View source for GCodeIn 2011

= Google Code In =

This page is about gathering '''ideas''' for the VideoLAN project for acceptance in the [http://code.google.com/opensource/gci/2011-12/index.html Google Code In 2011-2012] program.

VideoLAN has been part of [http://code.google.com/soc/ Google Summer of Code] in [[SoC_2007|2007]], [[SoC_2008|2008]], [[SoC_2009|2009]] and [[SoC_2010|2010]].

[[x264 GCodeIn Ideas|x264]] is also participating in Videolan's Code-In.

= Ideas for VideoLAN =

== Warning ==
This is a temporary page for listing ideas for Google Code-in tasks. 

The final tasks will be moved to melange, when needed.

== libav ==

=== avconv Video Tutorial ===
'''Category''': Documentation <br>
'''Description''': avconv had been recently introduced and new and old users of ffmpeg might enjoy having some walkthrough to a number of common tasks.  <br>
 <br>
'''Outcome''': Prepare a video with a short tutorial for one of the following tasks: <br>
*Transcode to h264/aac/mov <br>
*Transcode to vp8/vorbis/webm <br>
*Transcode to h264/speex/flv <br>
*Live streaming from a video source (webcam/screen capture) to a remote server (rtmp, rtsp) <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Help document filter usage ===
'''Category''': Documentation <br>
'''Description''': A list of filters is nice, but actual examples would help a lot <br>
'''Outcome''': You'll provide 5 different examples involving filters <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Live-streaming from libav ===
'''Category''': Documentation <br>
'''Description''': Lots of sites let you broadcast yourself, but sometimes getting there can be a challenge- help improve this <br>
'''Outcome''': Produce a guide showing how to do live-streaming to a video site of your choice <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Create a new preset ===
'''Category''': Documentation <br>
'''Description''': libav has a fine set of presets, but they're limited in scope- other codecs could certainly benefit from some nice presets <br>
'''Outcome''': Create a new preset that gets accepted into libav <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Practical examples on capturing from devices ===
'''Category''': Documentation <br>
'''Description''': There's many devices that avconv can capture from, but not all are well documented- some only have a mention or two and no examples <br>
'''Outcome''': At least five new examples on capturing from devices will be created <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Document metadata tags and their usage ===
'''Category''': Documentation <br>
'''Description''': There are huge number of metadata tags spread across many standards, and libav supports many of them. Documentation on them is sparse, and is mostly contained in the source code <br>
'''Outcome''': At least one metadata format will be documented fully with examples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing MPEG2 files ===
'''Category''': Quality Assurance <br>
'''Description''':  <br>
'''Outcome''': Fuzz at least 10 MPEG2 files and file bug reports for crashes w/samples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing H264 files ===
'''Category''': Quality Assurance <br>
'''Description''':  <br>
'''Outcome''': Fuzz at least 10 H264 files and file bugreports for crashes w/samples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing MPEG4 (Divx/Xvid) files  ===
'''Category''': Quality Assurance <br>
'''Description''':  <br>
'''Outcome''': Fuzz at least 10 MPEG4 files and file bug reports on crashes w/samples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing MJPEG files ===
'''Category''': Quality Assurance <br>
'''Description''':  <br>
'''Outcome''': Fuzz at least 10 MJPEG files and file bugreports on crashers w/samples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing other codecs ===
'''Category''': Quality Assurance <br>
'''Description''': Other codecs that aren't as mainstream definitely could use some fuzztesting to shake out problems and possible security threats <br>
'''Outcome''': Fuzz at least 10 files for your chosen codec and file bugreports on crashers w/samples <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Fuzzing existing crashers ===
'''Category''': Quality Assurance <br>
'''Description''': A wide range of projects use libav, and some of them maintain bugtrackers or forums which contain records of crashing files <br>
It would be nice to know if those files still crash libav, and if fuzzing them creates a new crash <br>
'''Outcome''': Test 10 open reports of crashing files from a libav-using project to see if it still crashes on the latest libav, and then fuzz test those files, filing bugreports on any crashes found <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Common problems with no documented solution ===
'''Category''': Research <br>
'''Description''': Anyone who has spent some time on mailing lists or IRC channels starts to see the same questions pop up time and again <br>
The most frequent of these usually get put in an FAQ, or some other easily-accessible place
'''Outcome''': Document an issue that seems to pop up regularly without getting answered and find an answer for it <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Find a new video codec ===
'''Category''': Research <br>
'''Description''': There are hundreds of video codecs in existence, and many of them are known and documented  <br>
For as many as are known, there's undoubtedly still more out there waiting to be found and written about <br>
'''Outcome''': Find a video file that does not play in current libav, and provide information on it, containing at the least: <br>
*Video codec name <br>
*How to identify this type (usually a fourcc, a certain file header or a unusual/unique file extension) <br>
*Samples with descriptions of what they depict and codec features used in them if known <br>
*Links to the original decoder and encoder <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Find a new audio codec ===
'''Category''': Research <br>
'''Description''': There are a large number of audio codecs out there, and just like video codecs, many of them are known and documented <br>
Undoubtedly though, there are still more out there that are not yet known or documented <br>
'''Outcome''': Find a currently unknown audio codec and provide information about it so it can be eventually supported <br>
This information should include the following: <br>
*Audio codec name <br>
*How to identify this type (twoCC, a file header or a distinctive file extension usually) <br>
*Samples, ideally made from lossless source and details on any features used if known <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

