/**
* Constructs the class with given parameters and reads object related data
* from the Ogg bitstream.
*
* @param Zend_Io_Reader $reader The reader object.
*/
public function __construct($reader)
{
$this->_reader = $reader;
$this->_capturePattern = $this->_reader->read(4);
if ($this->_capturePattern != 'OggS') {
require_once 'Zend/Media/Ogg/Exception.php';
throw new Zend_Media_Ogg_Exception('Not a valid Ogg bitstream');
}
$this->_streamStructureVersion = $this->_reader->readUInt8();
if ($this->_streamStructureVersion != 0) {
require_once 'Zend/Media/Ogg/Exception.php';
throw new Zend_Media_Ogg_Exception('Unsupported Ogg stream structure version');
}
$this->_headerTypeFlag = $this->_reader->readUInt8();
$this->_granulePosition = $this->_reader->readInt64LE();
$this->_bitstreamSerialNumber = $this->_reader->readUInt32LE();
$this->_pageSequenceNumber = $this->_reader->readUInt32LE();
$this->_crcChecksum = $this->_reader->readUInt32LE();
$this->_numberPageSegments = $this->_reader->readUInt8();
$this->_segmentTable = array();
for ($i = 0; $i < $this->_numberPageSegments; $i++) {
$this->_segmentTable[] = $this->_reader->readUInt8();
}
$this->_headerSize = $this->_numberPageSegments + 27;
$this->_pageSize = array_sum($this->_segmentTable);
$this->_size = $this->_headerSize + $this->_pageSize;
}
/**
* Reads 1 record from the file.
*/
protected function readRecord()
{
$record_header = $this->readRecordHeader();
$local_msg_type = $record_header['Local Message Type'];
if ($record_header['Message Type'] === true) {
//this is a definition message
$def = $this->readRecordDefinition();
$this->message_type_definitions[$local_msg_type] = $def;
} else {
$def = $this->message_type_definitions[$local_msg_type];
$data = array();
/*
* Architecture Type
* 0: Definition and Data Messages are Little Endian
* 1: Definition and Data Message are Big Endian
*/
$big_endian = $def['architecture'] === 1;
if ($this->file_type === null) {
//default filetype, file_id is overal hetzelfde
$this->file_type = \Fit\FileType::activity;
}
foreach ($def['fields'] as $field_def) {
$profile_field_def = $this->profile->findFieldDefinition($this->file_type, $def['global_msg_number'], $field_def['field_def_number']);
if ($profile_field_def) {
$field_name = $profile_field_def[\Fit\Field::NAME];
$field_factor = (double) $profile_field_def[\Fit\Field::FACTOR];
$field_unit = $profile_field_def[\Fit\Field::UNIT];
} else {
$field_name = 'no:' . $field_def['field_def_number'];
$field_factor = 1;
$field_unit = '';
}
switch ($field_def['base_type']['base_type_definition']['name']) {
case 'string':
$value = $this->reader->readString8($field_def['size']);
break;
case 'sint8':
$value = $this->reader->readInt8();
break;
case 'enum':
case 'uint8z':
case 'uint8':
$value = $this->reader->readUInt8();
break;
case 'sint16':
$value = $big_endian ? $this->reader->readInt16BE() : $this->reader->readInt16LE();
break;
case 'uint16z':
case 'uint16':
$value = $big_endian ? $this->reader->readUInt16BE() : $this->reader->readUInt16LE();
break;
case 'sint32':
$value = $big_endian ? $this->reader->readInt32BE() : $this->reader->readInt32LE();
break;
case 'uint32z':
case 'uint32':
$value = $big_endian ? $this->reader->readUInt32BE() : $this->reader->readUInt32LE();
break;
case 'float32':
$value = $big_endian ? $this->reader->readFloatBE() : $this->reader->readFloatLE();
break;
case 'float64':
$value = $big_endian ? $this->reader->readDoubleBE() : $this->reader->readDoubleLE();
break;
case 'byte':
default:
$value = $this->reader->read($field_def['size']);
}
if (is_numeric($value) && $field_factor > 0) {
$value *= $field_factor;
}
$data[$field_name] = array('value' => $value, 'unit' => $field_unit);
if ($def['global_msg_number'] === 0 && $field_name === 'type') {
$this->file_type = $value;
}
}
$this->records[] = $data;
}
}
/**
* Reads 1 record from the file.
