Creates "barcode" style images from video files, kind of like http://moviebarcode.tumblr.com/

barcoder.php

<?php

$videoFiles = array();

if ($_SERVER['argc'] <= 1) {
	die('No files passed in command line');
}

array_shift($_SERVER['argv']);
$videoFiles = $_SERVER['argv'];
sort($videoFiles);

foreach ($videoFiles as $videoFile) {
	if (!file_exists($videoFile)) {
		die(sprintf('Unable to read file %s', $videoFiles));
	}

	$hash = hash('md5', $videoFile);
	$path = dirname($videoFile).DIRECTORY_SEPARATOR.$hash.DIRECTORY_SEPARATOR;
	if ((file_exists($path) && !is_dir($path)) || (!file_exists($path) && !mkdir($path))) {
		die(sprintf('Unable to create directory %s', $path));
	}

	shell_exec('ffmpeg -i '.escapeshellarg($videoFile).' -q:v 1 "'.$path.'img%06d.jpg"');
	shell_exec('gm mogrify -resize 1x720! -format png "'.$path.'\\*.jpg"');

	$pngFiles = array();
	$di = new DirectoryIterator($path);
	foreach ($di as $file) {
		if ($file->isDot() || $file->isDir()) {
			continue;
		}

		$ext = pathinfo($file->getPathname(), PATHINFO_EXTENSION);
		if (strtolower($ext) === 'png') {
			$pngFiles[] = $file->getPathname();
		}
	}

	$total = count($pngFiles);
	$batch = 1000;

	$comboFiles = array();

	for ($i = 0; $i <= $total; $i += $batch) {
		$batchStr = sprintf('%06d', $i).'-'.sprintf('%06d', ($i + $batch));
		$batchPath = $path.$batchStr.DIRECTORY_SEPARATOR;

		if (!file_exists($batchPath) && !mkdir($batchPath)) {
			die('Unable to create directory (batch)');
		}

		sort($pngFiles);
		$batchFiles = array_splice($pngFiles, 0, $batch);

		foreach ($batchFiles as $file) {
			rename($file, $batchPath.basename($file));
		}

		shell_exec('gm montage +frame +shadow +label -tile '.$batch.'x1 -geometry +0+0 "'.$batchPath.'*.png" "'.$path.$batchStr.'.png"');
		$comboFiles[] = $batchStr.'.png';
	}

	$comboPath = $path.'combo'.DIRECTORY_SEPARATOR;

	if (!file_exists($comboPath) && !mkdir($comboPath)) {
		die('Unable to create directory (combo)');
	}

	foreach ($comboFiles as $comboFile) {
		rename($path.$comboFile, $comboPath.$comboFile);
	}

	shell_exec('gm montage +frame +shadow +label -tile '.count($comboFiles).'x1 -geometry +0+0 "'.$comboPath.'*.png" "'.$path.'\\max.png"');
	shell_exec('gm convert -resize 1280x720! "'.$path.'\\max.png" "'.dirname($videoFile).'\\'.pathinfo($videoFile, PATHINFO_FILENAME).'.png"');
	shell_exec('rmdir /S /Q '.$path);
}

orderer.php

<?php

function rgb($int) {
	$r = ($int >> 16) & 0xFF;
	$g = ($int >> 8) & 0xFF;
	$b = $int & 0xFF;

	return array($r, $g, $b);
}

function hsl($a) {
	//http://stackoverflow.com/questions/11923659/javascript-sort-rgb-values
	list($r, $g, $b) = rgb($a);

	$max = max($r, $g, $b);
	$min = min($r, $g, $b);
	$h = $s = $l = ($max + $min) / 2;

	if ($max == $min) {
		$h = $s = 0;
	} else {
		$d = $max - $min;
		if ($l > 0.5) {
			$tmp = (2 - $max - $min);
			$s = ($tmp === 0) ? 0 : $d / $tmp;
		} else {
			$s = ($d / ($max + $min));
		}

		switch ($max) {
			case $r:
				$h = ($g - $b) / $d + (($g < $b) ? 6 : 0);
				break;
			case $g:
				$h = ($b - $r) / $d + 2;
				break;
			case $b:
				$h = ($r - $g) / $d + 4;
				break;
		}

		$h /= 6;
	}

	return array($h, $s, $l);
}

function sort_basic($a, $b) {
	if ($a[2] == $b[2]) {
		return 0;
	}

	return ($a[2] < $b[2]) ? -1 : 1;
}

function sort_brightness($a, $b) {
	list($ar, $ag, $ab) = rgb($a[2]);
	list($br, $bg, $bb) = rgb($b[2]);

	$brightnessA = ($ar + $ag + $ab) / 3;
	$brightnessB = ($br + $bg + $bb) / 3;

	if ($brightnessA == $brightnessB) {
		return 0;
	}

	return ($brightnessA < $brightnessB) ? -1 : 1;
}

function sort_luminance($a, $b) {
	list($ar, $ag, $ab) = rgb($a[2]);
	list($br, $bg, $bb) = rgb($b[2]);

