Short FAQs about USB Capture (Plus)

What is the latency of USB Capture (Plus) device? Please refer to this article: USB Capture Latency Test. Which software can record 4K videos that are captured by USB Capture HDMI 4K Plus? Magewell Capture Express, VMix, OBS, XSplit Broadcaster, Meridix Broadcast Producer, etc., support 4K video recording. Can't capture audio when USB Capture HDMI Gen2 is used via the USB 3.0 expansion card of a VIA chip It is recommended to update the VIA chip driver to version 4.90A or above. My computer does not have a USB 3.0 port. How can I use the USB Capture (Plus) device? It is recommended that you purchase a USB type C to USB 3.0 adapter. Is USB Capture (Plus) compatible with USB 2.0? Yes. But the limited transmission bandwidth of USB 2.0 cannot guarantee the transmission of high frame rate or high resolution signal. Can multiple USB Capture (Plus) devices be connected on one computer? Yes. To ensure that the bandwidth won't be affected, make sure each USB capture device can be connected to an independent USB 3.0 Extensible Host Controller. You can check whether your computer has multiple independent USB 3.0 Extensible Host Controllers in Device Management. Do USB Capture (Plus) devices support using a phone or tablet as a source? Yes. Apple devices can use Lightning to HDMI cables to output screen signals. Android devices can use MHL adapters to output screen signals. When the computer connects with multiple USB Capture (Plus) devices, how are the devices sorted in the system? Devices are sorted by the time they are loaded by the system. Does the 3.5mm Jack interface on USB Capture HDMI (4K) Plus support Line Input? This interface can only be used to capture microphone audio. The level of the Line In audio is at least 50dB above that of the microphone audio. Misuse may cause damage to the hardware components of your capture device. What is the maximum frame rate when capturing 4K video using USB Capture HDMI 4K Plus? USB Capture HDMI 4K Plus supports 4Kp60 video input. However, limited by the bandwidth of USB 3.0, the maximum frame rate can only reach 30 fps when capturing 4K video in NV12 color format. What's the meaning of different statuses of indicator light? Please refer to this article: Status of the Indicator Light on USB Capture (Plus) device. Which brand of chipset is compatible with USB Capture (Plus) devices? USB Capture (Plus) devices are compatible with chipsets from Intel, Renesas, ASMedia and Fresco Logic. Only one audio channel can be found when I use a capture device that supports multiple audio channels on the macOS 10.13.1 system Please upgrade your system to macOS 10.13.2 and above. The captured 4K NV12/I420 video has ghosting problem Please update your firmware to the latest version. Will the capture quality and product life of device be affected by high working temperature? The housing temperature of Magewell USB capture device may be higher because of its metal shell and special cooling design. As long as the operating ambient temperature is between 0 to 50 ℃, it won't affect the capture quality and product life.

Short FAQs about Pro Capture

Can I use PCIe capture cards on a laptop? To use the capture card on a laptop, you need to check if your laptop has Thunderbolt and then prepare a Thunderbolt PCIe expansion box. The Thunderbolt expansion box is here used to convert PCIe interfaces to Thunderbolt interfaces. There are many Thunderbolt expansion box on the market to choose from, such as the xMac Mini Sever and Echo Express SE Ⅱ from Sonnet Technologies; the Node Pro from Akitio. You can also use a Magewell USB Capture (Plus) Family device with laptop, which can be readily connected to your laptop via a USB cable. Which product can capture 2560x1440p144 video? Pro Capture HDMI 4K Plus LT (part number: 11152) and Pro Capture HDMI 4K Plus (part number: 11150) cards support this video format. For more details, see Use Pro Capture card to capture video at 2560x1440p144. Do Pro Capture cards support capturing 8-channel LPCM embedded audio? The Pro Capture Capture cards support capturing up to 8 channels of LPCM audio. However, in Windows system, if you do not use the Magewell's SDK, you can only capture 2 channels of LPCM audio at most. When no CVBS video is input into Pro Capture Hexa CVBS, the input audio is shown to be available This is a normal phenomenon. Because of the physical nature of analog audio, the audio channel is always available. Can Pro Capture HDMI card only receive and capture audio? Yes. You need to specify Line In as the audio input source. Do Pro Capture SDI 4K Plus cards support 4Kp120 Dual-Link SDI video format? No. Pro Capture SDI 4K Plus cards support up to 4Kp60 video input. What kernel versions are supported by the Linux driver of Pro Capture cards? Kernel versions 2.6.35 and above are supported. The drivers are continually updated to support the latest Linux kernel. Do Pro Capture cards support Jetson TX2 platform? Yes. You can download the corresponding driver in the official website. When the computer connects with multi-channel Pro Capture cards, how are the channels sorted in the system? Capture channels are sorted by the time they are loaded by the system. Can PCIe x4 capture cards be used in the PCIe x2 slot? Yes, but this is not recommended. Because this will affect the capture bandwidth and decrease the capture ability. What is the latency of Pro Capture card? Users can open the low-latency mode of Magewell Pro Capture card, and developers can also open the low-latency mode through SDK to reduce the capture latency to 64 scan lines. Do Pro Capture SDI 4K Plus cards support single link 12G SDI signal input? Yes. It supports three connection modes: single-link 12G SDI, double-link 6G SDI and 4-link 3G SDI. What software does Magewell provide for Pro Capture cards? Capture Express, USB Capture Utility, Plugin for Premiere®, and Bridge for NDI®.

