mirror of
https://github.com/lkmio/gb-cms.git
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75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package stack
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import (
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"fmt"
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"gb-cms/common"
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)
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const (
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DeviceControlFormat = "<?xml version=\"1.0\"?>\r\n" +
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"<Control>\r\n" +
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"<CmdType>DeviceControl</CmdType>\r\n" +
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"<SN>%d</SN>\r\n" +
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"<DeviceID>%s</DeviceID>\r\n" +
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"<PTZCmd>%s</PTZCmd>\r\n" +
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"</Control>\r\n"
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)
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// PTZCmd A.3.1 指令格式
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type PTZCmd struct {
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}
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func (c *PTZCmd) Unmarshal() {
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}
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func (c *PTZCmd) Marshal(cmd, horizontalSpeed, verticalSpeed, zoomSpeed byte) string {
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checkCode := uint16(0xA5+0x0F+0x01+cmd+horizontalSpeed+verticalSpeed+(zoomSpeed&0xF0)) % 256
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// 地址范围000H—FFFH（即0—4095），其中000H地址作为广播地址。
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// 注： 前端设备控制中，不使用字节3和字节7的低4位地址码，使用前端设备控制消息体中的<DeviceID>统一编码标
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// 识控制的前端设备。
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// addr 12 bit
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return fmt.Sprintf("A50F01%02X%02X%02X%02X%02X", cmd, horizontalSpeed, verticalSpeed, zoomSpeed, checkCode)
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}
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func (d *Device) ControlPTZ(command string, channelId string) {
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var cmd byte
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var horizontalSpeed, verticalSpeed, zoomSpeed byte = 0, 0, 0
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switch command {
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case "right":
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cmd |= 1 << 0
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horizontalSpeed = 30
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break
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case "left":
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cmd |= 1 << 1
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horizontalSpeed = 30
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break
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case "down":
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cmd |= 1 << 2
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verticalSpeed = 30
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break
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case "up":
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cmd |= 1 << 3
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verticalSpeed = 30
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break
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case "zoomin":
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cmd |= 1 << 4
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zoomSpeed = 30
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break
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case "zoomout":
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cmd |= 1 << 5
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zoomSpeed = 30
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break
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case "stop":
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break
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default:
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return
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}
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ptzCmd := &PTZCmd{}
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cmdHex := ptzCmd.Marshal(cmd, horizontalSpeed, verticalSpeed, zoomSpeed)
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body := fmt.Sprintf(DeviceControlFormat, GetSN(), channelId, cmdHex)
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request := d.BuildMessageRequest(channelId, body)
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common.SipStack.SendRequest(request)
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}
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