Allow Custom Media Types

function rt_custom_allowed_types( $types ){
        if ( isset( $types[0] ) && isset( $types[0]['extensions'] ) ) {
            if ( is_rtmedia_upload_video_enabled() )
                $types[0]['extensions'] .= ',mov,mpg,flv,wmv,mkv,webm,ogv,mxf,asf,vob,mts,qt,mpeg,x-msvideo'; //Allow video types of file to be uploded
            if ( is_rtmedia_upload_music_enabled() )
                $types[0]['extensions'] .= ',wma,ogg,wav,m4a'; //Allow audio types of file to be uploded
        }
        return $types;
    }

    // filter plupload allowed file formats
    add_filter('rtmedia_plupload_files_filter', 'rt_custom_allowed_types', 10, 1);

    function rt_custom_allowed_types_admin_settings( $types ){
        $allowed_video_string = implode(",", $types['video']['extn']);
        $allowed_audio_string = implode(",", $types['music']['extn']);
        $allowed_video = explode(",",$allowed_video_string.',mov,mpg,flv,wmv,mkv,webm,ogv,mxf,asf,vob,mts,qt,mpeg,x-msvideo');
        $allowed_audio = explode(",",$allowed_audio_string.',wma,ogg,wav,m4a');
        $types['video']['extn'] = array_unique( $allowed_video );
        $types['music']['extn'] = array_unique( $allowed_audio );
        return $types;
    }

    // filter to show allowed media types in admin settings
    add_filter('rtmedia_allowed_types', 'rt_custom_allowed_types_admin_settings', 10, 1);