Re: [CinCV] Color handling

2012-11-07 Thread John Coppens
On Mon, 5 Nov 2012 12:55:14 -0500
Monty Montgomery  wrote:

> Linear-space float RGB with black point at 0. and white point at 1.
> suits me fine, BTW.  It's conceptually the simplest/most correct
> option.  I'm just worried about practicality issues I'm too dumb see
> until I get there.

Any reason for not using 8/16/32 bit as a fraction (0-1)? So 8 bit would
have a resolution of 1/255, 16 bit of 1/65535 etc. All operations can
be done with 4 byte integer math.

Multiplying cannot cause overflows this way. Easy resolution change, too.
Lookup-tables can be used if necessary - a near impossibility with floats.

Possibly great speadups as integer ops can be executed in parallel,
either in the CPU or the GPU.

Just an idea.
John

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Re: [CinCV] Cinelerra Build for Ubuntu 12.10

2012-11-07 Thread Tom Judge
Eric:

Thanks for your help. I was fionally successful. Here is whgat I wound
up doing, in case anyone else stumbles down this path behind me :)

I went back and uninstalled the deb package that I had build for x264.
Then i also unistalled the deb package that I had built for ffmpeg.

here is the url i had used to make the newest and most wonderful ffmpeg:
http://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide

so anyway after removing those two home made .deb packages i went and
dis a sudo apt get for x264 and libx264-dev

Then i rebuild my ffmpeg deb package using the standard distribution
x264

Then I wen tbakc and in clienelrra I did the 
./autogen.sh 
./configure --with-buildinfo=git/recompile --enable-mmx --without-pic
make
sudo make install as per Raffa's Granma instructions (they work for
grandpa too)

and it all went ok and now I have a working cinelerra on my Ubuntu 12.10
system

Thanks again for your assistance and pointing me in the right direction
I an a happy Vidiot today!


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On Tue, 2012-11-06 at 15:27 -0500, Tom Judge wrote:
> ok I did that and it seemed to install but when i try to run cinelerra I get 
> this error
> 
> cinelerra: error while loading shared libraries: libquicktimehv-1.6.0.so.1: 
> cannot open shared object file: No such file or directory
> 
> i could not locate that package should I just try a rebuild
> 


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Re: [CinCV] Color handling

2012-11-07 Thread Einar Rünkaru
Hi

On Mon, Nov 5, 2012 at 7:55 PM, Monty Montgomery  wrote:
>
> Linear-space float RGB with black point at 0. and white point at 1.
> suits me fine, BTW.  It's conceptually the simplest/most correct
> option.  I'm just worried about practicality issues I'm too dumb see
> until I get there.
>

I like the idea.

As of 8 bit colospaces there is native clamping to 0..255.
My question are: what should happen if a result of an effect is out of
allowed 0..1. Should every plugin clamp its result? What should
happnen with possible results such as INF and NaN?

Einar

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RE: [CinCV] Cinelerra vs Cinelerra-CV

2012-11-07 Thread Nicola Ferralis
Dear All,

I finally migrated cinelerra's builds to use the new name "cinelerra-cv". The 
name change will affect all the related libraries. The new builds are available 
in the main PPA:

https://launchpad.net/~cinelerra-ppa/+archive/ppa

If you have been using such PPA, I recommend installing the cinelerra-cv 
package. This will remove the old series (cinelerra) and install the new one. 
It goes without saying that the older cinelerra builds are no longer available 
nor maintained.

Raffaella, would you please add a line in the webpage stating how to install 
cinelerra, once the the PPA has been enabled?

sudo apt-get install cinelerra-cv

Please let me know if you find any issue.

Thanks.
Nicola

 

From: blchu...@iinet.net.au
To: cinelerra@skolelinux.no
Subject: Re: [CinCV] Cinelerra vs Cinelerra-CV
Date: Tue, 6 Nov 2012 22:07:53 +1100


  

  
  
On 06/11/12 20:32, Raffaella Traniello
  wrote:


Ciao!
  

  

  On 11/06/2012 05:20 AM, Basil Chupin wrote:
  

  I looked at this-


http://cinelerra.org/getting_cinelerra.php


which shows that Cinelerra CV has not been compiled for Ubuntu
for quite


some time


  
  

  ... actually it shows only that I forgot to update that page!!
  

  

  Sorry about that.
  

  I'll fix it as soon as I can.
  

  

  Ciao!
  

  Raffaella
  




Ah! Well, there you are: the answer is readily at hand  :-) .



BC



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