Talk:Component video

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Contents 1 1080p? 2 quick question 3 -- 4 sync-on-green 5 what is HD/CS and VD? 6 Progressive output and component video outputs 7 VGA-BNC to Component 8 Cable confusion 9 EIA/TIA-343 vs. SMPTE-170M 10 B-Y R-Y Y 11 British or American English? 12 Audio? 13 POV 14 Better clarity with DVI? 15 HDCP 16 Component video *cables* and what they do

[edit] 1080p?

Why was 1080p removed from compatible video resolutions? Component cables support 1080p, some HDTVs allow 1080p over component, but some do not. ~Michael

Are you sure? The only thing you can get true (native) 1080p output from is Blueray and HDDVD and both of those players require HDMI cables to take advantage of the 1080p resolution. Perhaps there are some dated DVD players that upscale and output in 1080p over composite, but I wouldn't believe that until I see it. —The preceding unsigned comment was added by 130.63.18.177 (talk • contribs).

XBox 360 can do 1080p over component —Preceding unsigned comment added by 74.57.235.59 (talk) 00:11, 17 October 2007 (UTC)

[edit] quick question

Can one use regular composite audio/video RCA cables (yellow/red/white) to carry the RGB component video stream, or are the special RGB RCA cables required? Emfraser 17:20, 6 September 2005 (UTC)Stuff

I think this question should be answered in the article. It would be useful to compare the resistance and other properties in the cables with S-video, etc. Wnissen 14:04, 6 October 2005 (UTC)

Yes, you can.

Though strictly true, the signas will in fact 'drag' in the cables due to the high shunt capacitance and (to a lesser extent) higher series inductance. For the best video quality, you should use only high quality cables with a decent cross sectional area.

I just did and then after the fact went searching and arrived at this page. Hackwrench 06:12, 3 March 2007 (UTC)

[edit] --

This page states that SCART uses RGB component signal, while the SCART page says that component is not supported. What's correct? Mcpusc 09:31, 28 Dec 2004 (UTC)

The SCART page uses the term "component video" in the sense of the third paragraph in this article.

Very cheap SCART leads usually don't support component RGB, the same with cheap devices, but it does support it. I'm watching component RGB off an extremely cheap Comag satellite box with a good SCART lead. --Kiand 18:39, 17 January 2006 (UTC)

RGB is in the SCART standard, YPrPb is not, but some devices support the non-standard sending of YPrPb down scart cables. Generally, RGB is called "RGB", and YPrPb is called "component".146.87.193.4 17:08, 9 January 2007 (UTC)

[edit] sync-on-green

"it is more usual to embed the sync signal in the green or Y component. The latter is known as sync-on-green."

Dit it mean "the former"? --Hsugawar 16:33, 10 Jun 2005 (UTC)

Yes. Thank you for pointing that out. --Heron 19:37, 10 Jun 2005 (UTC)

Most video systems with a Y (luminance) channel, such as YPbPr and S-Video, put their sync signals on this channel. This is very common. Systems which use RGB color channels usually have one (such as in SCART) or two (such as in VGA) channels dedicated to sync alone. Embedding the sync signals in the green channel (Sync-on-Green) is far less common. --AtomicLiberator 18:52, 31 May 2007 (UTC)

[edit] what is HD/CS and VD?

I'm in the process of wiring a system to convert a video signal from VGA (from a PC) to component using a single VGA-to-component cable (such as this one), and I've found that the process requires five different signals: the normal R, G, and B cables that I've always used when working with component, and also two that are marked "HD/CS" and "VD." Without those cables plugged into the monitor, I lose sync. I assume that they both are carrying two different and necessary components of the sync, but I don't know what exactly they are, or why the sync isn't being transmitted on a single channel. Is anyone familiar with this technology? What do HD/CS and VD do, exactly? I assume the H and V stand for horizontal and vertical (and the D for Delay?), but beyond that I'm unable to figure out what they are.

[edit] Progressive output and component video outputs

"The settings on many DVD players and TVs may require that you designate the type of input/output being used, or the image may not be properly displayed. Progressive output will not be properly displayed through component video outputs."

Why not? Isn´t component video the only "mainstream" way to have Progressive output? JeffersonRyan 06:33, 26 July 2006 (UTC)

[edit] VGA-BNC to Component

For any consumer video equipment which has VGA out (d-sub 15pin), and with a VGA-BNC cable, can I simply use the RGB from BNC to act as the RGB in component? Of course adaptors are used for BNC plug to RCA plug. —The preceding unsigned comment was added by 144.214.54.102 (talk • contribs) .

Two problems: If you're referring to that flavor of "Component Video" that comes out of, say, a DVD player, then the components aren't Red, Blue, and Green (which are used by the VGA signals). Instead, two are "difference" signals (see YPbPr). Second problem: The VGA video may not include the sync (synchronization) signals in the video because VGA has completely separate wires for horizontal sync and vertical sync.

