Plasma/Plasma Media Center: Difference between revisions

Latest revision as of 04:40, 29 July 2016

This page describes the goals for Plasma Media Center (PMC), explains the design choices being made and details the outstanding tasks remaining.

Goal

To have a media center experience that makes it very easy for people to enjoy their multimedia on a device.

Release Info

Plasma Media Center 1.0.0 release

Plasma Media Center first stable release has been made recently on 20th March 2013.

KDE Dot article link : http://dot.kde.org/2013/03/20/plasma-media-center-release-one

Release and Feature Plan

Form Factors

The following devices (or rather, form factor) are targeted-

Desktop computer
Laptop, netbook - similar convertible devices (touch support is good to have)
Big TV screen connected to a computing device (such as desktop computer, raspberry pi etc)

Use Cases

Viewing Media On The Go With a Laptop

Joe is on a train / airplane travelling between two cities. The trip is long enough to watch the latest episode of his favourite T.V. show which he downloaded the night before from his PVR at home. Joe pops open his laptop, clicks on the Desktop Toolbox and selects "Media Center". PMC loads and he selects "Video", which presents a list of videos on his internal hard drive.

Viewing Media At Home, Laptop -> T.V.

Jane is at home and wants to show her dinner guests pictures from the recent weekend trip she went on. Jane plugs her laptop into the living room television, opens the application launcher (Kickoff, Lancelot) and selects "Media Center". PMC starts up and she selects "Photos" which shows various sets of photo albums. After going through the "Weekend Ski Trip" photos, she goes back and selects Videos -> Youtube and loads a Youtube playlist of top 40 music videos to play in the background while they visit.

A PVR Style Experience

Jaqueline sits down on the couch with her husband Jack and they turn on the television and their Plasma Media Center set top box. They grab the remote control and check the videos that they had recorded / downloaded but haven't watched yet. They select an episode of House and another of Fawlty Towers and press "Play".

Media Center for Plasma Active

PMC now works well with Plama Active. Small video showing PMC running on ExoPC at http://www.youtube.com/watch?v=B8yV2NKiADM .

Design

Architecture

On a very high level, PMC is composed of QML components for different parts of the MediaCenter.

Media Elements

Media Welcome

It is a QML componnet which hosts the welcome screen which is presented to the user when PMC starts up.

Media Browser

It is a QML component which allows user to browse through the media from a backend and to select the desired media to play or view.

Media Player

It is a QML component that uses Phonon QML to play Audio/Video and show Images.

Media Controller

It is QML component that allows user to control currently playing media status like play/pause, seek, volume.

RuntimeData

It is a QML component which handles various media information that is needed when PMC is running.

Playlist

It is a QML component which contains list of media (Music and Videos) files added by user. User can add or remove media anytime from it.

ImageViewer

It is a QML component which is responsible to display picture in PMC. It contains pictureStrip component too, which display all available pictures of a directory in the form of strip and provides flexibility to view next, previous and any random selected picture from strip.

Browsing Backends

Another very important component of PMC, browsing backends support PMC to have different sources for media to be used. Backends are plguins so one can, for example, write a plugin to show all images from a image sharing website

Local files

This backend collection allows the user to browse her local filesystem for media. It exposes three backends-

- Local pictures
- Local music
- Local videos

Metadata

This backend collection uses Plasma Active's metadata model to fetch media from Nepomuk. This should allow us to create groupings based on media tags (such as artist, album etc). Similar to local, this contains three backends-

- Metadata pictures
- Metadata music
- Metadata videos

Online Services

This backend collection fetches media from Internet. Currently available backends are-

- Flickr : This backend fetches images related to the given search string from flickr.
- Picasa : This backend needs user to enter his/her Google login credential to browse through Albums and Pictures
- Youtube : This backend allows user to view videos from youtube. User can search using searcbox and can play video of his own choice in PMC

Libs

It contains core MediaCenter classes to help in functionality.

Shells

This has the actual PMC shell which loads all the components and specifies the positioning of different components within shell. It also provides interconnection between various components.

Mockups

Here are three early Mockups by Nuno Pinheiro (with permission). The top/bottom panel idea has been taken from here (higher resolutions of these on svn)

These are from the very early ideas, for current screenshots, see the Status Reports section at the bottom of this page

Navigation within PMC

Keyboard
Mouse
Touch
Remote control

TODO

Accessibility

Make sure that the following input methods work-

Keyboard ( works almost fine now)
Touch Gestures (pinch, swipe etc)
TV Remote (wiimote etc)

Visualizations for music

Rss Podcast Integration

Getting started

If you are new to Plasma Media Center and want to start doing development in it, then take a look at http://community.kde.org/Plasma/Plasma_Media_Center/getting_started_with_PMC

