scramble for sound card

[christie]

hi all,
   I make my own application with gstreamer,but i can not use another player such as vlc or totem, to play a music file when i use it.If I have already played a music with totem or vlc, I can not use my application to play sound. It says that the sound card is used by other application. However, vlc and totem can play music at the same time.It looks like that gstreamer scrambles for sound card agaist other players. The same thing happens when i use gst-launch lines.
  How can I solve this problem? Is there any element that can be used here?
  I want to use my application and other soundplayers at the same time.

thanks & regards!

                                                                                                           christie

[Philip Jägenstedt]

In all likelihood this isn't a GStreamer issue. If you use ALSA, make
sure you use dmix. Otherwise, recent Ubuntu-releases use pulseaudio by
default which handles this and other things (and breaks S/PDIF
output).

Philip

On Mon, Jul 13, 2009 at 03:59, christie<[hidden email]> wrote:

>
> hi all,
>   I make my own application with gstreamer,but i can not use another player
> such as vlc or totem, to play a music file when i use it.If I have already
> played a music with totem or vlc, I can not use my application to play
> sound. It says that the sound card is used by other application. However,
> vlc and totem can play music at the same time.It looks like that gstreamer
> scrambles for sound card agaist other players. The same thing happens when i
> use gst-launch lines.
>  How can I solve this problem? Is there any element that can be used here?
>  I want to use my application and other soundplayers at the same time.
>
> thanks & regards!
>
>
> christie
> --
> View this message in context: http://www.nabble.com/scramble-for-sound-card-tp24423139p24423139.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
>
>
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--
Philip Jägenstedt

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[Tim-Philipp Müller-2]

On Fri, 2009-07-10 at 00:48 -0700, christie wrote:

>    I make my own application with gstreamer,but i can not use another player
> such as vlc or totem, to play a music file when i use it.If I have already
> played a music with totem or vlc, I can not use my application to play
> sound. It says that the sound card is used by other application. However,
> vlc and totem can play music at the same time.It looks like that gstreamer
> scrambles for sound card against other players. The same thing happens when i
> use gst-launch lines.
>   How can I solve this problem? Is there any element that can be used here?
>   I want to use my application and other soundplayers at the same time.

Check what the other applications use for sound output, and then use the
same sound output in GStreamer (e.g. pulsesink for PulseAudio, or
alsasink device=dmix:0 or whatever alsa device these apps use).

Cheers
 -Tim



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