# FAQ

Introduction :
The software Lignes de temps is divided in two parts: system and interface.
The first one is not visible for users; it allows to record the work done (notes, sequences, rough-cut) in a file. It also permits to launch programs necessary to import an audio or video file. These programs encode video in order that it can be visible in the interface and that it can produce the shot by shot and the sound wave.
The interface is composed by all the elements visible and controlled by users. It is composed by the top left menu (File, Display) and by three windows: Informations, the media player, and the one who displays the lignes de temps.
The two parts of the program are connected but the communication can sometimes be interrupted, without any notification. In this case, the work can not unfortunately be recorded. The Institute for research and innovation works on those different problems. For any information, feedback or problem : contact@iri.centrepompidou.fr
A work on Lignes de temps is saved in a project file (ldt extension) which holds references towards the media used and the personal data (notes, sequences, rough-cut). The non-personal data on one media (shot by shot and sound wave for example) are recorded in an iri extension file.

- I use a Mac, how can I know which is my configuration ?
  To know if your computer is "Intel" or "Power PC", you have to go in the Apple menu up left on the screen. In the menu, click on "About this Mac". The line "Processor" indicates the type of configuration "Intel" or "Power PC".
  After many tests, it seems that Lignes de temps just settles on the computers with the operating system 10.5 called "leopard", the 10.4 one called "tiger", the Intel processor, or with the Power PC processor.
- I do not succeed in displaying movies :
  To display those lignes de temps, you have to click on the movie title in the lignes de temps window then on the tab "Cuttings". In this tab, appears the list of the available sequences; you just have to click on one of them to display the corresponding ligne de temps.
- I do not succeed in importing an audio or video file :
  You have to make sure that the file extension can match. Lignes de temps takes into account avi, mpg, mov, flv extension for video and mp3 for audio. Then, even if this one is accepted, the encoding can not match with the program (ffmpeg) which transforms this file in a video readable in Lignes de temps, that is to say in the flv format. Even if the file extension is correct, some characters block the import. Thus, you should prefer naming your file without the following characters : accented characters, space, ç, #, &, %, !, *, (), [], |, {}, :, ;, @.
- I do not succeed in saving my work :
  As it is explained in the introduction, this problem can come from a communication failure between the interface and the program part which records the work in a file. To record the works, we can go through the up left menu (Fichier -- Enregistrer) or through the hot key Ctrl+S on PCs and Apple+S on Macs. In general, when a work has been modified since the last recording, a star appears close the movie title in order to warn about a required recording.

Release notes about Lignes de temps 0.10 :

- MULTILINGUAL INTERFACE with English and French available by default and possibility to add some languages by yourself (the steps are explained in the user guide thanks to the GETTEXT tool)
- Interface and ergonomy completely rebuilt, with for exemple buttons with icons, new tabs more visible, tool tips, confirmation messages before deleting.
- Views : rename and move by drag and drop.
- Tags : the complete project's tags list can be displayed from the top left menu or the shortcut Shift + T.
- Note taking : better management of scroll position, timecode indicated on seperator roll over.
- Bout à bout (edit) : an edit can now be deleted.
- Bug trac added.
- Complete user guide in french and english.
- License added in the "About".

Release notes about Lignes de temps 0.9.4 :

- New note-taking functionnality, enabling to write notes on the fly, then to transform them into a cutting.
- Views : the display states backup includes now the zoom level, the horizontal scroll position and if a "bout à bout" is playing.
- Improvement of tags addition : possibility to display a window with all the timeline's tags and to add one of them by simple click.
- Possibility to display all the project's tags in a large window thanks to the shortcut Shift + F.
- Possibility to highlight the segments by clicking one of the timeline's tags. 5 colors are available (one per tag), then requested segments are displayed in white.
- Possibility to duplicate a timeline from highlighted segments only.
- Possibility to create a bout à bout from a complete timeline or highlighted segments.
- Addition of error messages when the software crashes. They limit the risk of work loss.

Release notes about Lignes de temps 0.9.2 :

- Possibility of duplicating any line (duplication button in the Informations window).
- Presence of the tag field for segments.
- Possibility of displaying a sequences summary, that is to say the sequences list as a clickable text.
- Debug of identified bugs in the previous version.
- Interfaces modifications : the "Informations" window enlarged in height and width, and the read-out window enlarged in width.