Quantcast Avisynth: Ensurevbrmp3sync - digitalFAQ.com Forums [Archives]
  #1  
02-06-2003, 07:41 PM
rendalunit rendalunit is offline
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How does this filter work?
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  #2  
02-07-2003, 04:34 AM
Fiz Fiz is offline
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I had to use this for the first time recently. It maintains audio sync with the video.

My situation was I had a divx avi in 3 parts, plus a deleted scene.

My aim was to include the deleted scene into the video and trim off some excess from the end and in between. So my avs script looked like this.

Code:
plugindir = "D:\Avisynth\"
LoadPlugin(plugindir + "mpeg2dec.dll") 
LoadPlugin(plugindir + "GripFit_preview.dll") 
LoadPlugin(plugindir + "blockbuster.dll") 
LoadPlugin(plugindir + "legalclip.dll") 
LoadPlugin(plugindir + "sampler.dll") 
LoadPlugin(plugindir + "dustv5.dll") 
LoadPlugin(plugindir + "temporalcleaner.dll") 


disc1=AviSource("D:\DivX\LDisc1.avi") 
disc2=AviSource("D:\DivX\LDisc2.avi") 
disc3=AviSource("D:\DivX\LDisc3.avi") 
delscenes=AviSource("D:\DivX\LDelscenes.avi") 

part1=disc1.trim(0,147972)
part2=disc2.trim(1000,41460)
part3=delscenes.trim(0,26577)
part4=disc2.trim(41461,121691)
part5=disc3.trim(0,49103)


movie = fizconvert(part1+part2+part3+part4+part5).sampler(length=24)

return movie


function FizConvert(clip l)
{
return l.ConvertToYUY2().
\LegalClip().
\GripCrop(528, 576, overscan=2).
\GripSize().
\SpaceDust().
\TemporalCleaner().
\LegalClip()
}
The video was formed perfectly and I then loaded the AVS into vdub and did a save WAV. The problem I had was that whereever I had trimmed the video and the start frame was not 0, the audio had not trimmed at the right place. I was forever confused as to why some parts of the movie were completely out of sync.

I then used EnsureVBRMP3Sync in the line before each trim
e.g.
part2=disc2.EnsureVBRMP3Sync.trim(1000,41460)

and did an audio extract from vdub. Hey presto, it was perfectly in sync!

Hope this helps.
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  #3  
02-07-2003, 02:09 PM
rendalunit rendalunit is offline
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Hey that helps me a lot! I wasn't loading my .avs into vdub- just the appended avi's- so I guess that's why this filter wasn't working btw- that's a very cool script
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02-10-2003, 04:26 AM
Fiz Fiz is offline
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thanks , I'm trying to create all my avs scripts with a similar template. I know the filters I want to use so I keep them in a function and only change the bits at the top. Still learning the ropes though!
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