function ParseAfrtBox($afrt, $pos)
{
$fragTable = array();
$version = ReadByte($afrt, $pos);
$flags = ReadInt24($afrt, $pos + 1);
$timescale = ReadInt32($afrt, $pos + 4);
$qualityEntryCount = ReadByte($afrt, $pos + 8);
$pos += 9;
for ($i = 0; $i < $qualityEntryCount; $i++) {
$qualitySegmentUrlModifiers[$i] = ReadString($afrt, $pos);
}
$fragEntries = ReadInt32($afrt, $pos);
$pos += 4;
LogDebug(sprintf(" %-12s%-16s%-16s%-16s", "Number", "Timestamp", "Duration", "Discontinuity"));
for ($i = 0; $i < $fragEntries; $i++) {
$firstFragment = ReadInt32($afrt, $pos);
$fragEntry =& $fragTable[$firstFragment];
$fragEntry['firstFragment'] = $firstFragment;
$fragEntry['firstFragmentTimestamp'] = ReadInt64($afrt, $pos + 4);
$fragEntry['fragmentDuration'] = ReadInt32($afrt, $pos + 12);
$fragEntry['discontinuityIndicator'] = "";
$pos += 16;
if ($fragEntry['fragmentDuration'] == 0) {
$fragEntry['discontinuityIndicator'] = ReadByte($afrt, $pos++);
}
}
unset($fragEntry);
foreach ($fragTable as $fragEntry) {
LogDebug(sprintf(" %-12s%-16s%-16s%-16s", $fragEntry['firstFragment'], $fragEntry['firstFragmentTimestamp'], $fragEntry['fragmentDuration'], $fragEntry['discontinuityIndicator']));
}
LogDebug("");
return $fragTable;
}
function ParseAfrtBox($afrt, $pos)
{
$version = ReadByte($afrt, $pos);
$flags = ReadInt24($afrt, $pos + 1);
$timescale = ReadInt32($afrt, $pos + 4);
$qualityEntryCount = ReadByte($afrt, $pos + 8);
$pos += 9;
for ($i = 0; $i < $qualityEntryCount; $i++) {
$qualitySegmentUrlModifiers[$i] = ReadString($afrt, $pos);
}
$fragEntries = ReadInt32($afrt, $pos);
$pos += 4;
LogDebug(sprintf("%s:\n\n %-8s%-16s%-16s%-16s", "Fragment Entries", "Number", "Timestamp", "Duration", "Discontinuity"));
for ($i = 0; $i < $fragEntries; $i++) {
$firstFragment = ReadInt32($afrt, $pos);
$fragEntry =& $this->fragTable[$firstFragment];
$fragEntry['firstFragment'] = $firstFragment;
$fragEntry['firstFragmentTimestamp'] = ReadInt64($afrt, $pos + 4);
$fragEntry['fragmentDuration'] = ReadInt32($afrt, $pos + 12);
$fragEntry['discontinuityIndicator'] = "";
$pos += 16;
if ($fragEntry['fragmentDuration'] == 0) {
$fragEntry['discontinuityIndicator'] = ReadByte($afrt, $pos++);
}
}
unset($fragEntry);
foreach ($this->fragTable as $fragEntry) {
LogDebug(sprintf(" %-8s%-16s%-16s%-16s", $fragEntry['firstFragment'], $fragEntry['firstFragmentTimestamp'], $fragEntry['fragmentDuration'], $fragEntry['discontinuityIndicator']));
}
LogDebug("");
// Use fragment table in case of single segment
if (count($this->segTable) == 1) {
$firstFragment = reset($this->fragTable);
$lastFragment = end($this->fragTable);
if ($this->fragStart === false) {
if ($this->live) {
$this->fragStart = $lastFragment['firstFragment'] - 2;
} else {
$this->fragStart = $firstFragment['firstFragment'] - 1;
}
if ($this->fragStart < 0) {
$this->fragStart = 0;
}
}
if ($this->fragCount > 0) {
$this->fragCount += $firstFragment['firstFragment'] - 1;
}
if ($this->fragCount < $lastFragment['firstFragment']) {
$this->fragCount = $lastFragment['firstFragment'];
}
}
}
