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系统设计
joorhy edited this page May 10, 2013
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- 功能描述
- Start Code: 开始码,32bit,固定为JOSP;
- Protocol Version: 协议版本,4bit,1~15;
- Protocol Type: 协议类型,2bit,00-TCP,01-UDP;
- Packet Flag: 包标志,2bit,0-未分包,1-开始包,2-中间包,3-结束包;
- Command Type: 命令类型,8bit,0-255;
- Packet Sequence: 包序号,16bit,0~65535;
- Return Code: 错误码,8bit,0~255;
- Reserved: 预留,8bit,值为0x00;
- Expand Length: 扩展数据长度,16bit,0-65535;
- User ID: 用户ID,256bit,MD5摘要;
- CRC_32: 循环冗余校验码,32bit;
- Command Type=0x01;
- Expand Data:
- UserName:用户名,16Byte,由字母组成,区分大小写;
- PassWord:密码,16Byte,由字母、数字、下划写组成,区分大小写且不低于8位;
- Command Type=0x02;
- Command Type=0x03;
- Command Type=0x04;
- Command Type=0x05;
- Command Type=0x06;
- Expand Data:
- ResourseList:资源列表,可变长度,XML格式;
- Command Type=0x07;
- Expand Data:
- ResourceID:资源ID,256bit,MD5摘要;
- StreamType:码流类型,32bit,0-主码流,1-子码流;
- Command Type=0x08;
- Expand Data:
- StreamID:资源ID,256bit,MD5摘要;
- MediaCode:媒体类型,32bit,JOMS-JO数据类型;
- IFrameIval:I帧间隔,8bit;
- FramePerSecond:帧率,8bit;
- Width:视频宽度,16bit;
- Height:视频高度,16bit;
- Command Type=0x09;
- Expand Data:
- StreamID:媒体流ID,256bit,MD5摘要;
- Command Type=0x0A;
- Command Type=0x0B;
- Expand Data:
- ResourceID: 资源ID,256bit,MD5摘要;
- Sub Command: 云镜命令,16bit;
- JO_PTZ_UP 1 //向上旋转
- JO_PTZ_DOWN 2 //向下旋转
- JO_PTZ_LEFT 3 //向左旋转
- JO_PTZ_RIGHT 4 //向右旋转
- JO_PTZ_UP_LEFT 5 //左上旋转
- JO_PTZ_UP_RIGHT 6 //右上旋转
- JO_PTZ_DOWN_LEFT 7 //左下旋转
- JO_PTZ_DOWN_RIGHT 8 //右下旋转
- JO_PTZ_PRE_SET 9 //设置预置点
- JO_PTZ_PRE_CLR 10 //清除预置点
- JO_PTZ_GOTO_PRE 11 //转至预置点
- JO_PTZ_ZOOM_IN 12 //倍率变大
- JO_PTZ_ZOOM_OUT 13 //倍率变小
- JO_PTZ_FOCUS_NEAR 14 //焦点调近
- JO_PTZ_FOCUS_FAR 15 //焦点调远
- JO_PTZ_IRIS_OPEN 16 //光圈变大
- JO_PTZ_IRIS_CLOSE 17 //光圈变小
- JO_PTZ_PAN_AUTO 18 //自动扫描
- JO_PTZ_AUX_ON 19 //辅助设备打开
- JO_PTZ_AUX_OFF 20 //辅助设备关闭
- Param: 云镜控制速度,16bit;
- Sub Command取值 1
8时,表示速度,取值范围为0255,0代表停止;- Sub Command取值 9~11时,表示预置点位置,取值范围为正整数;
- Sub Command取值 12
18时,表示速度,取值范围为0255,0代表停止;- Sub Command取值 19~20时,表示开关编号,取值范围为正整数;
- 1-灯光
- 2-雨刷
- 3-风扇
- Command Type=0x0C;
- Command Type=0x0D;
- Expand Data:
- ResourceID: 资源ID,256bit,MD5摘要;
- BeginTime: 开始时间,64bit,time_t格式;
- EndTime: 结束时间,64bit,time_t格式;
- Command Type=0x0E;
- TimeList:n个BeginTime+EndTime的组合,BeginTime与EndTime的定义与14条相同;
- Command Type=0x0F;
- ResourceID:资源ID,256bit,MD5摘要;
- BeginTime:开始时间,64bit;
- EndTime:结束时间,64bit;
- Command Type=0x10;
- Expand Data:
- StreamID:资源ID,256bit,MD5摘要;
- MediaCode:媒体类型,32bit,JOMS-JO数据类型;
- IFrameIval:I帧间隔,8bit;
- FramePerSecond:帧率,8bit;
- Width:视频宽度,16bit;
- Height:视频高度,16bit;
- StartCode:魔术字段,32bit,值为JOAV;
- DataLen:数据长度(不包括头),32bit;
- FrameType:帧类型,3-I帧,4-B帧,5-P帧,6-音频帧;
- TimeStamp:时间戳,64bit;
- FrameSeq:帧序列号,64bit;
- IsLastFrame,结束标志,32bit;
- Command Type=0x11;
- Expand Data:
- TimeStamp:开始时间,64bit,0-无效;
- TimeInterval:时间间隔,32bit,单位ms;
- Command Type=0x12;