Build Webcam and IP camera solutions efficiently in C#.Net
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Get started
- Copy the C# code example into Visual Studio
- Build your IP Camera project
Did you know?
Did you know, that this SDK was used to build Ozeki Camera Recorder?
If you don't want to write code, it could be just what you need. Download it now from the follolwing page: Download Ozeki Camera Recorder.
Lady danger lipstick. This description demonstrates in a really simple manner how the Onvif IP camera server works with USB camera and why it is useful. To implement a server you must have OZEKI Camera SDK installed, and a reference to OzekiSDK.dll should be added to your Visual Studio project.
Architecture of Onvif IP camera server for USB cameras
First let us clarify why it is needed to use an Onvif IP camera server instead of a simple application which can establish connection with an USB camera. The USB camera has just one stream, which means it can provide streaming to only one client at a time. Onvif IP camera server helps you to reach the image of the USB camera as a client by using RTSP (Real Time Streaming Protocol), and then transmitting it to multiple viewers in one time (Figure 1).
Figure 1 - Architecture of Onvif IP camera server for USB cameras
Now the USB camera almost works as an Onvif IP camera apart from the limits of most USB cameras have e.g. no PTZ-control, unability to adjust the lighting, no authentication, etc. These problems can be partly resolved by building-in the Onvif IP camera server e.g. you need to authenticate to server in order to use the USB camera. The PTZ feature can be resolved by optical zooming and by installing a PTZ device to the camera, but it is not recommended because it's price is more expensive and the zoomed image quality will be worse than a new IP Camera's.
Where can you use it?
The price and image quality of the USB cameras is low, but their resolution and FPS (Frame Per Second) can satisfy the basic needs. The USB camera has only one stream and supports only one client. This property of USB camera regulated the usability because nowadays multi-client support is an absolute necessity. The OZEKI Camera SDK is a good solution because by using it you can develop Onvif IP camera server software for USB cameras with this SDK.
Related Pages
FAQ
Below you can find the answers for the most frequently asked questions related to this topic:
How can I get the URL of the USB camera?
The USB camera has no URL. You need the URL of the servert to the connect to it.
What's the difference among USB camera, RTSP camera and ONVIF camera?
In case of USB cameras we do not need camera url and some functions such as moving, zooming, etc are not available. In case of RTSP cameras and ONVIF cameras there are more possibilities to adjust the image. The difference between the RTSP camera and the ONVIF camera is the following: the RTSP camera has only one stream but the ONVIF camera can have multiple streams at a time.
Ozeki Camera Recorder
If you are not a developer, but you need a great software to view or record your camera, we recommend you to use Ozeki Camera Recorder. This is a great end user product, that allows you to control your cameras from a webbrowser. It's easy and great. You can download it from the following link: Download Ozeki Camera Recorder.
Download link:
Download Ozeki Camera Recorder for Windows
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Anyone who is interested in IP security cameras will come across the acronym 'ONVIF' at some point. The acronym has a lot of mystery behind it and can be difficult to completely understand. This article will explain and demystify common misconceptions surrounding the acronym.
What is ONVIF? or What is an ONVIF camera?
ONVIF (Open Network Video Interface Forum) is a global and open corporate forum that was founded to standardize the IP-based surveillance camera industry. They have created several categories for compliance to make it easier for companies to create products that are compatible with other manufacturers. Often times this has mislead customers to believe the hype that any device with the 'ONVIF' label will work with anything on the market that claims to be ONVIF compatible. Small manufacturers that have little or no research and development investments package inexpensive chipset solutions in to camera shells and claim their products are ONVIF compatible and should work with any ONVIF NVR recorder. However, that is not the case. Such manufacturers should rightfully be called assemblers as they have zero investments in their own product development. You can find several companies online selling through Newegg, Amazon, or Ali Express which sell the same inexpensive IP camera solution. This can make finding the right security camera that will work with your system a learning milestone in your path to becoming a security camera prosumer.
Is my camera ONVIF compliant?
Because there are so many manufacturers out there it is impossible to say if your ONVIF camera is truly compliant. ONVIF created several profiles that are loosely followed by IP camera chipset manufacturers. Below is a table of commonly used ONVIF profiles for IP cameras and NVR recorders.
| Profile S (Streaming Video) | Profile C (Access control) | Profile G (Recording and Storage) | Profile Q (Quick Installation) |
|---|---|---|---|
|
|
| Plug-n-play compatible supports
|
My camera is ONVIF compliant, will it work?
In most cases you will get a video stream from the ONVIF camera but no other features. Motion detection, audio, remote viewing, camera settings, and PTZ control are features that will not work, even with an IP camera that is labeled 'ONVIF compliant'. Any company that you purchase from can claim their equipment is ONVIF compliant, however this is misleading and untrue. The only way to know is to test your ONVIF camera with the standalone DVR or NVR you intend to use. Different firmware versions on camera and recorders provide varying degree of compatibility thus making it impossible for either camera or recorder manufacturer to answer that question unless the exact camera and recorder models have been tested to work together.
How do I know what cameras I can use with my system?
A good rule of thumb is to use caution when purchasing from different companies. It is also a good idea to contact the company you purchased your recorder from to see if they support the cameras you are interested in. It is foolish to buy an ONVIF camera and expect it to work with your NVR without doing the proper research first. Do not expect to purchase an ONVIF camera and have it work with a security camera system unless it has been verified to do so by the company you are purchasing it from and vice versa.
How does ONVIF effect me as a consumer?
The intent here is not to intimidate you as the buyer to buy only from us. This article is meant to educate you about the existence of limitations with ONVIF compatibility that if overlooked can lead to a costly mistake. While every buyer has different assessment criteria when choosing a supplier, too commonly it is cost motivated. Using cost alone as a buying criteria can lead to more complications and headaches down the road, especially when trying to find a reliable recording solution. When making purchasing decisions it is important to consider the variety of camera types available from the supplier, and make sure a compatible standalone recorder solution exists.
Ptz Ip Camera Onvif
How can I connect ONVIF IP cameras to a NVR from CCTV Camera World?
If the ONVIF IP camera you have was approved and verified for use by our technical staff, then it is easy to add the camera to one of our NVR recorders once the camera and NVR have been configured to be on the same local network. As shown in the video below it takes a few mouse clicks to add the camera to the NVR. Its always sunny all episodes.
Onvif Ptz Control
How to Connect ONVIF IP Cameras to an Avalonix DVR or NVR
