Hey :)

3 views
Skip to first unread message

T.Alexandru

unread,
Oct 4, 2007, 5:29:39 AM10/4/07
to AMV codec tools group
Hi guys... I am sorry I haven'tentered in a while, but I have some
personal problems :(. I'll be here next week with the user interface.

Dobrica Pavlinusic

unread,
Oct 4, 2007, 6:18:18 AM10/4/07
to amv-cod...@googlegroups.com
On Thu, Oct 04, 2007 at 09:29:39AM -0000, T.Alexandru wrote:
> Hi guys... I am sorry I haven'tentered in a while, but I have some
> personal problems :(. I'll be here next week with the user interface.

No problem. I also have to run off for a few days to finish other
stuff...

OOH, status right now is promising, but now quite working yet:

You can convert video using just linux box which plays on hardware
player (apart from glitz at the end where it sometimes reports format
error), but luminance is all wrong: colors are much brighter then they
should be. Oh, did I mentioned that frame is flipped so that you can't
read text? ;-)

On the bright size, display on players isn't that good, so turning your
player under slight angle might make picture quite good.

And player doesn't mind being turned upside-down for video playback...

Anyhow, if you wanted to quickly convert video to your player on Linux box,
it has some use, at least for me...

--
Dobrica Pavlinusic 2share!2flame dpa...@rot13.org
Unix addict. Internet consultant. http://www.rot13.org/~dpavlin

Tom Van Braeckel

unread,
Oct 4, 2007, 3:19:27 PM10/4/07
to amv-cod...@googlegroups.com
I'm sorry to hear about your personal problems Alex.

Dobrica: For me, the converter also already has some use, I converted some video to amv format for viewing on the train and stuff !

We should also support mac users - they also can't use the Windows AMV convert tools.


2007/10/4, Dobrica Pavlinusic <dpa...@rot13.org>:

Alexandru Trutia

unread,
Oct 6, 2007, 1:12:19 PM10/6/07
to amv-cod...@googlegroups.com
This really is cool! About that luminance thing, can't you try to play a bit with that luminance table? As far as I remember, that table is constructed from the jpg headers. You should be able to tweak that issue. I am not too sure. There is a thing. I can make you a DLL that you can call and it can flip the picture and apply filters like contrast, etc. But the thing is that I need a classic JPG file for that. I mean a valid picture with headers, not just the data. I'll be soon there to help. Monday I am releasing my first shareware application and we're striving to fix those nasty bugs.

I'll see you soon. Take care!
Alex.

2007/10/4, Dobrica Pavlinusic <dpa...@rot13.org>:

Vladimir Voroshilov

unread,
Oct 6, 2007, 2:01:24 PM10/6/07
to amv-cod...@googlegroups.com
2007/10/4, Dobrica Pavlinusic <dpa...@rot13.org>:

>
> On Thu, Oct 04, 2007 at 09:29:39AM -0000, T.Alexandru wrote:
> > Hi guys... I am sorry I haven'tentered in a while, but I have some
> > personal problems :(. I'll be here next week with the user interface.
>
Hi, Dobrica

> You can convert video using just linux box which plays on hardware
> player (apart from glitz at the end where it sometimes reports format
> error), but luminance is all wrong: colors are much brighter then they
> should be. Oh, did I mentioned that frame is flipped so that you can't
> read text? ;-)

try attached patch. But note: this is not solution.

With this patch AVI->AMV->AVI transcoding works well, while AMV->AVI
and AVI->AMV does not, thus not usable.

In other words:
If A' is table for decoding AMV's MJPEG, B is table used by ffmpeg's
mjpeg encoder,
then attached table is B' (ffmpeg's decoding), while we are need A
(AMV's mjpeg encoding)

I can't find A->A' and A'->A conversion algorithm, though.


--
Regards,
Vladimir Voroshilov mailto:voro...@gmail.com
JID: voro...@gmail.com, voro...@jabber.ru
ICQ: 95587719

mjpeg_enc_test.diff
Reply all
Reply to author
Forward
0 new messages