private function parseEBML(&$info)
{
// http://www.matroska.org/technical/specs/index.html#EBMLBasics
$this->current_offset = $info['avdataoffset'];
while ($this->getEBMLelement($top_element, $info['avdataend'])) {
switch ($top_element['id']) {
case self::ID_EBML:
$info['matroska']['header']['offset'] = $top_element['offset'];
$info['matroska']['header']['length'] = $top_element['length'];
while ($this->getEBMLelement($element_data, $top_element['end'], true)) {
switch ($element_data['id']) {
case self::ID_EBMLVERSION:
case self::ID_EBMLREADVERSION:
case self::ID_EBMLMAXIDLENGTH:
case self::ID_EBMLMAXSIZELENGTH:
case self::ID_DOCTYPEVERSION:
case self::ID_DOCTYPEREADVERSION:
$element_data['data'] = Utils::BigEndian2Int($element_data['data']);
break;
case self::ID_DOCTYPE:
$element_data['data'] = Utils::trimNullByte($element_data['data']);
$info['matroska']['doctype'] = $element_data['data'];
$info['fileformat'] = $element_data['data'];
break;
default:
$this->unhandledElement('header', __LINE__, $element_data);
}
unset($element_data['offset'], $element_data['end']);
$info['matroska']['header']['elements'][] = $element_data;
}
break;
case self::ID_SEGMENT:
$info['matroska']['segment'][0]['offset'] = $top_element['offset'];
$info['matroska']['segment'][0]['length'] = $top_element['length'];
while ($this->getEBMLelement($element_data, $top_element['end'])) {
if ($element_data['id'] != self::ID_CLUSTER || !self::$hide_clusters) {
// collect clusters only if required
$info['matroska']['segments'][] = $element_data;
}
switch ($element_data['id']) {
case self::ID_SEEKHEAD:
// Contains the position of other level 1 elements.
while ($this->getEBMLelement($seek_entry, $element_data['end'])) {
switch ($seek_entry['id']) {
case self::ID_SEEK:
// Contains a single seek entry to an EBML element
while ($this->getEBMLelement($sub_seek_entry, $seek_entry['end'], true)) {
switch ($sub_seek_entry['id']) {
case self::ID_SEEKID:
$seek_entry['target_id'] = self::EBML2Int($sub_seek_entry['data']);
$seek_entry['target_name'] = self::EBMLidName($seek_entry['target_id']);
break;
case self::ID_SEEKPOSITION:
$seek_entry['target_offset'] = $element_data['offset'] + Utils::BigEndian2Int($sub_seek_entry['data']);
break;
default:
$this->unhandledElement('seekhead.seek', __LINE__, $sub_seek_entry);
}
}
if ($seek_entry['target_id'] != self::ID_CLUSTER || !self::$hide_clusters) {
// collect clusters only if required
$info['matroska']['seek'][] = $seek_entry;
}
break;
default:
$this->unhandledElement('seekhead', __LINE__, $seek_entry);
}
}
break;
case self::ID_TRACKS:
// A top-level block of information with many tracks described.
$info['matroska']['tracks'] = $element_data;
while ($this->getEBMLelement($track_entry, $element_data['end'])) {
switch ($track_entry['id']) {
case self::ID_TRACKENTRY:
//subelements: Describes a track with all elements.
