Aspect ratio converter

Hello...
a while ago on this forum i stumbled into a link to a nifty little java script for pixel aspect ratio convertion... i've got to scale down some 16:9 stuff into mpeg's.
Anyone know the funky little converter I'm talking about...
oh, and yes... i did a search but couldn't find the thing i'm after.
Cheers,
J

James, I think this is what you were looking for:
http://www.scottsimmons.tv/blog/2006/08/08/useful-tools-for-editors-part-5/
Here's another:
http://www.scottsimmons.tv/blog/2007/01/19/useful-tools-for-editors-part-10

Similar Messages

Having trouble with aspect ratio when compressing DVCPRO HD footage to QT

I have a 35mm film (1.85-1 aspect ratio) converted to 16/9 DVCPRO HD. When I compress it to Mpeg2 for DVD, it looks great, holds the correct aspect ratio. But when I choose a setting for the web, a small Quicktime file, it stretches the image ever so slightly. Not sure what the problem is. Thanks for the help.

Hey Lodgeboy,
without knowing the settings you are using, it is difficult to help, but i will try to answer as best i can:
if you are using web-presets, make sure you crop the matte, NOT resize the file.
Basically, instead of letterboxing OR creating am anamorphic MPEG2 for DVD (still in the 720x480 space) you would first crop the mattes off and then resize.
In the case of a web-file, it doesnt matter what order you process the file, EXCEPT if its for IPTV.
Without knowing details about what your final deliverable is, the source and the settings, this is as much as i can help you.
Mikey M.

Aspect ratio problem while converting movies

i think the black screen problem is the aspect ratios because videora ipod converter converts movies ar 1.33:1 and if your movies ar isn't 1.33:1 so u will see a black screen.
we need a program that we can set ar manually.or we can only convert the movies which ar is 1.33:1 with videora ipod converter

I believe that at least a partial solution is to create all of this widescreen, then in DVDSP, you have to make it a menu and not a video track. Then for aspect ratio in SP, select 16:9 Pan Scan & Letterbox. Be aware that it will cut off the sides of the picture in 4:3. Then your following image you'd have to put bars on the sides of the 4:3 video in Final Cut pro. Hope this helps. Anybody else got any ideas, I'd be happy to be proved wrong.

Converting DV to ???. Which format? Aspect ratio problems.

I'm trying to digitize some old VHS videos for archival and I need some guidance. My goal is to keep a digital copy on disk and toss out the tapes with the player. Most of the videos will just be for future viewing, not further editing. I tossed out the TV a few years ago and I hope to never go back, so my primary viewing will likely be on a computer screen. If I do get another TV someday I imagine that I would play these videos with some sort of media center type device rather than a DVD so I may need to keep that in mind when deciding upon the final format.
I'm using a Canopus ADVC-300 to convert the videos to DV streams. I use iMovie HD 6 to capture the DV input. A few months ago I converted a few tapes with iMovie 08 and learned the hard way about the DV quality problems designed into that product. Anyway, the Canopus feeds my Mac a standard 720x480 DV stream. In iMovie I start a new project and tell it the video format is DV, as opposed to DV Widescreen.
Up to this point everything is working great.
My dilemma is how to save the video. I want a format that has good quality and will not likely need any future transcoding to stay usable. Thus far from iMovie HD I've been sharing to Quicktime, selecting Expert Settings, and then playing around with the various options within "Movie to Quicktime Movie".
On the video settings panel I'm going under the assumption that H.264 is the preferred choice. I set the compressor quality to high, the encoding to multi-pass, and the data rate to automatic.
The video filter panel has nothing selected for now.
The video size panel is where I start having questions. Obviously the original video sources have a 4:3 aspect ratio. If I leave the dimensions as "current" (720x480) I get a video that plays at 3:2 in every player I've tried. I guess that seems obvious even though I told iMovie I was working with a 4:3 project. My player of choice is VLC and I can tell it to show the video at 4:3 but it's a pain to do that every time. Quicktime can do that too, and in fact you can save the aspect ratio with the video so that it will display that way each time, but I never really use QT unless I have to.
Looking at the list of available choices in the dimension drop down box, it looks like there are a couple possible solutions...
The most obvious choice is "NTSC 720x480 4:3". When this option is used the video is 4:3 by default when played by QT. However, it still shows up as 3:2 in VLC, mplayer, and also when played via Frontrow. I downloaded mplayer just for this comparison and I never watch videos using Frontrow but I suppose I might someday if that media center thing comes into play. Once again I can tell VLC to show it as 4:3 but doing so every time is annoying. There doesn't seem to be any way to adjust the aspect ratio from within Frontrow so that's a non-starter. I'm thinking this might technically be the correct format to use but none of the players other than QT recognize the anamorphic setting (is that right?). When I look at the video properties in QT it shows 720x480(640x480) but the other tools show just 720x480.
The next obvious choice in the list of dimensions is "640x480 VGA". When I use this option I do in fact get a video that displays correctly in every player. However, I can't help but wonder if I'm losing resolution this way. I think it's just converting the rectangular pixels to square pixels but with the drop in horizontal pixels there must be less information there? Is this a viable format for playing on various devices in the future?
Should I be experimenting with something other an "Movie to Quicktime Movie" and H.264?
In all cases I've selected to deinterlace the video. Some might say that VHS is of such poor quality to begin with that using such high settings is a waste. I say that the source video is bad enough that there's no room to add even more degradation. I'm willing to live with data rates that will push 1-2 GB per hour of video. I think that's probably plenty to keep the video quality as good as can be considering the source. I'm just not sure which format is best for this purpose. It's a one-shot deal, once the conversion is done the tapes get thrown away so I'm a little anxious about making the right choice.

