Nabble - Libvisual - Dev

Re: Libvisual-devel Digest, Vol 11, Issue 4

2007-11-08T15:11:49Z

> 2. Re: Lemuria for libvisual (Burkhard Plaum)
>ype: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi,
>
> Dennis Smit schrieb:
>> Just a suggestion.
>>
>> Maybe you can make the texture generation abstract (shoot me if it
>> already is)
>
> No, it isn't
>
>> so that the libvisual plugin itself can inject new realtime
>> textures ?
>
> Textures are carefully choosen according to the overall visual impression
> (e.g. come backgrounds allow an xaos texture, others don't).
>
> Injecting random textures is incompatible with this concept.
>
> Burkhard
>
>

Perhaps you could pull the textures from videojack. That way you could use
anything you like as a background (there are existing clients for LiVES,
camorama and v4l2).

For more info, see:
http://www.estudiolivre.org/videojack#English

Salsaman.
http://lives.sf.net

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Lemuria

2007-11-08T13:22:09Z

Hi,

try this:
http://gmerlin.sourceforge.net/lemuria-2.0.0pre2.tar.gz

In pre1 I goofed up the effect management.

Burkhard

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Gmerlin visualizer preview

2007-11-08T12:39:41Z

Hi,

I uploaded a preview release for the next gmerlin version here:

http://gmerlin.sourceforge.net/gmerlin-dependencies-20071107.tar.bz2
http://gmerlin.sourceforge.net/gmerlin-all-in-one-20071108.tar.bz2

The dependencies are only some codecs not included in some distributions,
for the visualizer you don't need any of them.

>From the all-in-one package, you need to compile and install gavl and
gmerlin (in that order). If you want a full gmerlin installation, you
need might want gmerlin-avdecoder and gmerlin-encoders as well.

The stuff is pretty new, so forgive me any disasters, you might encounter.

A screenshot of the visualizer is here:

http://gmerlin.sourceforge.net/images/visualizer_shot_1.png

The toolbar goes away, if the mouse is idle for some time.
You should be able to run all libvisual plugins (if not please tell me).
Audio comes from the recording source from your soundcard, so
it can be used for Audio-CDs or live concerts as well.

Burkhard

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Re: Lemuria for libvisual

2007-11-08T07:38:30Z

Hi,

Dennis Smit schrieb:
> Just a suggestion.
>
> Maybe you can make the texture generation abstract (shoot me if it
> already is)

No, it isn't

> so that the libvisual plugin itself can inject new realtime
> textures ?

Textures are carefully choosen according to the overall visual impression
(e.g. come backgrounds allow an xaos texture, others don't).

Injecting random textures is incompatible with this concept.

Burkhard

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Re: Lemuria for libvisual

2007-11-08T05:51:49Z

Just a suggestion.

Maybe you can make the texture generation abstract (shoot me if it already is) so that the libvisual plugin itself can inject new realtime textures ?

Cheers,
Dennis

On Nov 8, 2007 1:48 PM, Burkhard Plaum <plaum@...> wrote:

Hi,

Dennis Smit schrieb:
> As a suggestion:
> Have you considered rendering 2d libvisual plugins to the texture of
> lemuria ?

If I see a 2D plugin, I want to have inside lemuria for any price,
then maybe yes. Currently I use only goom, but not via libvisual.

In the meantime, I'm happy that the core liblemuria.so
depends only on OpenGL and GLU. Well xaos configure still checks
for XLib and other stuff, but that should be kicked out as well.

Burkhard

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Re: Lemuria for libvisual

2007-11-08T04:48:21Z

Hi,

Dennis Smit schrieb:
> As a suggestion:
> Have you considered rendering 2d libvisual plugins to the texture of
> lemuria ?

If I see a 2D plugin, I want to have inside lemuria for any price,
then maybe yes. Currently I use only goom, but not via libvisual.

In the meantime, I'm happy that the core liblemuria.so
depends only on OpenGL and GLU. Well xaos configure still checks
for XLib and other stuff, but that should be kicked out as well.

Burkhard

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Re: Lemuria for libvisual

2007-11-07T15:48:59Z

Cancel what I said about 256x256, it seems that I can't read the difference between < and > anymore.

On Nov 8, 2007 12:44 AM, Dennis Smit <dennis.smit@...> wrote:

Hello,

You are on a roll!, the great stuff keeps coming!

Some questions:
in the actor you limit the size to a max of 256x256, at least for the size requisition. Is that what you really want ?

As a suggestion:
Have you considered rendering 2d libvisual plugins to the texture of lemuria ?

Neat stuff!

Cheers,
Dennis

On Nov 7, 2007 9:34 PM, Burkhard Plaum < plaum@...> wrote:
Hi,

I've uploaded a first prerelease of lemuria-2.0.0 as plugin for
libvisual and gmerlin native here:

http://gmerlin.sourceforge.net/lemuria-2.0.0pre1.tar.gz

Older (but still valid) Screenshots are here:

http://gmerlin.sourceforge.net/lemuria.html

Please note the following:

- It's not heavily tested, especially not with other apps than
the (not yet released) Gmerlin visualizer.

- The plugin source actor_lemuria.c was inspired by
libvisual-ProjectM (both plugins behave almost identically).

