Custom Pixel Aspect Ratios

I am trying to create a custom pixel aspect ratio using the Interpretation Rules.txt file. Whenever I try this and save me new custom PAR it never shows up when I try to convert my footage to that PAR. This is what it looks like:
# only adds a custom pixel aspect ratio to the UI
# uncomment the next line to try it out
*, *, *, *, * = 1364/1000/"HDV to DV AR", *, *, *
Am I doing something wrong, I am confused why I don't get an option from the drop down box inside the interpret footage window that reads, "HDV to DV AR" (1.364)

It is the best method of getting my HDV video to appear the same size as my DV video in a widescreen DV timeline. I can do thinks like zooming in or changing the timeline aspect ratio to 1.333 but even then I have to change the PAR on both video for it to match and it changes the HDV a good amount. If i could just get this method to work it would be so easy. I don't understand why it is so hard to just make a custom pixel aspect ratio. It should be an easy thing to do.

Similar Messages

  • Custom Pixel Aspect Ratio (After Effects CC 2014)

    Hi All,
    How do you create a custom Pixel Aspect Ratio for After Effects CC 2014. I need a PAR of 3.3, as it would help me solve a technical problem i've been having with projection mapping.
    I've tried editing the Interpretation Rules.txt file which was hidden within the Users\Appdata\Roaming\Adobe\After Effects\13.1 Folder. To remove the last # so i can at least see that I can set up a custom PAR.
    But it doesn't appear in the drop down menu when creating a comp, or interpreting footage.
    I've also made the same change to the Interpretation Rules.txt file in the Premiere PRO CC 2014\Plug-ins\en_US\ folder.
    And I've restarted my PC after changes just incase Media Core wasn't updating itself properly.
    I can see the Custom PAR as an export option out of Media Encoder. But thats not what i need. I need to be able to correct a render which had a PAR of 3.3 without losing pixel information, much like an Anamorphic workflow.
    Anyway, Any help would be appreciated.
    Thanks!
    Evan

    Hi Rick,
    You're right, it's no known PAR... completely arbitrary and custom to this particular job. I'll run you through my process.
    I have a projection surface (a basketball court) Which needs to have content designed onto it which is viewable from one perspective point (camera 1) in the stadium. The problem is that Camera 1's viewing angle to the court is quite shallow.
    This is what Camera 1 sees:
    I will be generating like this for the surface so that it looks like a deep 3d surface from "camera 1"
    Now, the problem is that when I perspective correct the renders to fit what the projector will be projecting from straight down. There isn't enough pixel information for the height of the image. Meaning the pixels will smear.
    This is the image that would be projected from a top mounted projector to achieve the 3d effect from the image above, you can see the loss of information in the the height pixels.
    My solution for getting more information into the height is to render out of our 3d packages with a Pixel Aspect Ratio of 3.3. This was the sweet spot I found to get enough pixel information to match the pixel output of the projectors.
    The resulting render looks like this (note, the angle of the camera hasn't changed)
    As you can see, there is more height detail now, which will mean that that last row of pixels will be remain fairly sharp.
    So, at this point, I can render from my 3d applications, and conform to the projector dimensions, with very little information loss in the height of the projected image, and without compromising my 3d persepctive.
    I'm using the plugin "Camera Mapper" to project this render onto a plane which gets me the full frame of the projector at the right resolution, 4608 x 2304
    The tricky part how to composite elements into the scene in an intuitive way.
    If i want a horse to look like its jumping through the scene from "camera 1", like this:
    Then in the that contains all the information, It will look like this:
    Now that's all well and good, but it'll be harder to create realistic looking effects from this view, because they'll all need to be stretched.
    I'd like to retain all the image information and just view the comp as though it's squished down.
    I imagine this could be done easily by changing the comp settings to a PAR of 3.3.
    That way, all the pixel information remains, but i can design in a realistically proportioned composition.
    I hope that gets you up to speed on my issue, and my request for a solution.
    So, in summary. I'll I'm really looking for is a way to customise the PAR options so that I have a custom available that I can apply to this, and only this scene.
    Does this makes sense?
    Cheers,
    Evan

  • Exporting Custom Resolution Quicktime Movie with Custom Pixel Aspect Ratio

    I want to export some 16x9 sequences (and others) at different resolutions with different pixel aspect ratios.
    I have tried exporting as a Quicktime movie, but I get a codec error (with my required H.264 & AAC audio).
    I have tried exporting using Quicktime conversion, but there is nowhere to enter a custom pixel aspect ratio (if they added that as an option in “preserve aspect ratio”, that would be nice).
    I have tried exporting using Compressor, but it doesn't seem to accept my setting of pixel aspect ratio (HDV 1080i 16:9)—at least when I play back the video it is not using wide pixels.
    Thanks for any suggestions.
    G5