When choosing Export -> QuickTime Movie, you get a self-contained QuickTime-file of your sequence. The default video format is the same as your current sequence settings, which means you will get the exact same frame size an pixel aspect ratio in your QuickTime-file.
The best thing would be to use Compressor, but first you need to tell us what you are going to do with your QuickTime movie. Is it supposed to be a copy for the web? What video format do you need/want your movie to be exported in?
To letterbox your video in a 4:3 frame size, read about padding in the Compressor User Manual.

Actions for converting aspect ratios

Here is a little tip if you want to resize your camera images for a slide show.
I needed to convert and resize my 3008 x 2000 RAW images to PAL Standard for a slide show. I use PS CS3 and I was using IMAGE>Pixel Aspect Ratio to convert the file then IMAGE>Size to resize to 720 x 576. I decided to create an Action to autoamte the process and when I opened up ACTIONS lo & behold Adobe have already created an Action for all the NTSC and PAL formats.
All it takes is to open your image, select Actions and select the format you want, that is it. All I need to do now is create a Batch File to automate a over 200 image files.
If like me you use PSD files then they must be flattened first and the Action is not written for images in portrait mode, these have to be done through IMAGE>Pixel Aspect Ration and then IMAGE>Size with the width and height transposed and Constrain Proportions unticked.
Doug.

Doug,
I agree that Actions are the way to go in PS. Mine also change the Color Bit Depth Mode to 8-bit, as I am almost always working in 16-bit, when I process my Camera RAW files. Not sure about the included PS Actions, but in PS CS2, I have just written several that do all the pre-processing, and then do a Automate>Batch for entire folders of these images. I also will keep the files in PSD format, when I do the final Save_As.
This ARTICLE covers most of my operations, using your workflow.
Nice to know that PS installs with Actions that can do most of this. I never saw them in CS/CS2, but maybe just did not look, or perhaps Adobe has added them in CS3/CS4. Nice to know.
Thank you,
Hunt

How to convert HD 1080 to SD 486 pixel aspect ratio "IN" Shake ?

