| MPEG [message #3118] |
Mon, 14 November 1994 23:08  |
dean
Messages: 55
Registered: March 1993
|
Member |
|
|
> This is also of interest to me. I understand the points about creating GIF
> files and converting them to PPM. What do you use then to convert it to
> MPEG? If I had the name, I could probably find it with xarchie.
I used IDL to write out my images as GIF. Then I used the PBMplus util
GIFtoPPM to make a PPM file.
The UNIX program I used is MPEG_ENCODE on a SUN workstation. Another
person gave me the EXE and he couldn't remember the FTP site. I located
CMPEG10 and DMPEG10 with ARCHIE. They are DOS programs that will take a
PPM or Targa file and make a MPEG animation sequence. The UNIX program,
MPEG_ENCODE takes a series of PPM files and converts them to MPEG. I
found CMPEG easier to use, but it only handle small files. MPEG_ENCODE
handles larger files, but very difficult to use. I was lucky to find
someone that toyed with MPEG_ENCODE before.
Kelly Dean
CSU/CIRA
P.S. Additional information about MPEG can be found from the USER GROUP
COMP.GRAPHICS.....
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Re: Mpeg-1(2) reading [message #35555 is a reply to message #35469] |
Fri, 20 June 2003 12:47  |
Rick Towler
Messages: 821
Registered: August 1998
|
Senior Member |
|
|
"Haje Korth" wrote in message...
> It seems this message had been ripped from the original thread,
> so the context was not clear to me.
Hi Haje. Yes it was a little disconnected. I just remembered the post so I
knew where Oleg was coming from.
> As you know I recompiled your AVI2IDL for IDL 5.6 and managed to
> produce MPEG-4 (DIVX) files with it. I just hate the box that pops
> up to chose the codec. But I am not a good enough c-programmer to
> change this. :-)
>
> The problem with MPEG-1 (included in IDL) is that the quality is
> rather poor for scientific presentations, so I really like your
> solution!
I like it too! But credit goes to Oleg and Ronn. Oleg did the original
coding and Ronn rolled it into a DLM.
I have had success with the divX encoder too. I had a short animated line
plot which ranged from 3-5MB using the Indeo and Cinepack encoders and was
only 600k with superior quality using the divX encoder. Not too bad.
-Rick
|
|
|
|
| Re: Mpeg-1(2) reading [message #35556 is a reply to message #35469] |
Fri, 20 June 2003 12:02 |
Haje Korth
Messages: 651
Registered: May 1997
|
Senior Member |
|
|
Rick,
It seems this message had been ripped from the original thread, so the
context was not clear to me. As you know I recompiled your AVI2IDL for IDL
5.6 and managed to produce MPEG-4 (DIVX) files with it. I just hate the box
that pops up to chose the codec. But I am not a good enough c-programmer to
change this. :-)
The problem with MPEG-1 (included in IDL) is that the quality is rather poor
for scientific presentations, so I really like your solution!
Haje
"Rick Towler" <rtowler@u.washington.edu> wrote in message
news:bcvidj$1v8m$1@nntp6.u.washington.edu...
>
> "Haje Korth" wrote in message...
>
>> I don't understand where the problem with MPEG is? IDL can write MPEG
>> and the license for it is free. Just give RSI a call. This is what
>> we did and we received our license addition promptly.
>
> I had mentioned that IDL2AVI can read/write MPEG files. This isn't
entirely
> true and Oleg was correcting my statement. You can read/write MPEG-4
files
> using only IDL2AVI but not MPEG-1 or 2.
>
> -Rick
>
>
>
>> "Oleg Kornilov" wrote in message...
>>>> Take a look at Ronn Kling's IDL2AVI .dlm available on his website
>>>> www.kilvarock.com. It is a windows only dlm which provides an
> interface
>> to
>>>> the video for windows API. You can read and write MPEG files if
they
>> have
>>>> been encoded in the AVI file format.
