Aspect Ratio in Compressor - Display bounds vs. Encoded bounds

I am late on getteng a file to a client that needs a program stream anamorphic mpeg file at 720x480 from me so I am using Compressor. I thought I had the aspect ratio settings right but when i sent them the file they said this: +*the aspect ratio is at 852 x 480 and we’re losing information on the screen. To correct this, we’ll need the files uploaded again either letterboxed or anamorphic at 720 x 480.*+
When I drag the file into compressor to look at the settings i see that the encoded bounds are 720x480, but the display bounds are 853x480, the pixel aspect ratio is set at NTSC CCIR 601/DV (16:9).
What am I doing wrong, and what can I do differently to give them what they need?
If you need any more info from me just let me know
Thanks!!

I don't know, I'm no expert so I am not sure why they see it as a problem. But again they are saying
+*"the aspect ratio is at 852 x 480 and we’re losing information on the screen. To correct this, we’ll need the files uploaded again either letterboxed or anamorphic at 720 x 480."*+
Do they just not know what they are talking about?

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FCP exporting 4.3 aspect ratio to compressor

I am exporting a project in 16.9 aspect ratio to compressor and it is outputting a file that looks like 4.3. In the inspector it reads project as 16.9, any suggestions?
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Are my options restricted because the signal is transmitted through an hdmi cable? Seems to be what other websites might be suggesting.

Bad Aspect Ratio from Compressor with DVCPROHD clips.

I created a 30 minutes long sequence in FCP using DVCPRO HD 720p24. I exported the sequence as a QuickTime movie using current settings... the QuickTime export looks perfect and playback displays the proper aspect ratio. I then sent this file to Compressor 3 with standard presets for AppleTV and iPod Video (large and small).
They all turned out with an incorrect (elongated, not squished) aspect ratio. All three exports. The source file looks fine but it is the main suspect as all conversions yielded the same result. Any suggestion on what can be wrong with the exported file or with the compressor 3.0 settings? Before installing Compressor 3, I did exported the file using QuickTime Pro and it turned out with the correct aspect ratio. Clips properties show correct display dimensions.
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I believe this is an (annoying) issue with QuickTime's Conform aperture property. For some reason, the Final Cut Studio apps do not write to this property. QuickTime Pro does, which is why those exports are the correct display ratio.
For DVCProHD material, opening your Compressor (or FCP or Motion) created movie in QT Pro and setting that property to Clean snaps the display of the movie in QT to 1248x702 (accounting for - and cropping - the overscan and blanking areas), while setting it to Production should give you the 1280x720 frame you desire.

Using Win 10 there is a need for an app to determine the full device display area and aspect ratio programitically; the dimensions are needed to create full-screen bitmap.

While Windows.Current.Bounds returns the application windows size, in order to create a full-screen bitmap my app would need to retrieve the full display area of the device. I cannot even get the aspect ratio.
Pre-Win10, using Windows.Current.Bounds I can create a bitmap of whatever size application window the user is seeing. When the user is showing my app at full screen, I can therefore get the full display area and aspect ratio of the device and create a full-screen
bitmap.
With Win10, the user would need to know to hide the taskbar and also display at full-screen before an app can retrieve the display area and aspect ratio using Windows.Current.Bounds.
Before Win10 it's obvious to the user that full-screen is or is not being used. When I create the bitmap, I create it to fit the application window. When the app is displayed full screen, the bitmap will be full screen. Also, the app starts full-screen so
I can detect the display area at startup if I need to.
With Win10, to the user the app "looks like" it is full screen with the taskbar displayed even though it's not really full screen.
I believe that in Win10 determining the full display area will be useful and not just retrieving the application window size.
musical9

Rob, Is this forum best way to get my suggestion to the development team?
Before Win10 it's obvious to the user that full-screen is or is not being used. When I create the bitmap, I create it to fit the application window. When the app is displayed full screen, the bitmap will be full screen. Also, the app starts full-screen
so I can detect the display area at startup if I need to.
With Win10, to the user the app "looks like" it is full screen with the taskbar displayed even though it's not really full screen.
Yes, Windows.Current.Bounds does work the same, but I believe that in Win10 determining the full display area will be useful and not just the application window.
musical9

In Win 10 technical preview cannot determine the full device display area and aspect ratio; the dimensions are needed to create full-screen bitmap.