while ($this->getEBMLelement($subelement, $track_entry['end'], [self::ID_VIDEO, self::ID_AUDIO, self::ID_CONTENTENCODINGS, self::ID_CODECPRIVATE])) {
switch ($subelement['id']) {
case self::ID_TRACKNUMBER:
case self::ID_TRACKUID:
case self::ID_TRACKTYPE:
case self::ID_MINCACHE:
case self::ID_MAXCACHE:
case self::ID_MAXBLOCKADDITIONID:
case self::ID_DEFAULTDURATION:
// nanoseconds per frame
$track_entry[$subelement['id_name']] = Utils::BigEndian2Int($subelement['data']);
break;
case self::ID_TRACKTIMECODESCALE:
$track_entry[$subelement['id_name']] = Utils::BigEndian2Float($subelement['data']);
break;
case self::ID_CODECID:
case self::ID_LANGUAGE:
case self::ID_NAME:
case self::ID_CODECNAME:
$track_entry[$subelement['id_name']] = Utils::trimNullByte($subelement['data']);
break;
case self::ID_CODECPRIVATE:
$track_entry[$subelement['id_name']] = $this->readEBMLelementData($subelement['length'], true);
break;
case self::ID_FLAGENABLED:
case self::ID_FLAGDEFAULT:
case self::ID_FLAGFORCED:
case self::ID_FLAGLACING:
case self::ID_CODECDECODEALL:
$track_entry[$subelement['id_name']] = (bool) Utils::BigEndian2Int($subelement['data']);
break;
case self::ID_VIDEO:
while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) {
switch ($sub_subelement['id']) {
case self::ID_PIXELWIDTH:
case self::ID_PIXELHEIGHT:
case self::ID_PIXELCROPBOTTOM:
case self::ID_PIXELCROPTOP:
case self::ID_PIXELCROPLEFT:
case self::ID_PIXELCROPRIGHT:
case self::ID_DISPLAYWIDTH:
case self::ID_DISPLAYHEIGHT:
case self::ID_DISPLAYUNIT:
case self::ID_ASPECTRATIOTYPE:
case self::ID_STEREOMODE:
case self::ID_OLDSTEREOMODE:
$track_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_FLAGINTERLACED:
$track_entry[$sub_subelement['id_name']] = (bool) Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_GAMMAVALUE:
$track_entry[$sub_subelement['id_name']] = Utils::BigEndian2Float($sub_subelement['data']);
break;
case self::ID_COLOURSPACE:
$track_entry[$sub_subelement['id_name']] = Utils::trimNullByte($sub_subelement['data']);
break;
default:
$this->unhandledElement('track.video', __LINE__, $sub_subelement);
}
}
break;
case self::ID_AUDIO:
while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) {
switch ($sub_subelement['id']) {
case self::ID_CHANNELS:
case self::ID_BITDEPTH:
$track_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_SAMPLINGFREQUENCY:
case self::ID_OUTPUTSAMPLINGFREQUENCY:
$track_entry[$sub_subelement['id_name']] = Utils::BigEndian2Float($sub_subelement['data']);
break;
case self::ID_CHANNELPOSITIONS:
$track_entry[$sub_subelement['id_name']] = Utils::trimNullByte($sub_subelement['data']);
break;
default:
$this->unhandledElement('track.audio', __LINE__, $sub_subelement);
}
}
break;
case self::ID_CONTENTENCODINGS:
while ($this->getEBMLelement($sub_subelement, $subelement['end'])) {
switch ($sub_subelement['id']) {
case self::ID_CONTENTENCODING:
while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], [self::ID_CONTENTCOMPRESSION, self::ID_CONTENTENCRYPTION])) {
switch ($sub_sub_subelement['id']) {
case self::ID_CONTENTENCODINGORDER:
case self::ID_CONTENTENCODINGSCOPE:
case self::ID_CONTENTENCODINGTYPE:
$track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_subelement['data']);
break;
case self::ID_CONTENTCOMPRESSION:
while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) {
switch ($sub_sub_sub_subelement['id']) {
case self::ID_CONTENTCOMPALGO:
$track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_sub_subelement['data']);
break;
case self::ID_CONTENTCOMPSETTINGS:
$track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data'];
break;
default:
$this->unhandledElement('track.contentencodings.contentencoding.contentcompression', __LINE__, $sub_sub_sub_subelement);
}
}
break;
case self::ID_CONTENTENCRYPTION:
while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) {
switch ($sub_sub_sub_subelement['id']) {
case self::ID_CONTENTENCALGO:
case self::ID_CONTENTSIGALGO:
case self::ID_CONTENTSIGHASHALGO:
$track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_sub_subelement['data']);
break;
case self::ID_CONTENTENCKEYID:
case self::ID_CONTENTSIGNATURE:
case self::ID_CONTENTSIGKEYID:
$track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data'];
break;
default:
$this->unhandledElement('track.contentencodings.contentencoding.contentcompression', __LINE__, $sub_sub_sub_subelement);
}
}
break;
default:
$this->unhandledElement('track.contentencodings.contentencoding', __LINE__, $sub_sub_subelement);
}
}
break;
default:
$this->unhandledElement('track.contentencodings', __LINE__, $sub_subelement);
}
}
break;
default:
$this->unhandledElement('track', __LINE__, $subelement);
}
}
$info['matroska']['tracks']['tracks'][] = $track_entry;
break;
default:
$this->unhandledElement('tracks', __LINE__, $track_entry);
}
}
break;
case self::ID_INFO:
// Contains miscellaneous general information and statistics on the file.
