Edit File by line

public function peekByte() {

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$pos = $this->pos;

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$val = $this->readByte();

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$this->pos = $pos;

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return $val;

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}

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/**

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* @return int

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public function peekInt() {

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$pos = $this->pos;

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$val = $this->readInt();

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$this->pos = $pos;

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return $val;

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}

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/**

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* @return int

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public function peekLong() {

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$pos = $this->pos;

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$val = $this->readLong();

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$this->pos = $pos;

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return $val;

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}

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/**

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* @return float|false

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public function peekDouble() {

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$pos = $this->pos;

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$val = $this->readDouble();

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$this->pos = $pos;

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return $val;

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}

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/**

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* @return string

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public function peekUTF() {

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$pos = $this->pos;

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$val = $this->readUTF();

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$this->pos = $pos;

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return $val;

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}

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/**

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* @return string

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public function peekLongUTF() {

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$pos = $this->pos;

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$val = $this->readLongUTF();

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$this->pos = $pos;

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return $val;

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}

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}

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class AMFReader

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{

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/**

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* @var AMFStream

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public $stream;

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/**

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* @param AMFStream $stream

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public function __construct(AMFStream $stream) {

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$this->stream = $stream;

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}

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/**

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* @return mixed

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public function readData() {

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$value = null;

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$type = $this->stream->readByte();

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switch ($type) {

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// Double

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case 0:

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$value = $this->readDouble();

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break;

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// Boolean

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case 1:

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$value = $this->readBoolean();

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break;

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// String

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case 2:

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$value = $this->readString();

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break;

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// Object

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case 3:

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$value = $this->readObject();

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break;

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// null

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case 6:

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return null;

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// Mixed array

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case 8:

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$value = $this->readMixedArray();

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break;

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// Array

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case 10:

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$value = $this->readArray();

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break;

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// Date

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case 11:

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$value = $this->readDate();

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break;

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// Long string

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case 13:

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$value = $this->readLongString();

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break;

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// XML (handled as string)

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case 15:

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$value = $this->readXML();

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break;

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// Typed object (handled as object)

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case 16:

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$value = $this->readTypedObject();

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break;

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// Long string

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default:

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$value = '(unknown or unsupported data type)';

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break;

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}

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return $value;

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}

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/**

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* @return float|false

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public function readDouble() {

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return $this->stream->readDouble();

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}

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/**

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* @return bool

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public function readBoolean() {

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return $this->stream->readByte() == 1;

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}

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/**

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* @return string

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public function readString() {

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return $this->stream->readUTF();

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}

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/**

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* @return array

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public function readObject() {

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// Get highest numerical index - ignored

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// $highestIndex = $this->stream->readLong();

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$data = array();

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$key = null;

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while ($key = $this->stream->readUTF()) {

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$data[$key] = $this->readData();

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}

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// Mixed array record ends with empty string (0x00 0x00) and 0x09

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if (($key == '') && ($this->stream->peekByte() == 0x09)) {

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// Consume byte

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$this->stream->readByte();

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}

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return $data;

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}

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/**

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* @return array

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public function readMixedArray() {

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// Get highest numerical index - ignored

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$highestIndex = $this->stream->readLong();

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$data = array();

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$key = null;

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while ($key = $this->stream->readUTF()) {

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if (is_numeric($key)) {

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$key = (int) $key;

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}

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$data[$key] = $this->readData();

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}

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// Mixed array record ends with empty string (0x00 0x00) and 0x09

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if (($key == '') && ($this->stream->peekByte() == 0x09)) {

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// Consume byte

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$this->stream->readByte();

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}

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return $data;

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}

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/**

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* @return array

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public function readArray() {

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$length = $this->stream->readLong();

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$data = array();

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for ($i = 0; $i < $length; $i++) {

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$data[] = $this->readData();

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}

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return $data;

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}

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/**

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* @return float|false

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public function readDate() {

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$timestamp = $this->stream->readDouble();

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$timezone = $this->stream->readInt();

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return $timestamp;

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}

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/**

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* @return string

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public function readLongString() {

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return $this->stream->readLongUTF();

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}

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/**

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* @return string

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public function readXML() {

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return $this->stream->readLongUTF();

