public function video_ffmpeg::generate_thumbnails in Video 7
Same name and namespace in other branches
- 6.4 transcoders/video_ffmpeg.inc \video_ffmpeg::generate_thumbnails()
Overrides transcoder_interface::generate_thumbnails
1 method overrides video_ffmpeg::generate_thumbnails()
- video_ffmpeg_php::generate_thumbnails in transcoders/
video_ffmpeg_php.inc - Generate video thumbs.
File
- transcoders/
video_ffmpeg.inc, line 50
Class
Code
public function generate_thumbnails($video) {
global $user;
// Setup our thmbnail path.
$video_thumb_path = variable_get('video_thumb_path', 'videos/thumbnails');
// Get the file system directory.
// @todo : get the field file system settings to this
$schema_thumb_path = file_default_scheme() . '://' . $video_thumb_path . '/' . $video['fid'];
file_prepare_directory($schema_thumb_path, FILE_CREATE_DIRECTORY);
// Total thumbs to generate
$total_thumbs = variable_get('video_thumbs', 5);
$videofile = file_load($video['fid']);
//get the actual video file path from the stream wrappers
$videopath = drupal_realpath($videofile->uri);
//get the playtime from the current transcoder
$duration = $this
->get_playtime($videopath);
$files = NULL;
for ($i = 1; $i <= $total_thumbs; $i++) {
$seek = $duration / $total_thumbs * $i - 1;
//adding minus one to prevent seek times equaling the last second of the video
$filename = file_munge_filename("video-thumb-" . $video['fid'] . "-{$i}.jpg", '', TRUE);
$thumbfile = $schema_thumb_path . '/' . $filename;
//skip files already exists, this will save ffmpeg traffic
if (!is_file(drupal_realpath($thumbfile))) {
//setup the command to be passed to the transcoder.
$command = strtr($this->params['thumb_command'], array(
'!videofile' => '"' . $videopath . '"',
'!seek' => $seek,
'!thumbfile' => '"' . drupal_realpath($thumbfile) . '"',
));
// Generate the thumbnail from the video.
$command_output = $this
->run_command($command);
if (!file_exists(drupal_realpath($thumbfile))) {
$error_param = array(
'%file' => $thumbfile,
'%cmd' => $command,
'%out' => $command_output,
);
$error_msg = t("Error generating thumbnail for video: generated file %file does not exist.<br />Command Executed:<br />%cmd<br />Command Output:<br />%out", $error_param);
// Log the error message.
watchdog('transcoder', $error_msg, array(), WATCHDOG_ERROR);
continue;
}
}
// Begin building the file object.
// @TODO : use file_munge_filename()
$file = new stdClass();
$file->uid = $user->uid;
$file->status = 0;
$file->filename = trim($filename);
$file->uri = $thumbfile;
$file->filemime = file_get_mimetype($filename);
$file->filesize = filesize(drupal_realpath($thumbfile));
$file->timestamp = time();
$files[] = $file;
}
return $files;
}