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JeremyJA
Currently Being Moderated

Serious Flaw in MPE?

Oct 21, 2011 2:31 PM

I have an issue that would be great if I could get worked out...

 

I'm using 60i AVCHD footage (.mts), with the appropriate timeline settings in Premiere Pro CS5.5.1. Export settings are to h.264 de-interlaced with default preset settings. However, when I export with the MPE on, the video fails to deinterlace, and merely exports as a progressive scan with the interlacing "burned in", i.e. each progressive frame has interlacing artifacts/lines on it. HOWEVER, if I turn MPE off before I render, the video renders de-interlaced perfectly. But I'm pretty peeved, because if MPE is so great, why won't it support one of the most basic rendering functions out there? This problem was also present in CS5.5.0, and it was not fixed by the update.

 

For reference, the applicable computer specs are:

 

Windows 7 Ultimate

Intel i7-960

12GB DDR3 RAM

nVidia GeForce GTX 470

 

Again, I would greatly appreciate it if someone could help out here. My render times have skyrocketed compared to when using MPE and frankly, I want the features that I paid for to be in the product.

 

-Jeremy

 
Replies 1 2 Previous Next
  • Currently Being Moderated
    Oct 21, 2011 3:54 PM   in reply to JeremyJA

    What are your exact export settings?

     
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  • Currently Being Moderated
    Oct 24, 2011 9:48 PM   in reply to JeremyJA

    I can't duplicate your issue here.

     

    However, my system is not your system.  You could try either or both of 2 techniques that should otherwise be redundant:

    1. Select every clip in your export sequence one-by-one and change the Field Options to Always Deinterlace.  You can't change the field options on multiple clips or on nested sequences.
    2. Create a matching progressive sequence and copy/paste all your sequence items from the interlaced sequence.  You could also do this step in combination with step 1 to get really really redundantly redundant.

    -Jeff

     
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  • Currently Being Moderated
    Oct 25, 2011 4:39 AM   in reply to JeremyJA

    My MTS clips are from a Sony NX5U.  Your camera records HD to MPEG4; if you have MPEG2 footage then your source footage is SD, not HD.  Reference: HDR-XR500V | 120GB HD Handycam® Camcorder | Sony | Sony Store USA

     

    Hardware MPE always deinterlaces and scales in Maximum Render Quality mode regardless of whether the sequence export settings check box is checked or not.  The only exception is if the Adobe Media Encoder gets involved (in some cases).  So if you are exporting from Pr and not using the AME, and if hardware MPE is in use, then high-quality, hardware-accelerated deinterlacing is in use.

     

    The fact that you are seeing:

    • interlacing artifacts baked in where there should be none.
    • loss of resolution during hardware MPE deinterlacing
    • software MPE producing green artifacts

    all indicate to me that you have hardware and/or software issues that are interfering or preventing Pr from doing its job properly.  I don't have any of those issues here with Sony AVCHD files and CS5.5.1, nor do I have to mess with "Always Deinterlace" or copying/pasting from sequence to sequence.

     

    Do you have any 3rd-party hardware installed, like Matrox or BlackMagic?  What software did you use to CC your footage?  You say your nVidia drivers are up-to-date -- is that directly from the nVidia web site or from somewhere else?  Regardless, it may be worth a complete uninstall/reinstall of Pr.

     

     

    -Jeff

     
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  • Currently Being Moderated
    Oct 25, 2011 7:24 PM   in reply to JeremyJA

    This is an error that results from having the Flash ActiveX control installed.  If you uninstall Flash ActiveX and then run the installer again, you won't get the error messages.

     

    -Jeff

     
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  • Currently Being Moderated
    Oct 25, 2011 9:04 PM   in reply to JeremyJA

    You can ignore those errors. See this:

    http://kb2.adobe.com/cps/902/cpsid_90243.html

     
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  • Currently Being Moderated
    Oct 26, 2011 9:45 PM   in reply to JeremyJA

    I'm banking on it's something specific with your media.  Possibly they're reporting progressive when they're upper field, or something along those lines.  I'd suggest posting a short sample media clip so that others can take a look.

     

    What does the project panel report your clips as? Progressive, or upper field?  Have you attempting overriding the field settings through Modify->Interpret Footage?

     
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  • Currently Being Moderated
    Oct 27, 2011 12:35 AM   in reply to JeremyJA

    Well, I tried out a combination of renders using your clip, and I'm not seeing any failure to deinterlace here.  Tried both CUDA vs software mode, 1 pass & 2 pass VBR.  They all look right.  (And the clip seems fine, definitely interlaced upper field.)  Here's a link to a zip with the 4 variants in case you want to check it out yourself:

     

    https://acrobat.com/#d=cZBugz*ZtyvmNPxOAKxcVQ

     

    What are your sequence settings?  (I used the AVCHD 1080i square pixel editing mode, 1920 * 1080 | 16/9 | upper field first | 1.0 PAR for my test)

     

    And, as Jeff previously suggested, do you have any 3rd party plugins / codecs installed?