$info_entry = [];
while ($this->getEBMLelement($subelement, $element_data['end'], true)) {
switch ($subelement['id']) {
case self::ID_TIMECODESCALE:
$info_entry[$subelement['id_name']] = Utils::BigEndian2Int($subelement['data']);
break;
case self::ID_DURATION:
$info_entry[$subelement['id_name']] = Utils::BigEndian2Float($subelement['data']);
break;
case self::ID_DATEUTC:
$info_entry[$subelement['id_name']] = Utils::BigEndian2Int($subelement['data']);
$info_entry[$subelement['id_name'] . '_unix'] = self::EBMLdate2unix($info_entry[$subelement['id_name']]);
break;
case self::ID_SEGMENTUID:
case self::ID_PREVUID:
case self::ID_NEXTUID:
$info_entry[$subelement['id_name']] = Utils::trimNullByte($subelement['data']);
break;
case self::ID_SEGMENTFAMILY:
$info_entry[$subelement['id_name']][] = Utils::trimNullByte($subelement['data']);
break;
case self::ID_SEGMENTFILENAME:
case self::ID_PREVFILENAME:
case self::ID_NEXTFILENAME:
case self::ID_TITLE:
case self::ID_MUXINGAPP:
case self::ID_WRITINGAPP:
$info_entry[$subelement['id_name']] = Utils::trimNullByte($subelement['data']);
$info['matroska']['comments'][strtolower($subelement['id_name'])][] = $info_entry[$subelement['id_name']];
break;
case self::ID_CHAPTERTRANSLATE:
$chaptertranslate_entry = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) {
switch ($sub_subelement['id']) {
case self::ID_CHAPTERTRANSLATEEDITIONUID:
$chaptertranslate_entry[$sub_subelement['id_name']][] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_CHAPTERTRANSLATECODEC:
$chaptertranslate_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_CHAPTERTRANSLATEID:
$chaptertranslate_entry[$sub_subelement['id_name']] = Utils::trimNullByte($sub_subelement['data']);
break;
default:
$this->unhandledElement('info.chaptertranslate', __LINE__, $sub_subelement);
}
}
$info_entry[$subelement['id_name']] = $chaptertranslate_entry;
break;
default:
$this->unhandledElement('info', __LINE__, $subelement);
}
}
$info['matroska']['info'][] = $info_entry;
break;
case self::ID_CUES:
// A top-level element to speed seeking access. All entries are local to the segment. Should be mandatory for non "live" streams.
if (self::$hide_clusters) {
// do not parse cues if hide clusters is "ON" till they point to clusters anyway
$this->current_offset = $element_data['end'];
break;
}
$cues_entry = [];
while ($this->getEBMLelement($subelement, $element_data['end'])) {
switch ($subelement['id']) {
case self::ID_CUEPOINT:
$cuepoint_entry = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], [self::ID_CUETRACKPOSITIONS])) {
switch ($sub_subelement['id']) {
case self::ID_CUETRACKPOSITIONS:
$cuetrackpositions_entry = [];
while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], true)) {
switch ($sub_sub_subelement['id']) {
case self::ID_CUETRACK:
case self::ID_CUECLUSTERPOSITION:
case self::ID_CUEBLOCKNUMBER:
case self::ID_CUECODECSTATE:
$cuetrackpositions_entry[$sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_subelement['data']);
break;
default:
$this->unhandledElement('cues.cuepoint.cuetrackpositions', __LINE__, $sub_sub_subelement);
}
}
$cuepoint_entry[$sub_subelement['id_name']][] = $cuetrackpositions_entry;
break;
case self::ID_CUETIME:
$cuepoint_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
default:
$this->unhandledElement('cues.cuepoint', __LINE__, $sub_subelement);
}
}
$cues_entry[] = $cuepoint_entry;
break;
default:
$this->unhandledElement('cues', __LINE__, $subelement);
}
}
$info['matroska']['cues'] = $cues_entry;
break;
case self::ID_TAGS:
// Element containing elements specific to Tracks/Chapters.
