View Full Version : 576i to 576p
alexh110
8th May 2008, 00:49
Am using a Virtual Dub deinterlacing filter to convert an avi (captured from a PAL camcorder) from 576i to 576p, and wondered what type of cable I need to view the resulting file at full 576p resolution on my HD-ready TV set?
At present I'm using an SVideo cable to connect my AGP card to my TV; but it also has a DVI-I output.
The TV has RGB and HDMI inputs, so I am I correct in thinking that I will need to use a DVI-to-HDMI cable, or an SVGA lead to get 576p resolution? Or is the SVideo lead capable of carrying 576p?
Also what is the optimum resolution setting for my computer's monitor if I want to view 576p?
Many thanks in advance for any help.
Blue_MiSfit
8th May 2008, 06:56
S-Video and Composite cannot pass progressive video.
If you want to view progressive footage on your HDTV, you will have to connect it with component (red, green, and blue plugs) or the HDMI input.
Probably the easiest thing to do is use a DVI -> HDMI cable. These are cheap, and should do a nice job. Set your PC to output whatever your HDTV's native resolution is, and play the video.
The optimum resolution on your monitor depends. If it's a CRT, then a lower resolution is probably optimal. If it's an LCD, then its native resolution is always the way to go.
~MiSfit
alexh110
8th May 2008, 16:49
Thanks for the advice.
Would I be right in thinking that plugging the SVGA lead into my HDTV, instead of my computer monitor, will also do the trick (since the HDTV has an SVGA input)?
If so, does HDMI have any advantages over SVGA?
Blue_MiSfit
12th May 2008, 21:53
It should work, but HDTVs generally have pretty bad VGA inputs. They often only accept input at certain resolutions (which may be less than what the TV's native resolution)
HDMI is nice in that it assumes one of several "standard" formats, be it 720p, 1080i, or 1080p etc... It's also digital, which can look better in some cases, but not always. Newer HDTVs seem to designate HDMI as their primary input, so I would use it for that reason alone in most cases.
~MiSfit
dat720
15th May 2008, 10:07
Blue_MiSfit hit the nail on the head, the other thing to consider is HDTV's with VGA in usually only support 4:3 ratio resolutions ie: 800x600, 1024x768, 1280x1024, i don't think i have ever seen a 4:3 HDTV
HDMI or Component is the best way to go.
Zemph
15th May 2008, 12:37
Blue_MiSfit, cant help but say, but yes you can capture feed in progressive, though Composite. Often when i cap, i get alot of PAL progressives of the native format.
dat720
15th May 2008, 21:43
Blue_MiSfit, cant help but say, but yes you can capture feed in progressive, though Composite. Often when i cap, i get alot of PAL progressives of the native format.
He didn't say you could'nt capture via composite, and infact that wasn't even the question, the question was how to view 576p material on a HDTV........ a TV cannot playback anything more than 576i via a composite cable
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