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}

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[746] Fix | Delete

/**

[747] Fix | Delete

* @return array

[748] Fix | Delete

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public function readTypedObject() {

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$className = $this->stream->readUTF();

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return $this->readObject();

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}

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}

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class AVCSequenceParameterSetReader

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{

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/**

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* @var string

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public $sps;

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public $start = 0;

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public $currentBytes = 0;

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public $currentBits = 0;

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[765] Fix | Delete

/**

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* @var int

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public $width;

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/**

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* @var int

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[773] Fix | Delete

public $height;

[774] Fix | Delete

[775] Fix | Delete

/**

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* @param string $sps

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public function __construct($sps) {

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$this->sps = $sps;

[780] Fix | Delete

}

[781] Fix | Delete

[782] Fix | Delete

public function readData() {

[783] Fix | Delete

$this->skipBits(8);

[784] Fix | Delete

$this->skipBits(8);

[785] Fix | Delete

$profile = $this->getBits(8); // read profile

[786] Fix | Delete

if ($profile > 0) {

[787] Fix | Delete

$this->skipBits(8);

[788] Fix | Delete

$level_idc = $this->getBits(8); // level_idc

[789] Fix | Delete

$this->expGolombUe(); // seq_parameter_set_id // sps

[790] Fix | Delete

$this->expGolombUe(); // log2_max_frame_num_minus4

[791] Fix | Delete

$picOrderType = $this->expGolombUe(); // pic_order_cnt_type

[792] Fix | Delete

if ($picOrderType == 0) {

[793] Fix | Delete

$this->expGolombUe(); // log2_max_pic_order_cnt_lsb_minus4

[794] Fix | Delete

} elseif ($picOrderType == 1) {

[795] Fix | Delete

$this->skipBits(1); // delta_pic_order_always_zero_flag

[796] Fix | Delete

$this->expGolombSe(); // offset_for_non_ref_pic

[797] Fix | Delete

$this->expGolombSe(); // offset_for_top_to_bottom_field

[798] Fix | Delete

$num_ref_frames_in_pic_order_cnt_cycle = $this->expGolombUe(); // num_ref_frames_in_pic_order_cnt_cycle

[799] Fix | Delete

for ($i = 0; $i < $num_ref_frames_in_pic_order_cnt_cycle; $i++) {

[800] Fix | Delete

$this->expGolombSe(); // offset_for_ref_frame[ i ]

[801] Fix | Delete

}

[802] Fix | Delete

}

[803] Fix | Delete

$this->expGolombUe(); // num_ref_frames

[804] Fix | Delete

$this->skipBits(1); // gaps_in_frame_num_value_allowed_flag

[805] Fix | Delete

$pic_width_in_mbs_minus1 = $this->expGolombUe(); // pic_width_in_mbs_minus1

[806] Fix | Delete

$pic_height_in_map_units_minus1 = $this->expGolombUe(); // pic_height_in_map_units_minus1

[807] Fix | Delete

[808] Fix | Delete

$frame_mbs_only_flag = $this->getBits(1); // frame_mbs_only_flag

[809] Fix | Delete

if ($frame_mbs_only_flag == 0) {

[810] Fix | Delete

$this->skipBits(1); // mb_adaptive_frame_field_flag

[811] Fix | Delete

}

[812] Fix | Delete

$this->skipBits(1); // direct_8x8_inference_flag

[813] Fix | Delete

$frame_cropping_flag = $this->getBits(1); // frame_cropping_flag

[814] Fix | Delete

[815] Fix | Delete

$frame_crop_left_offset = 0;

[816] Fix | Delete

$frame_crop_right_offset = 0;

[817] Fix | Delete

$frame_crop_top_offset = 0;

[818] Fix | Delete

$frame_crop_bottom_offset = 0;

[819] Fix | Delete

[820] Fix | Delete

if ($frame_cropping_flag) {

[821] Fix | Delete

$frame_crop_left_offset = $this->expGolombUe(); // frame_crop_left_offset

[822] Fix | Delete

$frame_crop_right_offset = $this->expGolombUe(); // frame_crop_right_offset

[823] Fix | Delete

$frame_crop_top_offset = $this->expGolombUe(); // frame_crop_top_offset

[824] Fix | Delete

$frame_crop_bottom_offset = $this->expGolombUe(); // frame_crop_bottom_offset

[825] Fix | Delete

}

[826] Fix | Delete

$this->skipBits(1); // vui_parameters_present_flag

[827] Fix | Delete

// etc

[828] Fix | Delete

[829] Fix | Delete

$this->width = (($pic_width_in_mbs_minus1 + 1) * 16) - ($frame_crop_left_offset * 2) - ($frame_crop_right_offset * 2);

