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| _nasturtium |
| Posted: May 23 2003, 12:43 PM |
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Quoting from http://www.virtualdub.org/docs_codecs :
"Microsoft has been improving their MPEG-4 codecs for some time; build 2700 introduced Microsoft MPEG-4, and when Windows Media Tools 4.0 beta appeared, version 4.00.0.3688 introduced the vastly improved V2 and V3 formats. Unfortunately, by the time 4.0 final came out, Microsoft locked the driver in the final 4.00.0.3845 build".
Fortunately I have that beta of NetShow Tools. 
It should also be interesting to note the screenshot in the VD1.5.2 documentation on Video Compression... |
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| fccHandler |
| Posted: May 23 2003, 07:56 PM |
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| QUOTE (_nasturtium @ May 23 2003, 08:43 AM) | | It should also be interesting to note the screenshot in the VD1.5.2 documentation on Video Compression... |
Indeed. The screenshot on Audio Compression is interesting too. 
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May the FOURCC be with you... |
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| i4004 |
| Posted: Jun 26 2003, 12:43 AM |
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on the issues of xvid ,see this link;
http://www.techimo.com/articles/index.pl?p...photo=33&page=8
[note the shopov's points on mpeg4 outside of usa+japan etc.
copy->paste the text to notepad if you run lo screen resolution so page didin't fit your screen......as it's worth reading...]
i tended to see this issue from christian's point of view (xvid=nonlegal) but after i see this usa stuff...hmmm....but then again there's issue of source:it was "mumosys" stuff that kicked off divxnetworks,projectmayo,and ultimately xvid,so who donated that code?was it any good?doesn't seem to be too shiny to me,but that's another story,no need to discuss it here.....
and i have a small question for experienced ones(as i'm not in the sceen that long);
it is said that the ms-mpeg4v3 was first unlocked (let's call that beta or so..) and then it was locked........
i'm interested in this:did ms unlock the mpeg4v3 AFTER the divx3 has been released...(ie. in the time when it didn't matter if mpeg4v3 was locked as anyone could use divx3...)
i thought that i read something like that,but now i see no logic in it,so if anyone can confirm on that........
/ivo
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| phaeron |
| Posted: Jun 26 2003, 06:01 AM |
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What's so interesting about the audio and video compression screenshots in the help file? I took those off my laptop.
The "MuMoSys" code, I believe, is the reference implementation for the ISO MPEG-4 standard.
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| Neo Neko |
| Posted: Jun 26 2003, 08:06 AM |
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| QUOTE (i4004 @ Jun 25 2003, 06:43 PM) | and i have a small question for experienced ones(as i'm not in the sceen that long);
it is said that the ms-mpeg4v3 was first unlocked (let's call that beta or so..) and then it was locked........
i'm interested in this:did ms unlock the mpeg4v3 AFTER the divx3 has been released...(ie. in the time when it didn't matter if mpeg4v3 was locked as anyone could use divx3...)
i thought that i read something like that,but now i see no logic in it,so if anyone can confirm on that........ |
Divx3 was created in response to the locking of the MSMPEG4vX encoders. Basically it is the exact same thing but with a byte or two patched to remove the lock. IIRC it was only MSMPEG4v3 that got locked. MSMPEG4v1&2 were always unlocked but all 3 perform rather poorly nowadays on their own. |
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| fccHandler |
| Posted: Jun 26 2003, 03:04 PM |
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| QUOTE (phaeron @ Jun 26 2003, 02:01 AM) | | What's so interesting about the audio and video compression screenshots in the help file? |
Microsoft MPEG-4 Video Codec V3
Windows Media Audio V1
Windows Media Audio V2
AFAIK, you can't get these to show up in the lists without patching the codec files somehow. Or maybe you got them from a codec pack? I don't think that they are exactly the same as the codecs you would get from Microsoft directly...
I could be wrong, but that's why I found it interesting.
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May the FOURCC be with you... |
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| Neo Neko |
| Posted: Jun 26 2003, 10:14 PM |
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No they show up without patching. Part of their annoyance. They are there but you can't use them. |
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| i4004 |
| Posted: Jun 27 2003, 09:51 AM |
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@fcc;avery and neko are right:mp43 shows up in the codec list,but it won't encode.....(this is the mp43 of "3920" flavour..the latest one...)
(note:on my sistem on win98 it shows,on w2k doesn't....probably w2k has it's own set of dll's for ms mp4-->the one without mp43...)
beta's of mp43 should encode,but they are not watchable on wmp every time..(depending on the directshow decoder u're using)...gej had a system where suddenly support for decoding(ie. watching) was broken (some update to wmedia system etc.) so he changed fourCC and got rid of ms tempering (hmm,better to say overwriting) with codecs alltogether etc.
for more about my misconception,see the thread i started on this issue....
i think i have found a reason i believed mp43 was unlocked.as it happens it was,but not by ms......(hehe)
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| Cyberman |
| Posted: Nov 19 2003, 09:06 PM |
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What about the Radium MP3 codec? Is it disallowed too?
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Matroska/MKV ? |
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| fccHandler |
| Posted: Nov 20 2003, 03:21 AM |
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Technically that codec is an illegal hack of the Fraunhofer MP3 codec, so yes, we should avoid recommending it or linking to it.
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May the FOURCC be with you... |
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| mangolicious |
| Posted: Feb 29 2004, 04:43 AM |
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why the hell aren't you supporting opensource codecs????????!!!!!!!
opensource does not equall illegal
period.  |
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| i4004 |
| Posted: Feb 29 2004, 12:12 PM |
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name one opensource,useable project that's completely "clean"....
(but it has to be completely clean!
i say that with other people (other than openspurce commune) writing standards(for example mpeg people),this is impossible....)
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| stephanV |
| Posted: Feb 29 2004, 12:14 PM |
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@mangolicious
chill out, dude 
no one is saying opensource (XviD, LAME) is strictly illegal
but you arent allowed to use it for anything else than 'educational use' AFAIK
so to prevent misunderstandings about when you are discussing it for educational use or for normal use,
the board has decided to not discuss it at all, at least that is a clear rule
there are forums to discuss such codecs, this is just not one of them
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| -Didi |
| Posted: Mar 13 2004, 05:35 PM |
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VirtualDub seems to be a real versatile tool - congratulations to the programmer
However, Quicktime is a widespread platform not to be ignored.
Is there a way in VirtualDub to use Quicktime codecs?
It would be really nice to directly encode with eg Sorenson or Apple mpeg-4.
It is possible to do so with other software, but these lack some of the VirtualDub features.
thanx
-Didi
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| stephanV |
| Posted: Mar 13 2004, 05:51 PM |
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you might wanna read this topic
or do a search for quicktime on this forum, you might get some solutions with converters or something
depends on what you want of course...
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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