significant quality loss moving from 6.2 to 6.6..

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fmw42
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Re: significant quality loss moving from 6.2 to 6.6..

Post by fmw42 »

mabu wrote: But I have ffmpeg installed already.

But I don't see it in your DELEGATES file. So perhaps IM does not recognize it. But again I am not an expert, but I thought mpeg got recognized by IM from ffmpeg, but cannot say for sure.

So try using ffmpeg standalone to make your mpg file and see if it is an better. Perhaps you have more arguments to control by using it alone.

Or be sure it is installed fully and then reinstall IM and see if it shows up in your delegates. Look at your config.log file in the IM download folder and see if there are any errors when IM checks for ffmpeg.

Just some thoughts as I am not an expert on videos.
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Re: significant quality loss moving from 6.2 to 6.6..

Post by mabu »

I discovered mencoder and it looks like it works amazingly well:
Last edited by mabu on 2011-05-11T22:26:04-07:00, edited 1 time in total.
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anthony
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Re: significant quality loss moving from 6.2 to 6.6..

Post by anthony »

Good luck. The options of mencoder is enormous and most seem to require you to have expert knowledge of video formats!
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Re: significant quality loss moving from 6.2 to 6.6..

Post by mabu »

thanks for everybody's help - I'm going to delete download links to save bandwidth

Whoever is writing the docs for IM should just put under "video", "USE MENCODER"... wow it's like 1000 times faster and actually WORKS.
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Re: significant quality loss moving from 6.2 to 6.6..

Post by anthony »

Can you give an example command.

I will then put that and your comment in the video formats area.
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mabu
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Re: significant quality loss moving from 6.2 to 6.6..

Post by mabu »

anthony wrote:Can you give an example command.

I will then put that and your comment in the video formats area.
This is what I used that I snipped from some other source online. It probably has extra options I don't need but it makes a nice time-lapse from .jpg files

mencoder -nosound mf://*.jpg -mf w=800:h=371:type=jpg:fps=15 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=2160000:mbd=2:keyint=132:v4mv:vqmin=3:lumi_mask=0.07:dark_mask=0.2:mpeg_quant:scplx_mask=0.1:tcplx_mask=0.1:naq -o output.mpg
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anthony
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Re: significant quality loss moving from 6.2 to 6.6..

Post by anthony »

Added to the Common formats video area.
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