Skip navigation
Currently Being Moderated

Encore insists on transcoding H.264 Blu-ray encoded file (Blu-ray legal)

Jan 4, 2012 6:20 AM

Tags: #adobe #h.264 #legal #blu-ray #encore #transcoding

I have a Blu-ray legal .m4v file encoded out of Adobe Media Encoder as H.264 Blu-ray VBR 2-Pass, maximum render, target 25Mbps, maximum 30Mbps.

 

My project is H.264, maximum 40Mbps.

 

Encore keeps listing the video file as untranscoded and wants to transcode it.

 

I've tried encoding just a portion of the video file instead of the whole thing using the same settings and when I bring this into Encore it recognizes it as Blu-ray legal and sets it to "Don't Transcode".

 

Can anyone think of a reason as to why this is happening?  I really don't want to sit through another eight hour encode that could degregade pq further.

 

Thanks!

 
Replies 1 2 Previous Next
  • Currently Being Moderated
    Jan 7, 2012 3:17 PM   in reply to HarpuaFSB

    Be sure you're looking at the Blu-ray info.  A lot of folks have made the mistake of looking at the DVD transcode status.

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 7, 2012 3:50 PM   in reply to Jim Simon

    If you are not looking at the wrong info, this may be a bug related to 2 pass vbr H264.

     

    http://forums.adobe.com/message/3876184

     

    See post 20 here, where Jeff (I think) is suggesting that this may not be a single 2 pass vbr bug, but a relationship between the profile also.

     

    http://forums.adobe.com/thread/697684

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 7, 2012 6:23 PM   in reply to HarpuaFSB

    What version of Encore are you running?

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 7, 2012 7:17 PM   in reply to HarpuaFSB

    Thanks for adding that and for filing a bug report.

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 8, 2012 9:43 AM   in reply to HarpuaFSB

    Try 1 pass.

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 8, 2012 10:17 AM   in reply to HarpuaFSB

    File a Bug Report  https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

     

    The more reports, the more Adobe knows it is a "large" problem, and the more chance of a fix

     
    |
    Mark as:
  • Currently Being Moderated
    Jan 8, 2012 2:15 PM   in reply to HarpuaFSB

    Just a test: what if you change the extention from m4v to mts before importing them into Encore?

    Can test it myself, never encountered the error.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 12:33 AM   in reply to HarpuaFSB

    I have a similar problem:

     

    Win7/64, Encore CS6.

    Imported file: .h264 (encoded with MainConcept), CBR, 34.99Mbps. Length: 6min.

    Preferences in Encore: BluRay, h264, CBR, max. 40Mbps, Main 4.1. (MainConcept Codec is shown on the display.)

     

    - After import Encore want to transcode the file.

    - "For fun" I let Encore do the transcoding procedure. It took one hour...

    - The result: The "old" file (.h264) is 1.494.861 kb. The transcoded file (Encore made a m4v) is 1.494.966 kb. Why is the new file bigger than the old?

     

    - Another attempt: I renamed the "old" file from ".h264" into "m4v". No cahnge to Encore - Encore wants to transcode as before.

     

    Any ideas or solutions?

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 5:08 AM   in reply to nordental

    While your problem fits the general topic of this thread, it is otherwise different. The H264 2 pass bug was fixed with CS6 (it was CS6 and not an update, right?). Also, you are exporting CBR.

     

    You have a project max of 40Mbps (which is video and audio combined), with CBR fairly high. Any spikes and  your file will not be compliant.

     

    Does anyone have a better bitrate viewer than "Bitrate Viewer"?

     

    http://www.videohelp.com/tools/Bitrate-Viewer-2

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 8:19 AM   in reply to Stan Jones

    The project prefernce is "max. 40Mbps".

    But the imported file - encoded by MainConcept before starting Encore using BluRay preferences Main 4.1 - is only 35 Mbps (CBR).

     

    1. I don't understand that Encore wants to transcode the 35Mbps file.

    2. I don't understand that the file after re-transcoding by Encore is bigger than before. I am wondering what Encore has changed in the file.

     

    The bitrate viewer says,  in the source file the peak is 24.180 kbps (average 17.494 kbps)

    and in the transcoded file by Encore the peak is 30.756 kbps (average 17.495 kbps).

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 11:27 AM   in reply to nordental

    - Another attempt: I renamed the "old" file from ".h264" into "m4v". No cahnge to Encore - Encore wants to transcode as before.

