/** * Decode the User Identity Negociation RQ * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->server_response_length = $stream_reader->readUInt16(); if ($this->server_response_length > 0) { $this->server_response = $stream_reader->readString($this->server_response_length); } }
/** * Decode the User Identity Negociation RQ * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->user_identity_type = $stream_reader->readUInt8(); $this->positive_response_requested = $stream_reader->readUInt8(); $this->primary_field_length = $stream_reader->readUInt16(); $this->primary_field = $stream_reader->readString($this->primary_field_length); $this->secondary_field_length = $stream_reader->readUInt16(); if ($this->secondary_field_length > 0) { $this->secondary_field = $stream_reader->readString($this->secondary_field_length); } }
/** * Decode the Sop Class Extended Negociation * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->uid_length = $stream_reader->readUInt16(); $this->sop_class_uid = $stream_reader->readUID($this->uid_length); $this->sca_support = $stream_reader->readUInt8(); $stream_reader->skip(1); $this->sca_digital_signature_support = $stream_reader->readUInt8(); $stream_reader->skip(1); $this->sca_element_coercion = $stream_reader->readUInt8(); $stream_reader->skip(1); }
/** * Decode the asynchronous Operations * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->max_number_operations_invoked = $stream_reader->readUInt16(); $this->max_number_operations_performed = $stream_reader->readUInt16(); }
/** * Decode the value * * @param CDicomStreamReader $stream_reader The stream reader * @param string $endianness The endianness, must be equal to "BE" (Big Endian) or "LE" (Little Endian) * * @return null * * @todo traiter les cas FL, FD, OB, OW, OF, SQ */ protected function decodeValue(CDicomStreamReader $stream_reader, $endianness) { switch ($this->vr) { case 'AE': case 'AS': case 'CS': case 'DA': case 'DS': case 'DT': case 'FL': case 'FD': case 'IS': case 'LO': case 'LT': case 'OB': case 'OF': case 'OX': case 'OW': case 'PN': case 'SH': case 'ST': case 'TM': case 'UN': case 'UT': $this->value = $stream_reader->readString($this->length); break; case 'AT': $this->value = array(); $this->value[] = $stream_reader->readUInt16($endianness); $this->value[] = $stream_reader->readUInt16($endianness); break; case 'SL': $this->value = $stream_reader->readInt32($endianness); break; case 'SS': $this->value = $stream_reader->readInt16($endianness); break; case 'UI': $this->value = $stream_reader->readUID($this->length); break; case 'UL': $this->value = $stream_reader->readUInt32($endianness); break; case 'US': $this->value = $stream_reader->readUInt16($endianness); break; case 'SQ': $tmp_value = array(); $value_stream = new CDicomStreamReader(); /** Sequence of items with undefined length **/ if ($this->length == 0xffffffff) { $delimiter = new CDicomDataSet(); $delimiter->decode($stream_reader, $this->transfer_syntax); while ($delimiter->group_number == 0xfffe && $delimiter->element_number != 0xe0dd) { $sequence = array($delimiter); if ($delimiter->length == 0xffffffff) { $item_delimiter = new CDicomDataSet(); $item_delimiter->decode($stream_reader, $this->transfer_syntax); $sequence[] = $item_delimiter; while ($item_delimiter->group_number == 0xfffe && $item_delimiter->element_number != 0xe00d) { $dataset = new CDicomDataSet(); $dataset->decode($value_stream, $this->transfer_syntax); $sequence[] = $dataset; $item_delimiter = new CDicomDataSet(); $item_delimiter->decode($stream_reader, $this->transfer_syntax); $sequence[] = $item_delimiter; } } else { $sequence_end = $value_stream->getPos(); // + $sequence_length; while ($value_stream->getPos() < $sequence_end) { $dataset = new CDicomDataSet(); $dataset->decode($value_stream, $this->transfer_syntax); $sequence[] = $dataset; } } $delimiter = new