*/
protected function readRecord()
{
$record_header = $this->readRecordHeader();
$local_msg_type = $record_header['Local Message Type'];
if ($record_header['Message Type'] === true) {
//this is a definition message
$def = $this->readRecordDefinition();
$this->message_type_definitions[$local_msg_type] = $def;
} else {
//this is a data message
$def = $this->message_type_definitions[$local_msg_type];
$data = array();
/*
* Architecture Type
* 0: Definition and Data Messages are Little Endian
* 1: Definition and Data Message are Big Endian
*/
$big_endian = $def['architecture'] === 1;
if ($this->file_type === null) {
//default filetype, file_id is overal hetzelfde
$this->file_type = \Fit\FileType::activity;
}
foreach ($def['fields'] as $field_def) {
$profile_field_def = $this->profile->findFieldDefinition($this->file_type, $def['global_msg_number'], $field_def['field_def_number']);
if ($profile_field_def) {
$field_name = $profile_field_def[\Fit\Field::NAME];
$field_factor = (double) $profile_field_def[\Fit\Field::FACTOR];
$field_unit = $profile_field_def[\Fit\Field::UNIT];
} else {
$field_name = 'no:' . $field_def['field_def_number'];
$field_factor = 1;
$field_unit = '';
}
switch ($field_def['base_type']['base_type_definition']['name']) {
case 'string':
$value = $this->reader->readString8($field_def['size']);
break;
case 'sint8':
$value = $this->reader->readInt8();
break;
case 'enum':
case 'uint8z':
case 'uint8':
$value = $this->reader->readUInt8();
break;
case 'sint16':
$value = $big_endian ? $this->reader->readInt16BE() : $this->reader->readInt16LE();
break;
case 'uint16z':
case 'uint16':
$value = $big_endian ? $this->reader->readUInt16BE() : $this->reader->readUInt16LE();
break;
case 'sint32':
$value = $big_endian ? $this->reader->readInt32BE() : $this->reader->readInt32LE();
break;
case 'uint32z':
case 'uint32':
$value = $big_endian ? $this->reader->readUInt32BE() : $this->reader->readUInt32LE();
break;
case 'float32':
$value = $big_endian ? $this->reader->readFloatBE() : $this->reader->readFloatLE();
break;
case 'float64':
$value = $big_endian ? $this->reader->readDoubleBE() : $this->reader->readDoubleLE();
break;
case 'byte':
default:
$value = $this->reader->read($field_def['size']);
}
if (is_numeric($value) && $field_factor > 0) {
$value *= $field_factor;
}
$data[$field_name] = array('value' => $value, 'unit' => $field_unit);
if ($def['global_msg_number'] === 0 && $field_name === 'type') {
$this->file_type = $value;
}
}
$this->records[] = $data;
}
if ($this->debug) {
$style = 'padding:1px 3px;background:white;';
$style2 = 'padding:1px 3px;background:lightgrey;';
$style3 = 'padding:1px 3px;background:darkgrey;';
static::$log->add('
<tr>
<td style="' . $style . '">' . intval($this->headerbits[7]) . '</td>
<td style="' . $style2 . '">' . intval($this->headerbits[6]) . '</td>
<td style="' . $style . '">' . intval($this->headerbits[5]) . '</td>
<td style="' . $style . '">' . intval($this->headerbits[4]) . '</td>
<td style="' . $style2 . '">' . intval($this->headerbits[3]) . '</td>
<td style="' . $style2 . '">' . intval($this->headerbits[2]) . '</td>
<td style="' . $style2 . '">' . intval($this->headerbits[1]) . '</td>
<td style="' . $style2 . '">' . intval($this->headerbits[0]) . '</td>
<td style="' . $style3 . '">' . $local_msg_type . '</td>
<td style="' . $style3 . '">' . $def['global_msg_number'] . '</td>
<td style="' . $style3 . '">' . $this->file_type . '</td>
');
if (isset($data)) {
foreach ($data as $k => $d) {
$v = $d['value'];
if (stripos($k, 'time') !== false && stripos($k, 'total') === false) {
$v = strftime('%FT%H:%M:%S%z', \Fit\Data::timeToUnix($v));
} elseif ($d['unit'] === 'deg') {
$v = \Fit\Data::positionToDegrees($v);
}
static::$log->add('<td style="' . $style . '">' . $k . ': ' . $v . $d['unit'] . '</td>');
}
}
static::$log->add('</tr>');
}
}