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Carbon Coder - Windows Media installation unable execute tasks

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Joost van Voorst
Carbon Coder - Windows Media installation unable execute tasks
on Dec 19, 2008 at 9:13:35 am

Crew,

I have a WIndows Server 2003 installation with Carbon Coder (3.12.0.12960). It is running various tasks including converting voice recordings to MPG, DV to MPG etc. Those are running fine. One of the conversion tasks is creating WMV files but fails every job due to:

Your Windows Media installation is unable to execute the required tasks.
Please check your file and/or encoding parameters, or reinstall the Application.

This is what I tried so far:

A restart of the service
A re-install of the application
A re-install of both the OS and the application
An installation a new version (3.12.0.12960)

Any suggestions are welcome.

We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Daniel Low
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 19, 2008 at 11:23:32 am

What settings are you using? What source are you using?

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Please post back saying what solved your problem. It could help others, and saying 'thanks' is free!


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 19, 2008 at 2:53:12 pm

Source File: varies from AVI, Flash, Mov Etc.

Target File:

VIDEO
1 stream(s) (448 kbps) selected. Click for viewing all streams.
WM Video Stream 1
384x216
Video 16:9 Pix 1:1
FPS 25
Video Bitrate 448
8kf/s
Image Q 50
Constrained VBR
Max kbps 1000

AUDIO
1 stream(s) (128 kbps) selected. Click for viewing all streams.
Audio Stream 1
Windows Media Audio 9.1
128 kbps
KHz 44.1
Bits 16
Stereo
2-pass



We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Daniel Low
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 20, 2008 at 12:24:22 am

1. Never use FLV as source.

2. When you say '8kf/s' do you mean 8 keyframes per second or.....?

__________________________________________________________________
Please post back saying what solved your problem. It could help others, and saying 'thanks' is free!


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Andy Mees
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 20, 2008 at 9:11:24 am

Daniel,
If one does have FLV as a source are you recommending some form of transcode prior to feeding it into Carbon Coder ... or is the "never use" rule meant more as a general avoid at all costs thing?
Cheers
Andy


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Daniel Low
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 20, 2008 at 10:38:33 am

I mean avoid at all costs. VP6 and Sorenson spark are delivery only codecs. Of course if that's all you've got then you don't have a choice, the quality will usually be rubbish.

__________________________________________________________________
Please post back saying what solved your problem. It could help others, and saying 'thanks' is free!


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Andy Mees
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 21, 2008 at 4:11:08 am

thanks for that . yeah, sometimes you just get what you get ... CC handles it pretty well but as always Garbage In Garbage Out


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 30, 2008 at 9:35:22 am

Crew,

Thank you for sharing your thoughts. SInce this system is serving a newsroom I don't have control over the source codecs being fed to the Carbon Coder. Besides that the "to use or not to use FLV" is an entire different discussion. Interesting, but not very valuable to the problem at hand.

Any suggestions on the phrase:

Your Windows Media installation is unable to execute the required tasks.
Please check your file and/or encoding parameters, or reinstall the Application.

We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Daniel Low
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 30, 2008 at 12:59:58 pm

You didn't answer my second question relating to your settings:

2. When you say '8kf/s' do you mean 8 keyframes per second or.....?


__________________________________________________________________
Please post back saying what solved your problem. It could help others, and saying 'thanks' is free!


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 30, 2008 at 1:21:59 pm

Sorry, yes you guessed right. keyframes a second.

We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Daniel Low
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 30, 2008 at 2:51:36 pm

8 keyframes per second is way way to many - you should be inserting a keyframe every 10 seconds, or once every 250 frames if you work in PAL. As you have it, the encoder is trying to set a keyframe every 3 frames.

It's quite likely that this is what is causing the problem.

__________________________________________________________________
Please post back saying what solved your problem. It could help others, and saying 'thanks' is free!


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Dec 30, 2008 at 4:10:52 pm

That IS an interesting suggestion... I'll have a glass of champagne tomorrow first, and I'll be back on monday to give it a try!

Have a good one!




We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Jan 7, 2009 at 3:17:34 pm

Crew,

The 8k/s I wrote down earlier is wrong. It is 8 s between kfs. So there is no keyframe issue at all.

I ended up re-building all the conversion tasks step by step. I came to the conclusion that the 2-pass during audio encoding is causing the issue. I changed this to a single pass and the issue is solved.

I'm sorry I can not explain exactly why this is the issue since I can't find any log files and Carbon Coder is not leaving a lot of information in the event manager.

We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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Joost van Voorst
Re: Carbon Coder - Windows Media installation unable execute tasks
on Jan 7, 2009 at 3:20:02 pm

Thanks for all the help.

We must never be afraid to go too far, for truth lies beyond. - Marcel Proust


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