[gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[daid kahl]

Hello all,

I was getting some Japanese-bought DVDs to play correctly on my
laptop, and I found that I after I installed libdvdcss from portage,
portage did not think to rebuild kaffeine (or mplayer, etc), but that
was necessary to get full viewing functionality.

In the first case, I wonder if libdvdcss should be pulled in by the
dvd USE flag.  Secondly, I think portage ought to be smart enough to
know to rebuild programs in such a case.

It's no big thing of course, but I wonder if anyone else has thoughts on this.

Regards,
daid

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Jesús Guerrero]

On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com> wrote:
> Hello all,
> 
> I was getting some Japanese-bought DVDs to play correctly on my
> laptop, and I found that I after I installed libdvdcss from portage,
> portage did not think to rebuild kaffeine (or mplayer, etc), but that
> was necessary to get full viewing functionality.
> 
> In the first case, I wonder if libdvdcss should be pulled in by the
> dvd USE flag.  Secondly, I think portage ought to be smart enough to
> know to rebuild programs in such a case.

Nope. What you have to do is to set up the correct use flags for xine-lib
(dvd). All the dependencies will be pushed, you don't even have to
implicitly install libdvdcss. When a given use flag is changed portage will
detect and recompile all the required packages with a simple emerge -auDVN
world.

-- 
Jesús Guerrero

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Dale]

Jesús Guerrero wrote:
> On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com> wrote:
>   
>> Hello all,
>>
>> I was getting some Japanese-bought DVDs to play correctly on my
>> laptop, and I found that I after I installed libdvdcss from portage,
>> portage did not think to rebuild kaffeine (or mplayer, etc), but that
>> was necessary to get full viewing functionality.
>>
>> In the first case, I wonder if libdvdcss should be pulled in by the
>> dvd USE flag.  Secondly, I think portage ought to be smart enough to
>> know to rebuild programs in such a case.
>>     
>
> Nope. What you have to do is to set up the correct use flags for xine-lib
> (dvd). All the dependencies will be pushed, you don't even have to
> implicitly install libdvdcss. When a given use flag is changed portage will
> detect and recompile all the required packages with a simple emerge -auDVN
> world.
>
>   

I think this is a typo.  The command should be emerge -auDvN world.  The
upper case V would only print the version of portage.  That should
therefore be a lower case v.

I wish I could type better too.  LOL  After proofing a message a dozen
times, I still find a boo boo after hitting the send button.  :/  Maybe
it is the keyboard?

Dale

:-)   :-) 

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Jesús Guerrero]

On Sun, 04 Oct 2009 21:19:04 -0500, Dale <rdalek1967@gmail.com> wrote:
> Jesús Guerrero wrote:
>> On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com> wrote:
>>   
>>> Hello all,
>>>
>>> I was getting some Japanese-bought DVDs to play correctly on my
>>> laptop, and I found that I after I installed libdvdcss from portage,
>>> portage did not think to rebuild kaffeine (or mplayer, etc), but that
>>> was necessary to get full viewing functionality.
>>>
>>> In the first case, I wonder if libdvdcss should be pulled in by the
>>> dvd USE flag.  Secondly, I think portage ought to be smart enough to
>>> know to rebuild programs in such a case.
>>>     
>>
>> Nope. What you have to do is to set up the correct use flags for
xine-lib
>> (dvd). All the dependencies will be pushed, you don't even have to
>> implicitly install libdvdcss. When a given use flag is changed portage
>> will
>> detect and recompile all the required packages with a simple emerge
>> -auDVN
>> world.
>>
>>   
> 
> I think this is a typo.  The command should be emerge -auDvN world.  The
> upper case V would only print the version of portage.  That should
> therefore be a lower case v.

Well spotted, yes, it's a typo.

