@Colorz

Hi.

That's possibly because YouTube's standard aspect ratio is 16:9.

Any attempt to load a different aspect ratio will make YouTube just add black bars to other ratios until the video conforms to 16:9.

Ray.

And what is this?

Just want to know how I have to export, because i cannot find it somehow...strange...

@Colorz @CubeAce YT will accept cinema style footage, I've seen it & your video shows it,

this is from your video (right click Sstats for nerds to get the info)

To start my test, I did it in Vegas first to your size 3840x1634 just to see if it would work ok , (this was before/while you uploaded that vid above)

this was the file that produced

& uploaded to YT

That worked so i tried MEP,

most export options wouldn't let me set the aspect ratio, so i checked & the closest i could get was WME 3840x1645 7:3 (21:9)

MEP would accept 3840x1644 7:3 (7:3 being one third of 21:9) as a project & export option but in the preview the 16:9 media i was using is stretched, i clicked Continue to ignore the warning msg, but the export seemed ok, don't know about that, 🤷‍♂️

the file that created

& on YT

@Colorz Ok a bit more testing.......

After looking at the Stats for nerds info on the video you supplied it says it's 3840x1440

MEP likes that size a lot better, it's 8:3, i could even adjust the media to look correct on the preview

& MPEG-4 export auto inputs those sizes & aspect

this is the file it created

& on YT

@Former user

Hi Gid.

I just looked at your video on my phone. It's the only screen I have of that aspect ratio.

It did come up full screen although it's reporting the 4K version as being 2160p and HD as 1440p

Did you have to choose avi as the export format?

Ray.

@CubeAce Hi, on the settings cog on YT window it says 4k 2160 but Stats for nerds says 3840x1440

Full screen YT vid on my 4k 32" monitor

AVC is my normal choice, it's the first i tried in the tests above with 21:9 (7:3) but i couldn't with that aspect ratio,

but yes this last one was AVC, I didn't try HEVC...

@Former user

Must have been typing at the same time as you.

You seem to have it sorted.

What aspect ratios co you get offered for export in the drop-down menu?

Ray.

@Former user

I see you keep getting a couple of dropped frames. Is your connection buffering?

It's playing back smoothly at my end.

Ray.

@Former user

I see you keep getting a couple of dropped frames. Is your connection buffering?

It's playing back smoothly at my end.

Ray.

@CubeAce Sorry what do you mean, the YT vid dropping frames?

@CubeAce I used that online Aspect ratio site, so I set the project to 3840x1440 8:3

when i went to export & picked MPEG-4 8:3 the size & aspect ratio was already in the boxes

This is what's on offer

@CubeAce Oh i see in the Stats for nerds, yeah i was downloading some stuff😛

This is YT's Stats right now, no downloading going on

@CubeAce Magix HEVC I had to put in 3840x1440 8:3 in the boxes manually but it exported no problem,

@Colorz

A few points:

- The Magix Youtube uploader hasn't worked properly in the past. I suggest you do an export to a local drive, then use the uploader on the YT website.

- You can export 16:9 footage (your 3840x2160) to 21:9 (3840x1632 [not 1634, not sure why Magix won't accept 1634]) but you will end up with black bars on the sides: pillarboxing.

- To do the actual export, on the MPEG 4 Export screen, click on the three-dot icon beside the Resolution boxes, then type in 3840 and 1632. Next, input the ratio in the following format 3840:1632 (note the two dots between). Magix will calculate the ratio (in this case, 2.352).

During the export, you'll get a warning box regarding differing resolutions. Just click Continue.

A question: is your intent to have a full picture right across the 21:9 screen, or have a 16:9 movie with black bars "inside" the 21:9 screen? What you are trying to achieve will determine whether you have black bars on the sides or a full screen. If you want a full screen, you'll have to crop your 16-9 movie, or stretch it.

