digital video

4 Articles

Digital Video From The Amiga’s DB23 Socket

February 19, 2023 by 5 Comments

Back in the days of 16-bit home computers, the one to have if your interests extended to graphics was the Commodore Amiga. It had high resolutions for the time in an impressive number of colours, and thanks to its unique video circuitry, it could produce genlocked broadcast-quality video. Here in 2023 though, it’s all a little analogue. What’s needed is digital video, and in that, [c0pperdragon] has our backs with the latest in a line of Amiga video hacks. This one takes the 12-bit parallel digital colour that would normally go to the Amiga’s DAC, and brings it out into the world through rarely-used pins on the 23-pin video connector.

This follows on from a previous [c0pperdragon] project in which a Raspberry Pi Zero was used to transform the digital video into HDMI. This isn’t a hack for the faint-hearted though, as it involves extensive modification of your treasured Amiga board.

It is of course perfectly possible to generate HDMI from an Amiga by using an external converter box from the analogue video output, of the type which can be bought for a few dollars from online vendors. What this type of hack gives over the cheap approach is low latency, something highly prized by gamers. We’re not sure we’re ready to start hacking apart our Amigas, but we can see the appeal for some enthusiasts.

An Open-Source HDMI Capture Card

October 14, 2022 by 37 Comments

[YuzukiHD] has provided files for anyone that wishes to build their own HDMI capture card at home. The design is known as the Yuzuki Loop Out HDMI Capture Card PRO, or YuzukiLOHCC PRO for short.

The build is based on the MS2130, a HD video and audio capture chip that’s compatible with USB 3.2 Gen 1. We’re pretty sure that’s now called USB 3.2 Gen 1×1, and that standard is capable of transfers at up to 5 Gbps. Thus, the chip can support HDMI at up to 4K resolution at 60 Hz depending on the exact signals being passed down the line. It’s compatible with YUV422 & MJPEG modes and can be used with software like OBS Studio and FFmpeg. The board itself is relatively simple. It features an HDMI In port, an HDMI Out port, and a USB-C port for hooking up to a computer for capture.

HDMI capture cards can be expensive and fussy things, so you may find it pays to roll your own. Plus, being open sourced under the CERN Open Hardware License V2 means that you can make changes to suit your own use case if you so desire.

We’ve seen some other hilarious video capture tricks over the years, such as a convoluted rig that uses a SNES to turn a Game Boy Camera into a usable webcam. If you’ve got any such madcap hacks brewing up in your lab, be sure to let us know!

That Retro Video Look, Without The Tapes

March 7, 2020 by 11 Comments

We’re lucky to live in an age of rapid technological advancement, lucky in more ways than one because as well as receiving a constant supply of new things, we have the benefit of the older tech that once we lusted over, at knock-down prices. [Luke Baker] spent his youth as a skateboarder, and the cameras of desire in that community were the high-end MiniDV models. They may not have high definition but their output has a Millennial aesthetic that captures the period, so he’s brought one into the 2020s by adding a digital SD card recorder designed for a multirotor to it.

On the face of it this is a pretty straightforward job of coupling an off-the-shelf recorder to a battery and the camera’s analogue output terminals. But the resulting spaghetti on what is supposed to be a portable device is hardly attractive, so he’s created an all-in-one 3D-printed enclosure that is attached to the camera’s handle with a set of cable ties. It’s shaped to fit the recorder and has a sliding lid over the battery compartment, and he’s added a handy on-off switch. Whether or not he takes it to the skate park in a bid to roll back the decades, as you can see int he video below the break it’s a well-executed piece of work that should serve to remind that there’s still life in some of this easily-available old tech if you’re prepared for a bit of lateral thinking.

This isn’t the first vintage video hack we’ve seen, back in 2016 we were treated to the grainy period feel of a vintage 8mm camera through the eye of a Raspberry Pi.

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Building A Snorricam

July 14, 2009 by 33 Comments

[youtube=http://www.youtube.com/watch?v=CoZOe3gOkco]

With digital cameras getting cheaper and higher quality, we find ourselves more capable of using them to make videos. A Snorricam can be a very useful tool if you like the effect it produces. This specific design allows for adjustment of the height and angle of the camera allowing for even more possibillities. As you can see in the video after the break, it seems to work pretty well. It might be nice to add some kind of vibration absorbtion though. Anyone got any ideas on that?

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