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USB Video Class (UVC) Cameras
Any USB Video Class (UVC) camera should work in Debut. Mac OS X has had native support for UVC devices since version 10.4.3. If a camera works in PhotoBooth, iChat or FaceTime out of the box, then it is most likely UVC compliant. Most new USB cameras are UVC devices.
Non-UVC Cameras
Debut is able to support some non-UVC cameras using an open-source driver named macam. A list of cameras supported by macam is available at http://webcam-osx.sourceforge.net/cameras/index.php.
To use a non-UVC camera in Debut:
Lenovo USB2.0 UVC Camera Driver for Windows 10 (64-bit) - Desktop. Drivers & Software Knowledge Base & Guides How-tos & Solutions Warranty Lookup. Supported Web Conferencing Software with UVC Vsee Supports absolute UVC control for Pan Tilt and Zoom operations Zoom.US Supports relative UVC control for Pan Tilt and Zoom opertations.
- Download the latest macam disk image from http://webcam-osx.sourceforge.net/downloads.html.
- Double click the dmg file (e.g., macam.0.9.2.dmg) to see the contents in Finder.
- Launch Terminal (located in /Applications/Utilities) and run the following command:
- Enter the administrator password when prompted.
- Quit Debut if it's already running.
- Connect the camera, launch Debut and press the Device toolbar button. The non-UVC camera should be automatically used if there are no other connected devices. Otherwise, it can be selected in Preferences -> Devices.
Video Capture Devices
Some USB video capture devices, such as the SIIG USB Video/Audio Capture Device (http://www.altoedge.com/video/siig-video-capture2.html), can be used in Debut. Third-party software is usually needed to make them work. For example, VideoGlide (http://www.echofx.com/videoglide.html).
Please see Using the SIIG USB Video Capture Device for details.
FireWire Cameras
Cameras with a FireWire interface, such as DV cameras or Apple's iSight, can work in Debut. If a Firewire connected camera works in Photobooth, iChat or FaceTime then it should work in Debut just like a regular built-in or USB camera.
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Download Debut Video Capture Software free. Seeing and using the software first hand can answer most questions-->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:
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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 |
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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
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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.
Additional Resources
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To test your UVC implementation, you can use the following tools:
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- GraphEdit
- KsStudio
- USBView
For more information about these tools, see AVStream Testing and Debugging.
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You can find specifications for USB Video Class 1.1 on the USB Implementers Forum website.