SoC 2011/OpenGL Interface for VLC

This project is part of Google Summer of Code 2011. Student: Casian Andrei Mentor: Ludovic Fauvet

Abstract

A nice looking, intuitive, effect-oriented OpenGL interface for the VLC Media Player. It should combine the utility of the current Qt interface with the graphics of media centers. OpenGL will be used for all rendering operations for the interface, bringing a wide range of possibilities to develop pretty graphics. All the user interface elements will be specialized according to the needs of the VLC interface.

Progress

Task	Progress
Establish a primitive working interface module.	Done
Create a basic OpenGL "engine" for the interface.	Done
Additional planning and design	Done
Work on the layout system.	Done
Develop basic widgets and basic input	Done
Basic play functionality (primitive playlist)	Done
Selector / navigation, media library	Done
More work on the media library + playlist view (current item, tree view)	Done
Ensure scrolling around the playlist without problems	Done
Open media dialogs, use a dialog provider	Untested
Text rendering using a VLC text renderer module	Done
Play video, ensure layout transitions work smoothly	In progress
Implement basic effects for everything	Not started
Improve playlist item, add details	Planned
Add more effects as much as possible	Not started
Nice play button, volume slider, stop, next, prev buttons	Not started
Further improvements on the playlist, display more meta-data	Planned
Lirc input	Not started
Extra buttons, improve media library	Not started
Fullscreen mode and search / filter	Not started
Implement missing features and general improvements	Not started

Planning and Design

The interface has 3 main parts - user input, GUI (widgets in OpenGL), functionality (interaction with VLC).

User -> user input -> GUI <-> VLC

User <- GUI <-> VLC

Classes

Main:

• GLIntf (module code, create main things)
• GLIntfWidget (a specialized QGLWidget for OpenGL and input)
• MainInterface (centralizes the others, issues drawing and updates)

User Input:

• UserInputMonitor (handles input from multiple possible sources)
• AbstractUserInput (base class for an input type)
• QtUserInput (input from Qt events - touch / mouse, keys)
• LircInput (buttons from remote control)

Widgets:

• Widget (base class for every widget)
• Layout (sets positions, sizes of multiple widgets)
• DynamicLayout (layout that can transition smoothly)
• Container (a widget that can contain other widgets and has a layout)
• PlaylistBrowser (the playlist)
• PlaylistItem (an item from the playlist)
• NavigationPanel (choose Media Library, Internet, etc.)
• NavigationItem (item for selecting media sources ^)
• Button (base class for a button)
• Label (draws text)
• PlayButton
• SeekSlider
• VolumeWidget
• VideoWidget ("holds" the video)
• FilterEdit

Functionality:

• PlaylistManager (like MainInputManager from Qt interface)
• InputManager (like InputManager from Qt interface)
• Dialogs (to handle showing dialogs using a dialog provider)

Other:

• AbstractEffect (a generic effect)
• TextDrawer (draws text with OpenGL, has cache)

GUI Sketches

• Normal layout, nothing special. Large playlist items
• Video playing layout
• Fullscreen layout
• Normal layout, small items

Repository

Repo

http://git.videolan.org/?p=vlc/vlc-skelet.git;a=summary

git://git.videolan.org/vlc/vlc-skelet.git

Backup Repo

git://repo.or.cz/vlc/vlc-skelet.git

http://repo.or.cz/r/vlc/vlc-skelet.git

Contact

You can reach me at skeletk13 at gmail or as skelet on IRC. Any suggestions are welcome.