    I would like to have arbitrary control of the pixel frame size on export as well as arbitrary control of the pixel aspect ratio. However, in this case I specificially want to export some video in a 4:3 pixel arrangement (such as 360x270) but have its display be 16:9 via non-square (i.e. 4:3) pixel aspect ratio.
    In that sense, yes, I want to have something play back at 16:9, but at least some of my attempts to export video are squished at 4:3.
    While it may be possible to adjust the display in the Quicktime Player, the AVC video syntax as specified by ISO and MPEG standards bodies allow the specification of the pixel aspect ratio (actually sample aspect ratio in the standard) within the bitstream, and when it is there, the latest versions of Quicktime will (from my experience) render the video with the correct aspect ratio.

  • Interpretation rules not working; can't change pixel aspect ratio

    Hi,
    I'm following the instructions on the Adobe help site here...
    http://helpx.adobe.com/premiere-pro/using/aspect-ratios.html
    ...so that I may use custom pixel aspect ratios in the interpret footage dialog box.
    Unfortunately none of my changes to this file have any effect, and I'm clueless. These are cinemaDNG sequences and I'd like to keep working with them raw, otherwise I would take the time to export them and stretch them en masse through AE.

    Hi Kevin, a mix of BMPCC and 5Dmk3 Magic Lantern. ML raw at 60p has a non-standard PAR, most of my footage is shot in this format. I need 0.65, the closest is 0.9091. I was disappointed at first to find no ability to manually enter the value, then elated to find the Interpretation rules text file, then disappointed again to find it doesn't work...hoping this ends well!

  • How do i change pixel aspect ratio of an image in elements9?

    My camera only shoots in one format ratio, i would like to change images to 2:1, or 1:2. Without cropping or letterboxing. (Hence i think it is the 'pixel' aspect ratio i need to alter, not the 'picture' aspect ratio). Is this possible in elements or is it something else i can't do in elements; and just another reason why i should've bought CS5 instead??

    You can use a custom crop and Elements will automatically re-sample the pixels. You won’t get any distortion but you will sacrifice part of the image.
    In this example the original image was 3872 x 2592
    I divided 3872 by 2 and changed the height in the options bar to 1936
    Part of the sky had to go but still a pleasing result.
    Result
      You can position the crop shield anywhere. e.g. depending on the original you may want to loose part of the top or bottom. Simply move the image around to get the best composition then hit the green checkmark.

  • AME Export from HDV source: Pixel aspect ratio squeezed in Queue; ok in direct export.

    I have some existing HDV footage that was converted to Cineform codec (CFHD) in an .avi file that I need to export.  My target requires Windows media format (.wmv Window Media video 9).
    My output settings are the following:
    640x480, square pixels, 29.97, lower, VBR, 2 pass unconstrained, 800 kbps.
    When I export these files in a sequence directly from Premiere Pro CC (Export button), the pixel aspect ratio looks correct. (It looks ok in Premiere and in the Premiere Export window, too.)
    When I export using the Queue button in Premiere to AME CC, the video renders out squeezed, as if the aspect ratio is ignored.
    I can also see the squeezed video in the AME preview window when the file is rendering.
    This worked OK previously in Premiere 5.5.
    Is there a setting that controls this and allows normal rendering from the Queue?
    Using the Queue is much preferred to avoid bottlenecks in workflow.
    System: Windows 7 enterprise 64 bit, Lenovo W510, Core i7, 16GB ram.
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    Premiere Pro CC: 7.2.1(4)
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    Not sure if I am using the Mercury Playback Engine GPU Acceleration.
    Thanks.

    I'm using CC, updated today. (see system info at top).
    I'm starting to wonder if the codec info is not read correctly when using the Queue (Cineform codec).  I took your suggestions and created a new sequence with one clip and used the same settings.  I opened the export settings window in two separate ways:
    Export settings in Premiere (Ctrl M). All is good in the Source tab. PAR is interpreted correctly:
    I sent the export to the queue, and from the job in AME clicked the "Custom" link to retrieve the same settings window.
    However, the Source video PAR is not interpreted correctly:
    This must be related to why the render from the AME queue is not correct.