== VideoLAN Communication ==

=== Wiki Orphans and Double tracking ===
'''Category''': Documentation <br>
'''Description''': The wiki has way too many [[Special:LonelyPages|orphaned pages]] and [[Special:DoubleRedirects| double redirected pages]], they should be linked by other pages or marked for deletion, and redirects should be fixed<br>
'''Outcome''': A better wiki with less orphaned pages or redirects <br>
'''Difficulty''': easy <br>
'''Tools''': a wiki account<br>
'''Time''': 4hours <br>
'''Mentor''': [[User:Xtophe|xtophe]] <br>

=== Wiki short pages tracking ===
'''Category''': Documentation <br>
'''Description''': The wiki has too many [[Special:ShortPages|short pages]], they should be improved, marked for deletion or merged with other pages <br>
'''Outcome''': A better wiki with less short pages <br>
'''Difficulty''': easy <br>
'''Tools''': a wiki account<br>
'''Time''': 4hours <br>
'''Mentor''': [[User:Xtophe|xtophe]] <br>

=== Update wiki guides ===
'''Category''': Documentation <br>
'''Description''': Not all of the guides on the wiki have been updated for newer versions of VLC<br> 
Update one for the latest released version of VLC<br>
'''Outcome''': A working guide for the latest release of VLC <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== Create a guide on capturing video from capture cards ===
'''Category''': Documentation <br>
'''Description''': A guide to capturing video from video capture cards <br>
One for hardware-encoder cards, and one for non-hardware encoder cards would be great <br>
'''Outcome''': A guide with screenshots for one type of video capture card <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== VideoLAN flyer/poster ===
'''Category''': Outreach <br>
'''Description''': The VideoLAN project needs a flyer for promotional matters <br>
'''Outcome''': A cool A5-sized flyer presenting VideoLAN <br>
'''Difficulty''': medium <br>
'''Tools''': Image-Editing software<br>
'''Time''': 3days <br>
'''Mentor''': [[User:Jpsaman|Jean-Paul Saman]] <br>

=== VideoLAN Forum improvements ===
'''Category''': Research and Outreach <br>
'''Description''': The VideoLAN [http://forum.videolan.org forums] have many shortcomings, especially regarding spam and "Solved topics"<br>
We need research on solutions and advise us how we can improve the forums <br>
'''Outcome''': small report on ideas, advice and solution<br>
'''Difficulty''': medium <br>
'''Tools''': Browser and Text editor<br>
'''Time''': 3days <br>
'''Mentor''': VLC_help <br>

=== VideoLAN PHP webpage for file uploading for bugreports ===
'''Category''': Code <br>
'''Description''': The VideoLAN project needs a small WebPage in PHP to be able to upload the files for the bugreports<br>
As some of those files are big, some progression bar should be done in Javascript too <br>
'''Outcome''': a working deployed PHP script<br>
'''Difficulty''': hard <br>
'''Tools''': PHP development environment<br>
'''Time''': 5days <br>
'''Mentor''': etix <br>


== VLC ==
=== Create VLC videos for training ===
'''Category''': Training <br>
'''Description''': Creation of youtube Videos of screencasts of VLC usage<br>
This task can be divided in chunks of 5 videos <br>
'''Outcome''': VLC Youtube channels <br>
'''Difficulty''': easy <br>
'''Tools''': VLC, screencast recorders<br>
'''Time''': 2 days <br>
'''Mentor''': [[User:linkfanel|linkfanel]] <br>

=== VLC documentation illustration ===
'''Category''': Documentation <br>
'''Description''': Creation of VLC screenshots and small diagrams to improve the VLC documentation on the wiki<br>
'''Outcome''': VLC illustrations on the documentation <br>
'''Difficulty''': easy <br>
'''Tools''': VLC, Image Editing software<br>
'''Time''': 5 days <br>
'''Mentor''': [[User:ivoire|Rémi Duraffort]] <br>

=== VLC users survey creation ===
'''Category''': Outreach <br>
'''Description''': Creation of a survey for VLC users, about their usage of VLC, that we will put on the website <br>
'''Outcome''': Survey ready to be sent to the VLC users <br>
'''Difficulty''': medium <br>
'''Tools''': text editor and web browser<br>
'''Time''': 5 days <br>
'''Mentor''': [[User:J-b|jb]] <br>

=== VLC fullscreen controller redesign ===
'''Category''': User Interface <br>
'''Description''': Find ideas to improve and redesign the fullscreen controller of the VLC version on Windows/Linux <br>
'''Outcome''': Sketchs and ideas for the fullscreen controller <br>
'''Difficulty''': medium <br>
'''Tools''': web browser and image editor<br>
'''Time''': 5 days <br>
'''Mentor''': [[User:J-b|jb]] <br>

