1.介绍
ONVIF（Open Network Video Interface Forum，开放型网络视频接口论坛）
ONVIF规范描述了网络视频的模型、接口、数据类型以及数据交互的模式。并复用了一些现有的标准，如WS系列标准等。ONVIF规范的目标是实现一个网络视频框架协议，使不同厂商所生产的网络视频产品（包括摄录前端、录像设备等）完全互通。
ONVIF规范中设备管理和控制部分所定义的接口均以Web Services的形式提供。ONVIF规范涵盖了完全的XML及WSDL的定义。每一个支持ONVIF规范的终端设备均须提供与功能相应的Web Service。服务端与客户端的数据交互采用SOAP协议。ONVIF中的其他部分比如音视频流则通过RTP/RTSP进行 。
首页地址：https://www.onvif.org/
2.Gsoap安装：
下载gsoap_2.8.45.zip安装包，使用unzip gsoap_2.8.45.zip命令行解压，会解出gsoap-2.8目录：
解压完后，准备环境和安装Gsoap，如果Ubuntu之前没有安装以下工具包需要先安装：
# sudo apt-get install build-essential
# sudo apt-get install libgtk2.0-dev libglib2.0-dev
# sudo apt-get install checkinstall
# sudo apt-get install flex bison
# sudo apt-get install openssl
# sudo apt-get install libssl-dev
编译环境准备完后在gsoap解压更目录准备编译：
# ./configure --prefix=/usr/local/gSOAP
# make
# make install
执行make install成功后可发现在/usr/local/gSOAP/bin/目录：
这两个文件就是wsdl自动生成客户端服务端源码的关键
3.WSDL自动生成源代码
可以分为在线配置和本地配置(本文仅会介绍在Ubuntu中自动生成源码的方法，在Windows或OS，以及生成java/js等其他目标源码的方法可以自己尝试)：
本地配置：
可通过onvif官网地址右键另存文件如图:
把下载好的wsdl文件放在onvif目录:
可以自己编写一个这样的脚本wsdl2hOnvif.sh：
#!/bin/bash
/usr/local/gSOAP/bin/wsdl2h -c++ -s -t typemap.dat -o ./onvif.h onvif/devicemgmt.wsdl onvif/event.wsdl onvif/accesscontrol.wsdl onvif/accessrules.wsdl onvif/advancedsecurity.wsdl onvif/analytics.wsdl onvif/credential.wsdl onvif/deviceio.wsdl onvif/display.wsdl onvif/doorcontrol.wsdl onvif/imaging.wsdl onvif/media.wsdl onvif/media2.wsdl onvif/provisioning.wsdl onvif/ptz.wsdl onvif/receiver.wsdl onvif/recording.wsdl onvif/search.wsdl onvif/replay.wsdl onvif/schedule.wsdl onvif/thermal.wsdl onvif/analyticsdevice.wsdl onvif/remotediscovery.wsdl
wsdl指令介绍：
Usage: wsdl2h [-a] [-b] [-c|-c++|-c++11] [-d] [-e] [-f] [-g] [-h] [-I(大写i) path] [-i] [-j] [-k] [-l] [-m] [-M] [-N name] [-n name] [-P|-p] [-q name] [-R] [-r proxyhost[:port[:uid:pwd]]] [-r:userid:passwd] [-s] [-t typemapfile] [-U] [-u] [-V] [-v] [-w] [-W] [-x] [-y] [-z#] [-_] [-o outfile.h] infile.wsdl infile.xsd http://www... ...
