Alternatives

Steve Cookson edited this page Jan 10, 2015 · 21 revisions

This page lists various alternatives to the HDMI2USB device and their pro/cons.

USB Based Capture Devices

Magewell XI100DUSB-HDMI

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

http://www.magewell.com/hardware/usb3-0-capture-dongle/xi100dusb-hdmi/xi100dusb-hdmi_features.html?lang=en

Evaluation

Pros

  • 1080p@60Hz - Full frame rate capture
  • Appears as a UVC webcam, no driver should be needed
  • Price range is under $USD400

Cons

  • Not a pass-through device, needs a splitter in front of it.

Specifications

  • Video capture resolution: 1080p@60Hz
  • Interface Speed: Theoretical 5.0Gbit/s, Actual 3.2 Gbit/s
  • Input cable length: ???
  • Output cable length: N/A

Where to buy

Blackmagic Design Intensity Shuttle

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

Specifications

  • Video capture resolution: 1080p@60Hz
  • Format: H.264
  • HDCP Support: ???
  • Interface Speed: Theoretical 5.0Gbit/s, Actual 3.2 Gbit/s
  • Input cable length: ???
  • Output cable length: N/A

Evaluation

Pros

  • 1080p@60Hz - Full frame rate capture

Cons

  • Needs proprietary drivers, no Linux support.

Buy

StarTech USB2HDCAP (USB 2.0 HD PVR Gaming and Video Capture Device – 1080p HDMI / Component)

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

http://www.startech.com/AV/Converters/Audio/USB-2-HD-PVR-Gaming-and-Video-Capture-Device-1080p-HDMI-Component~USB2HDCAP

Evaluation

Pros

  • HDMI pass-through
  • Also supports component video for older pro hardware
  • USB powered - no external power supply needed

Cons

  • No support for HDCP encrypted sources

Specifications

  • Video capture resolution: 1080i/p. Framerate should be okay due to hardware MPEG-4/H264 encoding
  • USB 2.0 interface

Where to buy

Device in development by Auvidea ("Raspberry Pi HDMI in, 2nd Generation" (product numbers 36079 and 38082))

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

http://www.auvidea.com/index.php/theme-styles/2013-06-22-21-23-34/raspberry-pi-hdmi-in

Started as kickstarter campaign (https://www.kickstarter.com/projects/1419380698/connect-your-hd-camcorder-to-your-raspberry-pi) to interface HDMI video to the RaspberryPi board via its MIPI/CSI interface but was stopped due to technical reasons. Now the plan B is to use a hardware H264 encoder and interface it to the Pi via USB. A "standalone" version is also planned to use it as HDMI to USB converter with H264 encoding.

Evaluation

Pros

  • Will be supported by Linux
  • HDMI pass-through (not in all versions?)
  • USB powered - no external power supply needed

Cons

  • No support for HDCP encrypted sources
  • Not yet available and might be expensive then

Ethernet Capture Devices

Lenkeng HDMI over IP extender

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

http://www.lenkeng.biz/ProductDetails_HDMI+EXTENDER_61.html

There's a HDMI extender device, Lenkeng LKV373, which captures HDMI, and transcodes the video into MJPEG and outputs the stream over multicast UDP.

They're designed to run as a pair of sender + receiver, but someone has reverse engineered the wire protocol, and written some notes on reverse engineering the units:

http://danman.eu/blog/?p=110

Evaluation

Pros

  • Uses Ethernet rather than USB, meaning no capture PC needed at Podium
  • Cheap! Cheap! Cheap!

Cons

  • Uses broken IP implementation (size is wrong!)
  • No designed for this usage, internals could change any time.
  • Does 1080p at ~18fps

Specifications

  • Video capture resolution: ???
  • Format: MJPEG
  • HDCP Support: Yes
  • Speed: Ethernet 100Mbps
  • Input cable length: ≤5m (AWG26 HDMI1.3 standard cable)
  • Output cable length: ≤5m (AWG26 HDMI1.3 standard cable)

More info

In the comments there seems to be notes about a TTL serial interface which allows control of encoder parameters. It streams 1080p video at about 18fps -- more than adequate for capturing slides.

In a real-world setup, you would still use the receiver hardware, in order to output the video to a projector. As they output to ethernet, there would be no need to have the "projector laptop" as in a typical capture scenario, or that would be needed with HDMI2USB. With some gstreamer trickery, this could appear as a source.

I can see these on places like Aliexpress for about 80 USD in lots of 1 (of both sender + receiver). I haven't yet ordered one but it looks promising.

http://www.lenkeng.biz/ProductDetails_HDMI+EXTENDER_61.html

Which is this device: http://www.ebay.com.au/itm/2013-New-HDMI-TCP-IP-Extender-100-120-meters-Over-Cat5-Cat6-1080P-for-HD-STB-DV-/131034362578?pt=AU_Television_Accessories&hash=item1e8241b2d2&_uhb=1

Auvidea E110: H.264 HDMI encoder and decoder

WARNING: This device has not been tested by Tim Videos team, all information is based on manufacturer specifications.

http://www.auvidea.com/index.php/theme-styles/2013-06-22-21-23-36/encoder-e110

Evaluation

Pros

  • Can be used as capture or as playback device
  • Can also record to USB mass storage
  • Can be extended to stream via WiFi

Specifications

  • Video resolution: 720p50/60, 1080i50/60 or 1080p24/25/30
  • Format: H264, RTSP
  • HDCP Support: No
  • Extensive specs on product's homepage

Where to buy

Epiphan VGADVI Broadcaster

http://www.epiphan.com/products/broadcasting/vgadvi-broadcaster/

Price: >$1000

PCI-Express Capture Devices

maybe copy content from https://c3voc.de/wiki/shopping:framegrabber-alternativen

ExpressCard Devices

VGA Capture Devices

TwinPact100

grabor

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