degov-8.x-2.0/modules/degov_media_audio/degov_media_audio.module

<?php

use Drupal\degov_common\Common;
use Drupal\Core\Template\Attribute;

/**
 * Implements hook_preprocess().
 */
function degov_media_audio_preprocess(&$variables, $hook, &$info) {
  // Add template suggestions and libraries implemented in this module.
  Common::addThemeSuggestions($variables, $hook, $info, [
    'module_name' => 'degov_media_audio',
    'entity_type' => 'media',
    'entity_bundles' => ['audio'],
    'entity_view_modes' => ['usage', 'preview', 'search', 'embedded', 'reference'],
  ]);
}

/**
 * Implements hook_preprocess_HOOK().
 */
function degov_media_audio_preprocess_media__audio(&$variables) {
  /* @var \Drupal\media\Entity\Media $media */
  $media = $variables['elements']['#media'];

  $variables['audio_url'] = $media->url();
  $variables['audio_attributes'] = new Attribute([
    'id' => 'audio-' . $media->id(),
    'controls' => 'controls',
  ]);

  $variables['content']['audio_date'] = format_date($variables['elements']['#media']->created->value, 'date_medium');
  // Check if the download of the video is allowed by media settings.
  $download_is_allowed = FALSE;
  if ($media->hasField('field_allow_download') && !$media->get('field_allow_download')->isEmpty()) {
    $download_is_allowed = $media->get('field_allow_download')->value ? TRUE : FALSE;
  }

  if (!$media->get('field_audio_mp3')->isEmpty()) {
    /* @var \Drupal\file\Entity\File $file */
    $file = $media->field_audio_mp3->entity;
    if (!empty($file)) {
      $variables['audio_mp3'] = file_create_url($file->getFileUri());
      if (in_array($variables['elements']['#view_mode'], ['full', 'default'])) {
        // If allowed let's prepare the links.
        if ($download_is_allowed) {
          $variables['content']['download_mp3'] = degov_common_file_download_render_array($file);
        }
      }
    }
  }

  if (!$media->get('field_audio_ogg')->isEmpty()) {
    /* @var \Drupal\file\Entity\File $file */
    $file = $media->field_audio_ogg->entity;
    if (!empty($file)) {
      $variables['audio_ogg'] = file_create_url($file->getFileUri());
      if (in_array($variables['elements']['#view_mode'], ['full', 'default'])) {
        // If allowed let's prepare the links.
        if ($download_is_allowed) {
          $variables['content']['download_ogg'] = degov_common_file_download_render_array($file);
        }
      }
    }
  }

  $variables['created'] = $variables['elements']['#media']->created->value;
}

/**
 * Implements hook_ENTITY_TYPE_presave().
 */
function degov_media_audio_media_presave(Drupal\Core\Entity\EntityInterface $entity) {
  $bundle = $entity->bundle();
  if ($bundle == 'audio') {
    // Check if the field for duration is enabled for the media bundle and that it is empty.
    // There is no need to check the duration again and again if it is already set.
    if ($entity->hasField('field_media_duration') && $entity->get('field_media_duration')->isEmpty()) {
      /** @var \Drupal\degov_common\VideoUtils $videoUtils */
      $videoUtils = \Drupal::service('degov_common.video_utils');
      $duration = $videoUtils->getVideoDuration($entity);
      $entity->set('field_media_duration', [0 => ['value' => $duration]]);
    }
  }
}