| args | discribe |
|---|---|
| -a | generate indexed struct names for local elements with anonymous types |
| -b | bi-directional operations (duplex ops) added to serve one-way responses |
| -c | generate C source code |
| -c++ | generate C++ source code (default) |
| -c++11 | generate C++11 source code |
| -d | use DOM to populate xs:any, xs:anyType, and xs:anyAttribute |
| -e | don't qualify enum names |
| -f | generate flat C++ class hierarchy |
| -g | generate global top-level element declarations |
| -h | display help info |
| -I(大写i)path | use path to find files |
| -i | don't import (advanced option) |
| -j | don't generate SOAP_ENV__Header and SOAP_ENV__Detail definitions |
| -k | don't generate SOAP_ENV__Header mustUnderstand qualifiers |
| -l | display license information |
| -m | use xsd.h module to import primitive types |
| -M | suppress error "must understand element with wsdl:required='true'" |
| -Nname | use name for service prefixes to produce a service for each binding |
| -nname | use name as the base namespace prefix instead of 'ns' |
| -ofile | output to file |
| -P | don't create polymorphic types inherited from xsd__anyType |
| -p | create polymorphic types inherited from base xsd__anyType |
| -qname | use name for the C++ namespace of all declarations |
| -R | generate REST operations for REST bindings specified in a WSDL |
| -rhost[:port[:uid:pwd]] | connect via proxy host, port, and proxy credentials |
| -r:uid:pwd | connect with authentication credentials (digest auth requires SSL) |
| -s | don't generate STL code (no std::string and no std::vector) |
| -tfile | use type map file instead of the default file typemap.dat |
| -U | allow UTF8-encoded Unicode C/C++ identifiers when mapping XML tag names |
| -u | don't generate unions |
| -V | display the current version and exit |
| -v | verbose output |
| -W | suppress warnings |
| -w | always wrap response parameters in a response struct (<=1.1.4 behavior) |
| -x | don't generate _XML any/anyAttribute extensibility elements |
| -y | generate typedef synonyms for structs and enums |
| -z1 | compatibility with 2.7.6e: generate pointer-based arrays |
| -z2 | compatibility with 2.7.7 to 2.7.15: qualify element/attribute references |
| -z3 | compatibility with 2.7.16 to 2.8.7: qualify element/attribute references |
| -z4 | compatibility up to 2.8.11: don't generate union structs in std::vector |
| -z5 | compatibility up to 2.8.15 |
| -z6 | compatibility up to 2.8.17 |
| -_ | don't generate _USCORE (replace with UNICODE _x005f) |
| infile.wsdl | infile.xsd http://www... list of input sources (if none reads stdin) |
本地文件在编译时由于路径问题可能导致编译失败，修改对应路径即可，编译成功后会自动生成一个onvif.h文件。
修改为本地文件对应目录：
编译成功后结果：
在线配置：
在可以直接连接onvif网站且网络速度较好情况下，推荐使用在线配置方式，可以避免路径文件不正常问题，但比较依赖网络，配置时间可能较长。
可以自己编写一个这样的脚本wsdl2hOnvif_Online.sh：
#!/bin/bash
/usr/local/gSOAP/bin/wsdl2h -c++ -s -t typemap.dat -o ./onvif.h https://www.onvif.org/ver10/device/wsdl/devicemgmt.wsdl https://www.onvif.org/ver10/events/wsdl/event.wsdl ohttps://www.onvif.org/ver10/pacs/accesscontrol.wsdl https://www.onvif.org/ver10/pacs/accessrules.wsdl https://www.onvif.org/ver10/actionengine.wsdl https://www.onvif.org/ver10/advancedsecurity/wsdl/advancedsecurity.wsdl https://www.onvif.org/ver20/analytics/wsdl/analytics.wsdl http://www.onvif.org/ver10/credential/wsdl/credential.wsdl https://www.onvif.org/ver10/deviceio.wsdl https://www.onvif.org/ver10/display.wsdl https://www.onvif.org/ver10/pacs/doorcontrol.wsdl https://www.onvif.org/ver20/imaging/wsdl/imaging.wsdl https://www.onvif.org/ver10/media/wsdl/media.wsdl https://www.onvif.org/ver20/media/wsdl/media.wsdl https://www.onvif.org/ver10/provisioning/wsdl/provisioning.wsdl https://www.onvif.org/ver20/ptz/wsdl/ptz.wsdl https://www.onvif.org/ver10/receiver.wsdl https://www.onvif.org/ver10/recording.wsdl https://www.onvif.org/ver10/search.wsdl https://www.onvif.org/ver10/replay.wsdl http://www.onvif.org/ver10/schedule/wsdl/schedule.wsdl https://www.onvif.org/ver10/thermal/wsdl/thermal.wsdl https://www.onvif.org/ver10/analyticsdevice.wsdl https://www.onvif.org/onvif/ver10/network/wsdl/remotediscovery.wsdl
