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libsaria: Don't change audio pipeline state if no file loaded 

I only want to change to gst.STATE_PLAYING or gst.STATE_PAUSED if the
pipeline currently has a file loaded.  Not doing this can cause an
exception in position() when get_state() returns gst.STATE_READY instead
of gst.STATE_NULL.
This commit is contained in:
Bryan Schumaker 2011-05-15 10:23:24 -04:00
parent 0f78c7b80c
commit 67369e88a7
1 changed files with 11 additions and 2 deletions
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13
libsaria/audio/pipeline.py
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@ -18,11 +18,20 @@ def load_file(type, file):
reset()
player.set_property("uri", "%s://%s" % (type, file))
def has_file():
return player.get_property("uri") != None
def change_state(state):
if has_file() == True:
player.set_state(state)
else:
player.set_state(gst.STATE_NULL)
def play():
player.set_state(gst.STATE_PLAYING)
change_state(gst.STATE_PLAYING)
def pause():
player.set_state(gst.STATE_PAUSED)
change_state(gst.STATE_PAUSED)
def stop():
pause()