throw new \InvalidArgumentException('Invalid thumbnail file type: ' . $mime);
+	}
+
+	private function isFlash($mime)
+	{
+		return $mime === 'application/x-shockwave-flash';
+	}
+
+	private function isVideo($mime)
+	{
+		return $mime === 'application/ogg' or preg_match('/video\//', $mime);
+	}
+
+	private function isImage($mime)
+	{
+		return in_array($mime, ['image/jpeg', 'image/png', 'image/gif']);
+	}
+}
diff --git a/src/Services/ThumbnailGenerators/VideoThumbnailGenerator.php b/src/Services/ThumbnailGenerators/VideoThumbnailGenerator.php
new file mode 100644
index 00000000..621d9f23
--- /dev/null
+++ b/src/Services/ThumbnailGenerators/VideoThumbnailGenerator.php
@@ -0,0 +1,48 @@
+<?php
+namespace Szurubooru\Services\ThumbnailGenerators;
+
+class VideoThumbnailGenerator implements IThumbnailGenerator
+{
+	private $imageThumbnailGenerator;
+
+	public function __construct(ImageThumbnailGenerator $imageThumbnailGenerator)
+	{
+		$this->imageThumbnailGenerator = $imageThumbnailGenerator;
+	}
+
+	public function generate($srcPath, $dstPath, $width, $height)
+	{
+		if (!file_exists($srcPath))
+			throw new \InvalidArgumentException($srcPath . ' does not exist');
+
+		$tmpPath = tempnam(sys_get_temp_dir(), 'thumb') . '.jpg';
+
+		$cmd = sprintf(
+			'ffmpegthumbnailer -i"%s" -o"%s" -s0 -t"12%%"',
+			$srcPath,
+			$tmpPath);
+		exec($cmd);
+
+		if (file_exists($tmpPath))
+		{
+			$this->imageThumbnailGenerator->generate($tmpPath, $dstPath, $width, $height);
+			unlink($tmpPath);
+			return;
+		}
+
+		$cmd = sprintf(
+			'ffmpeg -i "%s" -vframes 1 "%s"',
+			$srcPath,
+			$tmpPath);
+		exec($cmd);
+
+		if (file_exists($tmpPath))
+		{
+			$this->imageThumbnailGenerator->generate($tmpPath, $dstPath, $width, $height);
+			unlink($tmpPath);
+			return;
+		}
+
+		throw new \RuntimeException('Failed to generate thumbnail');
+	}
+}
diff --git a/tests/files/.gitignore b/tests/files/.gitignore
deleted file mode 100644
index d6b7ef32..00000000
--- a/tests/files/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore