[RobAnt]

I have read that YCbCr is a digital format, and YPbPr is an analogue format.

My Cambridge DVD recorder sports YCbCr outputs, whereas my TV sports YPbPr inputs.

I've connected the two using these outputs/inputs and the picture is (or seems) better than a standard SCART RGB.

So if one is digital and the other analogue why does it work?

[Nigel Goodwin]

As far as I'm aware they are just different names for the same thing?, if you're feeding the set as progressive via those Component sockets, then it will probably be better?, or if it's an upscaling DVD it may be better, but Component as such is no better than RGB SCART, and if anything is slightly inferior - but DVD's don't output RGB, only Component - the RGB outputs are derived from the internal Component signals.

[bobcar]

Quote:

Originally Posted by RobAnt

I have read that YCbCr is a digital format, and YPbPr is an analogue format.

My Cambridge DVD recorder sports YCbCr outputs, whereas my TV sports YPbPr inputs.

I've connected the two using these outputs/inputs and the picture is (or seems) better than a standard SCART RGB.

So if one is digital and the other analogue why does it work?

Your connection is analogue both ends that's why it works. You are connecting via component which is always analogue.

YPbPr is the term for the connection you have but it is often termed YCbCr in specs. YCbCr is the definition for the general coding used to store/transport RGB in a more efficient fashion.

[RobAnt]

So the Cambridge is mis-labelled then? If it is outputting to an analogue standard, then it must be oututting YPbPr not YCbCr, yes?

Discs are written in the digital YCbCr domain, and are converted inside the DVD Recorder to a signal in the analogue domain (YPbPr) prior to being output via the three component RCA sockets.

Are there any cases where the component RCA sockets do output in the recorded digital domain? Or is YCbCr strictly only possible via the HDMI/DVI digital outputs?

[Beavis99]

YCbCr and YPbPr are one and the same. They're not used to define connections, but actually define the colour space of the video. Generally YCbCr is the nomenclature used for the colourspace, and YPbPr is used as the interconnect which outputs an analogue signal.

Not sure where you heard one's analogue, one's digital, but post a source if you find out.

Currently, the only consumer digital interconnect is HDMI (and DVI of course) which outputs data in RGB format. All others are analogue (including component - whether it be labelled as YCbCr or YPbPr).

To my knowledge, DVD data can be held in either RGB or YUV colourspace (YUV is the same as YCrCb) and any conversions are performed within the DVD player and are completely transparent to the user.

B

[LCDMAN]

Quote:

Originally Posted by Beavis99

YCbCr and YPbPr are one and the same. They're not used to define connections, but actually define the colour space of the video. Generally YCbCr is the nomenclature used for the colourspace, and YPbPr is used as the interconnect which outputs an analogue signal.

Not sure where you heard one's analogue, one's digital, but post a source if you find out.

Currently, the only consumer digital interconnect is HDMI (and DVI of course) which outputs data in RGB format. All others are analogue (including component - whether it be labelled as YCbCr or YPbPr).

To my knowledge, DVD data can be held in either RGB or YUV colourspace (YUV is the same as YCrCb) and any conversions are performed within the DVD player and are completely transparent to the user.

B

A whole bunch of text/reference books (Shelley et al.) and Wikipedia (yes really!) YPbPr (analog) uses different scaling factors to YCbCr (digital).

This is good source of info on the YUV "family"

http://www.fourcc.org/yuv.php


LCDMAN.............Welcome to my world!

[Beavis99]

Sorry, was referring to interconnects as opposed to colourspace.

[LCDMAN]

Quote:

Originally Posted by Beavis99

Sorry, was referring to interconnects as opposed to colourspace.

D'oh, sorry - helps if I read the post properly. Yes, from an interconnect point of view then component (in whatever colourspace, RGB, YUV, YPbPr, YCbCr) is analog 1V p-p (0.7V nom), not digital. HD-SDI/SDI and HDMI are the two types of digital interconnections.

LCDMAN..................Needs more sleep!

[technoflare]

Sony tend to use YPrB on some its prof products. YUV is simular but has different weighting and is mainly used within composite encoding/decoding systems.