micolous.id.au » Uncategorized

Side-by-side video in gst-launcher

micolous — Mon, 11 Apr 2011 15:14:59 +0000

This little snippit takes video from two V4L2 sources (like webcams), and displays them side by side. The script in question is setup for 320×240 MJPEG, tweak the numbers and you get different resolution from your video sources.

One important parameter if you’re adding more sources is border-alpha. This needs to be set to 0, so that the black border that is added around a video source is transparent so you can push it on top of another video frame.

This is handy if you have two webcams, you can use this to setup side-by-side stereo display to 3D glasses. Just make sure to point your cameras at the right angle, otherwise your convergence will be all messed up.

You need the gstreamer-tools package in order to use the script.

#!/bin/sh
gst-launch \
	v4l2src device=/dev/video1 ! "image/jpeg,width=320,height=240" ! jpegdec ! "video/x-raw-yuv" ! videobox right=-320 border-alpha=0 ! videomixer name=mix ! \
	ffmpegcolorspace ! xvimagesink \
	v4l2src device=/dev/video2 !  "image/jpeg,width=320,height=240" ! jpegdec ! "video/x-raw-yuv" ! videobox left=-320 ! mix.

Internode Radio playlist files for XBMC (and others)

micolous — Tue, 02 Mar 2010 03:37:55 +0000

I got bored and created playlist files for all the radio stations that Internode mirror. They point to the playlist files on the page so should keep updated if the servers get changed again.

This file doesn’t update at all if a station gets added or removed from the list.

In XBMC, you just have to put this ZIP file in a folder it uses as a source, and you can browse into it and play radio stations without extracting the archive. In other players, you have to extract it yourself.

Download the archive.

Update (2010-03-16): Internode added automatically generated playlist files to their website in various formats, rendering this obsolete.

au_xmltvgen_austext will definitely stop working forever on September 30th, 2009

micolous — Mon, 31 Aug 2009 11:53:36 +0000

I have discovered that AUSTEXT is shutting down on September 30th, 2009. Presently, the only over-the-air program guide over DVB-T (terrestrial digital television) appears to be very crippled, only showing the current and next program (when it could show a whole lot more). Seems that some television stations still aren’t learning from their past mistakes about electronic programme guides.

Channel 7 cite the increasing availability of the information over the internet and their website (Yahoo!7) as a reason for terminating the AUSTEXT service.

As a result, au\_xmltvgen\_austext will definitely stop working at that time, forever.

The page will stay up for posterity’s sake as I believe I took the cake for the most inventive way to get TV-guides into a computer-readable format, and it was a interesting learning experience as my first Python script.

New domain

micolous — Sun, 16 Jul 2006 13:51:46 +0000

There’s a new domain for this site: micolous.id.au. lz129.concreteairship.com will hang around, however it’s depricated.

A new beginning

micolous — Sun, 20 Nov 2005 21:24:29 +0000

I’m now moving all my [old content][oldsite] over to WordPress now. This means that it all is nicely managed through there, and there’s less ugly HTML pages. I’ve put on a new theme, it’s based on “fSimple”. I’ve made some changes, like removing the footer, making the header stick, making the page wider, and changing all the colours. It’s a bit messed up, but it’s different.

I’ve also moved across to `lz129.concreteairship.com`. Hindenburg.

[oldsite]: /~michael/