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3ABNPublishing
3ABNPublishing
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Transcoding MPEG-2 Video, MP2 Audio

Jul 21, 2012 7:17 PM

I have Adobe Media Encoder CS6 as part of the CS6 Design and Web Premium bundle. I am trying to transcode a 58-minute, 5.3 GB video into MPEG-4/H.264. However, I'm running into difficulties using AME for this task.

 

First, when I open the video and adjust the settings, I don't get a preview. I can adjust the playhead to any point in the video, and I don't see anything; the input and output panels are both black. This makes it difficult to adjusting the cropping, which is important because the source video contains letterbox black regions that I need to cut out. It also makes it impossible to check for distortion (stretching, etc.) prior to encoding.

 

Second, AME says the source video has "No Audio". I know this to be false, because I can play the source video using QuickTime X and there is definitely audio there. Also, the shareware app ffmpegx can convert the video with the audio intact, but it is a more difficult application to use, and I think I could get better results using AME if I could get it to work.

 

According to ffmpegx, the source video has these tracks:

Video: MPEG-2, 720x480, 12000 kbps, 29.97 fps

Audio: MP2, 48000Hz, 256 kbps

 

Any help would be much appreciated!

1294 Views   5 Replies   Latest reply: Kevin Monahan, Jul 24, 2012 1:09 PM
 
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  • MMeguro
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    1. MMeguro,
    Jul 12, 2012 2:36 PM   in reply to 3ABNPublishing
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    Hello,

     

    Unfortunately, Desgin and Web Premium doesn't have the MPEG2 license, and AME cannot process MPEG2 video.

    In this case, AME should show you a warning message and shouldn't allow you to open those files in the first place.  But, it seems you could open your MPEG2 file.  What is your extention of your file?  Do you have any additionaly Adobe application installed besides Desgin and Web Premium?

     

    If AME supports MPEG2 due to an additional Adobe application installed such as Premiere Pro which has the MPEG2 license, the audio should be imported together if the file is multiplexed (Video and Audio combined in one file).  If not multiplexed, video portion and audio portion are in separate files and importing this video file shows "No Audio".

     
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  • 3ABNPublishing
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    2. 3ABNPublishing,
    Jul 12, 2012 2:47 PM   in reply to MMeguro
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    The file extension is ".mpg". I'm not sure which application created it and gave it that extension. The file creation part of the process belongs to another department at my company.

     

    In this case the audio and video are in one file. So I figure it must be multiplexed then.

     

    I do have other Adobe software, but no Adobe video editing applications. Is it possible to acquire an MPEG-2 codec that AME could use, separate from purchasing something like Premier Pro?

     
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  • 3ABNPublishing
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    3. 3ABNPublishing,
    Jul 12, 2012 2:55 PM   in reply to MMeguro
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    The following article suggests that the "MPEG-2" codec is installed with any suite that includes AME CS5.5. Was this dropped in CS6? Or is the article inaccurate? Or maybe there is something I'm missing, because the article also says that an additional "MPEG2" codec is included with Adobe video products.

     

    http://blogs.adobe.com/kevinmonahan/2011/09/13/installed-codecs-in-ame /

     
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  • MMeguro
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    4. MMeguro,
    Jul 12, 2012 5:08 PM   in reply to 3ABNPublishing
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    AME can get the MPEG2 license only via installing the supporting Adobe video apps.

     

    Thank you for pointing out the blog post.  There is no change in regard to the format licensing between CS5.5 and CS6.  You need to install those video apps listed there to get MPEG2. This blog post is misleading and apoligize for the confusion...

     
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  • Kevin Monahan
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    5. Kevin Monahan,
    Jul 24, 2012 1:09 PM   in reply to MMeguro
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    MMeguro wrote:

     

    AME can get the MPEG2 license only via installing the supporting Adobe video apps.

     

    Thank you for pointing out the blog post.  There is no change in regard to the format licensing between CS5.5 and CS6.  You need to install those video apps listed there to get MPEG2. This blog post is misleading and apoligize for the confusion...

     

    I'll make changes to the blog. Thanks for pointing out the error.

     
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