get_start();
$end = $interval->get_end();
}
if( $_GET['id'] ) {
$id = $_GET['id'];
$row = db_fetch_object(db_query("SELECT `start`, `end` FROM {acidfree_cmml_clips} WHERE `nid`={$node->nid} AND id='$id';"));
$start = $row->start;
if( $row->end && $row->end != 0.0 ) {
$end = $row->end;
}
}
$anx = new AnnodexWriter();
$anx->import($media_file, NULL, NULL, $start, $end);
output_annodex_headers( $anx );
foreach( make_clips($node) as $start=>$clip ) {
$anx->insert_cmml( $start, $clip );
}
while( $buffer = $anx->write_output() ) {
echo $buffer;
}
$anx->close();
return;
}
/* Serve raw Ogg Theora */
function output_ogg( $node, $output_headers=TRUE ) {
$media_file = realpath(_acidfree_get_large_path( $node, true ));
if( $output_headers ) {
header("Content-Type: application/ogg");
header("");
}
readfile( $media_file );
}
/* Serve cmml */
function output_cmml( $node, $output_headers=TRUE ) {
$media_file = realpath(_acidfree_get_large_path( $node, true ));
output_cmml_headers();
echo '';
echo '';
echo make_head( $node );
$clips = make_clips( $node );
foreach( $clips as $clip ) {
echo $clip;
}
echo '';
return;
}
/* Make a cmml head element */
function make_head( $node ) {
$head .= "";
$head .= "";
$head .= $node->title;
$head .= "";
$head .= "";
return $head;
}
/* Create a cmml clip. */
/*FIXME add everything to clip, not just id and desc */
function make_clip( $id, $start, $description=NULL, $img=NULL ) {
$clip .= "set_start( $start );
$clip .= " start=\"{$npt->toString(FALSE)}\"";
}
$clip .= ">";
if( $description ) {
$clip .= "$description";
}
if( $img ) {
$clip .= "![](\"$img\"/)
";
}
$clip .= "";
return $clip;
}
/* Return an array of cmml clips from info in the database */
function make_clips( $node ) {
$result = db_query("SELECT * FROM {acidfree_cmml_clips} WHERE nid={$node->nid} ORDER BY `start`;");
$clips = array();
while( $row = db_fetch_object($result) ) {
$clip = make_clip( $row->id, $row->start, $row->desc, $row->img );
$clips[(string) $row->start] = $clip;
}
return $clips;
}
/* Output the appropriate headers for when cmml is being served. */
function output_cmml_headers() {
header("Content-Type: text/x-cmml");
return;
}
/* Output the appropriate headers for when annodex is being served. */
function output_annodex_headers( AnnodexWriter $anx ) {
header("Content-Type: application/x-annodex");
header("X-Content-Bitrate-Average: {$anx->get_bitrate()}");
header("X-Content_Duration: {$anx->get_duration()}");
return;
}
/* Examine the Accept field of the request and determine which of ogg, annodex
* or cmml is prioritised. The default is annodex.
*/
function get_accept_type() {
foreach( explode(",",$_SERVER['HTTP_ACCEPT']) as $mime) {
$tuple = explode(";",$mime);
if( trim($tuple[0])=="text/x-cmml" ) {
/* Found cmml. */
if( count($tuple) == 2 ) {
$cmml_priority = trim($type_tuple[1]);
} else {
$cmml_priority = 1;
}
} else if ( trim($tuple[0])=="application/x-annodex" ) {
/* Found annodex. */
if( count($tuple) == 2 ) {
$anx_priority = trim($tuple[1]);
} else {
$anx_priority = 1;
}
} else if ( trim($tuple[0])=="application/ogg" ) {
/* Found ogg. */
if( count($tuple) == 2 ) {
$ogg_priority = trim($tuple[1]);
} else {
$ogg_priority = 1;
}
}
}
if( $ogg_priority > $anx_priority && $ogg_priority > $cmml_priority ) {
return "ogg";
} else if ( $cmml_priority > $anx_priority ) {
return "cmml";
} else {
/* If it's a draw, choose annodex */
return "annodex";
}
}