Current contributors

Akshay Ratan - akshay_r on freenode

"'Bhushan Shah'" - bshah on freenode

Marco Martin - notmart on freenode

Shantanu Tushar - Shaan7 on freenode

Sinny Kumari - ksinny on freenode

Sujith H - sujith_h on freenode

Past contributors

Christophe Olinger - binarylooks on freenode, olingerc on gitorious.org

Sebastian - sebas on freenode

Alessandro - alediaferia on freenode

Christopher Blauvelt - cblauvelt on freenode

Lukas Appelhans - boom1992 on freenode

Onur-Hayri Bakici

Fabian Riethmayer - fabian on freenode

... add your name if you have contributed and its missing

Plasma Media Center IRC Channel on Freenode

#plasma on irc.freenode.net

Browsing and obtaining the source code

You can browse the source on https://quickgit.kde.org/?p=plasma-mediacenter.git, or, if you wish to download the source, simply clone git://anongit.kde.org/plasma-mediacenter.git using git.

Meetings / BoFs

2013 Akademy 2013 Akademy2013
2012 BoF at Akademy 2012 Akademy2012
2012 December IRC meeting DecemberMeeting

Status Reports

2012 [1] [2] [3] [4] [5] [6]

2011 [7] [8] [9] [10]

2010 [11] [12] [13]

2009 [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24]