- Still missing is configurable antialiasing (Integer slider,
range 0..2). Maybe some VisUI guru can help here.

- The gmerlin native plugin is useless except you want to
install gmerlin and gavl from CVS.

Maybe some of you want to test this and tell me about problems :)

Burkhard

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Re: Lemuria for libvisual

2007-11-07T15:44:34Z

Hello,

You are on a roll!, the great stuff keeps coming!

Some questions:
in the actor you limit the size to a max of 256x256, at least for the size requisition. Is that what you really want ?

As a suggestion:
Have you considered rendering 2d libvisual plugins to the texture of lemuria ?

Neat stuff!

Cheers,
Dennis

On Nov 7, 2007 9:34 PM, Burkhard Plaum <plaum@...> wrote:

Hi,

I've uploaded a first prerelease of lemuria-2.0.0 as plugin for
libvisual and gmerlin native here:

http://gmerlin.sourceforge.net/lemuria-2.0.0pre1.tar.gz

Older (but still valid) Screenshots are here:

http://gmerlin.sourceforge.net/lemuria.html

Please note the following:

- It's not heavily tested, especially not with other apps than
the (not yet released) Gmerlin visualizer.

- The plugin source actor_lemuria.c was inspired by
libvisual-ProjectM (both plugins behave almost identically).

- Still missing is configurable antialiasing (Integer slider,
range 0..2). Maybe some VisUI guru can help here.

- The gmerlin native plugin is useless except you want to
install gmerlin and gavl from CVS.

Maybe some of you want to test this and tell me about problems :)

Burkhard

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Re: VisParamContainer question

2007-11-07T15:38:37Z

On Nov 6, 2007 3:07 PM, Burkhard Plaum <plaum@...> wrote:

Hi,

Dennis Smit schrieb:

> You are completely right!!! my mistake.
>
> the example I posted was using macros for:
>
> VisCollectionIterator iter;
> visual_collection_get_iterator (&iter, collection);
> while (visual_collection_iterator_has_more (&iter)) {
> VisHashmapChainEntry *entry = visual_collection_iterator_get_data (&iter);
> visual_collection_iterator_next (&iter);
> }
> visual_object_unref (VISUAL_OBJECT (&iter));
> }
>

That didn't work either, but I succeeded with

VisParamContainer * params;
int num_parameters;
VisListEntry * list_entry;
VisParamEntry *param_entry;

list_entry = (VisListEntry*)0;

params = visual_plugin_get_params(visual_actor_get_plugin(actor));
while(visual_list_next(&params->entries, &list_entry))
num_parameters++;

/* ... */

list_entry = (VisListEntry*)0;

for(i = 0; i < num_parameters; i++)
{
visual_list_next(&params->entries, &list_entry);
param_entry = list_entry->data;

/* ... */
}

Also I parse the VisUIWidget to get more informations, like limits for
numeric parameters.

One thing could be improved I think: Currently the VisUIWidget adds labels
in addition to the mutators. This makes it difficult to get the label text
corresponding to a mutator without parsing the whole layout of the dialog
(or implemeting a VisUI backend, which is impossible in gmerlin).
If label was a member of VisParamEntry, things would become much simpler.

The VisParamEntry its name might be describing enough in most cases tho (which should be seen as a label).

In fact, gmerlins native parameter definitions are like a mixture of
VisParamEntry and VisUIWidget. The advantage is, that you have all informations
(label, tooltips, ranges, default values etc.) in one statically defined struct.
The disadvantage is that plugin programmers have no control over the actual layout
of the dialog, except the order.

I like to have the UI control, but I agree that limits should move to VisParam. I did some of that work on the 060 branch, but that died since I ran out of time a year ago ;(.

Now the good news: My libvisual wrapper works perfectly now with the
following features:

- All parameter types (using VisParamEntry and VisUIWidget) except
VISUAL_PARAM_ENTRY_TYPE_PALETTE and VISUAL_PARAM_ENTRY_TYPE_OBJECT
- Mouse, Keyboard and resize events
- Full OpenGL support
- Non-OpenGL plugins render using gmerlins native methods (this means
in most cases XVideo or OpenGL hardware scaling). A pretty decent software
scaler is used, if neither OpenGL nor XVideo are present.
- Embeddable into foreign windows using the XEMBED protocol
- Visualizations are run in a slave process, so plugins can link to
arbitrarily broken libraries, leak memory and crash as much as they want :)
Communication with the slave process is done via a bidirectional pipe.
- Tested with all plugins from libvisual-plugins-0.4.0 (except Gdkpixbuf) as
well as ProjectM. No crash observed until now.
- Uses gmerlins method of scanning plugin directories and checking only the
modules, which have a changed file timestamp (to save startup time).
The actual dlopen()ing is done by libvisual.

That is really really neat!

Cheers,
Dennis

Lemuria for libvisual

2007-11-07T12:34:18Z

Hi,

I've uploaded a first prerelease of lemuria-2.0.0 as plugin for
libvisual and gmerlin native here:

http://gmerlin.sourceforge.net/lemuria-2.0.0pre1.tar.gz

Older (but still valid) Screenshots are here:

http://gmerlin.sourceforge.net/lemuria.html

Please note the following:

- It's not heavily tested, especially not with other apps than
the (not yet released) Gmerlin visualizer.

