diff options
Diffstat (limited to 'modules/gallery/helpers/movie.php')
| -rw-r--r-- | modules/gallery/helpers/movie.php | 125 |
1 files changed, 98 insertions, 27 deletions
diff --git a/modules/gallery/helpers/movie.php b/modules/gallery/helpers/movie.php index fb3fab80..eda478c7 100644 --- a/modules/gallery/helpers/movie.php +++ b/modules/gallery/helpers/movie.php @@ -24,6 +24,8 @@ * Note: by design, this class does not do any permission checking. */ class movie_Core { + private static $allow_uploads; + static function get_edit_form($movie) { $form = new Forge("movies/update/$movie->id", "", "post", array("id" => "g-edit-movie-form")); $form->hidden("from_id")->value($movie->id); @@ -82,7 +84,7 @@ class movie_Core { // extract frame at start_time, unless movie is too short $start_time_arg = ($duration >= $start_time + 0.1) ? "-ss " . movie::seconds_to_hhmmssdd($start_time) : ""; - + $input_args = isset($movie_options["input_args"]) ? $movie_options["input_args"] : ""; $output_args = isset($movie_options["output_args"]) ? $movie_options["output_args"] : ""; @@ -110,6 +112,29 @@ class movie_Core { } /** + * Return true if movie uploads are allowed, false if not. This is based on the + * "movie_allow_uploads" Gallery variable as well as whether or not ffmpeg is found. + */ + static function allow_uploads() { + if (empty(self::$allow_uploads)) { + // Refresh ffmpeg settings + $ffmpeg = movie::find_ffmpeg(); + switch (module::get_var("gallery", "movie_allow_uploads", "autodetect")) { + case "always": + self::$allow_uploads = true; + break; + case "never": + self::$allow_uploads = false; + break; + default: + self::$allow_uploads = !empty($ffmpeg); + break; + } + } + return self::$allow_uploads; + } + + /** * Return the path to the ffmpeg binary if one exists and is executable, or null. */ static function find_ffmpeg() { @@ -123,48 +148,94 @@ class movie_Core { /** * 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, $duration) + * + * Use cases in detail: + * Input is standard movie type (flv/mp4/m4v) + * -> return metadata from ffmpeg + * Input is *not* standard movie type that is supported by ffmpeg (e.g. avi, mts...) + * -> return metadata from ffmpeg + * Input is *not* standard movie type that is *not* supported by ffmpeg but is legal + * -> return zero width, height, and duration; mime type and extension according to legal_file + * Input is *not* standard movie type that is *not* supported by ffmpeg and is *not* legal + * -> return zero width, height, and duration; null mime type and extension + * Input is not readable or does not exist + * -> throw exception + * Note: movie_get_file_metadata events can change any of the above cases (except the last one). */ static function get_file_metadata($file_path) { - $ffmpeg = movie::find_ffmpeg(); - if (empty($ffmpeg)) { - throw new Exception("@todo MISSING_FFMPEG"); + if (!is_readable($file_path)) { + throw new Exception("@todo UNREADABLE_FILE"); } - $cmd = escapeshellcmd($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]); + $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 { + $metadata->duration = 0; } - list ($width, $height) = array($matches_res[1], $matches_res[2]); } else { - list ($width, $height) = array(0, 0); + // ffmpeg not found - set width, height, and duration to zero. + $metadata->width = 0; + $metadata->height = 0; + $metadata->duration = 0; } - $extension = strtolower(pathinfo($file_path, PATHINFO_EXTENSION)); - $extension = $extension ? $extension : "flv"; // No extension? Assume FLV. - $mime_type = legal_file::get_movie_types_by_extension($extension); - $mime_type = $mime_type ? $mime_type : "video/x-flv"; // No MIME found? Default to video/x-flv. - - if (preg_match("/Duration: (\d+:\d+:\d+\.\d+)/", $result, $matches)) { - $duration = movie::hhmmssdd_to_seconds($matches[1]); - } else if (preg_match("/duration.*?:.*?(\d+)/", $result, $matches)) { - $duration = $matches[1]; + $extension = pathinfo($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 { - $duration = 0; + // Extension is legal (and mime is already set above). + $metadata->extension = strtolower($extension); } - return array($width, $height, $mime_type, $extension, $duration); + // 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, $metadata->duration); } /** * Return the time/duration formatted in hh:mm:ss.dd from a number of seconds. * Useful for inputs to ffmpeg. * - * Note that this is similar to date("H:i:s", mktime(0,0,$seconds,0,0,0,0)), but unlike this + * Note that this is similar to date("H:i:s", mktime(0,0,$seconds,0,0,0,0)), but unlike this * approach avoids potential issues with time zone and DST mismatch and/or using deprecated * features (the last argument of mkdate above, which disables DST, is deprecated as of PHP 5.3). */ @@ -172,7 +243,7 @@ class movie_Core { return sprintf("%02d:%02d:%05.2f", floor($seconds / 3600), floor(($seconds % 3600) / 60), floor(100 * $seconds % 6000) / 100); } - + /** * Return the number of seconds from a time/duration formatted in hh:mm:ss.dd. * Useful for outputs from ffmpeg. |