While Windows.Current.Bounds returns the application windows size, in order to create a full-screen bitmap my app would need to retrieve the full display area of the device. I cannot even get the aspect ratio.
Pre-Win10, using Windows.Current.Bounds I can create a bitmap of whatever size application window the user is seeing. When the user is showing my app at full screen, I can therefore get the full display area and aspect ratio of the device and create
a full-screen bitmap.
With Win10, the user would need to know to hide the taskbar and also display at full-screen before an app can retrieve the display area and aspect ratio using Windows.Current.Bounds.
Is there any way to get the display area and aspect ratio of the device without asking the user to fully maximize the application window?
musical9

Rob, Is this forum best way to get my suggestion to the development team?
Before Win10 it's obvious to the user that full-screen is or is not being used. When I create the bitmap, I create it to fit the application window. When the app is displayed full screen, the bitmap will be full screen. Also, the app starts full-screen
so I can detect the display area at startup if I need to.
With Win10, to the user the app "looks like" it is full screen with the taskbar displayed even though it's not really full screen.
Yes, Windows.Current.Bounds does work the same, but I believe that in Win10 determining the full display area will be useful and not just the application window.
musical9

How can I change the aspect ratio of an image display

I am snapping a sequence of images and using imgPlot to diplay the images. However, due to my camera specifications [it's a Pulnix 9701 with Pixel Size 11.6μm (H) X 13.3μm (V)], the image I get displayed is elongated in the horizontal direction, i.e. if I snap an image of a square, I get a rectangle on my computer display.
How can I change the aspect ratio of the display on my computer? The only parameters I have seen so far just control what portion of the image is acquired or diplayed, but none actually changes the aspect ratio.
Thanks in advance for any help.

If you are using an analog camera, you can set the aspect ratio in MAX. This will correct for non-square pixels.
If you are using a digital camera, I don't think there is a way to fix it during acquisition. You could resample the image to correct the ratios, but that would be a slow, time consuming process.
One other possibility is that your computer monitor is in a mode which is not a standard 4x3 configuration. For example 640x480 and 800x600 are 4:3 ratios. 1200x1024 is not, which tends to distort your displayed images.
Bruce
Bruce Ammons
Ammons Engineering

How do I change the aspect ratio of source video in the event library?

I’ve imported video to iMovie 08 from a Canon Mini DV MD235 video camera. The video is recorded in widescreen format and plays back in widescreen when viewed from the iMovie event library (prior to doing any video editing). However, when I delete rejected frames from any particular video clip in the event library the video clip is automatically pillarboxed (i.e. switched from widescreen to 4:3 format). This squashes the video horizontally, stretches it vertically and leaves vertical black bars to the left and right of the video during playback. This automatic change in aspect ratio is occurring to the source video in the event library.
I’d be grateful for any help / advice on how I can convert the edited clips back to widescreen aspect ratio, so they display in the *event library* as they did when first imported into iMovie.

I don’t really want to clog up my hard drive with unwanted video and it’s easier to edit it from within iMovie.
Have you considered manually importing only portions of the clips you actually plan to use? Or, if you must import the entire clip, have you considered trimming externally in an application like MPEG Streamclip which will allow you to set frame level in/out points and then perform a "Save As..." operation that stores the select range of frames to an MOV file container retaining the proper flag?
Is there anything I can do from within iMovie to activate the 16:9 setting for these as yet unedited clips, so the same pillarboxing doesn’t happen?
Not sure what you mean by "unedited" here. If the files have been destructively split, the flag is gone and there is nothing you can do about it but re-compress. If you mean they are imported but as of yet whole and still contain their flags, then you have two options. The first is to edit non-destrctively within iMovie '08 and the second would be to do the trimming externally.
This second option is really fairly simple. Just close iMovie '08. Open MPEG Streamclip and load a clip you want to trim. Set your in and pout points, select the "Save As..." option, and store the files in the original Events folder with a new name. I would also recommend you perform these trims in their original time sequence so the "creation" date time groups (Finder attributes) are in time order also. When done with the loaded clip either delete it from the "Event" folder or move it to an archival location. When done with the last clip, close MPEG Streamclip, delete the Cache and Thumbnail folders from the Event folder, open iMovie '08 again, and go get a cup of coffee or tea while the files are re-thumbnailing. DO NOT DO THIS TO ANY EVENT WHICH CONTAINS FILES ALREADY USED IN ANY PROJECT. (I.e., this must be done before you start the actual project editing process.)
It seems odd to me that iMovie is doing this.
I suspect that as the application was originally written as an NLE, non-destructive, "by reference" application, the writers/updaters "overlooked" this facet when adding a "destructive" routine and did not provide for checks of this flag nor provide for copying it re-written segments.

Setting camera aspect ratio...

hey Guys,
I'm trying to get our video to be widescreen, but I'm not sure how to do that ( I'm using the 10.1 swc).
In the code for the stream manager, I see methods like set aspectRatio, but then I also see things like AR_LANDSCAPE.
Then in the documentation I only see a method like, "changeSizeStream()"
What's the correct way to set the aspect ratio and height/width of the encoded video stream?
thanks

Camera RAW does support 1:1 aspect ration. You just have to right click when using the crop tool to bring up the contextual menu, and select "Custom." Then type in your ratio.