- The plugin source actor_lemuria.c was inspired by
libvisual-ProjectM (both plugins behave almost identically).

- Still missing is configurable antialiasing (Integer slider,
range 0..2). Maybe some VisUI guru can help here.

- The gmerlin native plugin is useless except you want to
install gmerlin and gavl from CVS.

Maybe some of you want to test this and tell me about problems :)

Burkhard

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Re: VisParamContainer question

2007-11-06T12:54:40Z

> Today's Topics:
>
> 1. Re: VisParamContainer question (Burkhard Plaum)
>
>
> The wrapper code is here:
>
> http://gmerlin.cvs.sourceforge.net/gmerhttp://gmerlin.cvs.sourceforge.net/gmerlin/gmerlin/lib/bglv.c?view=markuplin/gmerlin/lib/bglv.c?view=markup

> Burkhard
>
>

Thanks for that, Bukhard. I'll see if I can use some of it in the LiVES
libvisual wrapper !

http://lives.cvs.sourceforge.net/lives/lives-plugins/weed-plugins/libvis.c?view=markup

Salsaman.
http://lives.sf.net

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Re: VisParamContainer question

2007-11-06T06:07:46Z

Hi,

Dennis Smit schrieb:

> You are completely right!!! my mistake.
>
> the example I posted was using macros for:
>
> VisCollectionIterator iter;
> visual_collection_get_iterator (&iter, collection);
> while (visual_collection_iterator_has_more (&iter)) {
> VisHashmapChainEntry *entry = visual_collection_iterator_get_data (&iter);
> visual_collection_iterator_next (&iter);
> }
> visual_object_unref (VISUAL_OBJECT (&iter));
> }
>

That didn't work either, but I succeeded with

VisParamContainer * params;
int num_parameters;
VisListEntry * list_entry;
VisParamEntry *param_entry;

list_entry = (VisListEntry*)0;

params = visual_plugin_get_params(visual_actor_get_plugin(actor));
while(visual_list_next(¶ms->entries, &list_entry))
num_parameters++;

/* ... */

list_entry = (VisListEntry*)0;

for(i = 0; i < num_parameters; i++)
{
visual_list_next(¶ms->entries, &list_entry);
param_entry = list_entry->data;

/* ... */
}

Also I parse the VisUIWidget to get more informations, like limits for
numeric parameters.

One thing could be improved I think: Currently the VisUIWidget adds labels
in addition to the mutators. This makes it difficult to get the label text
corresponding to a mutator without parsing the whole layout of the dialog
(or implemeting a VisUI backend, which is impossible in gmerlin).
If label was a member of VisParamEntry, things would become much simpler.

In fact, gmerlins native parameter definitions are like a mixture of
VisParamEntry and VisUIWidget. The advantage is, that you have all informations
(label, tooltips, ranges, default values etc.) in one statically defined struct.
The disadvantage is that plugin programmers have no control over the actual layout
of the dialog, except the order.

Now the good news: My libvisual wrapper works perfectly now with the
following features:

- All parameter types (using VisParamEntry and VisUIWidget) except
VISUAL_PARAM_ENTRY_TYPE_PALETTE and VISUAL_PARAM_ENTRY_TYPE_OBJECT
- Mouse, Keyboard and resize events
- Full OpenGL support
- Non-OpenGL plugins render using gmerlins native methods (this means
in most cases XVideo or OpenGL hardware scaling). A pretty decent software
scaler is used, if neither OpenGL nor XVideo are present.
- Embeddable into foreign windows using the XEMBED protocol
- Visualizations are run in a slave process, so plugins can link to
arbitrarily broken libraries, leak memory and crash as much as they want :)
Communication with the slave process is done via a bidirectional pipe.
- Tested with all plugins from libvisual-plugins-0.4.0 (except Gdkpixbuf) as
well as ProjectM. No crash observed until now.
- Uses gmerlins method of scanning plugin directories and checking only the
modules, which have a changed file timestamp (to save startup time).
The actual dlopen()ing is done by libvisual.

The wrapper code is here:

http://gmerlin.cvs.sourceforge.net/gmerlin/gmerlin/lib/bglv.c?view=markup
http://gmerlin.cvs.sourceforge.net/gmerlin/gmerlin/include/bglv.h?view=markup

The gmerlin-visualizer is also in good shape.

I'll now finish my libvisual port of lemuria. When I'm done, I'll give you some
CVS links, for those who want to try all this.

Burkhard

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Re: VisParamContainer question

2007-10-31T12:31:45Z

On 10/31/07, Burkhard Plaum <plaum@...> wrote:

Hi,

Dennis Smit schrieb:
> Parameters:
> There is no nth parameter function because parameters are entered in a
> hashmap by their name. You can iterate this hashmap tho!
>
> visual_collection_foreach_do
> (VISUAL_COLLECTION(&paramcontainer->entries), VisHashmapChainEntry *entry)
> {
> char *name = entry->key.key.string;
> VisParamEntry *paramEntry = VISUAL_PARAMENTRY(entry->data);
> } visual_collection_foreach_end;

That's not for 0.4.0, only for CVS, right? Depending on non-released libs is
not good. Any alternative, which works with 0.4.0? Maybe with
visual_collection_get_iter()/visual_collection_iter_next()?

