Lumiera
The new emerging NLE for GNU/Linux

Not all meetings gets summarized on this page. For example, there are no meeting summaries at all available for 2010. This only means that there were not enough things that needed deciding/documenting during these meetings to warrant someone spending time on the task of writing a summary.

Anyone interested in Lumiera development is also encouraged to read mailing list archives and other documentation.

8 May / 12 June 2024

Discussion regarding the approach taken towards the next core topic, which is how to structure the render nodes in the low-level model and how to perform an invocation, leading to the calculation of media data. It is considered very important for Lumiera to remain library / framework agnostic, even while we use some frameworks and libraries for prototyping. The structure drafted over the course of the last years and about to be integrated now must be flexible enough to support adapt to the requirements of various libraries, without attempting to build a super structure to “rule them all”.

13 Mar / 10 Apr 2024

Status update and informal exchange regarding current development activities

  • after factoring out further external influences, a breaking point for processing complex dependent schedules could be established, which closely matches theoretical expectations

  • a further measurement series (linear regression) was necessary to establish performance characteristics of the scheduler under constant high load

  • as expected, a serious weakness pertaining contention could be confirmed
    (yet contention is not expected to be a problem in practice)

  • as mitigation, concurrency is scaled down on very short (100µs) jobs

  • overall we are confident that the new scheduler is capable to handle the expected load pattern and does not suffer from major (unknown) weaknesses.

Moreover, the problems related to integration and use of external frameworks for video display were discussed further.

14 Feb 2024

Topics

  • Discussion about GTK+, Python bindings vs. C++ bindings vs. the C-API, challenges due to the dynamic nature of layout and inconsistent CSS settings, and further difficulties integrating video display.

  • Update regarding the ongoing effort to establish performance limits of the Scheduler and discussion about methods of measurement.

10 Jan 2024

Topics

  • Scheduler performance testing

  • using GStreamer for Video output to the GUI

Summary

13 Dec 2023

Topics

  • Extended technical discussion about Scheduler load testing and how to find out about inherent limitations of the approach taken

8 Nov 2023

Topics

  • Wikipedia

  • Scheduler integration and testing

  • Video output to the GUI

Summary

11 Oct 2023

Topics

  • Scheduler and worker pool design

  • Rework of multithreading support

  • Compiler and platform upgrades

Summary

13 Sep 2023

Topics

  • »Focus Topics«

  • Progress on the »Playback Vertical Slice«

  • Website Index and Glossary generator

  • Library solutions for video display in the GUI

Summary

12 Sep 2013

Topics

  • Doxygen

  • FrOSCon aftermath

  • Scheduler interface and requirements definition

Summary

Most of our monthly developer meetings are informal discussions currently. At times, there is only one developer working at the code, and thus there is not much need for coordination. Sometimes, in-depth technical discussions and decisions take place, and we’ll publish at least an IRC transcript in those cases; typically we also create a RfC to summarise the decisions.

11 Oct 2012

Topics

  • automatisation of packaging

  • dealing with GTK-3 and the Gnome Docking Library

  • builddrone improvements

  • creating support tools for documentation writing, especially for cross-links and glossary

Summary

12 Sep 2012

Topics

  • RFCs

  • Upgrade to Wheezy/GTK-3

  • Master and the Documentation repository

  • Builddrone v2

  • Trac problems

  • Git Commit Message Format

Summary

During 2012 again the regular monthly meethings were mostly informal detail discussions plus some organisational planning. Not much to account for.

11 Jan 2012

Topics

  • Website status. Clean-up of TiddlyWikis

  • cross-links and link checking for the website

  • promotion: Libre Graphics Magazine

  • rendering to file: library solutions

Summary

14 Dec 2011

Topics

  • discussion about build systems.

  • review of the SCons build scripts

  • some details about the scheduler and invoking render jobs

During Summer 2011 we kept up our monthly IRC meetings — rather casual exchange for the time being.

  • 9 Nov 2011

  • 12 Oct 2011

  • 14 Sep 2011

  • 10 Aug 2011

  • 13 Jul 2011

  • 8 Jun 2011

11 May 2011

Topics

  • detailed technical discussion about the Render Engine Interface

Summary

13 Apr 2011

Topics

  • New Website Page Layout

    liquid layout — scrolling — colours

  • Website licensing and legal questions

  • Trac spam

  • Go through Ideas and Drafts in design process

    accepted: ForwardIterator, HighLevelModel, Placement concept, Session structure

Summary

9 Mar 2011

Topics

  • The New Website

  • IRC Logs

  • VoIP discussions over Mumble?