Compressor 3 won't recognise aspect ratio

I have an FCP6 Project with many sequences all of which were edited in 16x9. The source footage is DVCPRO 720 and I have been editing in standard DV widscreen
I have tried exporting the time line through Compressor but it outputs it as 4x3. I have exported a quicktime movie from FCP and bringing that into Compressor but it still thinks it's 4x3.
In the AV Attributes tab in Compressor the video is as follows:
Encoded bounds 720x576
Display bounds 1024x576
Pixel aspect ratio CCIR 601 (16x9)
Why won't Compressor process these films in 16x9?
Thanks
Dean

I forgot to mention that the Quicktime movies play perfectly in Quicktime.

Display Modes and Aspect Ratio

I have a project that contains 4:3 and 16:9 footage. It is being prepared for 4:3 VHS release as well as 16:9 DVD release. For the DVD, I have exported all footage out of FCP from a 16:9 timeline. The VHS master is being sent to get captioned and the subtitle files for the DVD will be generated from this same master.
I originally thought I could just drop the video in its entirety onto two tracks in DVDSP, set the display mode of track 1 as 16:9 letterbox and the display mode of track 2 as 16:9 pan-scan. Then I could use chapter markers and stories to navigate as needed depending upon the aspect ratio of the original footage. The problem is this doubles the size of my DVD. I didn't think using the same footage on two tracks should increase the size as it is simply referencing the same file, but alas it does.
So, if instead I put only the true 16:9 footage on track 1 and only the pillarboxed (originally 4:3) footage on track 2, this solves the DVD size problem but screws up my subtitle timings, which I can certainly shift as needed but there are a LOT of small pieces in this project and it jumps between aspect ratios a lot so it will necessitate a lot of subtitle shifting.
Is there another better way to approach this? Hope my description was clear enough.
Thanks in advance.
P.S. Public thanks again to hanumang, whose responses to a previous related thread helped get me this far...

Hi Steve, thanks for your reply. I did not explain well. I am not planning to put both 16:9 and 4:3 versions on the DVD. What I am doing is using only 16:9 encoded video on the DVD. This is achieved by placing all footage (16:9 and 4:3) on a 16:9 timeline in FCP and encodeing to widescreen using Compressor. When I do this, the footage originally shot in 16:9 comes through unaltered while the footage originally shot in 4:3 comes through with pillarboxing.
Ultimately, I need widescreen footage to appear unaltered on 16:9 monitors and letterboxed on 4:3 monitors and I need the footage that was originally shot in 4:3 to appear pillarboxed on 16:9 monitors but unaltered on 4:3 monitors.
Based on the way I am exporting my footage from FCP, if I use a single track in DVDSP and place all the footage on that track and set it to 16:9 letterbox, I believe the footage that was originally shot in 4:3 will get postage-stamped, since the pillarboxing was created by FCP when 4:3 footage was placed in the 16:9 timeline.
The way I have been ensuring things appear correctly is to place ONLY the footage shot in 16:9 on one tack in DVDSP (set to letterbox) and ONLY the footage shot in 4:3 on a second track in DVDSP (set to pan-scan). They have to be on different tracks to allow for different displlay modes but that is necessary to insure things appear properly on all viewing possibilities.
Perhaps there is another way to set things up in FCP and export differently? Please let me know if you see another solution.
Thanks much!

1920x1080 footage in Compressor aspect ratio off

Hi guys,
I'm new to Compressor. I have an HD 1080p footage that I want to down sample to 720p or smaller, but keep the same 16:9 aspect ratio. It seems that Compressor always display and output at 4:3 aspect ration. My compressed video looks squished. What's going on? I'm trying to use ProRes setting.
Can any one help?
Shaun

I had the same thing. I was compressing some HDV to SD 16x9. In the preview it showed 4:3.
After it was compressed, it was in 16x9 format.
Have you tried just doing it and seeing what the results are?
Ken

Different display aspect ratios between Mac and PC

I am working with some NTSC DV .mov files (720x480). When I view them in OS X Lion (Quicktime 10.1), the Quicktime Movie Inspector shows the video correclty at 4:3 Aspect Ratio with the correct dimensions of 640x480 (using square pixels).
However, when I open the same video in Windows 7 using Quicktime 7.7.2, It shows the video as 720x480 (I guess it is interpreting the pixesls as square instead of 0.9091). Also, on the pc, there are black bars on the left and right margins. These don't appear on the mac.
Any ideas about why these are being interpreted differently by Quicktime on OS X and Windows?
Thanks.