	$luminanceA = (0.2126 * $ar) + (0.7152 * $ag) + (0.0722 * $ab);
	$luminanceB = (0.2126 * $br) + (0.7152 * $bg) + (0.0722 * $bb);

	if ($luminanceA == $luminanceB) {
		return 0;
	}

	return ($luminanceA < $luminanceB) ? -1 : 1;
}

function sort_hue($a, $b) {
	list($ar, $ag, $ab) = rgb($a[2]);
	list($br, $bg, $bb) = rgb($b[2]);

	$hueA = atan2(sqrt(3) * ($ag - $ab), 2 * ($ar - $ag - $ab));
	$hueB = atan2(sqrt(3) * ($bg - $bb), 2 * ($br - $bg - $bb));

	if ($hueA == $hueB) {
		return 0;
	}

	return ($hueA < $hueB) ? -1 : 1;
}

function sort_hsl($a, $b) {
	list ($ah, $as, $al) = hsl($a[2]);
	list ($bh, $bs, $bl) = hsl($b[2]);

	if ($ah == $bh) {
		if ($as == $bs) {
			if ($al == $bl) {
				return 0;
			}

			return ($al < $bl) ? -1 : 1;
		}

		return ($as < $bs) ? -1 : 1;
	}

	return ($ah < $bh) ? -1 : 1;
}

function sort_hls($a, $b) {
	list ($ah, $as, $al) = hsl($a[2]);
	list ($bh, $bs, $bl) = hsl($b[2]);

	if ($ah == $bh) {
		if ($al == $bl) {
			if ($as == $bs) {
				return 0;
			}

			return ($as < $bs) ? -1 : 1;
		}

		return ($al < $bl) ? -1 : 1;
	}

	return ($ah < $bh) ? -1 : 1;
}

function sort_lhs($a, $b) {
	list ($ah, $as, $al) = hsl($a[2]);
	list ($bh, $bs, $bl) = hsl($b[2]);

	if ($al == $bl) {
		if ($ah == $bh) {
			if ($as == $bs) {
				return 0;
			}

			return ($as < $bs) ? -1 : 1;
		}

		return ($ah < $bh) ? -1 : 1;
	}

	return ($al < $bl) ? -1 : 1;
}

function sort_lsh($a, $b) {
	list ($ah, $as, $al) = hsl($a[2]);
	list ($bh, $bs, $bl) = hsl($b[2]);

	if ($al == $bl) {
		if ($as == $bs) {
			if ($ah == $bh) {
				return 0;
			}

			return ($ah < $bh) ? -1 : 1;
		}

		return ($as < $bs) ? -1 : 1;
	}

	return ($al < $bl) ? -1 : 1;
}

$file = '[rori] Hentai Ouji to Warawanai Neko - 01 [76056615].png';
$sorts = array('basic', 'brightness', 'luminance', 'hue', 'hsl', 'lhs', 'lsh', 'hls');
$modes = array('stretch', 'column', 'pixel');

$gdOrig = imagecreatefrompng($file);
$w = imagesx($gdOrig); $h = imagesy($gdOrig);

foreach ($modes as $mode) {
	$pixels = array();
	$gdTmp = null;

	echo $mode.':'.PHP_EOL;

	switch ($mode) {
		case 'pixel':
			for ($x = 0; $x < $w; $x++) {
				for ($y = 0; $y < $h; $y++) {
					$pixels[] = array($x, $y, imagecolorat($gdOrig, $x, $y));
				}
			}
			break;

		case 'column':
		case 'stretch':
			shell_exec('gm convert -resize '.$w.'x1! '.escapeshellarg($file).' tmp.png');
			$gdTmp = imagecreatefrompng('tmp.png');

			for ($x = 0; $x < $w; $x++) {
				$pixels[] = array($x, 0, imagecolorat($gdTmp, $x, 0));
			}

			break;
	}

	foreach ($sorts as $sort) {
		echo $sort.PHP_EOL;
		$gdNew = imagecreatetruecolor($w, $h);
		usort($pixels, 'sort_'.$sort);

		switch ($mode) {
			case 'pixel':
				for ($x = 0; $x < $w; $x++) {
					for ($y = 0; $y < $h; $y++) {
						$offset = ($x * $h) + $y;
						$pixel = $pixels[$offset];

						list($r, $g, $b) = rgb($pixel[2]);
						$colour = imagecolorallocate($gdNew, $r, $g, $b);
						imagesetpixel($gdNew, $x, $y, $colour);
					}
				}
				break;

			case 'column':
				foreach ($pixels as $k => $v) {
					// $k = newpos
					// $v[0] = oldpos
					imagecopy($gdNew, $gdOrig, $k, 0, $v[0], 0, 1, $h);
				}
				break;

			case 'stretch':
				foreach ($pixels as $k => $v) {
					imagecopyresized($gdNew, $gdTmp, $k, 0, $v[0], 0, 1, $h, 1, 1);
				}
				break;
		}

		$name = $mode.'-'.$sort.'.png';
		imagepng($gdNew, $name);
		imagedestroy($gdNew);
	}

	if ($gdTmp !== null) {
		imagedestroy($gdTmp);
		$gdTmp = null;
		unlink('tmp.png');
	}
}