You are completely right!!! my mistake.

the example I posted was using macros for:

VisCollectionIterator iter;
visual_collection_get_iterator (&iter, collection);
while (visual_collection_iterator_has_more (&iter)) {
VisHashmapChainEntry *entry = visual_collection_iterator_get_data (&iter);
visual_collection_iterator_next (&iter);
}
visual_object_unref (VISUAL_OBJECT (&iter));
}

> I have to admit that I didn't test this, and also won't deny that this
> should have been much easier.

Indeed :)

> Another (half completed) feature is the VisUI stuff that plugins can
> expose which is an abstract representation of the configuration UI.

I need to convert the parameter descriptions to gmerlins own format,
which can then be used for saving values in the registry, building GUI
dialogs or passing options on the commandline. Gmerlin plugins never
assume a GUI to be present, they just tell what parameters they have.

The same goes for libvisual actually, however there is a system to describe the potential gui, that is all ;)

Foreign plugins (ladspa or libvisual), get a small wrapper, which lets
them behave exactly as native plugins.

Sounds good!

Re: VisParamContainer question

2007-10-31T11:46:45Z

Hi,

Dennis Smit schrieb:

> Parameters:
> There is no nth parameter function because parameters are entered in a
> hashmap by their name. You can iterate this hashmap tho!
>
> visual_collection_foreach_do
> (VISUAL_COLLECTION(¶mcontainer->entries), VisHashmapChainEntry *entry)
> {
> char *name = entry->key.key.string;
> VisParamEntry *paramEntry = VISUAL_PARAMENTRY(entry->data);
> } visual_collection_foreach_end;

That's not for 0.4.0, only for CVS, right? Depending on non-released libs is
not good. Any alternative, which works with 0.4.0? Maybe with
visual_collection_get_iter()/visual_collection_iter_next()?

> I have to admit that I didn't test this, and also won't deny that this
> should have been much easier.

Indeed :)

> Another (half completed) feature is the VisUI stuff that plugins can
> expose which is an abstract representation of the configuration UI.

I need to convert the parameter descriptions to gmerlins own format,
which can then be used for saving values in the registry, building GUI
dialogs or passing options on the commandline. Gmerlin plugins never
assume a GUI to be present, they just tell what parameters they have.

Foreign plugins (ladspa or libvisual), get a small wrapper, which lets
them behave exactly as native plugins.

Burkhard

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Re: VisParamContainer question

2007-10-31T11:10:57Z

Hello!

I am very delighted to see that you are rendering libvisual within the Gmerlin visualizer, super cool stuff!

Parameters:
There is no nth parameter function because parameters are entered in a hashmap by their name. You can iterate this hashmap tho!

visual_collection_foreach_do (VISUAL_COLLECTION(&paramcontainer->entries), VisHashmapChainEntry *entry)
{
char *name = entry->key.key.string;
VisParamEntry *paramEntry = VISUAL_PARAMENTRY(entry->data);
} visual_collection_foreach_end;

I have to admit that I didn't test this, and also won't deny that this should have been much easier.

Another (half completed) feature is the VisUI stuff that plugins can expose which is an abstract representation of the configuration UI.

you can access the VisUI by calling: VisUIWidget *widget = visual_plugin_get_userinterface (visual_actor_get_plugin (actor));

There is a not finished gtk driver for this in CVS, lvwidgets package.

Good luck! and if you have more questions please go ahead!

Cheers,
Dennis

On 10/31/07, Burkhard Plaum <plaum@...> wrote:

Hi,

after a complete rewrite of the Gmerlin visualizer, I'm now able to render
all libvisual plugins I tried. Everything works perfectly up to now.

Now I want to support parameters: As far as I understand, I get a
VisParamContainer from a plugin, which describes all parameters a plugin
accepts. But how can I get a list of all parameters (name, type, limits)?

There is a function visual_param_container_get(), which returns
a VisParamEntry (which is probably what I need), but for that, I need
to know the name. What I miss is something like:

int visual_param_container_get_num(VisParamContainer *paramcontainer);
VisParamEntry * visual_param_container_get_nth(VisParamContainer *paramcontainer, int);

What's the official way to query all supported parameters from a plugin?

Burkhard

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VisParamContainer question

2007-10-31T07:00:30Z

Hi,

after a complete rewrite of the Gmerlin visualizer, I'm now able to render
all libvisual plugins I tried. Everything works perfectly up to now.

Now I want to support parameters: As far as I understand, I get a
VisParamContainer from a plugin, which describes all parameters a plugin
accepts. But how can I get a list of all parameters (name, type, limits)?

There is a function visual_param_container_get(), which returns
a VisParamEntry (which is probably what I need), but for that, I need
to know the name. What I miss is something like:

int visual_param_container_get_num(VisParamContainer *paramcontainer);
VisParamEntry * visual_param_container_get_nth(VisParamContainer *paramcontainer, int);

What's the official way to query all supported parameters from a plugin?

Burkhard

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libvisual on OLPC

2007-07-15T12:02:11Z

Hi,

My name is Darko Ilic, I'm a SoC student working with the Oregon State
Uni Open Source Lab on media player activity for OLPC project.

We're thinking about adding visualizations to audio player so I'm
considering your libvisual for the purpose.

