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You are here: MacNN Forums > Our Archives > General Archives > Digital Video & Audio Archives > Quicktime 4 & Mpeg-1

 
Quicktime 4 & Mpeg-1
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Mac Enthusiast
Join Date: Jul 2001
Location: Edison, NJ
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Aug 12, 2003, 03:48 AM
 
Is it true that starting with Quicktime 5, Apple disabled or no longer supported mpeg-1 editing in Quicktime?

If so, does anyone have an old installer I could try in Classic?
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Goodbye koobi
... we had fun, but Apple Repair and the years have not been kind to you... godspeed...
     
vvedge  (op)
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Aug 12, 2003, 04:02 AM
 
Heh, with a little more searching answered my own question:

http://docs.info.apple.com/article.html?artnum=120067

and it works too.
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Goodbye koobi
... we had fun, but Apple Repair and the years have not been kind to you... godspeed...
     
Nap
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Join Date: Oct 2002
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Aug 12, 2003, 05:35 AM
 
Originally posted by vvedge:
Heh, with a little more searching answered my own question:

http://docs.info.apple.com/article.html?artnum=120067

and it works too.
It is all smoke and mirrors, even in QT Player 4. Quicktime Player Pro has never really edited mpegs. All it did was change the way an mpeg is displayed. The underlying code of the file was never changed. That is why if you "cut" 90% of a 10 meg mpeg and save it with Quicktime Player the file is still 10 megs long. The entire mpeg file is embedded within a saved QT wrapper. If you don't believe me, save an "edited" mpeg. Then open it in a hex viewer, like Hex Edit. Search for the string mdat. following that string the intact mpeg file will be there, exactly like it was originally created. If you merge two mpegs, they both will be in there intact.
So removing the Edit commands when an mpeg-1 is loaded is actually more honest than letting people think they are editing the file.
     
Grizzled Veteran
Join Date: Dec 2000
Location: Finland
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Aug 12, 2003, 07:02 AM
 
Originally posted by Nap:
It is all smoke and mirrors, even in QT Player 4. Quicktime Player Pro has never really edited mpegs. All it did was change the way an mpeg is displayed. The underlying code of the file was never changed. That is why if you "cut" 90% of a 10 meg mpeg and save it with Quicktime Player the file is still 10 megs long.
He's right. The same applies to "Movie clippings" (screens that you drag from an MPEG file to the desktop), it's just a QT wrapper with dependencies that makes it so small.
     
vvedge  (op)
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Aug 12, 2003, 07:30 AM
 
Originally posted by Nap:

So removing the Edit commands when an mpeg-1 is loaded is actually more honest than letting people think they are editing the file.
I saw what you mean when I played around with 'editing' the mpegs. sometimes when I cropped down a file, the resulting file was bigger than the original.

Whatever, it's an ok shortcut for extracting say a clip from a long mpeg-1 and converting it to DV without having to covert the whole file. QT4 wont export though, so saving an "edited" mpeg using QT4, opening it back up in QT6 works. A bit clumsy, but it works. Exporting in QT6 wont demux the mpeg as far as I can see, so I think the sound is still lost.
--whats this button do?

Goodbye koobi
... we had fun, but Apple Repair and the years have not been kind to you... godspeed...
     
Addicted to MacNN
Join Date: Nov 2002
Location: Seattle, WA
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Aug 12, 2003, 10:20 AM
 
you might be interested in MissingMPEGEdit found here:

http://homepage.mac.com/rnc/
     
 
   
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