编译成功结果:
生成onvif.h文件后，就可以通过onvif.h文件生成对应的cpp源码：
可以自己编写一个这样的脚本soapcpp2Onvif.sh：
#!/bin/bash
rm ./onvif_out/* -rf
/usr/local/gSOAP/bin/soapcpp2 -C -L -c++ -d ./onvif_out -i -I ../gsoap-2.8/gsoap:../gsoap-2.8/gsoap/import:../gsoap-2.8/gsoap/custom:../gsoap-2.8/gsoap/extras -x onvif.h
/usr/local/gSOAP/bin/soapcpp2 -C -L -c++ -d ./onvif_out -I ../gsoap-2.8/gsoap:../gsoap-2.8/gsoap/import:../gsoap-2.8/gsoap/custom:../gsoap-2.8/gsoap/extras -x onvif.h
soapcpp2指令介绍：
Usage: soapcpp2 [-0|-1|-2] [-C|-S] [-T] [-Ecdt] [-L] [-a] [-A] [-b] [-c|-c++|-c++11] [-d path] [-e] [-f N] [-h] [-i] [-I(大写i) path:path:...] [-l] [-m] [-n] [-p name] [-Q name] [-q name] [-r] [-s] [-t] [-u] [-V] [-v] [-w] [-x] [-y] [-z#] [infile]
| args | discribe |
|---|---|
| -1 | generate SOAP 1.1 bindings |
| -2 | generate SOAP 1.2 bindings |
| -0 | no SOAP bindings, use REST |
| -C | generate client-side code only |
| -S | generate server-side code only |
| -T | generate server auto-test code |
| -Ec | generate extra routines for deep copying |
| -Ed | generate extra routines for deep deletion |
| -Et | generate extra routines for data traversals with walker functions |
| -L | don't generate soapClientLib/soapServerLib |
| -a | use SOAPAction with WS-Addressing to invoke server-side operations |
| -A | require SOAPAction to invoke server-side operations |
| -b | serialize byte arrays char[N] as string |
| -c | generate C source code |
| -c++ | generate C++ source code (default) |
| -c++11 | generate C++ source code optimized for C++11 (compile with -std=c++11) |
| -dpath | use path to save files |
| -e | generate SOAP RPC encoding style bindings (also use -1 or -2) |
| -fN | multiple soapC files, with N serializer definitions per file (N>=10) |
| -h | display help info |
| -I(大写i)path | use path(s) for #import (paths separated with ':') |
| -i | generate C++ service proxies and objects inherited from soap struct |
| -j | generate C++ service proxies and objects that share a soap struct |
| -l | generate linkable modules (experimental) |
| -m | generate Matlab(tm) code for MEX compiler (deprecated) |
| -n | use service name to rename service functions and namespace table |
| -pname | save files with new prefix name instead of 'soap' |
| -Qname | use name as the C++ namespace for decls, including custom serializers |
| -qname | use name as the C++ namespace for decls, excluding custom serializers |
| -r | generate soapReadme.md report |
| -s | generate deserialization code with strict XML validation checks |
| -t | generate code for fully xsi:type typed SOAP/XML messaging |
| -u | uncomment comments in WSDL/schema output by suppressing XML comments |
| -V | display the current version and exit |
| -v | verbose output |
| -w | don't generate WSDL and schema files |
| -x | don't generate sample XML message files |
| -y | include C/C++ type access information in sample XML messages |
| -z1 | compatibility: generate old-style C++ service proxies and objects |
| -z2 | compatibility with 2.7.x: omit XML output for NULL pointers |
| -z3 | compatibility with 2.8.30 and earlier: _param_N is indexed globally |
| infile | header file to parse (if none reads stdin) |
编译成功结果：
编译后的文件列表：
有了这些文件后就可以开始通过soapClient接口来实现各项onvif的功能了。下一篇将会介绍相关onvif的功能实现。