CDicomDataSet(); $delimiter->decode($stream_reader, $this->transfer_syntax); $sequence[] = $delimiter; $tmp_value[] = $sequence; } } else { $content = $stream_reader->read($this->length); fwrite($value_stream->stream, $content, $this->length); $value_stream->rewind(); while ($value_stream->getPos() < $this->length) { $value_stream->skip(4); $sequence_length = $value_stream->readUInt32($endianness); $sequence = array(); $sequence_end = $value_stream->getPos() + $sequence_length; while ($value_stream->getPos() < $sequence_end) { $dataset = new CDicomDataSet(); $dataset->decode($value_stream, $this->transfer_syntax); $sequence[] = $dataset; } $tmp_value[] = $sequence; } } $this->value = $tmp_value; break; default: break; } }
/** * Decode the Implementation Version Name * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->uid_length = $stream_reader->readUInt16(); $this->sop_class_uid = $stream_reader->readUID($this->uid_length); $this->scu_role = $stream_reader->readUInt8(); $this->scp_role = $stream_reader->readUInt8(); }
/** * Decode the SOP class common extended negociation item * * @param CDicomStreamReader $stream_reader The stream reader * * @return null */ function decodeItem(CDicomStreamReader $stream_reader) { $this->sop_uid_length = $stream_reader->readUInt16(); $this->sop_class_uid = $stream_reader->readUID($this->sop_uid_length); $this->service_uid_length = $stream_reader->readUInt16(); $this->service_class_uid = $stream_reader->readUID($this->service_uid_length); $this->related_sop_classes_id_length = $stream_reader->readUInt16(); if ($this->related_sop_classes_id_length > 0) { $related_sop_classes_content = $stream_reader->read($this->related_sop_classes_id_length); $handle = fopen("php://temp", "w+"); fwrite($handle, $related_sop_classes_content); $related_sop_classes_stream = new CDicomStreamReader($handle); $this->related_sop_classes_id = array(); while ($related_sop_classes_stream->tell() <= $this->related_sop_classes_id_length) { $related_sop_class_id = new CDicomSubFieldRelatedSopClassIdentification(); $related_sop_class_id->decodeField($related_sop_classes_stream); } } }
/** * Read the length of the item from the stream * * @param CDicomStreamReader $stream The stream reader * * @return integer */ static function readItemLength(CDicomStreamReader $stream) { return $stream->readUInt16(); }
/** * Decode the PDU * * @param CDicomStreamReader $stream_reader The stream reader * * @return void */ function decodePDU(CDicomStreamReader $stream_reader) { $this->protocol_version = $stream_reader->readUInt16(); $stream_reader->skip(2); $this->called_AE_title = $stream_reader->readString(16); // On test si called_AE_title = AE title du serveur $this->calling_AE_title = $stream_reader->readString(16); // On passe 32 octets, réservés par Dicom $stream_reader->skip(32); $this->application_context = CDicomPDUItemFactory::decodeItem($stream_reader); $this->presentation_contexts = CDicomPDUItemFactory::decodeConsecutiveItemsByType($stream_reader, 0x20); $this->user_info = CDicomPDUItemFactory::decodeItem($stream_reader); }
/** * Decode the PDU * * @param CDicomStreamReader $stream_reader The stream reader * * @return void */ function decodePDU(CDicomStreamReader $stream_reader) { $this->protocol_version = $stream_reader->readUInt16(); // On vérifie que la version du protocole est bien 0001 if ($this->protocol_version != 0x1) { // Erreur echo "Protocol version differente de 1"; } $stream_reader->skip(2); $this->called_AE_title = $stream_reader->readString(16); // On test si called_AE_title = AE title du serveur $this->calling_AE_title = $stream_reader->readString(16); // On passe 32 octets, réservés par Dicom $stream_reader->skip(32); $this->application_context = CDicomPDUItemFactory::decodeItem($stream_reader); $this->presentation_contexts = CDicomPDUItemFactory::decodeConsecutiveItemsByType($stream_reader, 0x21); $this->user_info = CDicomPDUItemFactory::decodeItem($stream_reader); }