[gst-embedded] Question on gstreamer audio playback on ARM/Linux

[Felipe Contreras]

On Thu, Jul 17, 2008 at 1:59 PM,  <jfliu at solomon-systech.com> wrote:
> Hi, all,
>
> I am doing a project to port the gstreamer framework to a target board,
> which is running linux 2.6.24 on ARM 9, and the RAM on the board is 32Mbyte.
>
> When I tried to use the gstmad and alsalink plugin to play a MP3 file
> ( "gst-launch location = abc.mp3 ! mad ! alsasink"), I found there is
> constant audio underrrun reported from the ALSA driver and thus there are
> on/off in the audio output. I've also tried other MP3 demux/decoders such as
> ffdemux_mp3 and ffdec_mp3 but the result is same. After I enabled the
> debugging on the filesrc plugin, I noticed there is a break/pause sometimes
> (happening randomly) during the playback. I suspect this could be the reason
> of the audio underrun but I don't know why this break/pause happens.
>
> Anyone has any idea? Please help.

You might want to try adding mp3parse before the decoder, but my bet
is on the ALSA driver.

Best regards.

-- 
Felipe Contreras