-
Notifications
You must be signed in to change notification settings - Fork 43
Expand file tree
/
Copy pathp_0x9101.go
More file actions
87 lines (79 loc) · 3.01 KB
/
p_0x9101.go
File metadata and controls
87 lines (79 loc) · 3.01 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
package model
import (
"encoding/binary"
"fmt"
"github.com/cuteLittleDevil/go-jt808/protocol"
"github.com/cuteLittleDevil/go-jt808/protocol/jt808"
"github.com/cuteLittleDevil/go-jt808/protocol/utils"
"github.com/cuteLittleDevil/go-jt808/shared/consts"
"strings"
)
type P0x9101 struct {
BaseHandle
// ServerIPLen 视频服务器IP地址长度
ServerIPLen byte `json:"serverIPLen"`
// ServerIPAddr 视频服务器IP地址
ServerIPAddr string `json:"serverIPAddr"`
// TcpPort 视频服务器TCP端口号，不使用TCP协议传输时保持默认值0即可（TCP和UDP二选一，当TCP和UDP均非默认值时一般以TCP为准）
TcpPort uint16 `json:"tcpPort"`
// UdpPort 视频服务器UDP端口号，不使用UDP协议传输时保持默认值0即可（TCP和UDP二选一，当TCP和UDP均非默认值时一般以TCP为准）
UdpPort uint16 `json:"udpPort"`
// ChannelNo 逻辑通道号
ChannelNo byte `json:"channelNo"`
// DataType 数据类型 0-音视频 1-视频 2-双向对讲 3-监听 4-中心广播 5-透传
DataType byte `json:"dataType"`
// StreamType 码流类型 0-主码流 1-子码流
StreamType byte `json:"streamType"`
}
func (p *P0x9101) Protocol() consts.JT808CommandType {
return consts.P9101RealTimeAudioVideoRequest
}
func (p *P0x9101) ReplyProtocol() consts.JT808CommandType {
return consts.T0001GeneralRespond
}
func (p *P0x9101) Parse(jtMsg *jt808.JTMessage) error {
body := jtMsg.Body
if len(body) < 1 {
return protocol.ErrBodyLengthInconsistency
}
p.ServerIPLen = body[0]
if len(body) != 1+int(p.ServerIPLen)+7 {
return protocol.ErrBodyLengthInconsistency
}
n := int(p.ServerIPLen)
p.ServerIPAddr = string(body[1 : n+1])
p.TcpPort = binary.BigEndian.Uint16(body[n+1:])
p.UdpPort = binary.BigEndian.Uint16(body[n+3:])
p.ChannelNo = body[n+5]
p.DataType = body[n+6]
p.StreamType = body[n+7]
return nil
}
func (p *P0x9101) Encode() []byte {
data := make([]byte, 0, 25)
data = append(data, p.ServerIPLen)
data = append(data, utils.String2FillingBytes(p.ServerIPAddr, len(p.ServerIPAddr))...)
data = binary.BigEndian.AppendUint16(data, p.TcpPort)
data = binary.BigEndian.AppendUint16(data, p.UdpPort)
data = append(data, p.ChannelNo)
data = append(data, p.DataType)
data = append(data, p.StreamType)
return data
}
func (p *P0x9101) HasReply() bool {
return false
}
func (p *P0x9101) String() string {
return strings.Join([]string{
"数据体对象:{",
fmt.Sprintf("\t%s:[%x]", p.Protocol(), p.Encode()),
fmt.Sprintf("\t[%02x] 服务器IP地址长度:[%d]", p.ServerIPLen, p.ServerIPLen),
fmt.Sprintf("\t[%x] 服务器IP地址:[%s]", p.ServerIPAddr, p.ServerIPAddr),
fmt.Sprintf("\t[%04x] 服务器视频通道监听端口号(TCP):[%d]", p.TcpPort, p.TcpPort),
fmt.Sprintf("\t[%04x] 服务器视频通道监听端口号(UDP):[%d]", p.UdpPort, p.UdpPort),
fmt.Sprintf("\t[%02x] 逻辑通道号:[%d]", p.ChannelNo, p.ChannelNo),
fmt.Sprintf("\t[%02x] 数据类型:[%d]", p.DataType, p.DataType),
fmt.Sprintf("\t[%02x] 码流类型:[%d]", p.StreamType, p.StreamType),
"}",
}, "\n")
}