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<?php
/**
* MP4 handler
*/
class Mp4Handler extends ID3Handler {
/**
* @param $path string
* @return array
*/
protected function getID3( $path ) {
$id3 = parent::getID3( $path );
// Unset some parts of id3 that are too detailed and matroska specific:
unset( $id3['quicktime'] );
return $id3;
}
/**
* Get the "media size"
* @param $file File
* @param $path string
* @param $metadata bool
* @return array|bool
*/
function getImageSize( $file, $path, $metadata = false ) {
// Just return the size of the first video stream
if ( $metadata === false ) {
$metadata = $file->getMetadata();
}
$metadata = $this->unpackMetadata( $metadata );
if ( isset( $metadata['error'] ) ) {
return false;
}
if( isset( $metadata['video']['resolution_x'])
&&
isset( $metadata['video']['resolution_y'])
){
return array (
$metadata['video']['resolution_x'],
$metadata['video']['resolution_y']
);
}
return array( false, false );
}
/**
* @param $image
* @return string
*/
function getMetadataType( $image ) {
return 'mp4';
}
/**
* @param $file File
*/
function getWebType( $file ) {
/**
* h.264 profile types:
H.264 Simple baseline profile video (main and extended video compatible) level 3 and Low-Complexity AAC audio in MP4 container:
type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'
H.264 Extended profile video (baseline-compatible) level 3 and Low-Complexity AAC audio in MP4 container:
type='video/mp4; codecs="avc1.58A01E, mp4a.40.2"'
H.264 Main profile video level 3 and Low-Complexity AAC audio in MP4 container
type='video/mp4; codecs="avc1.4D401E, mp4a.40.2"'
H.264 ‘High’ profile video (incompatible with main, baseline, or extended profiles) level 3 and Low-Complexity AAC audio in MP4 container
type='video/mp4; codecs="avc1.64001E, mp4a.40.2"'
*/
// all h.264 encodes are currently simple profile
return 'video/mp4; codecs="avc1.42E01E, mp4a.40.2"';
}
/**
* @param $file File
* @return array|bool
*/
function getStreamTypes( $file ) {
$streamTypes = array();
$metadata = self::unpackMetadata( $file->getMetadata() );
if ( !$metadata || isset( $metadata['error'] ) ) {
return false;
}
if( isset( $metadata['audio'] ) && $metadata['audio']['dataformat'] == 'mp4' ){
if( isset( $metadata['audio']['codec'] )
&&
strpos( $metadata['audio']['codec'] , 'AAC' ) !== false
){
$streamTypes[] = 'AAC';
} else {
$streamTypes[] = $metadata['audio']['codec'];
}
}
// id3 gives 'V_VP8' for what we call VP8
if( $metadata['video']['dataformat'] == 'quicktime' ){
$streamTypes[] = 'h.264';
}
return $streamTypes;
}
/**
* @param $file File
* @return String
*/
function getShortDesc( $file ) {
$streamTypes = $this->getStreamTypes( $file );
if ( !$streamTypes ) {
return parent::getShortDesc( $file );
}
return wfMessage( 'timedmedia-mp4-short-video', implode( '/', $streamTypes )
)->timeperiodParams(
$this->getLength( $file )
)->text();
}
/**
* @param $file File
* @return String
*/
function getLongDesc( $file ) {
$streamTypes = $this->getStreamTypes( $file );
if ( !$streamTypes ) {
return parent::getLongDesc( $file );
}
return wfMessage('timedmedia-mp4-long-video',
implode( '/', $streamTypes )
)->timeperiodParams(
$this->getLength( $file )
)->bitrateParams(
$this->getBitRate( $file )
)->numParams(
$file->getWidth(),
$file->getHeight()
)->text();
}
}
|
