Interesting π€ idea. I will ask them if they've looked into it. Thanks! -Brian
On Wed, Jul 27, 2022 at 2:35 PM Trampas Stern <[email protected]> wrote: > It might be better to look and see if you can capture the frame buffer and > send over the network, think remote desktop. I have not looked at the > SmartTV API but it might include this capability for app developers. > > Trampas > > On Wed, Jul 27, 2022 at 2:29 PM Brian Chamberlain via TriEmbed < > [email protected]> wrote: > >> Hi Scott, Thanks for the advice and suggestions (and very cool >> diagram BTW). This client makes media/software for smartTVs. So part of >> their development process is that they need to test their content/software >> on actual TVs. They have a solution for testing Roku's, AppleTV, game >> consoles, etc...since those all have HDMI outputs. But there's a whole list >> of major brand TV's and models they want to be able to test in a >> similar/consistent way. Their engineering staff is remote so I'm guessing >> they'd want to rack and stack these modded TV's somewhere so they can >> access the output of the TV via a video stream, controlled by some kind of >> IR blaster interface... if that helps paint a better picture. >> >> So, at this point I'm just putting together the SOW (which would include >> some exploratory hands-on TV teardowns and investigation) and requirements >> gathering. My gut says that there's probably not some silver bullet >> solution. Each of these TV's (and maybe even different revs of the same >> models) will have very different internals. So every model/brand would be >> it's own research project. But perhaps some have debug/diagnostic outputs >> somewhere on the main board? Though that really feels like wishful >> thinking. But I am also hoping there's some other entirely sane approach to >> this. >> >> -Brian >> >> >> On Wed, Jul 27, 2022 at 12:08 PM Scott Hall <[email protected]> >> wrote: >> >>> Brian, >>> This is done all the time in companies, churches and schools for >>> "electronic signage". First, with the chipsets used, the rendering of the >>> video signals is not in a form that can be 'tapped off' to be able to make >>> a transmittable signal, unless the motherboard of the TV is already doing >>> that for its own features -- in other words already creating an HDMI output >>> port. Essentially what I do when consulting with places is to get an >>> external Roku device and forgo the internal "smart" works, then use an HDMI >>> distributing amplifier. If you have more than one signal source, like >>> cable, Roku, DVD, etc, then an external HDMI switch is used. You chain the >>> devices together kind of like this: >>> >>> Cable ββββ βββββ TV or Monitor >>> β βββββββ ββββββββ£ >>> DVR/Cameraββββ’4-to-1β β1-to-4βββββ TV or Monitor >>> β HDMI ββββββ’ Dist.β >>> DVD Playerββββ’Switchβ β Amp βββββ TV or Monitor >>> β βββββββ ββββββββ£ >>> Streaming ββββ βββββ TV or Monitor >>> Device >>> >>> a sample link for a 4-to-1 HDMI switch: >>> https://smile.amazon.com/dp/B00OJMAXZ2/ (really a 4-to-2 switch, as it >>> has 2 outputs) >>> >>> a sample link to a 1-to-4 HDMI distribution amp: >>> https://smile.amazon.com/dp/B0180PPTNO/ >>> >>> link to a review of switches and dist. amps: >>> https://www.gearhungry.com/best-hdmi-splitter/ >>> >>> - sgh >>> >>> On Wed, Jul 27, 2022 at 10:50 AM Brian Chamberlain via TriEmbed < >>> [email protected]> wrote: >>> >>>> Hi all, Just wondering if anyone here has any TV hardware reverse >>>> engineering experience? I have a client asking if I can pull a usable HDMI >>>> signal off of βSmartTVsβ. Basically, they want a mirror of what is on the >>>> display panel (menus and all). Not just one TV but multiple brands/models. >>>> >>>> Their current solution is pointing a web cam at the TV from a distance. >>>> Theyβre looking for something more scalable (less space requirements, >>>> easier setup, more TV brand selection, etc). >>>> >>>> My answer to them at this is, βmaybe and Iβll look into itβ. They seem >>>> willing to pay me to do the investigation. Which sounds like fun but I am >>>> looking to talk with anyone who might have any experience with this or >>>> could point me in the right direction. >>>> >>>> Thanks! >>>> -- >>>> -Brian >>>> _______________________________________________ >>>> Triangle, NC Embedded Interest Group mailing list >>>> >>>> To post message: [email protected] >>>> List info: >>>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org >>>> TriEmbed web site: https://TriEmbed.org >>>> To unsubscribe, click link and send a blank message: mailto: >>>> [email protected]?subject=unsubscribe >>>> Searchable email archive available at >>>> https://www.mail-archive.com/[email protected]/ >>>> >>>> >>> >>> -- >>> Scott G. Hall >>> Raleigh, NC, USA >>> [email protected] >>> *Although kindness is rarely a job, no matter what you do it's always an >>> option.* >>> >> _______________________________________________ >> Triangle, NC Embedded Interest Group mailing list >> >> To post message: [email protected] >> List info: >> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org >> TriEmbed web site: https://TriEmbed.org >> To unsubscribe, click link and send a blank message: mailto: >> [email protected]?subject=unsubscribe >> Searchable email archive available at >> https://www.mail-archive.com/[email protected]/ >> >>
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