     

    The imported file is it exported as H.264 which generally gives mp4 or as H.264 BluRay which will give you m4v with multiplexer off (prefered) or m2t?

    If its mp4 it gets re-encoded.

    Max bitrate for BD vbr or cbr is 35.

    Make a screendump of your export settings in Premiere.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 12:46 PM   in reply to Ann Bens

    The imported file is a only-video file .264. I had edited the whole video in my Avid Media Composer - I never have worked with Premiere - and then I exported the file and encoded it with the MainConcept Reference BluRay-Encoder (CBR, 35Mbps) to a .264 video and an .ac3 audio file. And finally I want to import these files to Encore to add chapters and compile a bluray... without any re-transcoding...

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 1:54 PM   in reply to nordental

    Somehow your Avid does not make a BD compliant file to have Encore not re-encode.

    .264 it that the extention for the videofile?

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 2:15 PM   in reply to Ann Bens

    Yes, .264. Encoded from a Avid .mov with MainConcept AVCHD (BluRay compliant).

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 2:18 PM   in reply to nordental

    I think that is the problem: .264.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 2:53 PM   in reply to Ann Bens

    A .264 file from x264Pro or MeGUI that is BD-legal will import into En and be automatically set to Do Not Transcode.  So the file extension isn't the problem.  There are some esoteric H.264 parameters in x264 that must be set precisely in order to have En set the .264 file to DNT.  I suspect those same parameters will have to be set in MainConcept's encoder.

     

    If you want to jump in the deep end, here are the x264 parameters that produce BD-legal output that also make En happy:

     

    program --pass 2 --bitrate 16000 --stats ".stats" --open-gop bluray --interlaced --pic-struct --level 4.1 --bframes 3 --ref 4 --slices 4 --aud --nal-hrd vbr --b-pyramid strict --keyint 30 --min-keyint 3 --vbv-bufsize 30000 --vbv-maxrate 40000 --weightp 0 --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --output "output" "input"

     

    Obviously interlacing, bitrate, vbv-maxrate and such can be set as desired based on the source footage and delivery requirements.

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 4:59 PM   in reply to Jeff Bellune

    This should have been in the manual.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 9, 2013 5:57 PM   in reply to Ann Bens

    Well, x264 isn't part of En and I think the OP is using the stand-alone MainConcept encoder. H.264 Blu-ray from either Pr or En using the built in MC encoder always produces files that don't transcode in En if a proper preset is used.

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 10, 2013 2:31 AM   in reply to Jeff Bellune

    That's right, I'm using the standalone MainConcept Encoder.

     

    Nevertheless, I have the impression that Encore also uses the MainConcept, because in the advance settings of the transcoding, in the line "Codec" the "MainConcept" is displayed (I cannot change this and cannot see other possibilities of Encding codecs).

     

    However, I will control and compare theencoding parameters  of the imported .264 file...

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 10, 2013 3:13 AM   in reply to nordental

    Jeff: what i meant was this info about what legal BD parameters should be.

     

    I assume the standalone Mainconcept Encoder will not be any different from the one Encore is using (or is there?)

    So why not feed Encore the file from avid and let Encore encode.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 10, 2013 6:07 AM   in reply to Ann Bens

    Jeff: what i meant was this info about what legal BD parameters should be.

    Ah, I misunderstood.  Sorry about that.    You are correct -- that information should be available to the user.  Adobe assumes everyone will encode with the built-in suite tools, but that's just not the case anymore.

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 11, 2013 1:32 AM   in reply to Jeff Bellune

    Well, in the advanced settings of MainConcept (Standalone) I could not rearly compare the settings with Jeffs infos of the BD-specifications, because I used CBR and not 2-pass-VBR.

     

    Interested in the way how Encore decides if transcoding is necessary or not, I did several tries: I imported a 20sec-sequence, which I had first encoded with my MainConcept Ref.,  all with CBR, but with bitrates 35Mbps, 34Mbps, 33Mbps, 32Mbps, 31Mbps, 30Mbps.

     

    The result of these tries is, that Encore wanted to transcode all these imported files - except the 30Mbps file: Here "Don't transcode" !

    Therefore I think / conclude that the preferences in the MainConcept Ref., - which I had never changed -, are not the cause for the Encore limitation.