Hi,
I convert 1920X1080p master to 720X486P in Shake because i like the downscaling algorythm.
But when i put the exported file in Final Cut, it distorts the image to show correct aspect ratio, meaning Shake exported square pixels.
How can i convert 1920X1080p (square pixels) to 720X486p (CCIR601) DV pixel ratio directly IN Shake rather than allowing FCP to "distort" it to show correct image aspect ratio ?
Thanks
Antoine
Message was edited by: Antoine Fabi2

Hi Patrick,
I have found a simple workaround
Here's what i did in Shake:
I import the HD 1920X1080 square pixels clip.
I select HDTV1080 as exporting format in the "Global" tab.
I type 720X360 as export size in the Parameters 1 tab.
Render out...
In FCP, i import and reset the distort control to 0 in the clips motion tab.
ET VOILÀ. Everything has the correct aspect ratio without compensation distortion in FCP
Antoine
Message was edited by: Antoine Fabi2

How can one convert a picture to 1080 pixels in height at 72 dpi and retain the aspect ratio?

How can one convert a picture to 1080 pixels in height at 72 dpi and retain the aspect ratio?

The ppi has nothing to do with this. It will stay at whatever it is.
Go to image>resize>resize image, turn ON Resample image and enter 1080 for the height, making sure to leave constrain proportions turned on. Don't mess with the ppi setting.
If the image is set to another ppi setting, then after you're done with the above, go back into that window, turn OFF resample image, and set the ppi to 72. PPI only affects the inc/cm measurement.

DNG Converter is changing aspect ratio

Hello!
I've been shooting on the Canon G16 in 16:9 and when I convert the RAW files with DNG converter it changes them to 4:3. Help!

The 16:9 aspect ratio setting is an in-camera setting that I suspect is not transferred to the DNG file. Converting to DNG standardizes the file format, but some proprietary settings sometimes are not transferred.

Converting Aspect Ratio Issues

I have a bunch of movies that I have edited from mini dv tapes and I am trying to export them to put them on a DVD w/ iDVD and I am also trying to put them on my ipod. In Final Cut it says the files are 720 by 480 even though they play at the proper 4:3 aspect ratio in Final Cut. After I export them w/quicktime movie (the first option) they play stretched when opened with quicktime but play normal when I open the file w/ Final Cut. When I put the same files in an iDVD project and watch they are not stretched. If I convert the files to ipod video w/ quicktime they are stetched out also but if I use isquint to convert them they are the proper aspect but annoyingly out of sync. (if any1 knows why that is it would be greatly appreciated) Ultimately I would like to be able to watch my films in the proper aspect ratio, but more importantly i want to make sure i don't burn a dual layer dvd to find out all my films are stretched. I would also like them not to be stretched on my ipod.
srry for the long post
thx

Peter,
If you have Quicktime Pro, look for the Export>Movie to iPod option.
Besides that, I think a little of searching was enough to find some information about iPod encoding, as follows.
Video specification of iPod are:
H.264 video: up to 768 Kbps, 320 x 240, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC up to 160 Kbps, 48 Khz, stereo audio in .m4v, .mp4 and .mov file formats
MPEG-4 video: up to 2.5 mbps, 480 x 480, 30 frames per sec., Simple Profile with AAC-LC up to 160 Kbps, 48 Khz, stereo audio in .m4v, .mp4 and .mov file formats
You can find it here:
http://www.apple.com/ipod/specs.html
I have NOT iPod video then, I never tried this, but my best guess is try creating a custom preset with compressor to match the mentioned video specifications and test it.
Did you search about this in iPod discussions? Probably would find some information there that help you.
Good luck !

3:2 aspect ratio getting converted to 4:3

I'm importing a quicktime movie set at 740x480 (3:2) with square pixels (exported from FinalCut Pro 6). When I import it into iDVD the movie gets scrunched up into (apparently) a 4:3 ratio and everyone looks too tall and thin. If I open the movie in Quickime Pro it looks fine. How can I import this movie so that it retains the correct aspect ratio?
thanks
Scott

Hi Scott -- iDVD only has options for 4:3 and 16:9, so if you want to use iDVD, your video size will need to be appropriate. I'm guessing the real issue is the pixel shape. Others have mentioned an option in FCP for exporting in an appropriate Quicktime format for iDVD (iDVD is happiest with DV Stream [.dv]), but you may need to search here and on the FCP forum for details.
John

Convert aspect ratio (from 1440p to 1080p)

Hi All,
I'm using the trial of Premiere CC (considering making the jump from FCPX). The getting started guides on adobe's site are great but i'm having problems trying to find an answer for this question:
I shot some footage in 1440p (by mistake), i've edited it into a sequence that I want, colour graded it and put music to it. How do I crop it so that it becomes 1080p. I've used the crop effect but when I go to export it to h.264 it still exports it as 1440p but with black bars.
Can anyone help? I would be eternally grateful
Chris

1440 has a aspect ratio of 1.33. This should also be in your sequence settings.
1440 can be easily exported to 1080 with aspect ratio of 1.0.
You can also drop 1440 footage directly in a 1080 sequence, it will automatically fit the screen.

