Party Animal: GStreamer visualisation! - maemo.org

twaelti · #1 2009-11-18, 20:29

The power of Maemo - now as a party animal!

Another hidden gem discovered: Thanks to the inbuilt GStreamer multimedia framework, I was able to get music visualisation on my N900

This also works using TV-Out, so once built into a suitable media player, I guess the N900 can become the center of any party

I also uploaded a short video on YouTube (read the disclaimer about flickering TV - it's my cam, not the N900...)

Here is the pipeline I used:

Code:

gst-launch filesrc location=/media/mmc1/universe.mp3 ! decodebin ! audioconvert ! tee name=myT myT. ! queue ! pulsesink myT. ! queue ! goom ! ffmpegcolorspace ! xvimagesink

I hope for the inbuilt media player, Media Box, Canola or Vagalume to soon feature great visualisations on the N900 ...

pycage · #2 2009-11-18, 21:30

There is already such a plugin for MediaBox buried somewhere deep in my drawer. Time to get it cleaned up and integrated into MediaBox.

slaxium · #3 2009-11-18, 21:42

Nice, i'll loving that "phone".
Is it possible to use all visualizations which are available for the normal gstreamer, or does it only work with this one? Of course the is a limitation of Hardware

twaelti · #4 2009-12-08, 20:04

Quote:

Originally Posted by slaxium

Is it possible to use all visualizations which are available for the normal gstreamer, or does it only work with this one? Of course the is a limitation of Hardware

Sorry for the late reply, but missed your post. But good news: I've played around a bit more, and the two other things that I found are "monoscope" and "spectrum". Hadn't much success with Spectrum, but Monoscope works well!

(sorry for the image quality, but it's not possible to take on-device screenshots in this mode)

Coolest thing is to attach Monoscope directly to the Microphone to get real-time voice/microphone waveform analysis:

Code:

gst-launch pulsesrc ! audioconvert ! tee ! queue ! monoscope ! ffmpegcolorspace ! xvimagesink

Try whistling at higher frequencies and watch the wavelength shrink...
Anybody to hook up a signal through the mic line-in?

The power of Maemo

nashith · #5 2009-12-08, 20:49

@twaelti, awesome idea about the signal input. Wonder if this would work http://xoscope.sourceforge.net/

vinz486 · #6 2010-01-17, 23:52

Works on my Ubuntu box too :-D

Same command line on my pc and on my phone is "the new era" ...

DUDEXYZ · #7 2010-09-12, 12:59

dude....i dint understand.....can u tell me in detail how to install those visualisation....sorry for my bad english....thanks in advance

AgentZ · #8 2010-09-13, 20:28

Are these easter eggs in the phone or are you downloading something from somewhere? The way I understand it, I can now have visualisation with all my music files is that correct?

MohammadAG · #9 2010-09-13, 21:11

As root:

Code:

apt-get install gstreamer0.10-plugins-good

then run the command he posted in the first post.

allnameswereout · #10 2010-09-13, 21:26

Someone should port Libvisual to Maemo

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