Capturing and recording only 1 image/second...with WHAT? :)

[SliceMan]

Hi,

Actually, I need to capture a TV video signal (24h/day) and record only 1 image/second of that signal... Yes, I know, It s weird but...!!!

Do you know with which software it is possible? Premiere?

Thanks for your cooperation...

See ya,
SM

[redwudz]

You might try VirtualDub. I know you can set the playback as low as .2fps, because I just tried it. Unfortunately, I don't have a video source to hook up at the moment or a capture card on this computer, so I can't try it at very low fps. Any capture program where you can set the fps to a very low number might work.

For surveillance, most PC setups use a video card designed for that purpose, with four or more camera inputs and a switcher to change camera views. But they can be pricey.

And welcome to our forums.

[CogoSWSDS]

Sliceman,
I know this isn't quite what you want, but...

You might try doing a time-lapse recording on your camera, if it supports it. For example, my old JVC VHS-C camera could record 1/4 sec. of video every 15 sec. This would put an hour of elapsed time on a minute of tape. My current Digital8 from Sony can record 1/2 sec. of video every 30 sec., which again, puts an hour of elapsed time on a minute of tape.

Of course shorter recordings at closer intervals result in smoother time lapse, so actually my old VHS-C made smoother time-lapse recordings than my new Digital8.

AVISynth has a SelectEvery() function which could take such a time-lapse recording and whittle it down to one frame (or two, however you wanted it) from each interval. You could then do something like this:

avisource("C:\Path\To\Your\File.avi")
selectevery(15)

This would at least get you close to what you want, if not exactly.

HTH,
CogoSWSDS

[CogoSWSDS]

Redwudz, you beat me to it, however... Virtual Dub (at least the version I have) doesn't quite go down to 1 fps on a capture. It does go down to 5 fps, which is pretty close. You could then use the selectevery() method I mentioned above to select only 1 frame out of every 5 (post-capture), which would be 1 frame/second!

CogoSWSDS

[SliceMan]

Thanks for your answer but I need to record 24h/day a TV signal... So I cannot use a camera.. but some kind of capture software

To be continued I hope
SM

[CogoSWSDS]

Sliceman,

Virtual Dub is capture software that will get you pretty close. As I said above, the version I have won't slow all the way down to 1 fps, but it will go all the way down to 5 fps. Not exactly what you want but pretty close. No camera needed.

CogoSWSDS

[JohnnyMalaria]

Hi,

Actually, I need to capture a TV video signal (24h/day) and record only 1 image/second of that signal... Yes, I know, It s weird but...!!!

Do you know with which software it is possible? Premiere?

Thanks for your cooperation...

See ya,
SM

You haven't specified how the TV signal is to be captured - e.g., is it a TV tuner card for a PC or an external USB video capture device.

If you are going to use a DV camcorder (i.e., connect the TV signal to the analog inputs on the camcorder and take the FireWire output), you can use our Enosoft DV Processor. It has a timelapse recording function.

[The_Doman]

With the AVI_IO capture program you can time-lapse capture with 1 frame a second (disable the audio first)

If you are using a DV source Scenalyzer LIVE Live can also do time-lapse capturing.

[edDV]

If the source is a DV stream, WinDV will do time lapse as well.