  • Pixel/Aspect Ratio Problem

    I'm midway through a huge project utilizing about a hundred stills in NTSC SD. I needed as much screen real-estate as possible for this so I used the D4/D16 Anamorphic pixel aspect ratio in Project Properties. My problem is that because I don't have a Kona or Decklink card, I don't have any preset codecs for this aspect ratio when I take it into FCP 5.1. The result is a squished widescreen frame when I output it from Motion to FCP. Not sure how to resolve this. Do I give it a custom frame size in FCP or what? Also, because this is all photos and graphics made within Motion, what's my best option in terms of quality for export from Motion to FCP? I'm assuming 8-bit or 10-bit uncompressed, but that's just a guess. Or is there a codec within Motion that I can export it as and it will come out in the correct aspect ratio in FCP?

    Then I'm thinking you want to use an anamorphic widescreen format in FCP that you can then set up in DVDSP and presumably project or display on a widescreen TV...
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  • HD frame sizes and pixel aspect ratios

    I have 1920 x 1080 HD footage shot on the Canon 5D Mark II and trying to add some filters to it in AE and then render as a 1280 x 720 file. None of the DVC PRO HD presets seem to get me to this frame size and when I've rendered to that frame size the renders come out distorted, indicating to me that the pixel aspect ratio is off. The DVC PRO HD preset renders a 960 x720 movie. I've been told that these will play at 1280 x 720 but am nervous about this as the work is for an event and I don't want anything to go wrong. I can't figure out how to render a movie that has the right dimensions and the right pixel aspect ratio.
    One workaround seems to be to render at 1920 x 1080 and import it into Final Cut and make it 1280 x 720 there. But of course this is an extra step.
    Any advice out there? Thanks in advance,
    Loch

    I don't quite follow. Feel free to define a custom composition size as you see fit. Indeed AE does not provide presets for everything, but given the plethora of possible output targets, this cannot be the goal of such an exercise. You should only use the DVCPro preset, if you plan on roundtripping without modifying the resolution, i.e. writing the modified clips back to a tape with the same specs/ via the same deck. The more interesting question here is, whether the stuff will actually be played via such a deck on the event or if it e.g. will be output from a BluRay disc via a Playstation or something. In the latter case they'd probably even prefer it to remain at the original full HD res for output via HDMI without extra conversions, as the 960x res would be of no use to them...
    Mylenium

  • Pixel Aspect Ratio Issues-FCP HELPP!!!

    Okay folks, so currently I am putting together my reel in FCP, however I am encountering a few issues. So my source formats are different in pixel aspect ratio, some was shot on the 7D, some on the Alexa, and some on super 16mm, and a few after effects animations. However all of it is HD, and in ProresHQ 422. My problem here is when I import all of my media into FCP if the timeline is set to square pixels, the HD(1440x1080) footage looks squished, and if I set the timeline to HD(1440x1080) the square pixel footage looks blocky, pixelated and super square.
    That said, some of the footage from the 7D is labelled as square and some is labelled as HD(1440x1080), and all the after effects stuff is square.
    Right now i am dealing with it and just leaving my timeline as green-preview render, so everything looks mostly normal. However whichever format is not that of the timeline, the footage is degraded a tiny bit, so that when I pause the footage it looks great, but in preview it is slightly blurry.
    My question is, is there a way to format everything as either square or HD(1440x1080), so it looks normal, or is there a way to use mixed media formats and not have the preview blur. I'm going crazy over here, as I just graduated and am in dire need of a reel so I can begin to apply for jobs, etc....Or is there a way to formate my prores setting to transform everything to square pixels?
    Thanks guys!

    You can use compressor to convert everything to square pixels, however there's no need to worry about how it looks in fcp when it's playing but not fully rendered.  Try exporting a short section (mark an in and out around the section - and going file:  export: quicktime Not quicktime conversion) with current settings.  If you render the material, it should look fine when you play it within fcp.  Unfortunately, the render settings in the sequence menu are not particularly intuitive, but do a little playing around with them if you've got the time.
    I prefer to convert all my sources to my intended pixel dimensions, frame rate and codec before I edit in fcp, but it may not be necessary in your case.

  • 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)

  • Problem with pixel aspect ratio

    I searched but found no answer.
    I have several Maya renders which are at a resolution of 720x486 and a pixel aspect ratio of 1.2. I composited my image sequences in after effects interpreting that 1.2 pixel aspect ratio. I then exported a quicktime movie using no compression at 24fps at a resolution of 720x480 NTSC 16:9.
    When I import this video into Encore 2.0 It comes out as full screen. Not only is it full screen, but when I preview the dvd, the video is blurry with scan lines and black bars on the left and right side. The menu however, is widescreen (I used a template as a test)and perfectly clear. I tried to select the asset and go to file>interpret footage, but this option is grayed out. I have also tried exporting an avi from after effects and importing that into Encore. It still will not let me set the pixel aspect ratio. I have read that After Effects does not embed the pixel aspect into exported videos. I have also read that I should export mpeg2 videos for use in Encore, however I do not see this option in After effects or Premiere Pro.
    What am I doing wrong? Any help is appreciated. If I left any information out that could be useful, please let me know.

