File

sites/all/modules/ulmus/video_filter/video_filter.module, line 119

Video filter is a highly flexible and easy extendable filter module to embed any type of video in your site using a simple tag.

Code

function _video_filter_process($text, $filter, $format, $langcode, $cache, $cache_id) {
  if (preg_match_all('/\[video(\:(.+))?( .+)?\]/isU', $text, $matches_code)) {
    foreach ($matches_code[0] as $ci => $code) {
      $video = array(
        'source' => $matches_code[2][$ci],
        'autoplay' => $filter->settings['video_filter_autoplay'],
        'related' => $filter->settings['video_filter_related'],
      );

      // Pick random out of multiple sources separated by comma (,).
      if (strstr($video['source'], ',')) {
        $sources = explode(',', $video['source']);
        $random = array_rand($sources, 1);
        $video['source'] = $sources[$random];
      }

      // Load all codecs.
      $codecs = video_filter_get_codec_info();

      // Find codec.
      foreach ($codecs as $codec_name => $codec) {
        if (!is_array($codec['regexp'])) {
          $codec['regexp'] = array($codec['regexp']);
        }

        // Try different regular expressions.
        foreach ($codec['regexp'] as $delta => $regexp) {
          if (preg_match($regexp, $video['source'], $matches)) {
            $video['codec'] = $codec;
            $video['codec']['delta'] = $delta;
            $video['codec']['matches'] = $matches;
            // Used in theme function:
            $video['codec']['codec_name'] = $codec_name;
            break 2;
          }
        }
      }

      // Codec found.
      if (isset($video['codec'])) {
        // Override default attributes.
        if ($matches_code[3][$ci] && preg_match_all('/\s+([a-zA-Z_]+)\:(\s+)?([0-9a-zA-Z\/]+)/i', $matches_code[3][$ci], $matches_attributes)) {
          foreach ($matches_attributes[0] as $ai => $attribute) {
            $video[$matches_attributes[1][$ai]] = $matches_attributes[3][$ai];
          }
        }

        // Use configured ratio if present, otherwise use that from the codec,
        // if set. Fall back to 1.
        $ratio = 1;
        if (isset($video['ratio']) && preg_match('/(\d+)\/(\d+)/', $video['ratio'], $tratio)) {
          // Validate given ratio parameter.
          $ratio = $tratio[1] / $tratio[2];
        }
        elseif (isset($video['codec']['ratio'])) {
          $ratio = $video['codec']['ratio'];
        }

        // Sets video width & height after any user input has been parsed.
        // First, check if user has set a width.
        if (isset($video['width']) && !isset($video['height'])) {
          $video['height'] = $filter->settings['video_filter_height'];
        }
        // Else, if user has set height.
        elseif (isset($video['height']) && !isset($video['width'])) {
          $video['width'] = $video['height'] * $ratio;
        }
        // Maybe both?
        elseif (isset($video['height']) && isset($video['width'])) {
          $video['width'] = $video['width'];
          $video['height'] = $video['height'];
        }
        // Fall back to defaults.
        elseif (!isset($video['height']) && !isset($video['width'])) {
          $video['width'] = $filter->settings['video_filter_width'] != '' ? $filter->settings['video_filter_width'] : 400;
          $video['height'] = $filter->settings['video_filter_height'] != '' ? $filter->settings['video_filter_height'] : 400;
        }

        // Default value for control bar height.
        $control_bar_height = 0;
        if (isset($video['control_bar_height'])) {
          // Respect control_bar_height option if present.
          $control_bar_height = $video['control_bar_height'];
        }
        elseif (isset($video['codec']['control_bar_height'])) {
          // Respect setting provided by codec otherwise.
          $control_bar_height = $video['codec']['control_bar_height'];
        }

        // Resize to fit within width and height repecting aspect ratio.
        if ($ratio) {
          $scale_factor = min(array(
            ($video['height'] - $control_bar_height),
            $video['width'] / $ratio,
          ));
          $video['height'] = round($scale_factor + $control_bar_height);
          $video['width'] = round($scale_factor * $ratio);
        }

        $video['autoplay'] = (bool) $video['autoplay'];
        $video['align'] = (isset($video['align']) && in_array($video['align'], array(
          'left',
          'right',
          'center',
        ))) ? $video['align'] : NULL;

        // Let modules have final say on video parameters.
        drupal_alter('video_filter_video', $video);

        if (isset($video['codec']['html5_callback']) && $filter->settings['video_filter_html5'] == 1 && is_callable($video['codec']['html5_callback'], FALSE)) {
          $replacement = call_user_func($video['codec']['html5_callback'], $video);
        }
        elseif (is_callable($video['codec']['callback'], FALSE)) {
          $replacement = call_user_func($video['codec']['callback'], $video);
        }
        else {
          // Invalid callback.
          $replacement = '<!-- VIDEO FILTER - INVALID CALLBACK IN: ' . $pattern . ' -->';
        }
      }
      // Invalid format.
      else {
        $replacement = '<!-- VIDEO FILTER - INVALID CODEC IN: ' . $code . ' -->';
      }

      $text = str_replace($code, $replacement, $text);
    }
  }

  return $text;
}