Converting to a 16:9 aspect ratio

I have used Premiere Elements – V4 to develop slide shows of family photographs. The slide show was burned onto a DVD. A standard DVD player is used to view the DVD contents on a TV screen.
The slide shows are displayed on the screen in a 4:3 aspect ratio. Since most of the recipients of the DVD now have HDTV, I would like to provide them with a DVD that would display the photos in the new 16:9 format without any distortion (e.g., squeeze or elongation) in the photos.
Can I use Premiere Elements – v4 to burn a DVD with the 16:9 aspect ratio?
If yes, please tell me how to do that.

Steve,
I did not want to start a new project.
I had hoped to take the existing project that was created with a 4:3 aspect ratio and covert it to a 16:9 aspect ratio (perhaps by changing a setting somewhere) before burning it to a DVD.
Can I do that? If so, how?

Can you help me solve my aspect ratio issue?

Hey guys,
I'm posting this in hopes that someone can help me solve an aspect ratio issue with a project that I have to finish by tomorrow.
I'm trying to avoid having to re-edit the entire thing.
I shot the project with my Nikon D7000 DSLR. in 720p 30p (29.97)
I am running Adobe Premiere Pro CS5 (the trial version). I have the full version of Adobe Premiere Pro CS3.
The reason I was working with the trial is that CS3 can't handle the H.264 MOVs that the D7000 records.
You can work with a timeline, but if you try to export anything, it never works. I always have to convert my footage to ProRes MOVs with MPEG Streamclip before I can work with them is CS3. That takes a lot of time and a lot of hard drive space. After much research, I found out that CS5 is the way to go for DSLR footage. I just need to save up my pennies for the upgrade.
So I thought I'd edit this short (1 minute) project with the trial to see how CS5 works with the D7000 footage.
Upon installing the trial program, I found that the project presets were limited. I knew this ahead of time because it's clearly stated on the Adobe's website.
But I wasn't aware how limited they are.
Since "DSLR 1280x720p 30p" is not an option with the trial, I was going to use HDV 720p 30p. But that was not an option either!
So basically, my only option for 16x9 30p was "DV NTSC Widescreen". It's my understanding that this is 864x480 (in square pixel aspect ratio) or 720x480 (in widescreen pixel aspect ratio) I needed the output file to be 864x486. I downsized the footage to 69% in the "Video Effects: Motion" setting so it looked correct in the project. I didn't think about those extra 6 pixels until I outputed the file and saw thin black lines on the top and bottom. My guess is that Premiere is adding black pixels because my project is technically 720x480 (1.2121)
Any thoughts on how I can get a clean 864x486 export? I'd rather not re-edit the whole thing...which I would have to do in CS3 after I spent a few hours converting the original files in MPEG Streamclip. I don't know if there is a way to export something out of CS5 and then open a new project in CS3 to make this work.
Thanks in adavance!
- Jordan

On export, just crop a few pixels off of each side; that'll let the image scale correctly to the output frame size without black bars.
I'm not running the trial, but you should still be able to create a custom sequence preset using the Desktop editing mode. Just switch over to the General tab when you create a new sequence, and choose "Desktop" from the editing modes. Set the rest of the parameters as you need them.
Even easier: once you've imported your footage, just drag a clip to the New Item icon at the bottom of the project panel; a sequence will be created matching your footage parameters. You can edit at full-resolution, and then export to your desired frame size when complete--you'll probably still need to crop a few pixels (in the Export Settings window) to eliminate the black bars.

Working with several video formats aspect ratios need help...

