Adding new scripts. An example python script playing video, and a python script which parses RSS2 feeds and

produces JavaScript for playing the videos from the "enclosures" in the feed.

layer.cpp - small check to avoid a segmentation fault on a null pointer.

scripts/javascript/examples/script_generator/plumi_generator.py

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+#/usr/bin/python2.5
+# andy@engagemedia.org
+#generate a FreeJ javascript file, using a RSS2 feed
+
+from elementtree import ElementTree as et
+from Cheetah.Template import Template
+import urllib
+import os
+import shutil
+
+RSS_FILE="http://www.engagemedia.org/featured-videos/RSS2"
+JAVASCRIPT_TEMPLATE="plumi_template.js"
+JAVASCRIPT_FILE="plumi.js"
+
+#download latest RSS2 
+print "fetching %s " % RSS_FILE
+feed = urllib.urlopen(RSS_FILE)
+print "parsing %s " % RSS_FILE
+parsed_feed = et.parse(feed)
+
+#setup the parameters from channel
+print "making js file %s " % JAVASCRIPT_FILE
+data_map = {}
+
+#download image, and remember path
+image_url = parsed_feed.find('channel').find('image').find('url').text
+#get the image
+print "fetching image logo %s " % image_url
+downloaded_image=urllib.urlretrieve(image_url)
+#save it somewhere sensible.
+image_name=os.path.basename(image_url)
+shutil.copyfile(downloaded_image[0],image_name)
+#the abs file path
+image_file_path=os.path.abspath(image_name)
+
+data_map['image_file_path'] = image_file_path
+
+
+data_map['channel_title'] = parsed_feed.find('channel').find('title').text
+data_map['videos'] = []
+
+for video_elem in parsed_feed.getiterator('enclosure'):
+    video_to_play = video_elem.get('url')
+    js_var_name = "video_%s" % (len(data_map['videos']))
+    video_dict = {'url':video_to_play, 'js_var_name':js_var_name}
+    data_map['videos'].append(video_dict)
+
+#write the new javascript file.
+t = Template(file=JAVASCRIPT_TEMPLATE, searchList=[data_map])
+f=open(JAVASCRIPT_FILE, 'w')
+f.write(t.respond())
+f.close()

scripts/javascript/examples/script_generator/plumi_template.js

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+// andy@engagemedia.org
+// templated example script for using FreeJ and Plumi (plone video CMS) 
+//
+
+header_text = new TextLayer();
+header_text.start();
+add_layer(header_text);
+header_text.set_position(70,0);
+header_text.size(50);
+header_text.color(255,0,0);
+header_text.print("$channel_title")
+//header_text.set_fps(25);
+
+logo_image = new ImageLayer();
+logo_image.open("$image_file_path")
+logo_image.activate(true);
+logo_image.start()
+logo_image.set_position(0,0);
+add_layer(logo_image);
+
+#for $video in $videos
+
+    $video.js_var_name = new MovieLayer("$video.url")
+    add_layer($video.js_var_name);
+
+    ${video.js_var_name}.set_position(50,70);
+    ${video.js_var_name}.activate(true);
+
+#end for
+
+// START streaming
+
+encoder = new VideoEncoder(10, 64000, 5, 24000); 
+encoder.stream_host("giss.tv"); 
+encoder.stream_port(8000); 
+encoder.stream_title("$channel_title")
+encoder.stream_username("source"); 
+encoder.stream_password("2t645"); 
+encoder.stream_mountpoint("freej-test.ogg"); 
+register_encoder(encoder); 
+encoder.start_stream(); 
+
+//END streaming
+