test dvrip

format/dvrip/struct.go

@@ -0,0 +1,185 @@
+package dvrip
+
+import (
+	"crypto/md5"
+	"encoding/binary"
+	"time"
+)
+
+var magicEnd = [2]byte{0x0A, 0x00}
+
+const alnum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+
+type Payload struct {
+	Head           byte
+	Version        byte
+	_              byte
+	_              byte
+	Session        int32
+	SequenceNumber int32
+	_              byte
+	_              byte
+	MsgID          int16
+	BodyLength     int32
+}
+type LoginResp struct {
+	AliveInterval int    `json:"AliveInterval"`
+	ChannelNum    int    `json:"ChannelNum"`
+	DeviceType    string `json:"DeviceType "`
+	ExtraChannel  int    `json:"ExtraChannel"`
+	Ret           int    `json:"Ret"`
+	SessionID     string `json:"SessionID"`
+}
+
+type requestCode uint16
+
+const (
+	codeLogin            requestCode = 1000
+	codeKeepAlive        requestCode = 1006
+	codeSystemInfo       requestCode = 1020
+	codeNetWorkNetCommon requestCode = 1042
+	codeGeneral          requestCode = 1042
+	codeChannelTitle     requestCode = 1046
+	codeSystemFunction   requestCode = 1360
+	codeEncodeCapability requestCode = 1360
+	codeOPPTZControl     requestCode = 1400
+	codeOPMonitor        requestCode = 1413
+	codeOPTalk           requestCode = 1434
+	codeOPTimeSetting    requestCode = 1450
+	codeOPMachine        requestCode = 1450
+	codeOPTimeQuery      requestCode = 1452
+	codeAuthorityList    requestCode = 1470
+	codeUsers            requestCode = 1472
+	codeGroups           requestCode = 1474
+	codeAddGroup         requestCode = 1476
+	codeModifyGroup      requestCode = 1478
+	codeDelGroup         requestCode = 1480
+	codeAddUser          requestCode = 1482
+	codeModifyUser       requestCode = 1484
+	codeDelUser          requestCode = 1486
+	codeModifyPassword   requestCode = 1488
+	codeAlarmSet         requestCode = 1500
+	codeOPNetAlarm       requestCode = 1506
+	codeAlarmInfo        requestCode = 1504
+	codeOPSendFile       requestCode = 1522
+	codeOPSystemUpgrade  requestCode = 1525
+	codeOPNetKeyboard    requestCode = 1550
+	codeOPSNAP           requestCode = 1560
+	codeOPMailTest       requestCode = 1636
+)
+
+type statusCode int
+
+const (
+	statusOK                                  statusCode = 100
+	statusUnknownError                        statusCode = 101
+	statusUnsupportedVersion                  statusCode = 102
+	statusRequestNotPermitted                 statusCode = 103
+	statusUserAlreadyLoggedIn                 statusCode = 104
+	statusUserIsNotLoggedIn                   statusCode = 105
+	statusUsernameOrPasswordIsIncorrect       statusCode = 106
+	statusUserDoesNotHaveNecessaryPermissions statusCode = 107
+	statusPasswordIsIncorrect                 statusCode = 203
+	statusStartOfUpgrade                      statusCode = 511
+	statusUpgradeWasNotStarted                statusCode = 512
+	statusUpgradeDataErrors                   statusCode = 513
+	statusUpgradeError                        statusCode = 514
+	statusUpgradeSuccessful                   statusCode = 515
+)
+
+var statusCodes = map[statusCode]string{
+	statusOK:                                  "OK",
+	statusUnknownError:                        "Unknown error",
+	statusUnsupportedVersion:                  "Unsupported version",
+	statusRequestNotPermitted:                 "Request not permitted",
+	statusUserAlreadyLoggedIn:                 "User already logged in",
+	statusUserIsNotLoggedIn:                   "User is not logged in",
+	statusUsernameOrPasswordIsIncorrect:       "Username or password is incorrect",
+	statusUserDoesNotHaveNecessaryPermissions: "User does not have necessary permissions",
+	statusPasswordIsIncorrect:                 "Password is incorrect",
+	statusStartOfUpgrade:                      "Start of upgrade",
+	statusUpgradeWasNotStarted:                "Upgrade was not started",
+	statusUpgradeDataErrors:                   "Upgrade data errors",
+	statusUpgradeError:                        "Upgrade error",
+	statusUpgradeSuccessful:                   "Upgrade successful",
+}
+
+var requestCodes = map[requestCode]string{
+	codeOPMonitor:     "OPMonitor",
+	codeOPTimeSetting: "OPTimeSetting",
+}
+
+type MetaInfo struct {
+	Width    int
+	Height   int
+	Datetime time.Time
+	FPS      int
+	Frame    string
+	Type     string
+}
+
+type Frame struct {
+	Data []byte
+	Meta MetaInfo
+}
+
+//sofiaHash func
+func sofiaHash(password string) string {
+	digest := md5.Sum([]byte(password))
+	hash := make([]byte, 0, 8)
+	for i := 1; i < len(digest); i += 2 {
+		sum := int(digest[i-1]) + int(digest[i])
+		hash = append(hash, alnum[sum%len(alnum)])
+	}
+	return string(hash)
+}
+
+//parseMediaType func
+func parseMediaType(dataType uint32, mediaCode byte) string {
+	switch dataType {
+	case 0x1FC, 0x1FD:
+		switch mediaCode {
+		case 1:
+			return "MPEG4"
+		case 2:
+			return "H264"
+		case 3:
+			return "H265"
+		}
+	case 0x1F9:
+		if mediaCode == 1 || mediaCode == 6 {
+			return "info"
+		}
+	case 0x1FA:
+		if mediaCode == 0xE {
+			return "PCM_ALAW"
+		}
+	case 0x1FE:
+		if mediaCode == 0 {
+			return "JPEG"
+		}
+	default:
+		return "unknown"
+	}
+
+	return "unexpected"
+}
+
+//parseDatetime func
+func parseDatetime(value uint32) time.Time {
+	second := int(value & 0x3F)
+	minute := int((value & 0xFC0) >> 6)
+	hour := int((value & 0x1F000) >> 12)
+	day := int((value & 0x3E0000) >> 17)
+	month := int((value & 0x3C00000) >> 22)
+	year := int(((value & 0xFC000000) >> 26) + 2000)
+
+	return time.Date(year, time.Month(month), day, hour, minute, second, 0, time.UTC)
+}
+
+//binSize func
+func binSize(val int) []byte {
+	buf := make([]byte, 4)
+	binary.BigEndian.PutUint32(buf, uint32(val))
+	return buf
+}