add human-readable duration in feed

This commit is contained in:
dece 2024-02-25 22:51:24 +01:00
parent 5c2b34013f
commit 916d7baec2
3 changed files with 223 additions and 9 deletions

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@ -12,6 +12,7 @@
"doctrine/doctrine-bundle": "^2.9",
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"doctrine/orm": "^2.15",
"php-ffmpeg/php-ffmpeg": "^1.2",
"phpdocumentor/reflection-docblock": "^5.3",
"phpstan/phpdoc-parser": "^1.20",
"sensio/framework-extra-bundle": "^6.1",

199
composer.lock generated
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@ -4,7 +4,7 @@
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@ -1463,6 +1463,53 @@
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@ -1564,6 +1611,95 @@
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@ -2115,6 +2251,67 @@
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View file

@ -8,6 +8,7 @@ use DOMDocument;
use DOMElement;
use DOMText;
use Doctrine\ORM\EntityManagerInterface;
use FFMpeg\FFProbe;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
@ -31,14 +32,20 @@ class FeedService
$this->baseImageUrl = $rootUrl . Constants::IMAGES_BASE_PATH;
}
public const DOCUMENT_VERSION = '2.0';
public const XML_NS = 'http://www.w3.org/2000/xmlns/';
public const ATOM_NS = 'http://www.w3.org/2005/Atom';
public const ITUNES_NS = 'http://www.itunes.com/dtds/podcast-1.0.dtd';
public function generate(Podcast $podcast): string|false
{
$document = new DOMDocument();
$rssElement = new DOMElement('rss');
$document = new DOMDocument(version: '1.0', encoding: 'UTF-8');
$rssElement = $document->createElement('rss');
$rssElement->setAttribute('version', '2.0');
$rssElement->setAttributeNS(self::XML_NS, 'xmlns:atom', self::ATOM_NS);
$rssElement->setAttributeNS(self::XML_NS, 'xmlns:itunes', self::ITUNES_NS);
$document->appendChild($rssElement);
$rssElement->setAttribute('version', $this::DOCUMENT_VERSION);
$channelElement = new DOMElement('channel');
$rssElement->appendChild($channelElement);
$titleElement = new DOMElement('title');
@ -70,15 +77,24 @@ class FeedService
$itemElement->appendChild(new DOMElement('description', $episode->getDescription()));
$itemElement->appendChild(new DOMElement('link', $audioUrl));
$itemElement->appendChild(new DOMElement('guid', $audioUrl));
$enclosureElement = new DOMElement('enclosure');
$itemElement->appendChild($enclosureElement);
$enclosureElement->setAttribute('url', $audioUrl);
$filepath =
$this->parameterBag->get('kernel.project_dir')
($this->parameterBag->get('kernel.project_dir') ?: '')
. '/'
. Constants::BASE_PUBLIC_DIR
. Constants::FILES_BASE_PATH
. $episode->getAudioFilename();
// Use FFProbe to get the media duration, probably the easiest way but requires a working FFMpeg install.
$duration = floatval(FFProbe::create()->format($filepath)->get('duration'));
$duration_minutes = intval($duration / 60);
$duration_seconds = str_pad(strval(intval($duration % 60)), 2, '0', STR_PAD_LEFT);
$duration_str = "{$duration_minutes}:{$duration_seconds}";
$itemElement->appendChild(new DOMElement('itunes:duration', $duration_str, self::ITUNES_NS));
$enclosureElement = new DOMElement('enclosure');
$itemElement->appendChild($enclosureElement);
$enclosureElement->setAttribute('url', $audioUrl);
$enclosureElement->setAttribute('type', mime_content_type($filepath));
$enclosureElement->setAttribute('length', (string) filesize($filepath));
}