maemo.org - Talk - View Single Post - Radio buffer / timeshift

AapoRantalainen	2013-12-04 , 20:58
Posts: 839 \| Thanked: 3,386 times \| Joined on Mar 2009	#4

Originally Posted by vkthor

Would it be possible to write the FM radio output to a buffer or something like that, effectively "pausing" the radio stream so I can listen to it a couple of seconds "behind" live streaming?

a)
I tested what comes first to my mind (warning: it is not yet working)

Connect headset for antenna, start qradio and start playing.
Then on terminal:

Code:

gst-launch autoaudiosrc device=hw:1 ! audioconvert !  queue min-threshold-time=1000000000  !  autoaudiosink

(take audio which is going to out, delay it one second and forward it back)

-> You will hear audio two times and it has bad snapping (not even smooth echo).
I don't know how to continue with that.

b) modify code of e.g. qradio. I already fetched the code, but didn't understand how it works.
Couple of other radio application listed on wiki:
http://maemo.org/packages/view/cfmradio/
http://maemo.org/packages/view/fmradio/

c) Compile gstplugin: v4l2radio e.g. from harmattan:

Code:

git clone git@gitorious.org:harmattan-projects/gst-plugins-good.git

(Source-deb would be better. Link please?)
Harmattan use newer gstreamer, so plugin might need code modifications and then it could work.

And use it: http://harmattan-dev.nokia.com/docs/...v4l2radio.html

I'm not sure would it then just work. There are example for Ubuntu where audio comes from mic and goes to speaker:
http://ubuntuforums.org/showthread.php?t=1189559

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