TV pass through PC without recording, etc

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jmkthw

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May 19, 2014
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Feeling stupid. (Twice actually -- once for not being able to figure out an easy way to do this and the other for feeling like I must be the only person on the planet who wants to do this.)

I have an old w7 box, conveniently already with an HDMI out, that sits on an out-off-the-way shelf only acting as a disc server for my house. What I'd like to do is stick it under the TV and simply pass a TV picture into it (preferably HDMI out of my cable box/tivo) that I can put in the corner of a desktop screen displayed on the TV (a la PiP - but I don't have a TV capable of simultaneous multii-input display and i'm NOT interested in buying one right now). I am NOT interested in any extra tuner/capture/DVR/Media Center stuff. When I want plain TV, I will just full-screen the TV window and it will look like a normal TV. But if I want to watch something off the web, I can just stream it to the TV, full-screen or windowed (but with a way-better NetFlix/Hulu/whatever interface and not having to worry about if X site has an app for Y streamer/player, etc.).

(This whole thing is kind of the concept GoogleTV [and their stream boxes] was based on -- and yes I know that has pretty much flopped. But I think that might be as much due to execution as concept.)

Bottom line is I'm just basically trying to make something like a smart TV that's actually mostly a PC I will be working at without having to deal with a bunch of REALLY DUMB "Smart TV" stuff. (Yes, ultimately I could turn it into a DLNA server/client or capture/re-stream or whatever, but that's not really what I'm interested in right now.) BTW, i will NOT need to pass thru anything 3D.

Any input device I find for the PC seems to revolve around tuner/capture.

I would really like to stick with HDMI right now so that I can put a splitter behind and go through my cable box either directly into one TV input or through the PC into another TV input. This allows me to switch inputs on the TV and bypass the PC as well which I sometimes will be using by VNC from elsewhere while others are watching the TV.

I really appreciate peoples help. However, if I'm looking for a different way to accomplish things, I will try opening a different thread. For the moment, could you please focus on accomplishing EXACTLY what I have laid out -- i.e. passing a picture (AND audio) into a window on a 7 desktop "unmolested" without involving tuner/capture (i.e. likely transcoding/spooling/saving).

Thanks much
 

jmkthw

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May 19, 2014
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I thought I was pretty clear. I am looking for a device but do not want tuning/capture, just something which will accept HDMI input - audio AND video - and put it in a window on the desktop. Nothing else.
 

USAFRet

Titan
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Reading through all that, it looked like you did not want to buy anything, particularly 'tuner/capture'.
"Any input device I find for the PC seems to revolve around tuner/capture."

That's what it is....a tuner or capture device to input a video (and optionally audio) signal to a PC.

There are multiple PCI-E adapters that do that.
 

jmkthw

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May 19, 2014
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I really am sorry. I cannot figure out why I'm not making this clear. I want an input device. HDMI input is no different than a very complicated version of a 3.5mm microphone jack (kind of like 20 of those bundled together). That microphone jack simply facilitates an analog to digital conversion and passes the result, via device driver, into the operating system The OS can then simply pass it back out to a speaker jack without involving much of anything else. It doesn't need to understand different FM radio stations/frequencies or how to convert the signal into mp3 or FLAC. TV tuner cards have to be able to separate out all the digital/analog channels on the input signal and capture devices are usually full of hardware designed to accelerate transcoding of a signal. These are all capabilities I do not need and make these devices more expensive and usually less stable. I am looking for the functional equivalent of a 3.5mm jack which has a driver/software capable of simply decoding and passing that one collection of signals into a picture and sound on the desktop

So yes, I want a device. I don't need it to tune among multiple channels like a tuner card, but just the single signal on an HDMI cable and I do not need it to facilitate transcoing/storing. I want the one simple function I am asking for and nothing more. I am trying to avoid buying complications and headaches involved in capabilities I am not interested in.

That's my last, best shot at making this clearer.
 
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