Question about HDMI receiver chipsets  - Page 1
Forum section: electronics / projects

author: Miyuki
author_rank: Frequent Contributor
timestamp: January 22, 2021, 08:06:50 pm
content: Hi,I have a quick question.Do I need any software or NDA keys to use common HDMI receivers? Or are they just a simple standalone device containing everything? Just place them on board and connect the cable to get my RGB data?I need it to process data from the camera with just HDMI output. And if I want to use something like ADV7611 or any similar device.

author: S. Petrukhin
author_rank: Super Contributor
timestamp: January 23, 2021, 02:46:35 am
content: Quote from: blueskull on January 23, 2021, 02:30:57 amAD refused to sell it to me...And which CHIP outputs parallel data? ADV7611-serial output.

author: S. Petrukhin
author_rank: Super Contributor
timestamp: January 23, 2021, 03:08:25 am
content: Quote from: blueskull on January 23, 2021, 02:54:24 amSee my post with a picture

author: S. Petrukhin
author_rank: Super Contributor
timestamp: January 23, 2021, 03:34:36 am
content: Quote from: blueskull on January 23, 2021, 03:19:52 am

author: NiHaoMike
author_rank: Super Contributor
timestamp: January 23, 2021, 04:03:20 am
content: Quote from: Miyuki on January 22, 2021, 08:06:50 pmIf you're connecting the camera to a PC or embedded Linux system, get a HDMI capture card - some are as cheap as $10 or less. If you're connecting it to a FPGA, a FPGA powerful enough to do decent video processing with would probably be able to handle HDMI input up to 1080p, an alternative is to get one of those cheap LVDS LCD driver boards. Or salvage one from a TV or monitor with a broken LCD although do note the part number of the LCD since that will tell you a lot about the data format it uses.

author: Miyuki
author_rank: Frequent Contributor
timestamp: January 31, 2021, 11:56:30 am
content: Quote from: NiHaoMike on January 23, 2021, 04:03:20 amMost cheap HDMI capture solutions are not 1080p but way worse internallyI might have enough computing power on 15-20$ MPU (they have multiple ARM cores and multimedia coprocessors), FPGA solution looks more expensive

author: NiHaoMike
author_rank: Super Contributor
timestamp: January 31, 2021, 01:05:07 pm
content: Quote from: Miyuki on January 31, 2021, 11:56:30 amOne based on the MS2109 chip is the one to get.https://www.cnx-software.com/2020/06/05/11-hdmi-to-usb-2-0-video-capture-dongle-supports-up-to-1080p30-grabbing/https://twitter.com/Ascii211/status/1268631069051453448

author: Miyuki
author_rank: Frequent Contributor
timestamp: January 31, 2021, 02:50:57 pm
content: Quote from: NiHaoMike on January 31, 2021, 01:05:07 pmIn detailed reviews, they show it won't capture full horizontal resolutionAnd also compression is rather high so have artifacts

author: Yansi
author_rank: Super Contributor
timestamp: January 31, 2021, 03:28:04 pm
content: Regarding HDMI/3G-SDI capture dongles, I have been pleased with this one:https://www.aliexpress.com/item/4001090047671.html//Uses that exact ADV7611 on the HDMI input////EDIT: And btw, as far as I understand that capture dongle, it blasts the full uncompressed image through the USB3. No fancy compression (there is no hardware for that anyway in the dongle). Doubt the LFE3 cheap FPGA is anywhere close to capable of supporting realtime video compression in 1080p60.