=== Help out your language's translation ===
'''Category''': Translation <br>
'''Description''': Help translate more of VLC into your language <br>
'''Outcome''': Add at least 5% more translations <br>
'''Difficulty''':  <br>
'''Tools''':  <br>
'''Time''':  <br>
'''Mentor''':  <br>

=== VLC volume controller redesign ===
'''Category''': User Interface <br>
'''Description''': Find ideas to improve and redesign the volume controller of the VLC version on Windows/Linux <br>
'''Outcome''': Sketchs and ideas for the volume controller<br>
'''Difficulty''': hard <br>
'''Tools''': web browser and image editor<br>
'''Time''': 3 weeks <br>
'''Mentor''': [[User:J-b|jb]] <br>

=== VLC Lyrics extension ===
'''Category''': Code <br>
'''Description''': Creation of one extension in lua that can be able to fetch and display Lyrics from one website API<br>
'''Outcome''': Working Lua Lyrics extension script <br>
'''Difficulty''': hard <br>
'''Tools''': text editor and VLC <br>
'''Time''': 10 days <br>
'''Mentor''': [[User:Jpeg|jpeg]] <br>

=== VLC Songkick extension ===
'''Category''': Code <br>
'''Description''': Creating one extension in lua that can be able to fetch and display Lyrics from Songkick API<br>
'''Outcome''': Working Lua Songkick extension script <br>
'''Difficulty''': hard <br>
'''Tools''': text editor and VLC <br>
'''Time''': 10 days <br>
'''Mentor''': [[User:Jpeg|jpeg]] <br>

=== VLC webplugin testpages ===
'''Category''': Code <br>
'''Description''': This task is about updating the Html/CSS/JS scripting test pages for the [[Documentation:WebPlugin|Webplugins]]. <br>
'''Outcome''': Usable pages for testing the VLC webplugins <br>
'''Difficulty''': hard <br>
'''Tools''': text editor and a browser<br>
'''Time''': 10 days <br>
'''Mentor''': [[User:Jpsaman|Jean-Paul Saman]] <br>

=== VLC warnings cleanup ===
'''Category''': Code <br>
'''Description''': This has for objective to delete a lot of warnings in C and C++ code when doing VLC compilation for Linux and Windows.<br>
'''Outcome''': Less warnings in C and C++ code <br>
'''Difficulty''': hard <br>
'''Tools''': text editor and compilation toolchain<br>
'''Time''': 10 days <br>
'''Mentor''': [[User:ivoire|Rémi Duraffort]]  <br>

=== libVLC Qt example media player ===
'''Category''': Code <br>
'''Description''': Creating a small example of how to create a media player based on libVLC and Qt on Windows/Linux.<br>
'''Outcome''': a cool media player to demonstrate the libVLC API in Qt <br>
'''Difficulty''': hard <br>
'''Tools''': complete compilation toolchain<br>
'''Time''': 15 days <br>
'''Mentor''': pdherbemont <br>

=== libVLC Gtk example media player ===
'''Category''': Code <br>
'''Description''': Creating a small example of how to create a media player based on libVLC and Gtk on Windows/Linux.<br>
'''Outcome''': a cool media player to demonstrate the libVLC API in Gtk <br>
'''Difficulty''': hard <br>
'''Tools''': complete compilation toolchain<br>
'''Time''': 15 days <br>
'''Mentor''': pdherbemont <br>

=== libVLC wxWidgets example media player ===
'''Category''': Code <br>
'''Description''': Creating a small example of how to create a media player based on libVLC and wxWidgets on Windows/Linux.<br>
'''Outcome''': a cool media player to demonstrate the libVLC API in wxWidgets <br>
'''Difficulty''': hard <br>
'''Tools''': complete compilation toolchain<br>
'''Time''': 15 days <br>
'''Mentor''': pdherbemont <br>

== VLMC ==

=== Create VLMC videos for training ===
'''Category''': Training <br>
'''Description''': Creation of youtube Videos of screencasts of VLMC usage<br>
This task can be divided in chunks of 3 videos <br>
'''Outcome''': VLMC Youtube channels <br>
'''Difficulty''': easy <br>
'''Tools''': VLMC, screencasting tools<br>
'''Time''': 3 days <br>
'''Mentor''': [[User:etix|etix]] <br>

=== VLMC UI testing ===
'''Category''': Quality Assurance <br>
'''Description''': Testing VLMC Interface and testing all dialogs and options to find bugs<br>
'''Outcome''': Bugreports <br>
'''Difficulty''': easy<br>
'''Tools''': VLMC <br>
'''Time''': 3 days<br>
'''Mentor''': Hugo <br>

=== VLMC files testing ===
'''Category''': Quality Assurance<br>
'''Description''': Testing VLMC for Windows or Linux with many file formats <br>
'''Outcome''': Bug reports on the forum that don't work <br>
'''Difficulty''': medium <br>
'''Tools''': VLMC, mediainfo, Windows/Linux <br>
'''Time''': 7 days <br>
'''Mentor''': Hugo <br>

== Contact ==
For ANY question, contact [[User:J-b|jb]] or [[User:xtophe|xtophe]]

IRC channel: #videolan or irc://irc.freenode.net