Find the older design and discussions here History

@@ Line 1: / Line 1: @@
 This page describes the goals for Plasma Media Center (PMC), explains the design choices being made and details the outstanding tasks remaining.
+== Goal ==
+To have a media center experience that makes it very easy for people to enjoy their multimedia on a device.
+== Release Info ==
+=== Plasma Media Center 1.0.0 release ===
+Plasma Media Center first stable release has been made recently on 20th March 2013.
+* KDE Dot article link : http://dot.kde.org/2013/03/20/plasma-media-center-release-one
+===Release and Feature Plan===
+=====Plasma Media Center 1.4=====
+https://community.kde.org/Plasma/Plasma_Media_Center/Release_1.4
+=====Plasma Media Center 1.3=====
+http://community.kde.org/Plasma/Plasma_Media_Center/Release_1.3
+=====Plasma Media Center 1.2=====
+http://community.kde.org/Plasma/Plasma_Media_Center/Release_1.2
+=====Plasma Media Center 1.1=====
+http://community.kde.org/Plasma/Plasma_Media_Center/Release_1.1
+== Form Factors ==
+The following devices (or rather, form factor) are targeted-
+* Desktop computer
+* Laptop, netbook - similar convertible devices (touch support is good to have)
+* Big TV screen connected to a computing device (such as desktop computer, raspberry pi etc)
 == Use Cases  ==
@@ Line 17: / Line 43: @@
 === Media Center for Plasma Active  ===
-Efforts are on to make PMC capable of playing media files on Plasma Active.
+PMC now works well with Plama Active. Small video showing PMC running on ExoPC at http://www.youtube.com/watch?v=B8yV2NKiADM .
-== Design Decisions  ==
+== Design  ==
 === Architecture  ===
+On a very high level, PMC is composed of QML components for different parts of the MediaCenter.
+==== Media Elements ====
+* Media Welcome
+It is a QML componnet which hosts the welcome screen which is presented to the user when PMC starts up.
+* Media Browser
+It is a QML component which allows user to browse through the media from a backend and to select the desired media to play or view.
+* Media Player
+It is a QML component that uses Phonon QML to play Audio/Video and show Images.
+* Media Controller
+It is QML component that allows user to control currently playing media status like play/pause, seek, volume.
+*RuntimeData
+It is a QML component which handles various media information that is needed when PMC is running.
+*Playlist
+It is a QML component which contains list of media (Music and Videos) files added by user. User can add or remove media anytime from it.
+*ImageViewer
+It is a QML component which is responsible to display picture in PMC. It contains pictureStrip component too, which  display all available pictures of a directory in the form of strip and provides flexibility to view next, previous and any random selected picture from strip.
+==== Browsing Backends ====
+Another very important component of PMC, browsing backends support PMC to have different sources for media to be used. Backends are plguins so one can, for example, write a plugin to show all images from a image sharing website
+* Local files
+This backend collection allows the user to browse her local filesystem for media. It exposes three backends-
+** Local pictures
+** Local music
+** Local videos
+* Metadata
+This backend collection uses Plasma Active's metadata model to fetch media from Nepomuk. This should allow us to create groupings based on media tags (such as artist, album etc). Similar to local, this contains three backends-
+** Metadata pictures
+** Metadata music
+** Metadata videos
+* Online Services
+This backend collection fetches media from Internet. Currently available backends are-
+** Flickr : This backend fetches images related to the given search string from flickr.
+** Picasa : This backend needs user to enter his/her Google login credential to browse through Albums and Pictures
+** Youtube : This backend allows user to view videos from youtube. User can search using searcbox and can play video of his own choice in PMC
+==== Libs ====
+It contains core MediaCenter classes to help in functionality.
+==== Shells ====
+This has the actual PMC shell which loads all the components and specifies the positioning of different components within shell. It also provides interconnection between various components.
 === Mockups  ===
@@ Line 31: / Line 115: @@
 [[Image:Nuno pics.JPG|301x188px]]
 [[Image:Nuno playlist.JPG|303x189px]]
+'''These are from the very early ideas, for current screenshots, see the Status Reports section at the bottom of this page'''
 === Navigation within PMC  ===
-*Wiimote (thanks Sebastian for the initial work on this)
 *Keyboard
 *Mouse
@@ Line 42: / Line 127: @@
 == TODO  ==
-=== Support for playlist ===
-Right now users can select a media and play it, however a playlist concept is missing
 === Accessibility ===
 Make sure that the following input methods work-
-*Keyboard
+*Keyboard ( works almost fine now)
-*Mouse
 *Touch Gestures (pinch, swipe etc)
 *TV Remote (wiimote etc)
-=== Port dataengines (youtube, flickr etc) to new plugins architecture ===
+=== Visualizations for music ===
-'''hayri?'''
-=== Support for grouping by tag, artists, album etc in Music Plugin ===
+=== [[Plasma/Plasma Media Center/Podcast | Rss Podcast Integration]] ===
-'''hayri?'''
-=== Adding DVD/CD play support ===
+== Getting started ==
+If you are new to Plasma Media Center and want to start doing development in it, then take a look at http://community.kde.org/Plasma/Plasma_Media_Center/getting_started_with_PMC
-=== In general add support for removable devices ===
+== Current contributors ==
-=== Documentation ===
-=== Visualizations for music ===
+'''Akshay Ratan''' - akshay_r on freenode
-== Current contributors ==
+"'Bhushan Shah'" - bshah on freenode
 '''Marco Martin''' - notmart on freenode
@@ Line 76: / Line 153: @@
 '''Sinny Kumari''' - ksinny on freenode
+'''Sujith H''' - sujith_h on freenode
 == Past contributors ==
@@ Line 87: / Line 165: @@
 '''Christopher Blauvelt''' - cblauvelt on freenode
-'''Lukas Appelhans'''
+'''Lukas Appelhans''' - boom1992 on freenode
 '''Onur-Hayri Bakici'''
+'''Fabian Riethmayer''' - fabian on freenode
 ... add your name if you have contributed and its missing
@@ Line 95: / Line 175: @@
 == Plasma Media Center IRC&nbsp;Channel on Freenode ==
-* plasma-mediacenter on irc.freenode.net<br>
+* #plasma on irc.freenode.net<br>
-== Repository  ==
+== Browsing and obtaining the source code  ==
-Code is browsable at [http://websvn.kde.org/trunk/playground/base/plasma/MediaCenterComponents PMC @ kde websvn]
+You can browse the source on https://quickgit.kde.org/?p=plasma-mediacenter.git, or, if you wish to download the source, simply clone git://anongit.kde.org/plasma-mediacenter.git using git.
-=== Status Reports ===
+==Meetings / BoFs==
+* '''2013''' Akademy 2013 [[/Akademy2013/]]
+* '''2012''' BoF at Akademy 2012 [[/Akademy2012/]]
+* '''2012''' December IRC meeting [[/DecemberMeeting/]]
+== Status Reports ==
+'''2012''' [http://sinny.in/node/17] [http://sinny.in/node/18] [http://sinny.in/node/19] [http://www.sinny.in/node/23] [http://sinny.in/node/25] [http://sinny.in/node/27]
+'''2011''' [http://sinny.in/node/12] [http://sinny.in/node/13] [http://sinny.in/node/14] [http://sinny.in/node/15]
 '''2010''' [http://alediaferia.blogspot.com/2010/03/call-for-devs-part-i.html] [http://alediaferia.blogspot.com/2010/04/welcome-to-my-gsoc-student-personal.html] [http://blog.binarylooks.com/2010/05/plasma-media-center-status-report-and-introduction/]
 '''2009''' [http://alediaferia.wordpress.com/2009/04/22/smells-like-summer-of-code/] [http://alediaferia.wordpress.com/2009/04/28/adventures-in-mediacenter-land/] [http://alediaferia.wordpress.com/2009/04/28/get-your-cover/] [http://alediaferia.wordpress.com/2009/05/27/plasmatube/] [http://alediaferia.wordpress.com/2009/06/11/browsing-your-medias/] [http://alediaferia.wordpress.com/2009/06/17/rating-your-medias/] [http://alediaferia.wordpress.com/2009/06/24/media-center-quick-update/] [http://alediaferia.wordpress.com/2009/07/11/still-alive/] [http://alediaferia.wordpress.com/2009/08/08/mediacenter-again/] [http://alediaferia.blogspot.com/2009/08/gsoc-ends-mediacenter-continues.html] [http://alediaferia.blogspot.com/2009/09/plug-your-model-in-mediacenter.html]
+----
+Find the older design and discussions here [[/History/]]