     
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  • Currently Being Moderated
    Oct 27, 2011 6:17 AM   in reply to Wil Renczes

    FWIW, I duplicated Wil's results.  CS5.5 deinterlaced the video pretty darn close to perfect.

     

    -Jeff

     
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  • Currently Being Moderated
    Oct 27, 2011 12:30 PM   in reply to JeremyJA

    Windows 7 Pro x64.

     

    -Jeff

     
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  • Currently Being Moderated
    Oct 28, 2011 11:36 AM   in reply to JeremyJA

    Is that what GPU-Z tells you?

     
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  • Currently Being Moderated
    Oct 28, 2011 11:42 AM   in reply to JeremyJA

    I think I've got the same situation as yours,

    I've asked the same question before but unfortunately no one answered.

     

    I have no problem with the clip that you provided,

    the clip rendered individually without artifacts.

    but me myself are having problem with mixed camera source,

    like a Sony DV running at 50i, and a DSLR running at 25p,

    when they mixed together and with MPE enabled.

    I got interlacing artifacts on output.

    Also when i mix your 60i video with my DSLR 25p video ( I know we shouldn't do that )

    I'm getting interlacing artifacts on the 25p part of the video,

    which is gone if the MPE is disabled.

     

    There's something interesting that is when you import the same clips into a 60p timeline,

    it renders normally even with MPE enabled.

     

    PS: my old question on this forum : http://forums.adobe.com/message/3751353#3751353

     
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  • Currently Being Moderated
    Oct 31, 2011 11:14 AM   in reply to JeremyJA

    I'm not seeing the same thing.

     

    My progressive exports of 30i material in a 30i sequence look the same with or without effects, with or without hardware acceleration.

     
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  • Currently Being Moderated
    Oct 31, 2011 12:29 PM   in reply to JeremyJA

    I'm still on CS5.0.3.  That may be the difference.

     

    Using a GTX 460.

     
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  • Currently Being Moderated
    Oct 31, 2011 1:51 PM   in reply to JeremyJA

    Hmmmm.

     

    Not really a plus in the "time to upgrade" column.

     
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  • Currently Being Moderated
    Oct 31, 2011 2:07 PM   in reply to JeremyJA

    I confirm that as well.

     

    Workaround: Change the project settings to MPE software only, before saving your premiere project.

    Does it affect to the rendering time, I don't know.

    I always try to remember to do that before saving the project, because it also changes the way dissolves behave.

    They are smoother with MPE software only mode.

     

    pena

     

    P.S.  If you have not uninstalled AME5, you can use it. It opens CS5.5 projects and  deinterlacing seems to be perfect.

     
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  • Currently Being Moderated
    Oct 31, 2011 2:51 PM   in reply to JeremyJA

    I just did one more quick test.

     

    PPro 5.03  > AME 5.0.1 deinterlacing OK

    PPro 5.03  > AME 5.5.1 NOT deinterlacing

    PPro 5.5.1 > AME 5.0.1 deinterlacing OK

    PPro 5.5.1 > AME 5.5.1 NOT deinterlacing

     

     

    Maybe it is better that you make official bug report with your better english.

     

    p

     
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  • Currently Being Moderated
    Nov 8, 2011 9:16 AM   in reply to JeremyJA

    Thanks for the test project, I have been able to reproduce the issue. As a workaround, if you nest your sequence in a progressive sequence with double the framerate before export the result will be correct. In your case of a 29.97UFF this would be a 59.94P sequence. Keep frame blending off.

     
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  • Currently Being Moderated
    Nov 8, 2011 9:19 AM   in reply to SteveHoeg

    Steve,

     

    Can you identify whether this is endemic to this particular footage, or something we should be on the look-out for with other media in Pr?

     
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  • Currently Being Moderated
    Nov 9, 2011 5:26 AM   in reply to JeremyJA

    I'm having a similar issue.  With MPE GPU acceleration on I get what I can best describe as "vertical streaks," which get especially bad when I have a title card or transition over the video.  When I change MPE to software only, no problem what so ever.  Here is a picture of what I'm getting with GPU acceleration on:sample.jpg

    Any suggestions?  Thanks in advance

     
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  • Currently Being Moderated
    Nov 9, 2011 5:32 AM   in reply to 80\'s Jeff

    I think your issue is completely different. It would be wise to start a new thread with all relevant details about your system, setup, and footage.

     
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