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Add-on:Artist Slideshow

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Revision as of 20:25, 13 May 2012 by Pkscout (Talk | contribs)
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Artist Slideshow
Author: ronie/kyleejohnson (pkscuot)
Type: Program
Version: 1.3.1
Repo: XBMC.org (v11)
XBMC.org (v12)

Summary: Download images and additional info of the currently playing artist

Addon to download images and additional information from Last.FM and htbackdrops.com of the currently playing artist. The images, along with local artists' images, and info can be used by the skin to create a slideshow for the artist being listened to.

Contents

1 Installing

To install this add-on you must do so from the Add-on Manager from within XBMC by going to:

  1. Settings
  2. Add-ons
  3. Get add-ons
  4. XBMC.org Add-ons
  5. Program Add-ons
  6. Artist Slideshow
  7. Install

Version 0.1.0 is the last version available for Dharma. The information below is for version 1.3.1.

2 Features

If you are using the default Confluence skin (or Confluence Vertical), you can download the modified files from here

3 Limitations

4 Addon settings

There are three groupings of settings: Download, Slideshow, and Advanced.

4.1 Download

Download images from last.fm: (default true)
(self explanatory)

Download images from htbackdrops.com: (default false)
(self explanatory)

Minimal image width and height: (default 0,0)
any images smaller than the set dimensions will not be downloaded.

Download only 16:9 images: (default false)
will discard any images that aren't really, really close to a 16:9 aspect ratio.

Download additional artist info: (default false)
includes information like the artist's bio and artists similar to the one to which you are listening. includes option to select download language. skin must support this extra information, or nothing will be displayed.

4.2 Slideshow

Local artist folder: (default none)
path to a directory that has artist images. Images must be organized in artist/extrafanart/

Fallback slideshow folder: (default none)
path to a directory of images that should be used if no local or remote images can be found.

Priority: (default remote first)
three options: remote first, local first, both
remote first will try and download images from remote sites. if none found will use local images. if none found will use fallback slideshow
local first will use local images. if none found will try and download remote images. if none found will use fallback slideshow
both will check for local images first. if they exist the downloaded images will be placed in the same directory as the local images. if not remote images will be stored in normal cache dir.

Override slideshow folder: (default none)
path to a directory of images that should be used intead of artist artwork. With this set no artwork will ever be downloaded.

4.3 Advanced

Limit size of download cache: (default false)
if enabled, the download cache will be trimmed (oldest first) to keep the size below the specified minimum

Maximum cache size (in megabytes): (default 1024)
if Limit size of download cache is set to true, this allows the user to specify the maximum size of the cache

5 How to use this addon in your skin

5.1 Changes to MusicVisualisation.xml

To run the script:

<onload>RunScript(script.artistslideshow)</onload>

On AppleTV if ArtistSlideshow isn't updating after the first artist, use this instead:

<onload>RunScript(script.artistslideshow, daemon=True)</onload>

To add a multiimage conrol:

<control type="multiimage">
    <posx>0</posx>
    <posy>0</posy>
    <width>1280</width>
    <height>720</height>
    <imagepath background="true">$INFO[Window(Visualisation).Property(ArtistSlideshow)]</imagepath>
    <aspectratio>keep</aspectratio>
    <timeperimage>10000</timeperimage>
    <fadetime>2000</fadetime>
    <randomize>true</randomize>
</control>

5.2 Accessing Script from Other Screens

You might want to use Artist Slideshow to display images somewhere other than on the music visualization. To do that you need to start Artist Slideshow when XBMC starts using DAEMON mode. To do that use:

 RunScript(script.artistslideshow, daemon=True)

5.3 New skin properties

Window(Visualisation).Property(ArtistSlideshow)

This is the path to the directory containing the downloaded images for the currently playing artist


Window(Visualisation).Property(ArtistSlideshowRunning)

This one is used internally by the script to check if it is already running. There's no need to use this property in your skin.