My first question is about hardware requirements. Since XO machines
will be powered by AMD Geode LX-700 (433 MHz) I'm wondering are there
any visualizations we could run without much trouble.

I did some benchmarking with visualizations that come with amarok and
all of them are probably too much for XOs (they take 30-90% of my
PentiumM 1.6Gz CPU). Writing low-requirements visualization plugin for
XO is an option but I need you to tell me is it doable and if it is I
would ask for your estimation of the size of the project.

If this is anyhow relevant, we are using helix engine and the player
itself is written in python using python bindings for helix player.

Since I'm quite new to this kind of projects I would appreciate any
kind of advice you could give me.

I have checked out libvisual source and libvisual-hackground and I'm
trying to figure it out by my self but if you could point me to some
piece of code or documentation that would help me start, I would be
very very thankful.

Cheers,
--
Darko Ilic

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Re: 64 bit crashes (2)

2007-06-08T05:51:19Z

Please fill this one and the other at the bug tracker at www.sf.net/projects/libvisual

Thanks

On 6/8/07, salsaman@... <salsaman@...> wrote:

There is a crash in jess:

#0  0x00002aaaaab74915 in render_deformation ()
   from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#1  0x00002aaaaab753cc in renderer ()
   from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#2  0x00002aaaaab74011 in act_jess_render ()
   from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#3  0x00002b7f1cada7ff in visual_actor_run ()
   from /usr/lib64/libvisual-0.4.so.0

Regards,
Gabriel.
http://lives.sourceforge.net

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64 bit crashes (2)

2007-06-07T20:24:03Z

There is a crash in jess:

#0 0x00002aaaaab74915 in render_deformation ()
from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#1 0x00002aaaaab753cc in renderer ()
from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#2 0x00002aaaaab74011 in act_jess_render ()
from /usr/lib64/libvisual-0.4/actor/actor_JESS.so
#3 0x00002b7f1cada7ff in visual_actor_run ()
from /usr/lib64/libvisual-0.4.so.0

Regards,
Gabriel.
http://lives.sourceforge.net

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64 bit crashes (1)

2007-06-07T20:18:15Z

Hi guys,
I just got a 64 bit machine to do some testing on.

gforce crashes straight away; here is the backtrace:

#0 0x00002aaaaada6d20 in UtilStr::getCStr ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#1 0x00002aaaaada76eb in UtilStr::compareTo ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#2 0x00002aaaaada9e9e in XPtrList::FetchPredIndex ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#3 0x00002aaaaadaa845 in XStrList::FindIndexOf ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#4 0x00002aaaaadaa9cb in XStrList::Add ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#5 0x00002aaaaada5d87 in FileSpecList::AddCopy ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#6 0x00002aaaaad8eb8e in GForce::BuildConfigLists ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#7 0x00002aaaaad93de8 in GForce::GForce ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#8 0x00002aaaaadac77e in lv_gforce_init ()
from /usr/lib64/libvisual-0.4/actor/actor_gforce.so
#9 0x00002b6fb0a1f6a2 in visual_plugin_realize ()
from /usr/lib64/libvisual-0.4.so.0

Let me know if you need more info. I`ll post more bug reports if I find any.

Cheers,
Salsaman.
http://lives.sourceforge.net

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Some libvisual-plugins fixes

2007-02-05T14:52:39Z

Hi,

I found a few bugs in libvisual-plugins, patches attached.

First is pretty trivial: the lv_analyzer plugin doesn't get build due to a
small error in configure.ac.

Second is to fix library linking: the Makefile.ams use the LIBS variable
to specify the libraries to be linked in, but LIBADD should be used
instead. In cases where LIBS is set globally it works anyway (AIUI this
variable is supposed to be set by configure, so does get used), but
automake doesn't recognise it in the form actor_foo_la_LIBS. The result
is that the OpenGL plugins don't actually get linked against libGL.

Third is an 64-bit fix for JESS.

Fourth is a partial 64-bit fix for G-Force - it's enough to make the
plugin to run without crashing, but I couldn't get it to work properly.
I'm sending it anyway so that if someone else wants to fix it (I might try
again myself some time, but no promises...) they don't have to start from
scratch. Note that I'm not sure if all the changes are needed - to be
honest, I just got sick of messing with it, and just saved what I already
had - but I'm pretty sure they won't break it on platforms where it
already works.

libvisual-plugins-0.4.0-64bit.patch (2K) Download Attachment
libvisual-plugins-0.4.0-LIBADD.patch (31K) Download Attachment
libvisual-plugins-0.4.0-analyzer.patch (718 bytes) Download Attachment
libvisual-plugins-0.4.0-gforce.patch (24K) Download Attachment

LiVES - bug in 0.9.8 fixed

2006-12-18T17:43:32Z

Hi,
anybody who downloaded LiVES 0.9.8 is advised to re-download and reinstall.

I just fixed a serious bug with file loading and saving.

URLS:
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.8.tar.bz2
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.8.tar.gz

Regards,
Gabriel.
http://lives.sourceforge.net

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LiVES 0.9.8 released

2006-12-18T08:41:36Z

Hi all,
I have just released LiVES 0.9.8.

