x264 Quality 1080p and 720p

[MiniMinimal]

Whats the best bitrate for:

1) 1080p

2) 720p

using x264.

what do you think about these?

1080p - 11.000 mbit

720p - 6.000 mbit

[Ranguvar]

The best bitrate is the one that hits the file size you need most accurately.

If you don't need a specific filesize, use CRF.

[MiniMinimal]

ok, then what is the best crf?

[J_Darnley]

The one that gives you your desired trade-off between quality and bitrate/file size. Most people suggest between 18 and 24.

[neuron2]

@MiniMinimal

Please stop asking what's best, per forum rule 12.

http://forum.doom9.org/forum-rules.htm

[MiniMinimal]

sorry my fault, the only thing i was looking for is if it was a grade i could look at. And i did find one by searching Google and i did get a good answer from J_Darnley. :thanks:

[Dark Eiri]

I would suggest CRF 21 for 720p, give it a try and see if it suits your needs.

[MiniMinimal]

Yeah, i did a test with crf 20 on 1080p, but thought the file did get too big. But good Quality... So i'm testing with crf 22 now.

[DJ Bobo]

May I ask what size you got with CRF20 and 1080p?

[JohannesL]

The CRF depends on how much you're upscaling the video upon playback. A 320x240 video will need a lower CRF to look as good as the source in full screen than a 1080p video.

[MiniMinimal]

I did get 15 gb crf 20 @ 1080p

[DJ Bobo]

Wow! 15GB, that's really too much. You won't even be able to burn it on a dual layer DVD.
Why not use 2-pass bitrate mode to hit the 7.9GB size and see what it looks like? I think it will look fantastic.

[Blue_MiSfit]

Not everyone burns to DVD :)

To me, that's one of the nicest benefits of storing things on a Hard Drive - you only have to do one pass (CRF), and you know the result will look good, even if the size fluctuates.

[DJ Bobo]

Blue, actually, it's the exact inverse, not everybody stores to HDD ;)

And even if he does want to archive on HDD, the size will be problematic if he wants to burn it later. I like doing things once and for all ;)

[Doom9]

I like doing things once and for allWhat makes you think anybody who archives to harddisks (and thus ignores size restrictions of physical media on purpose) would later burn them? Technology is going the other way.. the move from recordable/prerecorded disk based media cannot be stopped. It is going to take time (studios trying to DRM the crap out of any non physical distribution even more than with Blu-ray is certainly not helping, neither are ISPs that sell much more bandwidth than they deliver and then instead of living up to their promises resort to throttling and regulators letting them get away with it rather than suing them into ruin), but it is inevitable and I object to you using this board to try and get people from holding off from moving towards that future (this isn't the first thread where you're pushing your anti HDD agenda).

[DJ Bobo]

this isn't the first thread where you're pushing your anti HDD agenda

*lol*
I'm not pushing anything. I like archiving on DVDs, I have a nice album, I have a nice pen to write on my discs (:D), I can take it with me whereever I go without having to worry about someone breaking anything in the airport (;)), etc etc
You like HDDs? Please, go ahead, for all I care, you're free to do whatever you wanna do within your 4 walls, free countries, free people right?
I just wonder who's trying to push agendas here... *lol*

[ajp_anton]

I know I'm far from the average here, but I don't even have an optical drive in my computer because I see absolutely no use for the discs.
Sure, if I get something on a disc, I have to go though the trouble to load it into another computer (we have lots of them) and send the contents to my computer, but this doesn't happen so often that it's worth buying a new drive.
For transportation... if I had a laptop, I'd just store it on the hard drive. If I want to give something to a friend, it's faster to send it through the internet (again, I have above average upload, and everyone in Sweden have fast downloads).
edit: In extreme cases (someone has slow download), I'd just put it on a USB drive.

[JohannesL]

I did get 15 gb crf 20 @ 1080p
Are you sure that was 20 and not 2.0?

[MiniMinimal]

yes, ripbot264 : CRF 20
using the presets

[MiniMinimal]

by the way, CQ and Constant Rate Factor is this the same i Ripbot264?
I choose CQ then put the CRF on 22, i'm doing good? Then it will be Constant rate factor?

[isapc]

I havnt used a Cd Or a DVD in years.Thats one of good things about Vista or WINDOWS 7 iTS EASY TO FORMAT YOUR MEMORY STICKS NTFS AND TRANSPORT YOUR BLURAY RIPS ON THEM STUFF FAT32

[nm]

by the way, CQ and Constant Rate Factor is this the same i Ripbot264?
I choose CQ then put the CRF on 22, i'm doing good? Then it will be Constant rate factor?
I haven't used Ripbot264, but If there is a selection with both CQ and CRF as options, select CRF. CQ is probably "constant quantizer", which is not the same thing as constant rate factor. QP or CQP would perhaps be a less confusing name for the option.

[MiniMinimal]

it's in the same option, i know that it is two different techniques thats why i did get confused