[meta-freescale] iMX6ULEVK and MP3 Decoding (GStreamer) - Not working

[Cjb_SW Freescale]

Dear All,
I built a fsl-image-multimedia-full image for my imx6ulevk board.
The environment is updated to *krogoth *branch.
When I try to play a mp3 file, by launching "*gst-play-1.0 mymusic.mp3*" it
ends with:

*Press 'k' to see a list of keyboard shortcuts.*
*Now playing /music/02  News.mp3*
*WARNING No decoder available for type 'audio/mpeg, mpegversion=(int)1,
mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2,
parsed=(boolean)true'.*
*WARNING debug information:
../../../gst-plugins-base-1.6.3/gst/playback/gsturidecodebin.c(939):
unknown_type_cb (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0*
*ERROR Your GStreamer installation is missing a plug-in. for
file:///music/02%20%20News.mp3*
*ERROR debug information:
../../../gst-plugins-base-1.6.3/gst/playback/gsturidecodebin.c(1006):
no_more_pads_full (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0:*
*no suitable plugins found:*
*../../../gst-plugins-base-1.6.3/gst/playback/gstdecodebin2.c(4555):
gst_decode_bin_expose ():
/GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0:*
*no suitable plugins found:*
*Missing decoder: MPEG-1 Layer 3 (MP3) (audio/mpeg, mpegversion=(int)1,
mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2,
parsed=(boolean)true)*

*Reached end of play list.*

And nothing exit from audio output.
Am I missing something?
Should it work with the demo image that I built?

Thanks in advance to everybody.
Simone
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