[
http://dev.sourcefabric.org/browse/LS-478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Baelde updated LS-478:
----------------------------
Description:
$ ./src/liquidsoap 'output.dummy(video.add_text("foo",blank()))'
Invalid value at line 1, char 28-42: Library not initialized.
The problem is that SDL is only initialized when streaming starts, just before
sources are woken up, but the text operator initializes its font upon creation
and not upon #wake_up. This in itself is (slightly) incorrect since resources
should only be allocated within #wake_up and #sleep, but it is useful to check
that the font exists.
The simplest solution is that all SDL operators call Sdl_utils.init which inits
with all options if not already done. The current architecture tries to do
better by not initializing components that don't need to. This is nice but I
don't see why it's necessary.
was:
{{{
$ ./src/liquidsoap 'output.dummy(video.add_text("foo",blank()))'
Invalid value at line 1, char 28-42: Library not initialized.
}}}
The problem is that SDL is only initialized when streaming starts, just before
sources are woken up, but the text operator initializes its font upon creation
and not upon #wake_up. This in itself is (slightly) incorrect since resources
should only be allocated within #wake_up and #sleep, but it is useful to check
that the font exists.
The simplest solution is that all SDL operators call Sdl_utils.init which inits
with all options if not already done. The current architecture tries to do
better by not initializing components that don't need to. This is nice but I
don't see why it's necessary.
> Cannot use video.add_text since SDL init changes
> ------------------------------------------------
>
> Key: LS-478
> URL: http://dev.sourcefabric.org/browse/LS-478
> Project: Liquidsoap
> Issue Type: Bug
> Components: Liquidsoap
> Environment: current dev version
> Reporter: David Baelde
> Priority: Major
>
> $ ./src/liquidsoap 'output.dummy(video.add_text("foo",blank()))'
> Invalid value at line 1, char 28-42: Library not initialized.
> The problem is that SDL is only initialized when streaming starts, just
> before sources are woken up, but the text operator initializes its font upon
> creation and not upon #wake_up. This in itself is (slightly) incorrect since
> resources should only be allocated within #wake_up and #sleep, but it is
> useful to check that the font exists.
> The simplest solution is that all SDL operators call Sdl_utils.init which
> inits with all options if not already done. The current architecture tries to
> do better by not initializing components that don't need to. This is nice but
> I don't see why it's necessary.
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