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 11, 2013 6:21 AM   in reply to nordental

    Interesting.  Do all files encoded below 30 Mbps show up in En as DNT?

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 12, 2013 11:12 AM   in reply to Jeff Bellune

    Hello, excuse me for perhaps a naive question, but what are the two principal reasons that serious professionals typically switch to the Main Concept standalone vs. the embedded one in AME?


    Alternatively stated, are there a few key advantages to the standalone MC (as opposed to the embedded AME version) that attracts discriminating professionals?

     

    Thanks, as always to both Ann and Jeff for being so INCREDIBLY helpful. 

     

    Matt Dubuque

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 12, 2013 1:06 PM   in reply to Matt Dubuque

    I haven't used the stand-alone version, and the MainConcept web site doesn't have a lot of info beyond the fact that their version is expandable by purchasing more modules.  I also don't know if they've tweaked their own encoder to produce better results than their licensed encoders.

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 12, 2013 1:25 PM   in reply to Jeff Bellune

    Thanks Jeff.... and lastly what are the two principal reasons that serious professionals might switch to MeGui?

     

    Alternatively stated, are there a few key advantages to using MeGui that attracts discriminating professionals?

     

    Thanks again.  We are so fortunate to have you here!

     

    Matt Dubuque

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 12, 2013 2:41 PM   in reply to Matt Dubuque

    x264 is a superior H.264 encoder.  Period.  The only problem with MeGui is it doesn't have MPEG-LA licensing, which is a huge drawback for serious professionals.  However, the x264Pro plug-in for Premiere Pro does come with an MPEG-LA license.

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Feb 12, 2013 4:16 PM   in reply to Jeff Bellune

    Thanks Jeff!  I guess there has been a small delay in releasing x264 for the Mac?  I was reading another thread that said that December 2012 was their target... Hmmmm.

     

    Matt

     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 7:23 AM   in reply to Matt Dubuque

    One more guy here trying to get Encore BD compliant files that don't have to be transcoded.

     

    I'm a bit odd in that I'm trying to get more video on the disc, hence I'm telling Adobe Media Encoder (CS6) to do a max bit rate of 8 Mbs -- obviously not caring much about the video quality.  What drives me crazy is that sometimes Encore will accept files as "Do Not Transcode", sometimes it wants to retranscode them -- I really don't think I've changed the Media Encoder parameters.

     

    Hopefully the people with the knowledge are still looking at this thread.

     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 7:43 AM   in reply to gr8bob
     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 1:23 PM   in reply to Jeff Bellune

    Tutorial was very nice!  But didn't directly answer my problem.  x264pro maybe be worth the $299, but really seems Adobe should make life easier in this area without it.  Found that if I keep video & audio in seperate streams coming out of CS6 Adobe Media Encoder, Encore accepts without retranscoding, at least for a couple of small samples I tested.  Hate to have a bunch of extra files hanging around though.

     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 1:32 PM   in reply to gr8bob

    Thanks for the compliment on the tutorial.

     

    x264 does a better job than MainConcept at encoding H.264 video, and the main point of my tutorial was to show you to use the free tools to get it safely into Encore.

     

    If you want to use the included encoder in Pr and En, then you still want elementary audio and video streams.  It's not a "bunch of extra files", it's how professionals handle their assets. 

     

    Jeff

     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 2:58 PM   in reply to Jeff Bellune

    Jeff, this is a great tutorial. I have followed your steps but i am receiving an error in MeGUI upon opening the application after the frameserving has begun in Pr. Once i open MeGUI, i get the error message "Unable to render the file. You probably do not have the correct filters".

     

    I am using CS5 and the source video is 1080i  29.97 fps. I considered using the x264 Pro trial version but it will not work in CS5.

     

    Really motivated to get this to work the correct way.

     

    thanks,

     
    |
    Mark as:
  • Currently Being Moderated
    Jul 31, 2013 3:19 PM   in reply to Jeff Bellune

    Well, actually "elementary streams" means double, not +1.  I often play files on BLU-RAY player from thumb drive.  I think I'll have to put video & audio back in single file to do that.  So elementary files are a hassle.  Multiplexed files that Adobe Encore creates are of type "m2ts", found in STREAM folder of Adobe Encore output.  These can always be imported as asset back into Adobe Encore without re-transcoding.  I wonder what's so magical about them compared to what comes out of Adobe Media Encoder?

     
    |
    Mark as:
1 2 Previous Next
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points