@CubeAce

Ray, that link says (my bolding):

The standard aspect ratio for YouTube on a computer is 16:9. If your video has a different aspect ratio, the player will automatically change to the ideal size to match your video and the viewer's device. 

In my experience, you can post any resolution-video you like and the YT player will fit around it with no borders.

@AAProds Thanks 👍 yep tried that, it works & i can adjust the image on screen no prob, 👍

How did you work out 3840 and 1632 was ok as apposed to 1634, trial & error?

& on YT

@Former user

How did you work out 3840 and 1632 was ok as apposed to 1634

Gid, Magix told me. Oddly, you can input a movie setting of 3840x1634. But when you come to export the movie, the export screen shows 3840x1632. When you try to change it to 3840x1634, Magix says "no you don't, it's got to be 1632". Not in as many words... the height box just jumps back to 1632.

I tried a 3840x1634 export from VPX 12 and it worked. It seems MEP has a bug, still existing in MEP/MMS 2022.

@Colorz

I have UHD footage (3840x2160). Is here someone who knows how to export this to 21:9? If I set the aspect ratio to 3840x1634 in export

Another issue. 3840x1634 is not 21:9. Do you want 21:9 or 1634 for your export? 21:9 implies a video height of 1645 (Magix rounds this to 1644).

@AAProds @Colorz @Former user

Apologies .

I misread the page last night.

It makes more sense reading it this morning.

The only table I can find for pixels and aspect ratios is this.

Ray.

@CubeAce

And they call those "standards"? That list covers just about every permutation and combination you could make up! 😃

Oh, and you can add another: my "A Star is Born" DVD is 2.4:1!

Speaking of Wiki, I am struggling with the claim (my bolding) from this wiki page:

The "21:9" digital format's aspect ratio of approx. 2.37:1 is positioned between the classical CinemaScope aspect ratio (1678:715, approx. 2.35:1) and the aspect ratio of modern anamorphic cinematic content (1024:429, approx. 2.39:1), matching both with only a slight deviation.

@Colorz

Arrgh, I just realised we're in the VPX sub-forum. You should be able to set 1634 for export as I mentioned above.

We still need to know what you're trying to achieve with your video though: black side bars, stretched or cropped top and bottom.

@AAProds

Hi Al.

It also depends on the amount of pixels different monitors use on the visible screen.

Look at 21:9 on this table I found on a site doing a monitor comparison.

I suppose beyond a certain point pixel ratio differences are close enough.

Ray.

@AAProds

. . . . Magix says "no you don't, it's got to be 1632". Not in as many words... the height box just jumps back to 1632. . . . .

The reason for this has to do with the encoding algorithm which encodes the video in 'blocks' - the smallest block size is 4x4 for h.264/AVC so the width and/or the height must be divisible by 4 - you cannot have a partial block of image data.

@Colorz

Hi

If you want the video to be full screen 21:9, ie avoid pillar boxing, then the video clip is going to have to be cropped and the following settings used for:

Project settings:

Note: I used the next width up which was divisible by 4 - IMHO it works better then using a lower value.

If the AR dialog will not accept 7:3 enter 21:9
 

Import the 16:9 video, in Size, Position & Rotation set the Width setting to 3840 the height will automatically adjust and the image will be 'cropped' top and bottom, use the position options if necessary.
 

Export settings:

Change the AR to 21:9 - for this type in the project width height settings as shown below - this will set the AR correctly.

This is a 16:9 video cropped top/bottom and exported as above.

HTH

John EB

@johnebaker

. . . . Magix says "no you don't, it's got to be 1632". Not in as many words... the height box just jumps back to 1632. . . . .

The reason for this has to do with the encoding algorithm which encodes the video in 'blocks' - the smallest block size is 4x4 for h.264/AVC so the width and/or the height must be divisible by 4 - you cannot have a partial block of image data.

John, as alluded-to above, VPX will export 3840x1634 H264; MEP will only export 1632. Does that mean that VPX is wrong and MEP is right?