[gst-devel] blue tooth issue with gstreamer

[Zheng, Huan]

Basically I think it's an alsa configuration issue. You may need to check your alsa configuration file and create a Bluetooth device inside it.
Please see below as an example. And then search on the internet to find more info.

pcm.m_voice{
    type bluetooth
    device "00:07:A4:B5:D8:9E"   #optional, connects to specific device instead the default one
    profile "voice"             #optional, supported profiles are: auto, hifi and voice
}
pcm.bluetooth{
    type bluetooth
    device "00:07:A4:B5:D8:9E"   #optional, connects to specific device instead the default one
    profile "hifi"             #optional, supported profiles are: auto, hifi and voice
}
pcm.hd{
    type hw
    device 0
    card 0
}
pcm.!default{
    type plug
    slave.pcm "hd"
}

From: satish kumar [mailto:gsatish10 at gmail.com]
Sent: Monday, May 31, 2010 8:06 PM
To: gstreamer-devel at lists.sourceforge.net
Subject: [gst-devel] blue tooth issue with gstreamer

 Hi all

 I need "aplay" command format to play audio song in BT headset (what are presettings to play headset
   I am palying giving following commands.

   Killall hcid
   uim /dev/ttyO1 3686400 none /sys/uim/pid &
   hciconfig hci0 up
   hciconfig -a
   hcid -s -f /etc/bluetooth/hcid.conf

   and I am giving amixer seting commands as per I3.7-Pre2 release.

amixer cset name='HandsfreeL Mux' 2
amixer cset name='HandsfreeL Switch' 1
amixer cset name='HandsfreeR Mux' 2
amixer cset name='HandsfreeR Switch' 1
amixer cset name='DAC2 Analog Playback Volume' 16 amixer cset name='HeadsetL Mixer AudioL2' 1 amixer cset name='HeadsetR Mixer AudioR2' 1 amixer cset name='Analog Left Main Mic Capture Switch' 1 amixer cset name='Analog Right Sub Mic Capture Switch' 1 amixer cset name='Analog Left Headset Mic Capture Switch' 1

Once it is done I am paring headset to zoom3 Device.
When I am playing "gst-launch filesrc location"

  gst-launch filesrc location=satish/track4.mp3 ! mp3parse ! goodec_mp3 ! a
  lsasink device=bluetooth


I am getting the error as

   MP3 Decoder string device :i/:o//codec Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/
GstAlsaSink:alsasink0: Could not open  audio device for playback.
Additional debug info:
gstalsasink.c(690): gst_alsasink_open (): /GstPipeline:pipeline0/GstAlsaSink:als
asink0:
Playback open error on device 'bluetooth': No such file or directory Setting pipeline to NULL ...
Total time: 0.000000 seconds
Freeing pipeline ...
~7
µ"<@~7



I am using gstreamer 0.10 version
Linux 2.6.32 RC7 kernel
Board is  zoom3.


Can you please help me out what are reasons for the above error.



And I am giving aplay command in the following format.
 Aplay -D bluetooth track4.wav

I am getting error as

 ALSA lib pcm.c:2211:(snd_pcm_open_noupdate) Unknown PCM bluetooth
 aplay: main:608: audio open error: No such file or directory
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