digitalFAQ.com Forums [Archives]

digitalFAQ.com Forums [Archives] (http://www.digitalfaq.com/archives/)
-   Video Encoding and Conversion (http://www.digitalfaq.com/archives/encode/)
-   -   Is it better to encode to 352x576 MPEG-1 or 480x576 MPEG-2 ? (http://www.digitalfaq.com/archives/encode/5036-better-encode-352x576.html)

digitall.doc 12-12-2003 04:48 PM

kwag,
yep, you're right. I forgot to give this important detail. Anyway, encoding at 528x576.

Encoder Master 01-04-2004 10:19 AM

@KWAG

Is CQ_VBR realy better I've testet it and...

I've a Max bitrate of 1000kbps and a value of 9. Than I choose a MAX bitrate of 700 and WOW the value is at 7,xx with CQMatic. The File is perfekt predicted but I think the value have to be higher or not?

Jellygoose 01-04-2004 10:32 AM

The CQ_VBR and the CQ values cannot be compared the way you do it EM... A CQ value of 70 matches a CQ_VBR value of ~16...
There is no sense to post something like "I've tested it" when you really haven't looked at the quality of the two streams but only the Q-Values...

Encoder Master 01-04-2004 12:32 PM

@Jellygoose

First read then wrote then we haven't any problems.

I mean that I have a Max Bitrate of 1000kbps and a CQ_VBR Value at 10
Then I've the same only with a max Bitrate of 700kbps and I thought because of it's at CQ that the CQ have to be greater but the CQ at CQ_VBR was lower at 7.xx.

And I want to know if it's right.

kwag 01-04-2004 12:38 PM

And the more you increase the MAX bitrate (up to a point, of course) from the MIN (separation), the higher the CQ or CQ_VBR value will be in order to maintain the same quality.
It's the way the CQ/CQ_VBR curve works.

-kwag


All times are GMT -5. The time now is 09:41 AM  —  vBulletin © Jelsoft Enterprises Ltd

Site design, images and content © 2002-2026 The Digital FAQ, www.digitalFAQ.com
Forum Software by vBulletin · Copyright © 2026 Jelsoft Enterprises Ltd.