public function hhmmssdd_to_seconds_test()
{
$times = array("0:00:00.01" => 0.01, "00:00:00.50" => 0.5, "00:00:06.00" => 6, "00:00:59.99" => 59.99, "00:01:00.00" => 60.0, "00:07:00.00" => 7 * 60, "00:45:19.00" => 45 * 60 + 19, "03:45:19.00" => 3 * 3600 + 45 * 60 + 19, "126:45:19.00" => 126 * 3600 + 45 * 60 + 19);
foreach ($times as $hhmmssdd => $seconds) {
$this->assert_equal($seconds, movie::hhmmssdd_to_seconds($hhmmssdd));
}
}
/**
* Return the width, height, mime_type, extension and duration of the given movie file.
* Metadata is first generated using ffmpeg (or set to defaults if it fails),
* then can be modified by other modules using movie_get_file_metadata events.
*
* This function and its use cases are symmetric to those of photo::get_file_metadata.
*
* @param string $file_path
* @return array array($width, $height, $mime_type, $extension, $duration)
*
* Use cases in detail:
* Input is standard movie type (flv/mp4/m4v)
* -> return metadata from ffmpeg
* Input is *not* standard movie type that is supported by ffmpeg (e.g. avi, mts...)
* -> return metadata from ffmpeg
* Input is *not* standard movie type that is *not* supported by ffmpeg but is legal
* -> return zero width, height, and duration; mime type and extension according to legal_file
* Input is illegal, unidentifiable, unreadable, or does not exist
* -> throw exception
* Note: movie_get_file_metadata events can change any of the above cases (except the last one).
*/
static function get_file_metadata($file_path)
{
if (!is_readable($file_path)) {
throw new Exception("@todo UNREADABLE_FILE");
}
$metadata = new stdClass();
$ffmpeg = movie::find_ffmpeg();
if (!empty($ffmpeg)) {
// ffmpeg found - use it to get width, height, and duration.
$cmd = escapeshellcmd($ffmpeg) . " -i " . escapeshellarg($file_path) . " 2>&1";
$result = `{$cmd}`;
if (preg_match("/Stream.*?Video:.*?, (\\d+)x(\\d+)/", $result, $matches_res)) {
if (preg_match("/Stream.*?Video:.*? \\[.*?DAR (\\d+):(\\d+).*?\\]/", $result, $matches_dar) && $matches_dar[1] >= 1 && $matches_dar[2] >= 1) {
// DAR is defined - determine width based on height and DAR
// (should always be int, but adding round to be sure)
$matches_res[1] = round($matches_res[2] * $matches_dar[1] / $matches_dar[2]);
}
list($metadata->width, $metadata->height) = array($matches_res[1], $matches_res[2]);
} else {
list($metadata->width, $metadata->height) = array(0, 0);
}
if (preg_match("/Duration: (\\d+:\\d+:\\d+\\.\\d+)/", $result, $matches)) {
$metadata->duration = movie::hhmmssdd_to_seconds($matches[1]);
} else {
if (preg_match("/duration.*?:.*?(\\d+)/", $result, $matches)) {
$metadata->duration = $matches[1];
} else {
$metadata->duration = 0;
}
}
} else {
// ffmpeg not found - set width, height, and duration to zero.
$metadata->width = 0;
$metadata->height = 0;
$metadata->duration = 0;
}
$extension = pathinfo($file_path, PATHINFO_EXTENSION);
if (!$extension || !($metadata->mime_type = legal_file::get_movie_types_by_extension($extension))) {
// Extension is empty or illegal.
$metadata->extension = null;
$metadata->mime_type = null;
} else {
// Extension is legal (and mime is already set above).
$metadata->extension = strtolower($extension);
}
// Run movie_get_file_metadata events which can modify the class.
module::event("movie_get_file_metadata", $file_path, $metadata);
// If the post-events results are invalid, throw an exception. Note that, unlike photos, having
// zero width and height isn't considered invalid (as is the case when FFmpeg isn't installed).
if (!$metadata->mime_type || !$metadata->extension || $metadata->mime_type != legal_file::get_movie_types_by_extension($metadata->extension)) {
throw new Exception("@todo ILLEGAL_OR_UNINDENTIFIABLE_FILE");
}
return array($metadata->width, $metadata->height, $metadata->mime_type, $metadata->extension, $metadata->duration);
}
