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Apple's Quicktime mpeg2 is just a decoder, not an encoder. Once you buy it it, it will just allow you to playback mpeg2 files in QT.
Instead, you can play, create and demux mpeg2 files with ffmpeg for free:
On Jan 2, 2006, at 10:50 AM, Harold Johnson wrote: Thanks Rob,
Someone told me about bbDEMUX the other day (perhaps you) and I used it to separate the MPEG2 file. I just looked into DiVA, and I see that tool is a transcoder; doesn't that mean I will simply be compressing the file again (albeit into another file type)? I'd rather not lose any more quality than has already been lost in compressing to MPEG2 in the first place. Please let me know if I'm wrong about this.
What I've discovered in the past couple of days: I *may* be able to convert the MPEG2 file to DV using a tool called MPEG Streamclip, but I'd still need to purchase Apple's Quicktime MPEG2 thing to do so. That's another $20; perhaps there's another (less expensive) way?
Harold
On 1/1/06, Rob Parrish <[EMAIL PROTECTED]> wrote: Ok here we go.
All the software I mention you can find via Google, and they are all
shareware or free.
You download the MPEG2
Then you use bbDEMUX to demux it. I'm not an expert on this, but
demux means you are separating out the video and audio portions of the
file.
You take the video portion to DiVA and you convert the file to full
720x480, 30 fps.
Then you use MAD Play to convert the audio to an AIFF.
You can then remarry the video and the audio in Final Cut or whatever
you use to edit.
I'm doing this from memory, but I think its all right. Feel free to
e-mail off list if you run into problems.
Rob
[EMAIL PROTECTED]
--- In [email protected], Harold Johnson
<[EMAIL PROTECTED]> wrote:
>
> Thanks Rob,
>
> Ultimately, I will be compressing for the 'net, but I like to begin all
> projects with the best possible quality to edit from. Would you mind
> explaining how to use the MPEG2 file? I'm currently on a Mac,
though I do
> have part-time access to a PC.
>
> Thanks,
>
> Harold
>
> On 12/31/05, Rob Parrish <[EMAIL PROTECTED]> wrote:
> >
> > --- In [email protected], Harold Johnson
> > <[EMAIL PROTECTED]> wrote:
> > >
> > > I've found a Public Domain video on the Internet Archive
> > (archive.org) that
> > > I want to sample from:
> > >
> > > http://www.archive.org/details/Medicusc1939_3
> > >
> > > The video is available in several formats, and I want to use the
best
> > > available quality video to begin editing/sampling from. Which
of the
> > > available formats is the best? Here's what's available:
> > >
> > > 64Kb MPEG4
> > >
> >
<http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3_64kb.mp4 >
> > (20
> > > MB)
> > > 256Kb MPEG4
> > >
> >
<http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3_256kb.mp4
> > >(47
> > > MB)
> > > Cinepack
> > <http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3.avi >(58
> > > MB)
> > > MPEG1
> >
<http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3.mpg >(191
> > > MB)
> > > MPEG4
> > >
> >
<http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3_edit.mp4
> > >(209
> > > MB)
> > > MPEG2
> >
<http://www.archive.org/download/Medicusc1939_3/Medicusc1939_3.mpeg >(507
> > > MB)
> > >
> > > Thanks for guiding fledging videoblogger,
> > >
> > > Harold J. Johnson
> > > http://podcasterherald.com
> > >
> >
> > Well Harold, you ask a complicated question. If you're just going to
> > compress for the web, I don't know the best answer. However, if you
> > want to have a 720x480, 30fps version, then MPEG2 is the way to go.
> > The conversion process is a bit time consuming, but you end up with a
> > very good looking movie. It can be done with freeware. Let me know
> > if that is is what you want and I'll tell you how to do it.
> >
> > Rob
> >
> >
> >
> >
> >
> >
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