I assure you that I can open the same file from an external drive with my Windows PC or my Mac and get the above results. I have over 500 of these videos, and they all behave the same way.
And I assure you that the files are not the same if the file display internals were chagned by your copy work flow.
I did discover in QT 7 that if I go to the "Presentation" tab in the "Show Movie Properties", that I can set the "Conform aperture to:" to "Clean" and it sets the movie to 640x480 and removes the black bars.
Underscan issues are separate from aspect ratio issues. They can be eliminated by masking or cropping along with the re-scaling—the latter of which I've have been pointing out would correct your 720x480 (3:2 aspect ratio) to 640x480 (4:3 aspect ratio) which was the original title subject of your topic.
I believe this is the difference.
http://support.apple.com/kb/HT4265
All NTSC SD DV content is encoded 720x480 matrix content whether the aspect ratio is 4:3 or 16:9. To properly trim and scale the content as described by this article, the file must contain a valid setting flagging whether the original content was recoded with a 16:9 or 4:3 aspect ratio. This has yet to be proven to be the case of your copied file which the media info window states is now playing as a simple non-anamorphic 720x480 whereas your current example reads as a simple non-anamorphic 640x480 file. In most cases this does not matter if the source content was 4:3 aspect. However, any file with a "lost" flag setting will be treated as 4:3 aspect file whether the original content was recorded as 4:3 or 16:9 so there is a potential for problems here.

Compressor Changes Aspect Ratio of Titles

In Final Cut Pro (6.0.6) I am editing HDV (1080) with a few titles. When I send the sequence to Compressor to export a file for Vimeo (1280x720), the video comes out fine, but the titles in the video are squished horizontally.
In FCP, my sequence is set to:
frame size: HD (1440x1080) (16:9)
pixel aspect ratio: HD (1440x1080)
In Compressor, my settings are:
encoder: Quicktime Movie (H.264, 5000kbps)
geometry: 1280x720
I've messed around with different pixel aspect ratios and frame sizes in both FCP & Compressor. I've even changed the aspect ratios of my titles in FCP.
The only way I can currently make it work is to export the sequence as a self-contained QT movie and then send that to Compressor.
Does anyone else have this problem? Thanks.

Though it's nice to be able to export directly to Compressor, I've gone back to my old method, which works fine: I export as a "Quicktime Movie", making sure I am set to "Current Settings", "Make Movie Self-Contained" and do not "Recompress All Frames".
I then send this file to Compressor and run my "VimeoHD" preset and everything comes out fine.
The extra step is worth the reliability and troubleshooting factor. You also don't have to have both FCP & Compressor open at the same time talking to each other, which means you have more resources devoted to your compression.
I still wonder if this problem happens in FCS3?

Tryin to keep 16x9 aspect ratio & down resize for Qt encoding ?

Hi all,
Im trying to take my sequence clip resolution thats at 1440x1080 (16x9)
and do a QT conversion (keeping the same 16x9 AR) and bring it down, so as to send the file in an email. I want to keep the aspect ratio
I did the division by 2 and the division by 4, but its coming out 4x3 ?
I'm sure Im doing something wrong here.
Im looking to get the 16x9 clip down to around 360-ish, give or take.
Any formulas
Thanks to all replies

Yo Patrick,
Compressor.
(I'm referring to the latest Compressor here ... an earlier version might be slightly different.)
If you use Compressor it is SO easy. Export your HD clip to Compressor. In Compressor in the Batch Window click the 'setting' and choose (down at the bottom) the Web 'size and format' you want.
In the Inspector window click the 5th icon over from the left (at the top) and choose 'Constrain to display aspect = 16:9'. You can also juggle and fine tune your clips details in the Inspector window.
Back in the Batch window set your Destination\Source to the folder you want to store you new Web clip in.
Click Output File Name and rename your clip to what you want.
Click submit.
Your web clip will be 16:9 at whatever size you've chosen.
Best of luck,
Ben

Pixel Aspect Ratio bug in Media Encoder export

Having a weird bug in media encoder exports that I can't seem to figure out. I have a 1080p sequence with a mix of 1080p footage and PAL DV assets. The PAL assets have a pixel aspect ratio of 1.0940. When I format them in my Premiere sequence, I am able to scale them correctly and they look fine. When I export them directly from premiere to broadcast standards it's also fine.
However, when I try to export these sequences in Media Encoder via File->Export->Media-> Queue using the same exact settings (I'm using a preset), Media Encoder formats the PAL assets as if they have square pixels. Thus, half of the footage in my sequences gets horizontally "squished." Note that this does not happen for footage that natively has square pixels, such as my 1080p camera footage.
Has anyone encountered this bug? It seems strange to me that Media Encoder would treat items in a sequence differently that Premiere during export, I was under the impression they were using the same rendering engine... It's really a problem as I'm going to have to crank out multiple versions of this 48-minute film and not being able to queue those exports is going to be a huge headache.
Using latest version of CC 2014.1 (8.1.0).

Screenshot of Premiere Export (fills screen):
Screenshot of Media Encoder export: (notice the pillar-boxing)

Aspect Ratio in Compressor - Display bounds vs. Encoded bounds

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