URLS:
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.8.tar.bz2
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.8.tar.gz

md5sums:
2bf6877a2e69b4f7d1a47e7b85cd985b LiVES-0.9.8.tar.bz2
5e951c74a497f686a2c8a07f80f77953 LiVES-0.9.8.tar.gz

Changes since 0.9.7
---------------------------
Add audio track and audio preferences to multitrack window.

Fix a layout save/load bug.

Fix trim_frame/add border (so it adds a border again)

Allow recording of audio events.

Fix undo cut after speed-changed audio has been deleted.

Added effect "bumpmap".

Added new "plasma" generator.

Fix crash in "textfun" effect.

Fix "alien_overlay" effect.

Compilation updates for IRIX platform.

Fix compilation on OSX/Darwin.

Updates for video jack.

Fix "snap to overlap" with mouse mode select.

Fixes for encoder/format selection boxes.

Fully updated Czech translation (thanks to Martin Svobodicz).

Much faster startup, set loading and set saving.

Added volume slider when using jack audio player.

Improved menubar transport buttons.

Added Fade audio in/out feature for clips in clip editor.

Fixed a crash when editing effects in multitrack by double clicking.

Allow optional saving/loading of width, height and audio values when
saving/loading a layout.

Allow adjustment of width, height and audio values in multitrack.

Add audio volume and pan effect in multitrack. This can be activated by
right clicking on an audio block.

Show audio volume parameters in multitrack. These are selected from the
View menu.

Faster audio rendering in multitrack.

Options to render only audio or only video in multitrack.

More accurate opening of file selections (remove workarounds for buggy
older versions of mplayer).

Improved realtime generator performance.

Improved real time effect performance.

Only set parameter node values for parameters which are changed.

New Feature: Record external audio to new clip.

New Feature: Record new audio for selection.

Option to grab audio when recording an external window.

Ability to set maximum record time and framerate when recording external
window.

Added a new font (Hiragana) to the "textfun" effect.

Finalise Weed audio spec. version 1.0

Finalise Weed event spec. version 1.0

Code cleanup.

Added optional support for liboil.

Updated Weed effects spec to 1.1.

Finalised LiVES clip header specification 1.0.

Fix compilation errors when compiling without jack.

Show a warning message when compiling without jack.

Update to jack >= 1.0

Show/hide audio track(s) from View menu.

Show/hide context box from View menu.

Add multitrack menu option Edit|Ignore selection limits when inserting
audio.

Fix crash in interpolation of boolean parameters.

Fixes for jack audio pause/unpause.

Fix crash if Preferences are opened with no clip loaded.

Adjust audio block start/end points and velocity.

Many other small fixes and gui improvements.

Gabriel.

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jack inputs

2006-12-05T11:42:49Z

>>
>>
>If you need some help with jack, look at jack.c in LiVES, in particular
>jack_open_device(). I will shortly be adding code to grab audio from jack.
>
>
>Hope this helps,
>Gabriel.
>
>
>
>

Here you go, look at http://lives.cvs.sourceforge.net/lives/lives/src/jack.c

First I call jack_audio_read_init() [note that not all of the fields are
actually used, for example, I don't use "mute" or "out_sample_rate" for
my jack reader]. This is done when the app. starts up.

Then to initiate reading, I call:

jack_open_device_read() followed by jack_read_driver_activate(). This
connects my jack inputs to the pcm_capture ports.

Jack will call the audio_read() callback each time a new audio buffer is
ready. So you would presumably cache this somewhere in libvisual.

Finally, I call jack_close_device() to stop capture.

You can also look at audio.c, functions:
rec_audio_to_clip() and rec_audio_stop() to see how the jack functions
are called.

Also in audio.c, you have the function:

sample_move_float_int() which will convert jack's float type samples to
integer values if you need to.

HTH.

Gabriel.

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jess crash/jack audio

2006-12-04T10:55:04Z

libvisual-devel-request@... wrote:

>==26348== Invalid read of size 8
>==26348== at 0x1EB5C0DD: render_blur (renderer.c:436)
>==26348== by 0x1EB5C1CA: renderer (renderer.c:120)
>==26348== by 0x1EB5AD46: act_jess_render (jess.c:348)
>
>
>Gabriel.
>
>
>

>Gabriel,
>
>A successful professional software developer as yourself knows that in order
>to track an software issue there can not be enough information for the
>developer. So I would like to request you to:
>
>a) Use a sane message topic
>b) Tell me if this is 32 bits or 64 bits.
>c) Tell me the screen depth you are using.
>d) Give me a link to the code that uses Libvisual so I can review.
>e) Tell me the VisVideo screen dimension that was used.
>
>Thanks a lot!
>
>Cheers,
>Dennis
>
>
>
>
>

32 bits, depth==24, screen size 640x480.

code is:

visual_input_run (libvis->input);
visual_video_set_buffer (libvis->video, pixel_data);
visual_actor_run (libvis->actor, libvis->input->audio);

This generally runs OK.

>Hello Gabriel,
>
>Jack is not working at all in 0.4.0. I will be releasing a 0.4.1 within 6
>weeks that most
>likely includes a fix. Regarding the alsa issue, (this is where the crash
>is), I have
>been looking into this but I can not find a cause. Basically the alsa plugin
>crashes after you init/deinit/init it a few times within the same process...
>
>Maybe someone else on the list has more clue about this ???
>
>Cheers,
>Dennis
>
>
>

If you need some help with jack, look at jack.c in LiVES, in particular
jack_open_device(). I will shortly be adding code to grab audio from jack.