    (Ack, for some reason I typed "DVI" and really meant "DV")
    Thanks for the response. I don't really care if I preserve the 4:3 aspect ratio. Or does my GL1 not use square pixels and I just never noticed it? It's strange I've never seen this problem until FCE HD.
    I have tried exporting a number of ways from FCE, including Export > QuickTime Movie... and Using QuickTime Conversion... For the latter, I typically set it to export as 720x480. I always export as video. The final export contains video clips as well as still images within the video.
    I am a bit embarrassed having to ask this question. I've been working with still images in photoshop for over a decade and worked a lot with video during that time as well.
    Thanks again.

  • Still image pixel aspect ratio wrong in exported video (but correct in Premiere renders)

    I've saved a targa still image from my footage and added it to the bin. It's properties show as follows:
    Image Size: 1440 x 1080
    Pixel Aspect Ratio: 1.3333
    This correctly matches my sequence settings as I'm working with 1080p widescreen footage.
    The image appears as expected in the Program window both before and after rendering previews. However, once I export my sequence as a video file, the still image is squashed (displaying incorrectly):
    A work around would be to stretch out the still to a width of 1920 in Premiere so that the export displays it back at its normal aspect ratio - which works - but I don't understand why I should have to do this.
    The other solution I found was to go to the bin and 'Modify > Interpret Footage' and although "Use Pixel Aspect Ratio from File" already shows the correct settings, to actively reset it (to the same pixel aspect ratio)  with the 'Conform to' option:
    This works too.
    Surely a bug?
    (using Premiere Pro CC)

    Thanks for the quick reply. But then why does the still's properties (in my bin) show the pixel aspect ratio as 1.3333 (not square pixels, 1.0) and should it not appear incorrectly in both the preview renders and the exported video ? This seems inconsitent to me.

  • A Little question about Pixel Aspect Ratio

    This doubt has been bugging me since I started edit HD formats.It's about pixel aspect ratio.
    Let's supose I have received some material in HD format,for instance.But I will deliver this material in another format, DV NTSC,for instance.
    The Pixel aspect ratio format of the material what I received and the way how I will deliver are different.What can I do to avoid this problem? Do I need to apply some plugin to solve this problem or when I export the final sequence Final Cut does this automatically?
    thank you

    The software takes care of it for you.
    As long as your conversion maintains the overall aspect ratio (ie 16:9), it is irrelevant what the individual pixels are doing.
    For example, if I convert DVCProHD 720p to ProRes 720p, it will look fine even though the DVCProHD started out with 960 pixels in the x dimension and the ProRes will have 1280.
    x

  • Has anyone else encountered a problem with poster frames not recognising a video's pixel aspect ratio

    I'm discovering a strange effect with some of the .mp4 videos I've upload into iBooks Author. They're Pal SD 4:3 .movs with a 16:9 pixel aspect ratio and they play out fine on the iPad. However the iBooks software seems to be ignoring the pixel aspect ratio of the poster frame. This leads to the situation.
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    2) I preview my book and it opens in iBooks on the iPad. But now the poster frame aspect ratio is 4:3
    3) I click on the video to start playing and it immediately jumps to 16:9 aspect ratio and plays out fine.
    4) If it scroll down a couple of pages and then scroll back the video poster frame has now reset itself to 4:3
    This sounds like a bug to me. Anyone else had it? Do you know if it's possible to report bugs without having a Developer licence?
    Thanks for any help
    Rob

    While there is no formal bug reporting method similar to what devs have w/apps, iBA does have a 'Provide iBooks Author Feedback' menu item.

  • Changing pixel aspect ratio during cropping (LR3.2)

    When I crop sometimes the pixel aspect ratio changes here. I.e. the pic get stretched in horizontal or vertical way/or compressed. Any body seeing this also? After some time it does change to normal, but it makes cropping rather difficult when in a hurry.

    I'm not sure I understand your problem, but I think what bothers you is the technique that has been in place in LR2 already for switching between landscape and potrait format of the crop, which in LR3 can be acomplished by the X keyboard shortcut.
    Moving your mouse horizontally or vertically on a locked aspect ratio, the format will change from portrait to landscape or vice versa. To enlarge or diminish the size of the crop, you have to move the mouse diagonally.
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