[830] Fix | Delete

$this->height = ((2 - $frame_mbs_only_flag) * ($pic_height_in_map_units_minus1 + 1) * 16) - ($frame_crop_top_offset * 2) - ($frame_crop_bottom_offset * 2);

[831] Fix | Delete

}

[832] Fix | Delete

}

[833] Fix | Delete

[834] Fix | Delete

/**

[835] Fix | Delete

* @param int $bits

[836] Fix | Delete

[837] Fix | Delete

public function skipBits($bits) {

[838] Fix | Delete

$newBits = $this->currentBits + $bits;

[839] Fix | Delete

$this->currentBytes += (int)floor($newBits / 8);

[840] Fix | Delete

$this->currentBits = $newBits % 8;

[841] Fix | Delete

}

[842] Fix | Delete

[843] Fix | Delete

/**

[844] Fix | Delete

* @return int

[845] Fix | Delete

[846] Fix | Delete

public function getBit() {

[847] Fix | Delete

$result = (getid3_lib::BigEndian2Int(substr($this->sps, $this->currentBytes, 1)) >> (7 - $this->currentBits)) & 0x01;

[848] Fix | Delete

$this->skipBits(1);

[849] Fix | Delete

return $result;

[850] Fix | Delete

}

[851] Fix | Delete

[852] Fix | Delete

/**

[853] Fix | Delete

* @param int $bits

[854] Fix | Delete

[855] Fix | Delete

* @return int

[856] Fix | Delete

[857] Fix | Delete

public function getBits($bits) {

[858] Fix | Delete

$result = 0;

[859] Fix | Delete

for ($i = 0; $i < $bits; $i++) {

[860] Fix | Delete

$result = ($result << 1) + $this->getBit();

[861] Fix | Delete

}

[862] Fix | Delete

return $result;

[863] Fix | Delete

}

[864] Fix | Delete

[865] Fix | Delete

/**

[866] Fix | Delete

* @return int

[867] Fix | Delete

[868] Fix | Delete

public function expGolombUe() {

[869] Fix | Delete

$significantBits = 0;

[870] Fix | Delete

$bit = $this->getBit();

[871] Fix | Delete

while ($bit == 0) {

[872] Fix | Delete

$significantBits++;

[873] Fix | Delete

$bit = $this->getBit();

[874] Fix | Delete

[875] Fix | Delete

if ($significantBits > 31) {

[876] Fix | Delete

// something is broken, this is an emergency escape to prevent infinite loops

[877] Fix | Delete

return 0;

[878] Fix | Delete

}

[879] Fix | Delete

}

[880] Fix | Delete

return (1 << $significantBits) + $this->getBits($significantBits) - 1;

[881] Fix | Delete

}

[882] Fix | Delete

[883] Fix | Delete

/**

[884] Fix | Delete

* @return int

[885] Fix | Delete

[886] Fix | Delete

public function expGolombSe() {

[887] Fix | Delete

$result = $this->expGolombUe();

[888] Fix | Delete

if (($result & 0x01) == 0) {

[889] Fix | Delete

return -($result >> 1);

[890] Fix | Delete

} else {

[891] Fix | Delete

return ($result + 1) >> 1;

[892] Fix | Delete

}

[893] Fix | Delete

}

[894] Fix | Delete

[895] Fix | Delete

/**

[896] Fix | Delete

* @return int

[897] Fix | Delete

[898] Fix | Delete

public function getWidth() {

[899] Fix | Delete

return $this->width;

[900] Fix | Delete

}

[901] Fix | Delete

[902] Fix | Delete

/**

[903] Fix | Delete

* @return int

[904] Fix | Delete

[905] Fix | Delete

public function getHeight() {

[906] Fix | Delete

return $this->height;

[907] Fix | Delete

}

[908] Fix | Delete

}

[909] Fix | Delete

[910] Fix | Delete