Web presentation of Open Office slides
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Motivation
TODO: Describe why viewing talks directly in the browser is desirable
Technology Requirements
- R1: Viewing talks with slides directly on the web
- R2: Not requiring visitors to have Open Office installed
- R3: Not requiring people to download the presentation
- R4: barrier-free, (e. g. text view of slide-images, display transcript of audio)
- R5: Support for all common browsers, including older browsers that are still in common use
- R6: Support audio
- R7: Audio is optional
- R8: Support for small display screens (e. g. tablets, mobile phones)
- R9: Should work without flash plugin and without JavaScript but may use these technologies if available
What is wrong with the standard html export in Open Office Impress ?
- ok R1
- ok R2
- ok R3
- fail R4: Requires Frame-Support in Browser. There is a html view that would work without frames, but it's not reachable from the start page.
- unknown R5
- fail R6: For audio an embed-tag is created which only works if the files are saved to disk but not in the world wide web
- ok R7
- fail R8: bulky frameset, slide images is not resized but gets scroll bars
- fail R9: requires JavaScript for navigation
"Your browser does not support frames."
On a small screen, the slide image is not zoomed out, but scroll bars appear
JavaScript is used for navigation without alternative
Approach
- Use OpenOffice HTML-Export as base
- with frames
- with notes (if there are notes)
- browser colors
- black arrow icons without borders
- Converting ogg-files to mp3 for Microsoft Internet Explorer
- http://code.google.com/p/ogg2mp3/
- ogginfo returns 1 on my recorded files which causes ogg2mpd to abort.
--- /usr/bin/ogg2mp3 2010-09-28 21:07:25.000000000 +0200
+++ ogg2mp3 2011-09-27 22:17:55.474323127 +0200
@@ -147,7 +147,7 @@
# read ogginfo output
OGGINFO=$( LANG=C ogginfo "$1" )
- test "$?" != "0" && fail "ogginfo failed!" "$OGGINFO"
+ #test "$?" != "0" && fail "ogginfo failed!" "$OGGINFO"
# determine nominal bitrate of source file
BITRATE=$( echo "$OGGINFO" | grep "Nominal bitrate:" | cut -d' ' -f3 )