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Re: TV tuner/capture card for PC

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Harry Putnam wrote:

> 
> Thanks for the great input.
> 
> To both of you:
> 
> I didn't do much of a job in OP explaining things.
> 
> I kind of assumed it would work something like this:
> My directv connections to tv work thru the boxes dtv supply.
> 
> I hardly ever actually watch tv, so paid no attention when dtv hooked
> things up, but looking at the tv my wife watches I see:
> 
> a coax coming from wall (which must go to disk thing on the roof)
> Then from the dtv box runs a hdmi connector to tv
> 
> So anyway, I had assumed dtv would give us another box and whatever
> way it is connected from there to tv would connect to whatever I get
> for my mobo... or maybe its all usb now.
> 
> Hence the notion that I would need a tv tuner... that is, a tiny tv
> with no screen... and the computer monitor would do the rest.
> 
> Not considering for a moment how I would record it or edit it.
> 
> I'm probably clear off the mark here, but if not, is that roughly how
> this would be done?

The notion of being over your head might not be
far off the mark. Look at the hell these people went through
just to get the TV part working! These are people just
trying to get a TV working with DirecTV.

https://forums.att.com/t5/DIRECTV-DVR-Receivers/Hdmi/td-p/5050599

I'd start by taking a look at the back of the DirecTV box,
get a model number off it, plus note down all the I/O connectors.
Recording an HDMI connector protected with HDCP isn't all
that practical, but if the box still has YPrPb you may
be able to record a 720p signal (1280 x 720 @ 60Hz progressive).
The reason they put a low resolution signal on there is
to prevent piracy. But 720p is still miles better than
Composite and S-Video, and might be OK for movie content.

The best way to record and serve TV is with a dedicated computer.

Locating the computer (even a small one) next to the DirecTV
makes hosting easier. With enough trouble, you can make
the computer "headless", and not have a monitor connected
to it while it is running. (The computer will "think" it
has a monitor, when there isn't one.)

Remoting the YPbPr signals instead, would depend on how many feet the
intended computer is from that DirecTV box. I bet you could
run component signals a good many feet using coax, but
the coax wires will look ugly. Electrically, it's probably
better if a ground-referenced desktop computer, uses the same
power strip as the DirecTV box and other stuff.

Once a TV recording is in some MPEG format, it doesn't
take a lot of Wifi bandwidth to send them. So if the
TV content is properly captured in a regular format like
that, even a crappy Wifi would probably work to allow
playback in some other room. The recording device
then functions as a "streaming server".

I think my TV Tuner card, basically just records
the packets coming over the air (digital TV sends packets).
So no "compression" step is required, and it doesn't take
a lot of CPU. And even that, burns up perhaps 7GB/hour
storage space. About 2MB/sec or so. I haven't done any
recordings recently, so don't have a sample file sitting
on the computer.

*******

So collect some more particulars, give some idea whether
a computer can be placed near the TV or not, and maybe
the picture will be a bit clearer.

    Paul

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Thread

TV tuner/capture card for PC Harry Putnam <reader@newsguy.com> - 2017-11-08 17:50 -0500
  Re: TV tuner/capture card for PC Paul <nospam@needed.invalid> - 2017-11-09 05:14 -0500
    Re: TV tuner/capture card for PC Harry Putnam <reader@newsguy.com> - 2018-02-12 09:08 -0500
      Re: TV tuner/capture card for PC Paul <nospam@needed.invalid> - 2018-02-12 10:47 -0500
      Re: TV tuner/capture card for PC not@telling.you.invalid (Computer Nerd Kev) - 2018-02-12 22:01 +0000
  Re: TV tuner/capture card for PC not@telling.you.invalid (Computer Nerd Kev) - 2017-11-10 22:17 +0000

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