5GB for 20min 1080p video?

[Nick Mcmahon]

Brilliant… I’ll get the BCC UpRez plug-in out of the box and have a play… how did I not clock that when I went thru the CC package… DOH !!

So… my project has begun with a whole load of 720 footage but will end with a montage of footage shot in Dubai at the competition where it’s required to submit 1080 for judges to view.

So I’ve clocked from your explanation how Vegas resizes on-the-fly in the timeline and not left until the render process… makes sense now… thanks

Would I in fact be better off changing my project properties to 1080 and have the 720 resized…? will the end result be better if it’s viewed on a 1080 capable monitor?

In other words should you always set the properties to that of the highest res footage you are using when there are varying sizes of clips being used in a project..?

And perhaps utilize the ‘UpRez’ plug-in on the 720 footage also…?

One more question: This 720 x 576 footage is shot at 25fps… so would it be better to change the project to 24p as surely leaving it at 30p will mean 5 frames have to be manufactured every second of this footage…?

Nick… BASE1268

3…2…1…C ya

[John Rofrano]

[Nick McMahon] “Would I in fact be better off changing my project properties to 1080 and have the 720 resized…? will the end result be better if it’s viewed on a 1080 capable monitor?”

No. If the majority of your footage is 720 you will get better playback speed while editing if the project matches your footage. This will not affect rendering at all. As I stated, if you have 1080 footage in a 720 project and you render to 1080, the quality will be the same as if you had a 1080 project and rendered to 1080. The project settings do not affect the render quality. They are two separate things.

[Nick McMahon] “In other words should you always set the properties to that of the highest res footage you are using when there are varying sizes of clips being used in a project..?”

There are always trade-offs. If I’m are working with footage of multiple resolutions I like to either set my project to the resolution of the footage that I have the most of so that I get the best playback speed, or set my project to resolution that I will deliver in to be sure that what I see while editing will be what I see when I deliver. If you are dealing with footage that has the same aspect ratio (e.g., all 16:9) it really doesn’t matter but if you are dealing with footage of different aspect ratios I would definitely set my project to the resolution and aspect ratio that I plan to deliver in so that there are no surprises when I render.

There is no optimal answer. The fact that you have footage of different resolutions is sub-optimal all by itself.

[Nick McMahon] “And perhaps utilize the ‘UpRez’ plug-in on the 720 footage also…?”

You could certainly do that but Vegas does a pretty good job of resizing from 720 to 1080 so you might not need it. It’s when you go from SD to HD that you really need it.

[Nick McMahon] “One more question: This 720 x 576 footage is shot at 25fps… so would it be better to change the project to 24p as surely leaving it at 30p will mean 5 frames have to be manufactured every second of this footage…?”

24p has it’s own set of issues. Did you shoot for 24p? Because if you didn’t, your 60i/30fps footage might look very stuttery when you pan because you weren’t panning with 24p in mind. You have to think about, do you want to compromise the 60i/30fps footage because of the 50i/25fps footage or do you want to compromise the 25fps footage for the 30fps footage. Once again, there is no optimal solution. Something will get compromised.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Nick Mcmahon]

Thanks very much as always for the explanation… now I properly understand that project properties are primarily intended for how the timeline preview is displayed so we can see what the delivery will look like.

here’s where my misunderstanding came from…. because when you try to customise a render template there are several tabs at the bottom one of which is marked ‘project’

Stupidly I didn’t clock the ‘Rendering Quality’ refers to only that specific choice which can be set in the PP’s and of course you can drop the menu down in the template which then gives you the same choices for rendering quality as in the PP’s

I thought it was using ALL the PP settings…. DOH !! That’ll teach me for fishing around and looking at stuff without properly understanding it. Comes back to the point that Sony doesn’t offer a tutorial explanation on the customisation of templates and what effect each setting will have… at least I haven’t found one yet.

So that now makes sense about the use of the UpRez plug-in too tho I need to read up on how to use the settings to get the best overall quality increase in a clip… it really only has any noticeable effect on SD to HD because as you say Vegas does a good job of resizing 720 to 1080.

On a completely different note while I think of it… the 3.06GHz 12 core Mac Pro I sent you the link to went for US$1995… bargain if they go for 3000+ in the states… hopefully I can get one for a similar price when I’ve saved enough

cheers

Nick… BASE1268

3…2…1…C ya

[John Rofrano]

[Nick McMahon] “On a completely different note while I think of it… the 3.06GHz 12 core Mac Pro I sent you the link to went for US$1995… bargain if they go for 3000+ in the states… hopefully I can get one for a similar price when I’ve saved enough”

Wow! That was a good deal. I’m really liking my 12-Core Mac Pro. No regrets at all. It took me about 6 month to get it for the price I wanted on eBay so you really have to be patient but the deals are out there to be had. Good luck!

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Kirk Wood]

Me again. Glad someone else has been able to receive help from this thread. 🙂

I rendered a video today. Best quality, 50 bit rate and 720p (as per the original footage). The render’s file size is 12.8GB, and it is 39 minutes long. I’m okay uploading larger sizes due to recent upload speed upgrade. The render itself when played in VLC looks *perfect*.

However, I have uploaded said render to Youtube and despite being the only video with a 50 bit rate, the quality of the image seems quite different to the 720p videos I’ve uploaded before. It’s not too far off, but I’ve noticed the video blurs far more often during movement and intermittently than the others.

The *only* setting I changed this time around was the bit rate and disabled two-pass, as per suggestion regarding high frame rates. I should also note that I set both the maximum and average bit rate as 50; not sure if that’s an issue, but like I said the finished render is absolutely fine.

The *only* difference in my upload was that I uploaded a higher quality render.

Presumably this is a problem with Youtube’s encoding since the quality degrade is only noticed there, however I am wondering if the lack of two-pass, max/average rate or using such a high rate has influenced the poor quality in some form?

[John Rofrano]

[Kirk Wood] “The *only* setting I changed this time around was the bit rate and disabled two-pass, as per suggestion regarding high frame rates.”

That’s interesting because that is something that two-pass could possibly fix but it doesn’t make sense because the bit rate is so high. Try turning two-pas back on and see if it makes a difference. If it does, then I retract my statement that it’s not need with high bit rates because it is obviously making a difference in this case.

[Kirk Wood] “I should also note that I set both the maximum and average bit rate as 50; not sure if that’s an issue, but like I said the finished render is absolutely fine.”

That’s not what you should be doing. If you want to use a constant bit rate then you should use the CBR switch. Try that instead.

[Kirk Wood] “Presumably this is a problem with Youtube’s encoding since the quality degrade is only noticed there, however I am wondering if the lack of two-pass, max/average rate or using such a high rate has influenced the poor quality in some form?”

It is possible that this is purely a YouTube problem but it’s worth uploading a small CBR file and two-pass file just to see if they make any difference.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Kirk Wood]

I’ll retry two-pass. Shame it would take four or five hours though, but I suppose sacrifices must be made for quality eh.

See, I thought that, but I was confused as to what setting to do. Average 50, maximum slightly over? Maximum 50, average slightly under? Also, from my understanding you should use VBR for Youtube?

I might try something like 35 bit rate with two-pass, that way I lower render time and the quality doesn’t take a significant hit.

[Jane Kong]

hope you don’t mind I post here, but really this post helps me a lot and saves me a lots of time about the same problems. I know the longer conversion related to the Bit rate, if you want to downscle the bitrate ,the quality may be influenced. Still too large files are a big problem.