Atlant 12:32, 24 August 2006 (UTC)

Most European DVD video players output RGB component video (from the SCART connector) as well as YP_rP_b component from the RCA connectors. Contrary to poular belief, for practical purposes neither has any advantage over the other. YP_rP_b is what comes off the disk, but the display device requires RGB. The former has to be converted to the latter somewhere, and it doesn't really matter where. To be strictly accurate, if the signal has to be transmitted over very long distances, then YP_rP_b will suffer propagation problems because the Y component has a higher bandwidth and will therefore propagate more slowly. 20.133.0.14 10:25, 29 September 2006 (UTC)

[edit] Cable confusion

Can somebody please offer me some advice regarding the best cable-type use? I have a projector (Toshiba tlp-s70) which is now a couple of years old. It has available inputs of monitor - computer(y/pB/pR) - video and S-video - control. Im just about to buy a new DVD player to use with the projector but Im confused which is the best type of video input to use. It would be great to know before I spend out on new cables.

YP_rP_b offers a far greater bandwidth (and hence resolution) than either video (CVBS) or S-video. 20.133.0.14 10:25, 29 September 2006 (UTC)

Thanks, Dave.

RGB to the VGA/computer input would be the absolute best, but no standalone DVD player I know of outputs RGB. Where people confuse Component with RGB is because of electronics companies using red, green and blue RCA jacks for component video.

DVD players and many other devices output RGB over SCART cables, at least in Europe. 146.87.193.4 17:13, 9 January 2007 (UTC)

Is there a 'standard' color scheme for component video connections? —The preceding unsigned comment was added by 67.136.145.237 (talk • contribs).

[edit] EIA/TIA-343 vs. SMPTE-170M

I cannot find anything on EIA-TIA-343. I have SMPTE-170M however. Is there really an EIA/TIA-343?

Thanks,

Nat

[edit] B-Y R-Y Y

That's the markings on the component in/out BNC plugs on the breakout box for a Media 100 Macintosh video editing system I have. —The preceding unsigned comment was added by 67.136.145.237 (talk) 07:43, 5 December 2006 (UTC).

[edit] British or American English?

This article uses both British and American English spellings, it should only use one method of spelling based on the background of the article in question. Which spelling method is to be used? —The preceding unsigned comment was added by Damuna (talk • contribs) 19:50, 5 December 2006 (UTC).

[edit] Audio?

Shouldn't the article say something about the audio cables used with component cables? -IG-64 08:54, 9 January 2007 (UTC)

[edit] POV

This section seems suspect:

RGB has been largely ignored, despite its quality and suitability, as it cannot easily be burdened with Digital Rights Management. RGB was never popular in North America for consumer electronics, as S-video was considered 'good enough'.

Lack of references aside, the language seems slanted with words like "burdened", "ignored", and "good enough". Factually, I believe RGB is falling out of favor because chroma+luma systems deliver the same information with less bandwidth and less formats store RGB natively (because of the "compression" factor), requiring an inefficient format conversion upon display. I don't think DRM has anything to do with RGB's decreased use; RGB appears to be an obsolete encoding. Finally, while the article expresses disdain toward S-Video's comparative adoption, S-Video was never accepted by more than a fringe in the general consumer market. Most jumped from composite to component or HDMI.

Whelkman 16:15, 2 February 2007 (UTC)

I believe what he is trying to say is that DMI can not be suffeciently enforced on RGB. Also, I think S-video was popular in Canada, ATI favored it and it was kind of a cheap selling point for consumer electronics, but was not very popular in the U.S. or, to my Knowledge Mexico, probably due to increase in the cost to manifacture, consumers to convert, and margianal increases in quality over the video, audio L and R already established in these regions.

Insulus 19:31,7 January 2008

[edit] Better clarity with DVI?

Why is this true:

"Analog RGB is slowly falling out of favour as computers obtain better clarity using Digital (DVI) video"

It previously said that component (vga?) had no compression. Doesn't this mean the image is perfect? How can you have better clarity than a perfect image?

Maybe I'm misunderstanding.

Thanks.

75.15.113.47 21:57, 6 February 2007 (UTC)Jonathan

Even if it's not compressed, analog video can still suffer degradation. For example, analog video tends to lose high frequencies as it is transmitted over the coaxial cables. Electronic noise can be induced. Any impedance mismatch causes reflections which show up as ghosts on the images. Digital doesn't suffer from any of these defects.

Atlant 00:44, 7 February 2007 (UTC)

[edit] HDCP

One confusion I've had when setting up for HD has been that the capacity of an interface is not necessarily what that interface provides. HDCP doesn't "like" Component Video, but that HDCP-enabled devices will still output to them, albeit at a lower resolution. I'm not sure how this would fit into an article on Component Video, but it does affect the interface's capabilities, in practice. Stevarooni 15:37, 2 November 2007 (UTC)

[edit] Component video *cables* and what they do

"Component video cables do not carry audio."

Isn't it more accurate to say that a component video signal does not carry audio? Component video cables are just RCA connected-cables, aren't they? Mike (talk) 19:24, 21 February 2008 (UTC)