PDA

View Full Version : Extracted streams appear choppy



pgudge
12-28-2004, 12:31 PM
I am using TyTools 9r16 to extract recorded shows from TiVo to PC.

I can view the streams in mplayer in the .ty format fine, and using TyConver V0.32 convert to mpeg. However on fast moving scenes I get lines on the objects that are moving.

I haven't tried these streams on an XBox or on a DVD player yet, so could it just be the PC that is drawing them badly?

Or is there any known issues with the extraction process?

For the record slow action is perfect, quality is great but if anyone waves their hand or any other fast motion appears then lines appear where the mpeg is breaking I suppose.

Thanks for any info.

p.s. I am now using TyTools9r18 Win32 client, but I have not updated the NowShowing.tcl file on the TiVo, should I do this asap?

Thanks again.

Jamie
12-28-2004, 12:45 PM
For the record slow action is perfect, quality is great but if anyone waves their hand or any other fast motion appears then lines appear where the mpeg is breaking I suppose.Sounds to me like you are seeing the effects of interlacing. Does your video look something like the examples here (http://www.100fps.com/)? That's interlacing. definition (http://en.wikipedia.org/wiki/Interlaced_video) It's up to your viewing program to deinterlace for your progressive scan computer display. Another link (http://neuron2.net/LVG/interlacing.html).

pgudge
12-28-2004, 01:23 PM
Cool, yeah the image above "Not resized and not deinterlaced", is how my videos look on fast moving parts.

So if I intend these videos to be played on an XBox using XBMC and on Standalone DVD players, then I have no need to alter then. But if I want the videos to look ok on the PC I need to deinterlace them?

Thanks for the speedy response.

Jamie
12-28-2004, 01:41 PM
So if I intend these videos to be played on an XBox using XBMC and on Standalone DVD players, then I have no need to alter then. But if I want the videos to look ok on the PC I need to deinterlace them?Your player should deinterlace on the fly as it is playing back the video.

pgudge
12-29-2004, 12:56 PM
Excellent, thanks for the info.

One last thing, When I convert the .ty file to .mpg using any of the converters, no pogram will pull the mpg file in. VirtualDub says there is no video, TMpgEnc just does nothing, but they play in Media Player and other "dumb" media players, so I would have thought they would be ok.

Can you recommend anything.

I want to make them all into mpeg4 avi files, any codec will do as they will 99% be played back on XBMC (XBox)