Short FAQs about Eco Capture

Are there any macOS drivers for Eco Capture devices? No. Are Eco Capture devices compatible with NVIDIA Xavier? Yes. The driver of Xaviver platform is the same as the driver of TX2 platform. Can I use the Eco Capture card on a computer/laptop via the Lightning to M.2 adapter? Yes. Note that macOS is not supported because currently Magewell does not provide a macOS driver for Eco Capture cards. Do Eco Capture cards support video cropping? Video cropping is not currently supported. Can Eco Capture card be connected through the mSATA interface on the main board? No. What is the type of M.2 interface of Eco Capture card? Magewell Eco Capture cards use M.2 M Key interfaces. Is it necessary to use the standard Magewell heat sink? No. If you don't want to use the standard heat sink, you should make sure that the cooling design of the chassis is good enough so that the core temperature of the capture card is lower than 85℃. What operating systems does Eco Capture driver support? Eco Capture drivers are currently available for Windows and Linux. What are the major differences between Eco Capture and Pro Capture products? The biggest difference between Eco Capture and Pro Capture cards is that there is no memory chip on the Eco Capture card. Therefore, the working mode of Eco Capture card has the following characteristics: (a) no support for private interface's low-latency capture mode; (b) no support for OSD; (c) no support for private interface's image cropping; (d) no support for private interface's aspect ratio conversion mode selection. Does Magewell provide SDK for Eco Capture? The latest version of the SDK supports Eco Capture cards.

Short FAQs about SDK

When I use MWCapture SDK’s example codes with Magewell HD (or UHD) capture device to capture 1080p (or 4K) video, the frame rate cannot reach 60fps Set the capture color format to RGB24 or YUY2, so that the frame rate can reach 60fps. Does MWCapture SDK support recording video as a lossless AVI file? This feature is not supported, but third-party software such as OBS provides lossless recording. Pro Capture cards cannot be identified by the example codes in the latest SDKv3, while other capture software, such as OBS and AMCap, can recognize the cards Please upgrade the Pro Capture driver to the latest version. Does SDKv3 have screenshot function? Yes. You can save screenshots as BMP images by referring to the "CaptureByInput" example, or as JPEG images by referring to the LowLatency example. Is there a function in SDKv3 that can set the brightness, contrast, hue, and saturation of images captured by USB Capture (Plus) devices? Currently, no function implement this functionality. We will add such function in the next release. Does SDKv3 provide an audio and video encoding interface? Currently, no function implement this functionality. We will add hardware encoding interface in the next release. If you need to implement software encoding functionality, you can refer to the "AVCapture" example. When using the "MWCaptureVideoFrameToPhysicalAddressEx" function in SDKv3 with a Pro Capture card to capture video, the computer crashes after the program is running for a while After calling "MWCaptureVideoFrameToPhysicalAddressEx" to capture a video frame, you must call "MWGetVideoCaptureStatus" to get the status of the current captured frame and release system resources. You can refer to the "CaptureByInput" example for development. After I set the color format to RGB24 and run the "XICapture" example in SDKv2, the preview image is upside down It is normal for an RGB24 image to have its original data upside down. If you want the orientation of the preview image to be normal, you must correct it at rendering. For example, in SDKv2, you can correct the orientation of an image by setting the fourth parameter of the "XIS_VideoRendererDrawImage" function to FALSE. I use the "XIS_OpenAudioCaptureEx" function in SDKv2 to open the same audio device several times. The first call returns success, but the second call returns failure XIS_OpenAudioCaptureEx is an exclusive audio capture interface, so the same audio device can only be opened once. To capture multi-channel audio streams from the same audio channel, you should use the "MWCreateAudioCapture" function in SDKv3, which only supports Pro Capture and Eco Capture cards. Video capture software developed with Media Foundation framework has compatibility problems with Magewell Pro Capture cards There are compatibility problems between Media Foundation framework and Pro Capture cards that support CC (Closed Caption). Disabling the CC feature of the capture card can solve the problem. How can I use Pro Capture and Eco Capture cards to capture 8-channel LPCM audio? You can use the private audio capture interface of the Magewell SDK to capture 8-channel LPCM audio. Please refer to the "AudioCapture" example in SDK for development. On Linux, how can I set the brightness, contrast, hue and saturation of the image captured by USB Capture (Plus) device through V4L2 interface? These color parameters can be set through the ioctl command, the command code can be found in the file “ /usr/src/linux-headers-xxxxx/include/uapi/linux/v4l2-controls.h”. On Linux, how can I check the status of USB Capture HDMI 4K Plus’s sources through the V4L2 interface? V4L2 does not provide this API. It is recommended to use SDKv3 for development. Can the example codes associated with USB Capture (Plus) devices in SDKv3 work without root authority (sudo) on Linux? Yes. Click here to download the file "189-usbdev.rules" , move it to the directory "/etc/udev/rules.d", and then restart your computer. How can I use Pro Capture or Eco Capture cards to capture compressed audio (non-LPCM format)? Only by using the private audio capture interface in Magewell’s SDK, can compressed audio be captured through Pro Capture and Eco Capture products. You can refer to the "MultiAudioCapture" example in SDK for development. Note that Pro Capture and Eco Capture cards do not have audio decoding function, so the captured audio is still compressed, requiring developers to analyze and decode. A video in YUY2 format is converted to RGB format and then saved as a BMP file. The BMP file has obvious color difference with the original image The problem may be caused by improper algorithm selection. There are two standard 8-bit YUV formats: BT601 and BT709. Each standard has two quantization ranges: Limited and Full. So there will be four pair-wise cases, among which the transformation formula is different. It is recommended that you check which combination your acquired images belong to and apply the appropriate algorithm. How can I compile Java examples in SDKv3? In Java, the function in SDKv3 can only be invoked by a Java program through JNI packages, so you need to use VS compiler LibMWCaptureJni project first to generate "LibMWCaptureJnid.dl/LibMWCaptureJni.dll" file, and then compile Java examples. Java examples need to load the "jawt.dll" dynamic link library at run time and make sure the file can be properly searched at run time. Does SDKv3 support C# WPF applications? Currently, the image rendering interface in SDKv3 only supports CSharp Windows Form applications, not WPF and Universal applications. Can I use Magewell’s SDK to overlay text or images on video that is output from Pro Capture SDI's loop-through interface? OSD is not supported for Pro Capture SDI loop-through output. Do Pro Capture cards support OpenCV or Python? Yes.