Hope this helps,
Gabriel.

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Re: crash switching audio listeners

2006-12-02T01:59:38Z

Hello Gabriel,

Jack is not working at all in 0.4.0. I will be releasing a 0.4.1 within 6 weeks that most
likely includes a fix. Regarding the alsa issue, (this is where the crash is), I have
been looking into this but I can not find a cause. Basically the alsa plugin crashes after you init/deinit/init it a few times within the same process...

Maybe someone else on the list has more clue about this ???

Cheers,
Dennis

On 12/2/06, salsaman <salsaman@...> wrote:

switching listeners from jack->alsa->jack->alsa, caused the following crash:

#0  do_lookup_x (undef_name=0xb5d7ebf4 "snd_config_update_free",
hash=8018533, ref=0xb5d793f0, result=0xbfc9b3d8,
    scope=0x1b, i=0, version=0x89cc428, flags=1, skip=0x0, type_class=1)
at do-lookup.h:45
#1  0xb7f91cf5 in _dl_lookup_symbol_x (undef_name=0xb5d7ebf4
"snd_config_update_free", undef_map=0x89cc1a8,
    ref=0xbfc9b410, symbol_scope=0x89e0120, version=0x89cc428,
type_class=1, flags=1, skip_map=0x0)
    at dl-lookup.c:233
#2  0xb7f95591 in fixup (l=0x89cc1a8, reloc_offset=Variable
"reloc_offset" is not available.
) at dl-runtime.c:98
#3  0xb7f953a0 in _dl_runtime_resolve () at dl-runtime.c:136
#4  0xb5d992e5 in snd_config_update_r () from /usr/lib/libasound.so.2
#5  0xb5d996f6 in snd_config_update () from /usr/lib/libasound.so.2
#6  0xb5e318d4 in ?? () from /usr/lib/libasound.so.2
#7  0xb5e318d8 in snd_config () from /usr/lib/libasound.so.2
#8  0x00000000 in ?? ()

Gabriel.

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Re: another libvisual error

2006-12-02T01:55:55Z

Gabriel,

A successful professional software developer as yourself knows that in order to track an software issue there can not be enough information for the developer. So I would like to request you to:

a) Use a sane message topic
b) Tell me if this is 32 bits or 64 bits.
c) Tell me the screen depth you are using.
d) Give me a link to the code that uses Libvisual so I can review.
e) Tell me the VisVideo screen dimension that was used.

Thanks a lot!

Cheers,
Dennis

On 12/2/06, salsaman <salsaman@...> wrote:

libvisual 0.4.0 (as before):

==26348== Invalid read of size 8
==26348==    at 0x1EB5C0DD: render_blur (renderer.c:436)
==26348==    by 0x1EB5C1CA: renderer (renderer.c:120)
==26348==    by 0x1EB5AD46: act_jess_render ( jess.c:348)

Gabriel.

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another libvisual error

2006-12-01T22:38:48Z

libvisual 0.4.0 (as before):

==26348== Invalid read of size 8
==26348== at 0x1EB5C0DD: render_blur (renderer.c:436)
==26348== by 0x1EB5C1CA: renderer (renderer.c:120)
==26348== by 0x1EB5AD46: act_jess_render (jess.c:348)

Gabriel.

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crash switching audio listeners

2006-12-01T20:20:29Z

switching listeners from jack->alsa->jack->alsa, caused the following crash:

#0 do_lookup_x (undef_name=0xb5d7ebf4 "snd_config_update_free",
hash=8018533, ref=0xb5d793f0, result=0xbfc9b3d8,
scope=0x1b, i=0, version=0x89cc428, flags=1, skip=0x0, type_class=1)
at do-lookup.h:45
#1 0xb7f91cf5 in _dl_lookup_symbol_x (undef_name=0xb5d7ebf4
"snd_config_update_free", undef_map=0x89cc1a8,
ref=0xbfc9b410, symbol_scope=0x89e0120, version=0x89cc428,
type_class=1, flags=1, skip_map=0x0)
at dl-lookup.c:233
#2 0xb7f95591 in fixup (l=0x89cc1a8, reloc_offset=Variable
"reloc_offset" is not available.
) at dl-runtime.c:98
#3 0xb7f953a0 in _dl_runtime_resolve () at dl-runtime.c:136
#4 0xb5d992e5 in snd_config_update_r () from /usr/lib/libasound.so.2
#5 0xb5d996f6 in snd_config_update () from /usr/lib/libasound.so.2
#6 0xb5e318d4 in ?? () from /usr/lib/libasound.so.2
#7 0xb5e318d8 in snd_config () from /usr/lib/libasound.so.2
#8 0x00000000 in ?? ()

Gabriel.

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Re: New website, cms roundup, mk1

2006-11-22T07:54:05Z

Ok,

What about security related issues, are there places where SQL injection or something

similar might potentially happen (aka sensitive spots). I take for granted that your CMS is not

very widely used, so it is also less well tested.

If you honestly without being biased can say that this is a good choice could you implement a prototype ?

Thanks!

