SoC 2008/Enhance PVR capabilities of VLC

This project is part of Google Summer of Code 2008. Student: Dylan Yudaken Mentor: Pierre d'Herbemont

Intro

This is the page I will use to document the progress of my Summer of Code 2008 project. Feel free to send me ideas, comments or any inspiration.

Project Abstract

VLC has fast become one of the most common video players available for 'non-technical' users. The ability to watch streams easily and efficiently is a huge advantage for VLC. The ability to timeshift streams has been added to the latest unstable builds, however it is vastly underfeatured and not nearly ready for release. The features would enhance VLC to a new level which would allow a new set of users to use it.

I propose to extend & improve the PVR capabilities of VLC. The current version is severely lacking in functionality and performance. There is a very basic timeshift capability already. To this I will add the ability to randomly seek through the buffer (fast forward, rewind, etc ). The ability to save buffers and continue recording to the new file will be added. These recordings will be in any chosen format. These features will help anyone who uses VLC to watch TV shows to easily turn their client into a MythTV/Media Centre style client. I will tie the module in with the user interface properly so that the state of the buffer and the current position can be easily seen. I then plan to begin work on a framework that combines all of these features into a simple interface easily accessible with a remote control. The interface will combine VLM and the media library into a single easily accesible place. The interface will have the ability to 'talk' to the server sending commands such as changing tv channel or switching input source.

With this and the completion of VLM and the playlist managing system VLC will have the capabilities to become a fully featured PVR system with the massive advantage of it being run off a streaming server if need be.

Current Status

End of Week 3.5

Latest patches

Not a very good week. Had to work hard for friday exam which I wasnt planning on. little accomplished. but the big work starts now. fantastic.

Timeshift

no work.

Interface

Animations are working & running automatically. The components arent incredible visually (not my strong point) but hopefully will get better. Now that the framework is mostly done I hope to wrap up the fullscreen display quickly and efficiently.

A side thought on this is that it could replace the OSD when using the opengl video output. Could be quite nice.

Current Problems

• Image loading & drawing isnt working
• When the movie is paused the thread priority drops and the animations dont work well anymore.
• Cant draw opengl stuff out the bounds of the movie
• Timeshift bug when we go from last file to first file. (only happens sometimes)

Screenshots

End Week 4

What is everything?

• On the bottom and right are the menu bars. All control will be from these. The picture loading code is broken for now and so the weird colours are displayed.
• The text at the bottom is a text example. this can be rotated and animated in 3d however you want. (it is a 3d representation of the letters)
• The vertical bar at the right is a spinning volume bar. Might not be used in the end.
• Top right are some spinning pause objects.
• When paused the video shrinks into the upper-left side of the screen and the menu fills its place.

Details

The plan is to work on two parts.

Timeshift Module

Initially the timeshift access module will be improved considerably. Bugs ironed out and additional functionality added. This is beign done a bit at a time throughout.

PVR Interface

Then a new interface will be added. My current idea (still to be discussed with more knowledgable developers) is to build onto the QT interface. Firstly a good fullscreen interface (potentially to be worked on with the summer of code project focusing on that) that clearly displays the current buffer state. ie. where we are in the current buffer, buffer size, recording information etc... In addition a new widget will be created that contains the PVR-style menus. These will be nice and big for use on a tv. There will be screens to access music & videos (from the library still to be finished), streams, options, pictures & VLM. There will potentially also be a new sort of hotkeys interface specifically for the PVR, so that you can have specific hotkeys linked to a remote control when watching fullscreen.

Project Timeline

Time Planning

Basically

Pre-May 26 Because of my excellent southern-hemisphere timetable have started working on code a bit. see status for progress.

May 26: Program Start. Also the start of my exams. Will not be working this week.

June 1 -> 13: Still have exams, but only 2 in this long period and its not very busy with them. Will start working properly on the project.

June 14 - July 7: Work Work

July 7: Mid term evaluations

July 8 -> Beginning of August: Work nice and hard.

Beginning of August -> August 11: Finish off. could have tests here as well depending on university. 11 August is googles suggested pencils down date.

August 11 -> August 18: Make code excellent.

August 19: no more coding

Timeline

This will be expanded upon, specifically the PVR Interface section will be much more detailed closer to the time, when a specific plan is developed.

Task Description	Date Finished (or planned Finish)	Status
Planning	26 May	done (so to speak)
PVR On screen display	16 - 23 June	Busy...
Timeshift Module	?	Not Started
PVR Interface	11 August	Not Started