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![Uvc driver mac Uvc driver mac](/uploads/1/1/8/5/118544197/196671902.png)
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Mac Uvc Camera
UVC driver reads the configuration values from the device HW registry key and configures the device on the OS accordingly. For example, if the firmware specifies the device to be registered as a sensor camera using a configuration value, UVC driver registers the device just under that category. UVC and UAC -compliant. No driver installation necessary for Systems supporting UVC including XP, Vista, Win7, Mac OS X, Linux, Solaris, PlayStation, etc. USB 2.0 Interface for both video and audio; USB Bus-powered (5 unit loads); Continuous speed shooting: 30 frames per second. Your Logitech camera must be UVC (Universal Video Class) compliant in order to be used on your Mac OS 10.4.9 or later computer. These standard UVC drivers are provided by the operating system and will only provide minimal camera support. For updates on compatibility issues and driver support, please continue to check the Logitech Support Website. UVC devices work well with native Mac OS applications like Photobooth, iChat, FaceTime HD and QuickTime. Logitech webcam driver. If a webcam has a proprietary driver like a Logitech driver, then it will not be compatible with the Mac OS applications listed above. The following software features are independent of driver support.
If you are providing a driver for a webcam or a digital camcorder, consider using the system-supplied universal serial bus (USB) Video Class driver, Usbvideo.sys. The USB Video Class (UVC) driver is a Microsoft-provided AVStream minidriver that provides driver support for USB Video Class devices. When your device uses UVC, you do not need to supply your own driver. Instead, the device works automatically with the system-supplied driver.
In the USB Video Class model, vendors do not write drivers; instead, vendors implement video streaming hardware according to the guidelines in the Universal Serial Bus Device Class Definition for Video Devices Specification document located on the USB Implementers Forum website. The UVC driver queries the hardware directly to obtain its capabilities and then drives the device, with no proprietary driver required.
You can optionally extend UVC driver functionality to add vendor-specific processing.
The following table shows support for UVC in different versions of Windows:
UVC Version | Windows Vista/XP | Windows 7 | Windows 8 |
---|---|---|---|
USB Video Class 1.5 (H.264 video codec) | Not supported | Not supported | Supported |
USB Video Class 1.1 | Not supported | Supported | Supported |
USB Video Class 1.0 | Supported | Supported | Supported |
Beginning with Windows 8, the H.264 video codec (encoder/decoder) is supported. H.264 is an open standard that allows efficient video compression techniques for reducing the use of network bandwidth and storage space. This leads to a higher video quality for a given bit rate. For more information, see USB H.264 Video Cameras Support. Also refer to Microsoft Proposed Extensions to the USB Video Class for H.264.
The following list shows some advantages to using the Usbvideo.sys driver:
- No CD required for installation
- No driver writing cost
- No maintenance cost
- Opportunity for vendors to add functionality
- Easier debugging with public symbols
- Works with Driver Verifier
- Works with checked OS builds
- Compliant with ACPI power management
- Compliant with Selective Suspend power management
- Supports multimedia APIs in Media Foundation and DirectShow
The system-supplied Usbvideo.sys driver supports the following UVC features in different versions of Windows:
UVC feature | Windows Vista/XP | Windows 7 | Windows 8 |
---|---|---|---|
Single video control interface and one or more video streaming interfaces | Supported | Supported | Supported |
Standard units and terminals, including Extension units | Supported | Supported | Supported |
Still image capture support for all three methods defined in the UVC specification | Supported | Supported | Supported |
Bulk and isochronous devices | Supported | Supported | Supported |
Streaming parameter negotiation using probe commit controls | Supported | Supported | Supported |
Compressed formats: MJPEG, DV | Supported | Supported | Supported |
Uncompressed formats: YUY2, NV12 | Supported | Supported | Supported |
Supports both capture and render devices | Supported | Supported | Supported |
Compressed format: MPEG2TS | Not Supported | Not Supported | Not Supported |
Stream-based and frame-based formats | Not supported | Supported | Supported |
H.264 video codec | Not Supported | Not Supported | Supported |
Customizing the UVC Driver
You can customize your support for UVC by supplying an Extension Unit plug-in. Extension units provide a private control channel between device and vendor-supplied application.
![Uvc driver mac Uvc driver mac](/uploads/1/1/8/5/118544197/196671902.png)
Additional Resources
To test your UVC implementation, you can use the following tools:
Windows 10 Uvc Driver
- GraphEdit
- KsStudio
- USBView
For more information about these tools, see AVStream Testing and Debugging.
![Driver Driver](https://www.jiusion.com/u_file/1907/photo/9b150a6f0e.jpg)
You can find specifications for USB Video Class 1.1 on the USB Implementers Forum website.