how to get the audio number in the file

[Tim-Philipp Müller]

On Wed, 2012-09-12 at 19:10 -0700, DBOYaoao wrote:

>     Can anybody help me?

If you're using playbin2, wait for the ASYNC_DONE message on the
pipeline's GstBus, then do:

  int num_audio;

  g_object_get (playbin2, "n-audio", &num_audio, NULL);

If you're not using playbin2, you need to tell us what you are
using/doing instead, because without any context whatsoever we can only
guess.

 Cheers 
  -Tim