Use the driver panel of capture card to view the PCIe bandwidth

Call the driver panel of capture card. Enter the Info tab page to view the PCIe speed and PCIe width.

Can't install Pro Capture driver on Dell XPS 8930

Dell XPS 8930 is incompatible with Magewell's V1.3.0.3825 driver for Windows 10. To solve the problem, please install the 1.0.2 version of BIOS.

Do Magewell HDMI capture devices support CEC, HDR, or Camera Link?

Not support CEC. Pro Capture HDMI 4K Plus, Pro Capture HDMI 4K Plus LT, Pro Capture Dual HDMI 4K Plus LT and Pro Capture AIO 4K Plus support HDR. (only HDR10 standard). Not support Camera Link.

How to set the Visca UDP protocol of PTZ camera

Pro Convert device supports control of the network camera via the Visca UDP protocol, without the need to use a PTZ control line to connect the Pro Convert device to the PTZ camera. Steps are as follows: Log in to the Pro Convert Web UI. In the PTZ tab page, set the following parameters: Protocol: Visca UDP IP Address: The IP address of your camera Port: Your camera's Visca protocol network port (check the user manual of the camera or contact the manufacturer to get it) Visca UDP message header: Turn this option on if the transport protocol your camera (e.g. SONY camera) uses the Visca UDP header. Click apply to make the above configurations take effect.

How to change the advanced settings of PTZ camera

Pro Convert device supports advanced control of the PTZ camera. Step are as follows: Log in to the Pro Convert Web UI. In the PTZ tab page, set Protocol to Visca or Visca UDP. Expand Advanced Visca Parameters at the bottom of the page. Check the user manual of the camera or contact the manufacturer for detailed control parameters of the camera. Convert the values of camera parameters to decimal numbers and fill them in the corresponding parameter options. Click apply to make the above configurations take effect.

How to fix an unstable Wi-Fi connection

Check whether there is wireless interference introduced by other APs. If the Wi-Fi networks around are using the same frequency channel they might be causing the interference as well. Use the proper Wi-Fi tools, such as Wi-Fi Analyzer, to analyze the quality of wireless channels. Put Ultra Stream and your smart phone close to the same AP and compare the Wi-Fi signal strength on both ends. If both ends have weak signal strength, a different channel or AP which provides good connection should be switched to. Otherwise, go to the next step. Change your modem to the 5G (802.11ac) frequency when the Ultra Stream is placed close to the AP. Use the Sub Stream for APP preview. If none of the above helps, please contact us for return-to-factory service.