Thanks for the correction. :)
-- 
Jesús Guerrero

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Stroller]

On 5 Oct 2009, at 02:44, Jesús Guerrero wrote:
> On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com>  
> wrote:
>> ...
>> I was getting some Japanese-bought DVDs ... to rebuild kaffeine (or  
>> mplayer, etc)
>
> Nope. What you have to do is to set up the correct use flags for  
> xine-lib
> (dvd).

I think the css USE flag may also be required, at least by some  
packages.

Stroller.

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Jesús Guerrero]

On Mon, 5 Oct 2009 15:00:46 +0100, Stroller
<stroller@stellar.eclipse.co.uk> wrote:
> On 5 Oct 2009, at 02:44, Jesús Guerrero wrote:
>> On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com>  
>> wrote:
>>> ...
>>> I was getting some Japanese-bought DVDs ... to rebuild kaffeine (or  
>>> mplayer, etc)
>>
>> Nope. What you have to do is to set up the correct use flags for  
>> xine-lib
>> (dvd).
> 
> I think the css USE flag may also be required, at least by some  
> packages.

For each package it might be different (which  can be confusing) but for
xine-lib, it's the "dvd" use flag which controls this, and trigger the
dependency of xine-libs upon libdvdcss. You just need to look into the
ebuild to see it:

$ grep dvd /var/portage/media-libs/xine-lib/xine-lib-1.1.16.3-r1.ebuild 
IUSE="-aalib -libcaca -arts esd win32codecs nls +dvd +X directfb +vorbis
+alsa
        dvd? ( >=media-libs/libdvdcss-1.2.7 )



-- 
Jesús Guerrero

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Stroller]

On 5 Oct 2009, at 15:18, Jesús Guerrero wrote:

> On Mon, 5 Oct 2009 15:00:46 +0100, Stroller
> <stroller@stellar.eclipse.co.uk> wrote:
>> On 5 Oct 2009, at 02:44, Jesús Guerrero wrote:
>>> On Mon, 5 Oct 2009 10:31:53 +0900, daid kahl <daidxor@gmail.com>
>>> wrote:
>>>> ...
>>>> I was getting some Japanese-bought DVDs ... to rebuild kaffeine (or
>>>> mplayer, etc)
>>>
>>> Nope. What you have to do is to set up the correct use flags for
>>> xine-lib
>>> (dvd).
>>
>> I think the css USE flag may also be required, at least by some
>> packages.
>
> For each package it might be different (which  can be confusing) but  
> for
> xine-lib, it's the "dvd" use flag which controls this, and trigger the
> dependency of xine-libs upon libdvdcss. You just need to look into the
> ebuild to see it:
>
> $ grep dvd /var/portage/media-libs/xine-lib/xine-lib-1.1.16.3- 
> r1.ebuild
> IUSE="-aalib -libcaca -arts esd win32codecs nls +dvd +X directfb  
> +vorbis
> +alsa
>        dvd? ( >=media-libs/libdvdcss-1.2.7 )

I didn't mean in any way to debate your statement about xine-lib -  
just to add that css may be required for some _other_ packages.

It transpires that the only packages I seem to have on my systems  
using the css USE flag are rippers (undvd & k3b), so I apologise for  
my mistake.

I actually find this a little surprising. I might have thought that  
the devs might have separated the decryption and playback components:  
one could imagine it being legal to play back a region 0 DVD in some  
territories, but not to install or operate encryption "circumvention"  
software.

Stroller.

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Jesús Guerrero]

On Mon, 5 Oct 2009 15:42:22 +0100, Stroller
<stroller@stellar.eclipse.co.uk> wrote:
> On 5 Oct 2009, at 15:18, Jesús Guerrero wrote:
> 
> I actually find this a little surprising. I might have thought that  
> the devs might have separated the decryption and playback components:  
> one could imagine it being legal to play back a region 0 DVD in some  
> territories, but not to install or operate encryption "circumvention"  
> software.