$tags_entry = [];
while ($this->getEBMLelement($subelement, $element_data['end'], false)) {
switch ($subelement['id']) {
case self::ID_TAG:
$tag_entry = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], false)) {
switch ($sub_subelement['id']) {
case self::ID_TARGETS:
$targets_entry = [];
while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], true)) {
switch ($sub_sub_subelement['id']) {
case self::ID_TARGETTYPEVALUE:
$targets_entry[$sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_subelement['data']);
$targets_entry[strtolower($sub_sub_subelement['id_name']) . '_long'] = self::TargetTypeValue($targets_entry[$sub_sub_subelement['id_name']]);
break;
case self::ID_TARGETTYPE:
$targets_entry[$sub_sub_subelement['id_name']] = $sub_sub_subelement['data'];
break;
case self::ID_TAGTRACKUID:
case self::ID_TAGEDITIONUID:
case self::ID_TAGCHAPTERUID:
case self::ID_TAGATTACHMENTUID:
$targets_entry[$sub_sub_subelement['id_name']][] = Utils::BigEndian2Int($sub_sub_subelement['data']);
break;
default:
$this->unhandledElement('tags.tag.targets', __LINE__, $sub_sub_subelement);
}
}
$tag_entry[$sub_subelement['id_name']] = $targets_entry;
break;
case self::ID_SIMPLETAG:
$tag_entry[$sub_subelement['id_name']][] = $this->HandleEMBLSimpleTag($sub_subelement['end']);
break;
default:
$this->unhandledElement('tags.tag', __LINE__, $sub_subelement);
}
}
$tags_entry[] = $tag_entry;
break;
default:
$this->unhandledElement('tags', __LINE__, $subelement);
}
}
$info['matroska']['tags'] = $tags_entry;
break;
case self::ID_ATTACHMENTS:
// Contain attached files.
while ($this->getEBMLelement($subelement, $element_data['end'])) {
switch ($subelement['id']) {
case self::ID_ATTACHEDFILE:
$attachedfile_entry = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], [self::ID_FILEDATA])) {
switch ($sub_subelement['id']) {
case self::ID_FILEDESCRIPTION:
case self::ID_FILENAME:
case self::ID_FILEMIMETYPE:
$attachedfile_entry[$sub_subelement['id_name']] = $sub_subelement['data'];
break;
case self::ID_FILEDATA:
$attachedfile_entry['data_offset'] = $this->current_offset;
$attachedfile_entry['data_length'] = $sub_subelement['length'];
$attachedfile_entry[$sub_subelement['id_name']] = $this->saveAttachment($attachedfile_entry['FileName'], $attachedfile_entry['data_offset'], $attachedfile_entry['data_length']);
$this->current_offset = $sub_subelement['end'];
break;
case self::ID_FILEUID:
$attachedfile_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
default:
$this->unhandledElement('attachments.attachedfile', __LINE__, $sub_subelement);
}
}
$info['matroska']['attachments'][] = $attachedfile_entry;
break;
default:
$this->unhandledElement('attachments', __LINE__, $subelement);
}
}
break;
case self::ID_CHAPTERS:
while ($this->getEBMLelement($subelement, $element_data['end'])) {
switch ($subelement['id']) {
case self::ID_EDITIONENTRY:
$editionentry_entry = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], [self::ID_CHAPTERATOM])) {
switch ($sub_subelement['id']) {
case self::ID_EDITIONUID:
$editionentry_entry[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_EDITIONFLAGHIDDEN:
case self::ID_EDITIONFLAGDEFAULT:
case self::ID_EDITIONFLAGORDERED:
$editionentry_entry[$sub_subelement['id_name']] = (bool) Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_CHAPTERATOM:
$chapteratom_entry = [];
while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], [self::ID_CHAPTERTRACK, self::ID_CHAPTERDISPLAY])) {
switch ($sub_sub_subelement['id']) {
case self::ID_CHAPTERSEGMENTUID:
case self::ID_CHAPTERSEGMENTEDITIONUID:
$chapteratom_entry[$sub_sub_subelement['id_name']] = $sub_sub_subelement['data'];
break;
case self::ID_CHAPTERFLAGENABLED:
case self::ID_CHAPTERFLAGHIDDEN:
$chapteratom_entry[$sub_sub_subelement['id_name']] = (bool) Utils::BigEndian2Int($sub_sub_subelement['data']);
break;
case self::ID_CHAPTERUID:
case self::ID_CHAPTERTIMESTART:
case self::ID_CHAPTERTIMEEND:
$chapteratom_entry[$sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_subelement['data']);
break;
case self::ID_CHAPTERTRACK:
$chaptertrack_entry = [];
while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) {
switch ($sub_sub_sub_subelement['id']) {
case self::ID_CHAPTERTRACKNUMBER:
$chaptertrack_entry[$sub_sub_sub_subelement['id_name']] = Utils::BigEndian2Int($sub_sub_sub_subelement['data']);
break;
default:
$this->unhandledElement('chapters.editionentry.chapteratom.chaptertrack', __LINE__, $sub_sub_sub_subelement);
}
}
$chapteratom_entry[$sub_sub_subelement['id_name']][] = $chaptertrack_entry;
break;
case self::ID_CHAPTERDISPLAY:
$chapterdisplay_entry = [];
while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) {
switch ($sub_sub_sub_subelement['id']) {
case self::ID_CHAPSTRING:
case self::ID_CHAPLANGUAGE:
case self::ID_CHAPCOUNTRY:
$chapterdisplay_entry[$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data'];
break;
default:
$this->unhandledElement('chapters.editionentry.chapteratom.chapterdisplay', __LINE__, $sub_sub_sub_subelement);
}
}
$chapteratom_entry[$sub_sub_subelement['id_name']][] = $chapterdisplay_entry;
break;
default:
$this->unhandledElement('chapters.editionentry.chapteratom', __LINE__, $sub_sub_subelement);
}
}
$editionentry_entry[$sub_subelement['id_name']][] = $chapteratom_entry;
break;
default:
$this->unhandledElement('chapters.editionentry', __LINE__, $sub_subelement);
}
}
$info['matroska']['chapters'][] = $editionentry_entry;
break;
default:
$this->unhandledElement('chapters', __LINE__, $subelement);
}
}
break;
case self::ID_CLUSTER:
// The lower level element containing the (monolithic) Block structure.