Hi folks I have searched around quite a bit but I need more specific advice based my situation...I am editing a docu about Japanese biker gangs shot on several different SD cameras:
MY FOOTAGE
1.Sony Vx-2000 fitted with a Century Optics 16:9 converter lens bayonet mounted
2.Canon Xl2 shot in 16:9 mode
But I also have:
ARCHIVAL/ACQUIRED FOOTAGE
1. Contributor's camera SD 4:3 aspect ratio
2.Contributor's camera SD 16:9 aspect ratio
3. Transferred from VHS into SD 4:3 aspect ratio
I would like to standardize the aspect ratio for the project but I am getting confused as sometimes the footage shot on the sony (which should be true 16:9) appears elongated vertically at times.
Are my settings off?
Also, I have "title safe" wireframe on in the Canvas and the images all exceed the outer box. I don't have a TV so it's hard to check what (if anything) gets
lost. I guees most TVs can handle 16:9 without letterboxing....
Do I have to worry about that? Which box should I crop to if I letterbox? The out or inner? Or the outside of the screen? Should I just letterbox the whole project?
BTW eventually I am planning on Uprezing the project to HD using Magic Bullet when outputting.
The overall question is: Who has experience dealing with multiple aspect ratios in one timeline? Can you offer any advice on a work flow to output successfully?

Sorry to butt in, haven't read the entire thread.
Suggest you plan from the beginning to create one timeline but encode for two separate output formats.
Standard procedure for bringing multiple formats is to convert them to a single format as they are ingested. Decide early what the timeline format will be and transcode everything to that codec before anything is brought into the timeline.
When your project goesgolden, export a single self-contained movie and take that to Compressor to create release movies that will be played on Blu-ray, SD DVD, online, or in Power Point, whatever you need.
bogiesan
Message was edited by: David Bogie Chq-1

Can anyone tell me if Quicktime Pro retains aspect ratio once a video is rotated?

I'm reluctant to purchase Quicktime Pro until I know the answer to this question and Apple Support doesn't seem to have anyway to ask, so I thought I'd try this group.
I took some videos with my iPhone (the long way), and need to be able to rotate them and convert them to avi files. I understand that Quicktime Pro can do the rotation and conversion, but I saw one review that said the aspect ratio is not retained, i.e. the video comes out flattend (wider).
Can anyone tell me if this is still true with QT Pro, or if there are other solutions for resolving this outside of QT Pro?? I have tried a number of other converters, and found one that rotates, but aspect ratio not retained.
Thanks in advance for any help shared!!!

I took some videos with my iPhone (the long way), and need to be able to rotate them and convert them to avi files. I understand that Quicktime Pro can do the rotation and conversion, but I saw one review that said the aspect ratio is not retained, i.e. the video comes out flattend (wider).
This may or may not depend on your specific work flow. Many "settings' saved to the original file by QT 7 Pro are merely "playback instructions" which may or may not play correctly in other media players while these same settings do work properly when saved/converted to a new file container. In addition, not being a Windows user, I don't know if there are are any significant differences between the Mac and Windows versions of QT 7. In any case, I just took a short sample clip, stored it on my hard drive via Aperture 3, opened the file in QT 7 Pro, rotated the clip in QT 7 Pro, and used the "Save As..." command to store the modified file. This modified file now plays correctly in current versions of the QT 7, MPEG Streamclip, and VLC media players. Have uploaded a copy of this file so you can download it, test playback in various players you normally use, and/or test convert it to your specific AVI audio and video compression formats.
SAMPLE ROTATED FILE
Can anyone tell me if this is still true with QT Pro, or if there are other solutions for resolving this outside of QT Pro?? I have tried a number of other converters, and found one that rotates, but aspect ratio not retained.
As indicated above, the file plays correctly for me in various media players and all media "Inspector" windows, including other third party media information utilities, confirm the correct dimensions and aspect ratio as displayed. As to AVI conversion, I test converted the uploaded file to AVI (DivX5/MP3) at original dimensions using VisualHub. (Also tried the VideoMonkey AVI encode but it limited the source 720p file to a 720x480 output and I did not know if you were agreeable to such a restriction.) Suggest you run similar tests with your preferred Windows converters to confirm/refute results on your system.

Aspect ratio converter

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