Window(Visualisation).Property(ArtistSlideshow.ArtistBiography)

Artist biography from last.fm


Window(Visualisation).Property(ArtistSlideshow.%d.SimilarName)
Window(Visualisation).Property(ArtistSlideshow.%d.SimilarThumb)

Similar artists


Window(Visualisation).Property(ArtistSlideshow.%d.AlbumName)
Window(Visualisation).Property(ArtistSlideshow.%d.AlbumThumb)

Albums by the artist

6 How to call this addon from another addon

To use this addon to provide the background for another addon, the calling addon must create a window that uses a multimage control:

<control type="multiimage">
    <posx>0</posx>
    <posy>0</posy>
    <width>1280</width>
    <height>720</height>
    <imagepath background="true">$INFO[Window.Property(ArtistSlideshow)]</imagepath>
    <aspectratio>keep</aspectratio>
    <timeperimage>10000</timeperimage>
    <fadetime>2000</fadetime>
    <randomize>true</randomize>
    <animation effect="fade" start="0" end="100" time="300">Visible</animation>
    <animation effect="fade" start="100" end="0" time="300">Hidden</animation>
</control>

That window must have an infolabel in which the currently playing artist is stored (suggested name is CURRENTARTIST). It is the responsibility of the calling addon to change that infolabel when the artist changes.

6.1 Additional script/skin properties available

Window.Property(ArtistSlideshow)

This is the path to the directory containing the downloaded images for the currently playing artist.


Window.Property(ArtistSlideshow.ArtistBiography)

Artist biography from last.fm


Window.Property(ArtistSlideshow.%d.SimilarName)
Window.Property(ArtistSlideshow.%d.SimilarThumb)

Similar artists


Window.Property(ArtistSlideshow.%d.AlbumName)
Window.Property(ArtistSlideshow.%d.AlbumThumb)

Albums by the artist


Window.Property(ArtistSlideshowRunning)

This one is used internally by Artist Slideshow to check if it is already running. There's no need to use this property in the calling addon's skin.


Window.Property(ArtistSlideshow.ExternalCall)

An external addon needs to set this to True so that Artist Slideshow will run properly when called by an external script. This property should be cleared to tell ArtistSlideshow to stop running.


Window.Property(ArtistSlideshow.CleanupComplete)

This one is used internally by Artist Slideshow to tell an external script that ArtistSlideshow is done running and is exiting.


6.2 Calling the addon

Artist Slideshow does not exit after being called. It continues to run to check for changes in the artist infolabel. Becasue of that, the calling addon will have to create another thread for Artist Slideshow. The calling addon needs to import the python theading module for this to work.

def runArtistSlideshow(self):
    #startup artistslideshow
    xbmcgui.Window(xbmcgui.getCurrentWindowId()).setProperty("ArtistSlideshow.ExternalCall", "True")
    #assumes addon is using suggested infolabel name of CURRENTARTIST
    artistslideshow = "RunScript(script.artistslideshow,windowid=%s&artistfield=%s)" % (xbmcgui.getCurrentWindowId(), "CURRENTARTIST")
    xbmc.executebuiltin(artistslideshow)

self.thread = threading.Thread(target=self.runArtistSlideshow)
self.thread.setDaemon(True)
self.thread.start()

The suggestion is for the addon to spawn this thread right after it spawns the window.

6.3 Exiting the addon

When the calling addon is preparing to exit, it must tell Artist Slideshow to stop and wait until it has. This logic should be added *before* the addon's window is destroyed. Failure to include this step will likely cause XBMC to crash.

#tell ArtistSlideshow to exit
xbmcgui.Window(xbmcgui.getCurrentWindowId()).clearProperty("ArtistSlideshow.ExternalCall")
#wait until ArtistSlideshow exits
while (not xbmcgui.Window(xbmcgui.getCurrentWindowId()).getProperty("ArtistSlideshow.CleanupComplete") == "True"):
    time.sleep(1)

7 Getting help

If you need assistance using Artist Slideshow, integrating it a skin, or calling it using another addon, please see the support thread on the XBMC forums.

http://forum.xbmc.org/showthread.php?t=124880
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