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Old 19th December 2002, 12:47   #41  |  Link
Stux
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3ivx Decoder Priority

Quote:
Originally posted by sillKotscha
... but imho the decoder does a very good job at least for me/ my eyes. I tested the decoder on high-bitrate encoded movies as well and I must say I can't see that much blurring - post processing seems to work quite/ very well. But one thing was just annoying... to test the decoder capabilities I had to uninst. DivX and untick ffdshow 'DivX 5 as supported codec' - is there an easier way of letting 3ivx D4_decoder decode divx encoded movies than just uninstalling everything divx related??...

cheers & thanks - Sill
We're working on adding priority settings for the various formats 3ivx can decode. This might not be in the next update, but we're working on it.
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Old 19th December 2002, 12:51   #42  |  Link
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Quote:
Originally posted by Neo Neko
It conflicts with about every other MPEG4 codec using Bytes instead of bits for datarate.
Point taken, we're thinking about adding a KBps/kbps switch
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Last edited by Stux; 12th January 2003 at 00:02.
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Old 19th December 2002, 12:53   #43  |  Link
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Re: 3ivx Decoder Priority

Quote:
Originally posted by Stux
We're working on adding priority settings for the various formats 3ivx can decode. This might not be in the next update, but we're working on it.
oh wow, great news

thanks Stux for your info - appreciated

cheers Sill
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Old 19th December 2002, 12:58   #44  |  Link
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3ivx MP4 compatibility

Quote:
Originally posted by mtrooper
Did anyone acutally make the MPEG4 DS filters work? They work for me if mp4 is without audio (be ti aac or cbr mp3), video was: a) file divx 5.02 with B-Frames and GMC b) Divx 5.02 without B-Frames and GMC c) XviD
the result was always the same.
mp4 files ware made by mp4creator60 0.9.7 and psytel's aacenc MPEG4 (also tried "normal" aacenc).
At the moment I'm open to suggestions.

Will try mpegable's DS filters.
Obviously, its supposed to work, but there is a lot of variance in MP4 files at the moment, and a lot of variance in AAC implementations.

We are working towards total mp4 compatibility, but need your help

If you find bugs, or problems with the codec suite the best thing to do is report it on our forums at http://forums.3ivx.com

Also, if you can make smallish test files available on the internet for us to get (ftp/http etc) then that helps a lot as we can then add them to our test suites.

Thankyou
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Old 19th December 2002, 13:01   #45  |  Link
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Quote:
Originally posted by Selur
hmm,.. I just did a small encoding comparison with different codecs (m$v3,divx4.12,DivX5.0.2, Xvid, 3ivX) on max quality level, and I have to say: 3ivX won, it didn't show any ringing artefacts, all the other codecs did.

Cu Selur
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Old 19th December 2002, 13:12   #46  |  Link
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Quote:
Originally posted by mikeson
@Selur:
I don't thing we should use postprocessing while measuring codecs.

Well, you should at least try watching the video with our post-processing filters, they're really quite good , and are a major part of the decoder

Quote:
Originally posted by mikeson
@all:

In my tests 3vix failed when using AviSynthYV12 and Fast recompress (other codecs work fine), so I had to use Full processing mode (so no advatage using YV12 )

There is a bug in PR2 which slipped in at the last moment, basically YV12 input doesn't work. Its already fixed in the CVS and will be in the next update.

We really do need bug reports and feedback, and the best place for bug reports/feedback is on our forums
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Old 19th December 2002, 13:13   #47  |  Link
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Re: Re: 3ivx Decoder Priority

Quote:
Originally posted by sillKotscha
oh wow, great news

thanks Stux for your info - appreciated

cheers Sill
You're welcome

I hope you guys enjoy playing with the codec
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Old 19th December 2002, 13:46   #48  |  Link
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@Stux:
Quote:
There is a bug in PR2 which slipped in at the last moment, basically YV12 input doesn't work. Its already fixed in the CVS and will be in the next update
It's good to hear.
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Old 19th December 2002, 17:36   #49  |  Link
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hi ^___^

>Well, you should at least try watching the video with our
>post-processing filters, they're really quite good , and are a major
>part of the decoder

maybe it's clean&fast, but i think it would be even better if it worked ^_^
IMHO, it lacks a emms.

for the encoder, not bad, it's approximatively as good as the 6 months
old XviD and DivX (basic) encoders i reinstalled for my testing.