  • Version numbering

Summary

informal meetings, no summaries

In 2010, the monthly meetings where rather informal gatherings, without any relevant decisions beyond the organisation of conference activities. During that time, usually the two remaining Lumiera core developers where alternatively either prevented by real-life obligations, or otherwise just in “deep coding mode”

9 Sep 2009

Topics

  • FrOSCon

  • Funding

  • Website

  • Ticket Query Clean-up

  • Coding

Summary

14 Jan 2009

Topics

  • organisational (protocol, agenda, leftovers?)

  • Logo Contest results, elaborating the winner concept

  • Forming a Workflow group

  • Set up a Trac for issue tracking

  • Getting the 'non-coders' community to help

  • Possible GUI-Integration: Display a frame?

Summary

10 Dec 2008

Topics

  • organisational (protocol, agenda, leftovers?)

  • Logo Contest progress, discussion about how to do the pre selection

  • rename "EDL" into "Sequence"

  • Project, Timeline(s), Sequence(s) and Output

  • GUI/Proc Interface and collaboration

  • Threading questions regarding gtk-main and main()

Summary

12 Nov 2008

Topics

  • organisational (protocol, agenda, leftovers?)

  • Logo Contest progress

  • uWiki Progress

  • Builddrone, any helpers?

  • Platform and lib dependency status

  • Discussion about foreseeable problems with Gui Plugins

  • Include dir and namespaces

  • build system, plugin tree

Summary

10 Oct 2008

Topics

  • organisational (protocol, agenda…)

  • Lumiera Logo

  • Design Process: Go through Ideas and Drafts

    • Mistakes to avoid

    • Tag clouds

    • Lumiera Architecture

    • EDLs as meta-clips

    • Builder

    • Lua scripting language

    • Time handling

    • Interface naming

  • Config System (1st version landed)

  • Use of Namespaces

  • Interface Definition Language

Summary

4 Sep 2008

Topics

  • boilerplate (protocol, agenda, …)

  • Plugin Descriptors

  • Mailinglist, setup, administration

  • Lumiera-work Mailinglist (for TODOs)

  • About Website transition plan

Summary

(missing)

7 Aug 2008

Topics

  • Go through Ideas and Drafts in design process

  • Config System (in the works)

  • Scripting language plans

  • GUI brainstorming page

Summary

(missing)

6 Jul 2008

Topics

  • boilerplate (protocol, what’s left from last meeting)

  • Introduction of Lumiera

  • handling of config errors.

  • scripting language.

  • editing on small devices (eeePC)

  • uWiki.

  • musical timeline in bars and beats

Summary

6 Jun 2008

Topics

  • boilerplate (protocol, what’s left from last meeting)

  • Go through Ideas and Drafts in design process

    • processing node interface

    • Placement concept

Summary

8 May 2008

Topics

  • boilerplate (protocol, what’s left from last meeting)

  • Go through Ideas and Drafts in design process

  • Website infrastructure

Summary

3 Apr 2008

Topics

  • boilerplate (protocol, what’s left from last meeting)

  • Go through Ideas and Drafts in design process

  • Call for volunteers (which tasks are to do, how can we interest people) for wiki/todo.html

  • Project announcements/registration (freshmeat, gnu, etc…) any takers?

  • Informal talk about the GUI (We have some people who want to contribute now, what’s going on, how can they start)

  • froscon application (linux multimedia booth?)

  • timecode-metadata discussion: convert to arithmetic time type early or late?

Summary

6 Mar 2008

Topics

  • boilerplate (protocol, whats left from last meeting, next meeting)

  • Go through Ideas and Drafts in design process

  • "Call for design" for some features relevant for the whole Application:

    • parameters and automation

    • render node interface

    • handling of compound sessions

    • session storage interface in general

  • Project name

  • Project Server, setup, organization, administration

  • GPL3 pros cons, license rationale

Summary

1 Feb 2008

Topics

  • Who will write the protocol below

  • Discuss the open points in Lumiera/DesignProcess do we need this formalism?

  • Who works on what, what are the short term goals, what tasks are open

  • State of the new-name search for the was-intended-as-cinelerra-3 project (no name discussion, just how we will progress!)

  • Introduce the development model

  • How to handle the regular meetings in future (day, time, where to put summaries)

Summary