1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
<?php
/*
* MV_StreamFiles.php Created on Sep 25, 2007
*
* All Metavid Wiki code is Released Under the GPL2
* for more info visit http:/metavid.ucsc.edu/code
*
* @author Michael Dale
* @email dale@ucsc.edu
* @url http://metavid.ucsc.edu
*/
if ( !defined( 'MEDIAWIKI' ) ) die( 1 );
/*
* MvStreamFile handles the mapping of path types to urls &
* active record style management of the mv_stream_files table
*/
class MV_StreamFile{
var $stream_id='';
var $base_offset='';//base offset from the stream date_start_time
var $duration=''; //duration of clip.
var $file_desc_msg='';
var $path_type ='';
var $id = '';
var $path='';
var $_parent_stream=null;
//@@todo this should not be hard coded... read the header of the file? or extend path_type
var $msg_content_type_lookup = array(
'ao_file_256Kb_MPEG4' =>'video/mp4',
'ao_file_64Kb_MPEG4' =>'video/mp4',
'ao_file_flash_flv' =>'video/x-flv',
'ao_file_MPEG1' =>'video/mpeg',
'ao_file_MPEG2' =>'video/mpeg-2',
'mv_ogg_high_quality' =>'video/ogg',
'mv_ogg_low_quality' =>'video/ogg'
);
function __construct(&$parent_stream, $initRow=''){
$this->_parent_stream =& $parent_stream;
//no init val.. populate from db
if($this->_parent_stream && $initRow==''){
$this->getStreamFileDB();
}else{
//populate from the initRow obj
if (is_object($initRow))
$initRow = get_object_vars($initRow);
if (is_array($initRow)) {
$this->updateValues($initRow);
}
}
}
function getNameKey(){
return $this->file_desc_msg;
}
function getContentType(){
if(isset($this->msg_content_type_lookup[$this->file_desc_msg])){
return $this->msg_content_type_lookup[$this->file_desc_msg];
}
//default content type?
return 'application/octet-stream';
}
function updateValues($initRow){
foreach ($initRow as $key => $val) {
//make sure the key exist and is not private
if (isset ($this-> $key) && $key[0] != '_') {
$this->$key = $val;
}
}
}
function deleteStreamFileDB(){
global $mvStreamFilesTable;
$dbw = & wfGetDB(DB_WRITE);
$dbw->delete($mvStreamFilesTable, array('id'=>$this->id));
}
function writeStreamFileDB(){
global $mvStreamFilesTable;
$dbw = & wfGetDB(DB_WRITE);
if($this->id==''){
$dbw->insert($mvStreamFilesTable, array(
'stream_id'=>$this->stream_id,
'base_offset'=>$this->base_offset,
'duration'=>$this->duration,
'file_desc_msg'=>$this->file_desc_msg,
'path_type'=>$this->path_type,
'path'=>$this->path
), __METHOD__);
}else{
//update:
$dbw->update($mvStreamFilesTable, array(
'base_offset'=>$this->base_offset,
'duration'=>$this->duration,
'file_desc_msg'=>$this->file_desc_msg,
'path_type'=>$this->path_type,
'path'=>$this->path
), array('id'=>$this->id), __METHOD__);
}
}
function getStreamFileDB($quality=null){
global $mvDefaultVideoQualityKey, $mvStreamFilesTable;
if($quality==null)$quality=$mvDefaultVideoQualityKey;
$dbr = & wfGetDB(DB_READ);
$result = $dbr->select($dbr->tableName($mvStreamFilesTable), array('path'), array (
'stream_id' => $this->_parent_stream->getStreamId(),
'file_desc_msg'=>$quality
));
$row =$dbr->fetchObject($result);
if($row){
$ary = get_object_vars($row);
foreach($ary as $k=>$v){
$this->$k=$v;
}
}
}
//@@todo as mentioned before we should better integrate with medaiWikis commons file system
//returns the local path (if the video file is local) if not return null
function getLocalPath($quality=null){
global $mvLocalVideoLoc,$mvDefaultVideoQualityKey;
if($quality==null)$quality=$mvDefaultVideoQualityKey;
if(!is_dir($mvLocalVideoLoc))return null;
if(!is_file($mvLocalVideoLoc . $this->_parent_stream->getStreamName() ))return null;
//all looks good return:
return $mvLocalVideoLoc . $this->_parent_stream->getStreamName();
}
/*
* returns the path with {sn} replaced with stream name if present
*/
function getPath(){
return $this->path;
//return str_replace('{sn}',$this->_parent_stream->name, $this->path);
}
function getPathType(){
return $this->path_type;
}
function getFullURL(){
//@@todo check on path if local
return $this->getPath();
}
function get_desc(){
return wfMsg( $this->file_desc_msg);
}
}
?>
|