Cheers,
MarcFD

(btw, i'm running on athlon XP 1600+ / 256 Mo DDR)
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Old 19th December 2002, 17:38   #50  |  Link
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@MarcFD:

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Old 19th December 2002, 19:39   #51  |  Link
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Quote:
Originally posted by Marc FD
maybe it's clean&fast, but i think it would be even better if it worked ^_^
IMHO, it lacks a emms.
Yes, I don't remember where exactly, but there was a missing emms
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Old 5th February 2003, 00:03   #52  |  Link
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D4 4.0.3 is out:
http://www.3ivx.com/download/windows.html

Cu Selur

Ps.: should work fine with Yv12
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Old 5th February 2003, 15:57   #53  |  Link
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Hmm.. I wonder if they have made any improvements in decoding section..

It made very good job with the last version, but it is kind of frustfrating if I have have to uninstall all my other DS filters to be able to decode through 3ivx.

So..does anyone know if there is any priority settings now or what? If not..then the situation is as bad as it was. But good for Mac users..
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Old 5th February 2003, 17:46   #54  |  Link
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Yes, there are priority settings now, just downloaded it a couple days ago and indeed they are there. Just out of curiousity, does this now mean that we can use ffdshow to decode the video now and just use 3ivx to parse the mp4 and playback the aac? Thanks.
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Old 5th February 2003, 18:59   #55  |  Link
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I tested it a week ago or so (with the last rc before this release)to decode an mp4 file. Worked fine but as far as I remember 3ivX was used for all the decodeing.
(tried a trailer from http://www.wsu.edu/~benp/trailers.htm with Xvid and aac audio, just redownloading it now to see if I remember right )

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Old 6th February 2003, 09:57   #56  |  Link
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I transcoded a short clip yesterday evening. The video was XviD stable (Oct. 2002 Koepi build). Audio was transcoded with AACMachine and the normal VBR preset. I muxed video and audio with mp4creator60.exe version 0.9.7.4. The file playes absolutely fine in WMP 6.4, but it is impossible to seek. Audio gets async with video. Tested that with and without 'interleave', with and without 'optimize'.

AFAIK, decoding is only done by 3ivx DS filter. Unregistering it had no effect, as WMP can't find a decoder then. Otherwise the filter has some priority settings, so that it isn't used outside MP4 files.

Last issue remaining is the seeking problem, I didn't find a solution for that yet. Hopefully they also implement AAC 5.1 decoding, that's what we are really waiting for I think.

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Old 6th February 2003, 10:36   #57  |  Link
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I think ffdshow has to be modified to decode output of mp4 splitter... that's not a 3ivx problem.
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Old 6th February 2003, 10:44   #58  |  Link
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I think so, too.

In Graphedit the 3ivx DS splitter filter's output pin doesn't connect to any other decoder.

Regards,

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Old 6th February 2003, 11:03   #59  |  Link
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Just wanted to say that decoding works flawlessly now and the priority settings too.
It's easy to use now with low encoding Divx-files, but it couldn't decode my own Xvid encodings with Koepi's 020203-build with b-frames, CM,QP and GM. Picture went totally blurry.

I wonder how that automatic quality post-processing works. Should I use it with bad encodings or just put that slider to maximum myself.

Also with non-standard resolutions like 621x341 there is this little green horizontal line at the bottom of the picture. This happens with ffdshow too, but NOT with Divx decoder.
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Old 6th February 2003, 11:07   #60  |  Link
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@Valky:

Did seeking work for you in MP4 file with AAC audio? I also can confirm, that with latest unstable build of XviD and some of the 'newer options' the 3ivx decoder went totally crazy.

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