Cheers,

Dennis

On 11/21/06, Dan Leinir Turthra Jensen <admin@...> wrote:

Tuesday 21 November 2006 21:02 skrev
libvisual-devel-request@...:
> I looked at the Ark Linux site using Internet Explorer and I noticed that
> it renders quite borked. Is this a problem with Ark Linux their website or
> with Travelsized ?

That is a problem with my layout for the website... The CMS itself is
completely design agnostic :)

> I do like Travelsized but my biggest problem is that you are the only one
> (right?) working on it, and so it is all but sure how it will do in the
> future.

Hmm... i am indeed the only one working on it, but i would not worry about
its future... i have no plans of any sort about stopping development of it ;)
Also, since it doesn't have a database backend, don't worry about the
compatibility problems that sometimes occur there :)

Re: New website, cms roundup, mk1

2006-11-21T12:12:21Z

Tuesday 21 November 2006 21:02 skrev
libvisual-devel-request@...:
> I looked at the Ark Linux site using Internet Explorer and I noticed that
> it renders quite borked. Is this a problem with Ark Linux their website or
> with Travelsized ?

That is a problem with my layout for the website... The CMS itself is
completely design agnostic :)

> I do like Travelsized but my biggest problem is that you are the only one
> (right?) working on it, and so it is all but sure how it will do in the
> future.

Hmm... i am indeed the only one working on it, but i would not worry about
its future... i have no plans of any sort about stopping development of it ;)
Also, since it doesn't have a database backend, don't worry about the
compatibility problems that sometimes occur there :)

--
..Dan // Leinir..
http://www.leinir.dk/

"A Vast Swimmer Keeps No Pets"
- Saemus Z. Harper, Andromeda 1:14

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Re: New website, cms roundup, mk1

2006-11-21T08:34:16Z

I looked at the Ark Linux site using Internet Explorer and I noticed that it renders quite borked.

Is this a problem with Ark Linux their website or with Travelsized ? I do like Travelsized but my biggest

problem is that you are the only one (right?) working on it, and so it is all but sure how it will do in the future.

On 11/21/06, Dan Leinir Turthra Jensen <admin@...> wrote:

Tuesday 21 November 2006 15:56 skrev Dennis Smit

> The CMS sounds and looks nice.

Thanks! :)

> A few other requirements:
> 1. Is there a nice way of adding NEWS items ?

There is indeed - the blogging module takes care of news items as well :)

> 2. Is it possible to easily manage screenshots.

The gallery is designed to do that, both the Ark Linux site and
Travelsized's own website use that :)

--
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http://www.leinir.dk/

"A Vast Swimmer Keeps No Pets"
- Saemus Z. Harper, Andromeda 1:14

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Re: New website, cms roundup, mk1

2006-11-21T07:54:19Z

Tuesday 21 November 2006 15:56 skrev Dennis Smit

> The CMS sounds and looks nice.

Thanks! :)

> A few other requirements:
> 1. Is there a nice way of adding NEWS items ?

There is indeed - the blogging module takes care of news items as well :)

> 2. Is it possible to easily manage screenshots.

The gallery is designed to do that, both the Ark Linux site and
Travelsized's own website use that :)

--
..Dan // Leinir..
http://www.leinir.dk/

"A Vast Swimmer Keeps No Pets"
- Saemus Z. Harper, Andromeda 1:14

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Re: Website Proposal (sort of)

2006-11-21T07:10:33Z

No problem, just wanted to suggest. You're probably very wise going for
an existing solution :)

Andrew

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Re: Website Proposal (sort of)

2006-11-21T06:56:06Z

Heya Andrew,

Good to hear from you!! I personally rather use an existing solution instead of

writing a new CMS. We have had many website framework switches and I'd like

to pin this one down for atleast the upcoming years. Servers aren't the problem

however I am doubtful about writing something from scratch. Please keep participating

on the discussion tho!

Cheers,

Dennis

On 11/21/06, Andrew Godwin <andrewgodwin@...> wrote:

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Hash: SHA1

Hello all. It's been a while since I've shown my face around here, but
nevermind...

Times change, and I'm once again in possession of too much free time.
If travelsized CMS doesn't pan out, and if the server is capable of
running it, I would be quite happy to write a Python-based CMS (PHP is
really a nightmare). Of course, you need shell access on the server, a
recent version of python installed, mod_rewrite and Apache 2, but
given those rather narrow conditions, Python framework-based apps work
great; I have a few running sites at the moment.

Of course, this is probably overkill, and your server has a reasonable
chance of not meeting the requirements, but I'd thought I'd put in the
offer anyways. I seem to have become quite the Python fanatic in the
last few years, and hopefully this email isn't going to hurt anyone.
Don't look at me for PHP-based solutions, though; I've learnt my
lesson there.

Frameworks (of any sort) mean quick yet tailored development, and make
adding features a lot, lot easier. The big project I'm currently
working on has forums, wikis, user accounts and political simulation
all in one big site, and thanks to frameworks I can write a basic wiki
in less than a few hours, and forums in two days (BBCode is what gets
you). If all you want is screenshots, news and some static information
pages that's not very difficult; even WordPress satisfies that with
the Gallery plugin,

Just thought I'd offer. Good luck with libvisual in any case; eyecandy
is always a good thing ;)

Andrew

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