Yes, I agree, USE flags are a bit fuzzy. Even if legality wasn't a
problem, still it's not accurate to use such a name for an use flag that
adds support for decryption. It's even funnier when you realize that you
don't even need to enable it to play all the dvd's (only encrypted ones).
In such cases, the best thing is to fill an enhancement bug and hope for
the best. I might do that later if I manager to remember it.
-- 
Jesús Guerrero

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[daid kahl]

>>> I was getting some Japanese-bought DVDs ... to rebuild kaffeine (or
>>> mplayer, etc)
>>
>> Nope. What you have to do is to set up the correct use flags for xine-lib
>> (dvd).
>
> I think the css USE flag may also be required, at least by some packages.
>

Well, dvd and xine are both in my world file.  I tried adding css, but
there was nothing to rebuild (only about 8 packages USE css).

Maybe the question I should be asking is why libdvdcss wasn't pulled
in when I had the dvd USE flag turned on globally (since forever).

Regards,
daid

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[daid kahl]

2009/10/5 Jesús Guerrero <i92guboj@terra.es>:
> On Mon, 5 Oct 2009 15:42:22 +0100, Stroller
> <stroller@stellar.eclipse.co.uk> wrote:
>> On 5 Oct 2009, at 15:18, Jesús Guerrero wrote:
>>
>> I actually find this a little surprising. I might have thought that
>> the devs might have separated the decryption and playback components:
>> one could imagine it being legal to play back a region 0 DVD in some
>> territories, but not to install or operate encryption "circumvention"
>> software.
>
> Yes, I agree, USE flags are a bit fuzzy. Even if legality wasn't a
> problem, still it's not accurate to use such a name for an use flag that
> adds support for decryption. It's even funnier when you realize that you
> don't even need to enable it to play all the dvd's (only encrypted ones).
> In such cases, the best thing is to fill an enhancement bug and hope for
> the best. I might do that later if I manager to remember it.

Yeah, I'm agreeing about this notion.  Particularly with the legality
issues, there might be some desire to separate watching unencrypted
DVDs from encryption.

I suppose if the enhancement bug is filed, a suggested name for the
new USE flag is something like dvd-crypto.

Regards,
daid

Re: [gentoo-user] Portage should rebuild kaffeine after libdvdcss installed?

[Jesús Guerrero]

On Tue, 6 Oct 2009 14:22:23 +0900, daid kahl <daidxor@gmail.com> wrote:
> 2009/10/5 Jesús Guerrero <i92guboj@terra.es>:
>> On Mon, 5 Oct 2009 15:42:22 +0100, Stroller
>> <stroller@stellar.eclipse.co.uk> wrote:
>>> On 5 Oct 2009, at 15:18, Jesús Guerrero wrote:
>>>
>>> I actually find this a little surprising. I might have thought that
>>> the devs might have separated the decryption and playback components:
>>> one could imagine it being legal to play back a region 0 DVD in some
>>> territories, but not to install or operate encryption "circumvention"
>>> software.
>>
>> Yes, I agree, USE flags are a bit fuzzy. Even if legality wasn't a
>> problem, still it's not accurate to use such a name for an use flag
that
>> adds support for decryption. It's even funnier when you realize that
you
>> don't even need to enable it to play all the dvd's (only encrypted
ones).
>> In such cases, the best thing is to fill an enhancement bug and hope
for
>> the best. I might do that later if I manager to remember it.
> 
> Yeah, I'm agreeing about this notion.  Particularly with the legality
> issues, there might be some desire to separate watching unencrypted
> DVDs from encryption.
> 
> I suppose if the enhancement bug is filed, a suggested name for the
> new USE flag is something like dvd-crypto.

There was already a bug and it's now closed and fixed. Kaffeine now has a
css use flag. css has been chosen because already exists and has exactly
that purpose, and besides that, the library that does the work and is
pushed as a dependency to play encrypted dvds is called "libdvdcss".

http://bugs.gentoo.org/show_bug.cgi?id=287057

-- 
Jesús Guerrero