$cluster_entry = [];
while ($this->getEBMLelement($subelement, $element_data['end'], [self::ID_CLUSTERSILENTTRACKS, self::ID_CLUSTERBLOCKGROUP, self::ID_CLUSTERSIMPLEBLOCK])) {
switch ($subelement['id']) {
case self::ID_CLUSTERTIMECODE:
case self::ID_CLUSTERPOSITION:
case self::ID_CLUSTERPREVSIZE:
$cluster_entry[$subelement['id_name']] = Utils::BigEndian2Int($subelement['data']);
break;
case self::ID_CLUSTERSILENTTRACKS:
$cluster_silent_tracks = [];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) {
switch ($sub_subelement['id']) {
case self::ID_CLUSTERSILENTTRACKNUMBER:
$cluster_silent_tracks[] = Utils::BigEndian2Int($sub_subelement['data']);
break;
default:
$this->unhandledElement('cluster.silenttracks', __LINE__, $sub_subelement);
}
}
$cluster_entry[$subelement['id_name']][] = $cluster_silent_tracks;
break;
case self::ID_CLUSTERBLOCKGROUP:
$cluster_block_group = ['offset' => $this->current_offset];
while ($this->getEBMLelement($sub_subelement, $subelement['end'], [self::ID_CLUSTERBLOCK])) {
switch ($sub_subelement['id']) {
case self::ID_CLUSTERBLOCK:
$cluster_block_group[$sub_subelement['id_name']] = $this->HandleEMBLClusterBlock($sub_subelement, self::ID_CLUSTERBLOCK, $info);
break;
case self::ID_CLUSTERREFERENCEPRIORITY:
// unsigned-int
// unsigned-int
case self::ID_CLUSTERBLOCKDURATION:
// unsigned-int
$cluster_block_group[$sub_subelement['id_name']] = Utils::BigEndian2Int($sub_subelement['data']);
break;
case self::ID_CLUSTERREFERENCEBLOCK:
// signed-int
$cluster_block_group[$sub_subelement['id_name']][] = Utils::BigEndian2Int($sub_subelement['data'], false, true);
break;
case self::ID_CLUSTERCODECSTATE:
$cluster_block_group[$sub_subelement['id_name']] = Utils::trimNullByte($sub_subelement['data']);
break;
default:
$this->unhandledElement('clusters.blockgroup', __LINE__, $sub_subelement);
}
}
$cluster_entry[$subelement['id_name']][] = $cluster_block_group;
break;
case self::ID_CLUSTERSIMPLEBLOCK:
$cluster_entry[$subelement['id_name']][] = $this->HandleEMBLClusterBlock($subelement, self::ID_CLUSTERSIMPLEBLOCK, $info);
break;
default:
$this->unhandledElement('cluster', __LINE__, $subelement);
}
$this->current_offset = $subelement['end'];
}
if (!self::$hide_clusters) {
$info['matroska']['cluster'][] = $cluster_entry;
}
// check to see if all the data we need exists already, if so, break out of the loop
if (!self::$parse_whole_file) {
if (isset($info['matroska']['info']) && is_array($info['matroska']['info'])) {
if (isset($info['matroska']['tracks']['tracks']) && is_array($info['matroska']['tracks']['tracks'])) {
if (count($info['matroska']['track_data_offsets']) == count($info['matroska']['tracks']['tracks'])) {
return;
}
}
}
}
break;
default:
$this->unhandledElement('segment', __LINE__, $element_data);
}
}
break;
default:
$this->unhandledElement('root', __LINE__, $top_element);
}
}
}