>>>
>>> Although IDL2AVI routine can't read MPEG-1(2) or QT directly, you can
>>> use free 'frame server' Avisynth
>>> (http://www.math.berkeley.edu/~benrg/avisynth.html)
>>> that allow reading MPEG or QT from programs that can read just AVI.
>>> You can also download this from RSI user-contributed library -> Data
>>> readers and writers -> avi.zip at
>>> (http://www.rsinc.com/codebank/search.asp?FID=139)
>>> For writing Mpeg-1(2) with IDL2AVI you can use DVMPEG (I think even
>>> demo) from
>>> (http://www.darvision.com). After installation it appends mpeg-1(2)
>>> codek to multimedia subsystem, so you can create mpeg like AVI.
>>> Oleg
>>
>>
>
>
|
|
|
|
| Re: Mpeg-1(2) reading [message #35559 is a reply to message #35469] |
Fri, 20 June 2003 11:05 |
Rick Towler
Messages: 821
Registered: August 1998
|
Senior Member |
|
|
"Haje Korth" wrote in message...
> I don't understand where the problem with MPEG is? IDL can write MPEG
> and the license for it is free. Just give RSI a call. This is what
> we did and we received our license addition promptly.
I had mentioned that IDL2AVI can read/write MPEG files. This isn't entirely
true and Oleg was correcting my statement. You can read/write MPEG-4 files
using only IDL2AVI but not MPEG-1 or 2.
-Rick
> "Oleg Kornilov" wrote in message...
>>> Take a look at Ronn Kling's IDL2AVI .dlm available on his website
>>> www.kilvarock.com. It is a windows only dlm which provides an
interface
> to
>>> the video for windows API. You can read and write MPEG files if they
> have
>>> been encoded in the AVI file format.
>>
>> Although IDL2AVI routine can't read MPEG-1(2) or QT directly, you can
>> use free 'frame server' Avisynth
>> (http://www.math.berkeley.edu/~benrg/avisynth.html)
>> that allow reading MPEG or QT from programs that can read just AVI.
>> You can also download this from RSI user-contributed library -> Data
>> readers and writers -> avi.zip at
>> (http://www.rsinc.com/codebank/search.asp?FID=139)
>> For writing Mpeg-1(2) with IDL2AVI you can use DVMPEG (I think even
>> demo) from
>> (http://www.darvision.com). After installation it appends mpeg-1(2)
>> codek to multimedia subsystem, so you can create mpeg like AVI.
>> Oleg
>
>
|
|
|
|
| Re: Mpeg-1(2) reading [message #35567 is a reply to message #35469] |
Fri, 20 June 2003 08:57 |
Haje Korth
Messages: 651
Registered: May 1997
|
Senior Member |
|
|
I don't understand where the problem with MPEG is? IDL can write MPEG and
the license for it is free. Just give RSI a call. This is what we did and we
received our license addition promptly.
Haje
"Oleg Kornilov" <oleg.kornilov@mail.ru> wrote in message
news:9cc22753.0306200630.46c73ba8@posting.google.com...
>> Take a look at Ronn Kling's IDL2AVI .dlm available on his website
>> www.kilvarock.com. It is a windows only dlm which provides an interface
to
>> the video for windows API. You can read and write MPEG files if they
have
>> been encoded in the AVI file format.
>
> Although IDL2AVI routine can't read MPEG-1(2) or QT directly, you can
> use free 'frame server' Avisynth
> (http://www.math.berkeley.edu/~benrg/avisynth.html)
> that allow reading MPEG or QT from programs that can read just AVI.
> You can also download this from RSI user-contributed library -> Data
> readers and writers -> avi.zip at
> (http://www.rsinc.com/codebank/search.asp?FID=139)
> For writing Mpeg-1(2) with IDL2AVI you can use DVMPEG (I think even
> demo) from
> (http://www.darvision.com). After installation it appends mpeg-1(2)
> codek to multimedia subsystem, so you can create mpeg like AVI.
> Oleg
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
