HELP gst-launch can not decode mp3 normally when running on lexra(MIPS like) CPU

[Sebastian Dröge]

On Fr, 2013-11-15 at 21:59 +0800, Diaz Soho wrote:
> > # # gst-launch-0.10 -v playbin2
> > > uri=http://192.168.1.3:9000/disk/DLNA-PNMP3-OP01-F
> > > LAGS01700000/O0$1$8I28173.mp3
> >
> > Looks like 'mad' is being used for mp3 decoding (possibly not the most
> > efficient decoder for embedded system).
> >
> > I think you'll have to simplify the pipeline and try things like:
> >
> >
> > gst-launch-0.10 http://192.168.1.3:9000/disk/DLNA-PNMP3-OP01-F !
> > mpegaudioparse ! mad ! fakesink dump=true
> >
> > gst-launch-0.10 http://192.168.1.3:9000/disk/DLNA-PNMP3-OP01-F !
> > mpegaudioparse ! mad ! alsasink
> >
> > gst-launch-0.10 http://192.168.1.3:9000/disk/DLNA-PNMP3-OP01-F !
> > mpegaudioparse ! mad ! audioconvert ! alsasink
> >
> > gst-launch-0.10 http://192.168.1.3:9000/disk/DLNA-PNMP3-OP01-F !
> > mpegaudioparse ! mad ! audioconvert ! audio/x-raw-int,width=16 !
> > alsasink
> >
> > etc.
> >
> > Shouldn't there be some mp3 decoder that makes use of the DSP on the
> > Lexra system? (Maybe it needs to be wrapped into a GStreamer element)
> >
> > ======================================================
> 
> 
> 
> Hi Tim,
> 
> 
> Thanks a lot for your input!
> I will try it.
> And there is no DSP support by my embedd Lexra CPU.
> Do you mean maybe I have to use another mp3 decoder that may have more
> efficient than mad, right?
> As your opinion, which mp3 decoder have more efficient that most people
> used?

The one based on mpg123 should be faster (mpg123audiodec) or the one
from libav (avdec_mp3, or ffdec_mp3 if you still use GStreamer 0.10).

-- 
Sebastian Dröge <sebastian at centricular.com>
Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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