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Bug 637056 - playbin2/playsink: doesn't propagate errors properly
playbin2/playsink: doesn't propagate errors properly
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
git master
Other Linux
: Normal major
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
: 586430 (view as bug list)
Depends on:
Blocks:
 
 
Reported: 2010-12-11 21:08 UTC by Tim-Philipp Müller
Modified: 2013-08-16 11:43 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Tim-Philipp Müller 2010-12-11 21:08:21 UTC 
$ gst-launch-0.10 playbin2 uri=file:///usr/share/sounds/email.wav audio-sink='alsasink device=foobar' 
ERROR: from element /GstPlayBin2:playbin20/GstPlaySink:playsink0: Configured audiosink bin0 is not working.
Additional debug info:
gstplaysink.c(1869): gen_audio_chain (): /GstPlayBin2:playbin20/GstPlaySink:playsink0

vs. 

GST_ERROR_SYSTEM gstelement.c:1828:gst_element_message_full:<alsasink0> posting message: Could not open audio device for playback.

----- or ----

GST_ERROR_SYSTEM gstelement.c:1828:gst_element_message_full:<alsasink0> posting message: Could not open audio device for playback. Device is being used by another application.
Comment 1 Sebastian Dröge (slomo) 2010-12-12 10:27:25 UTC 
That probably happens because the audio sink opens the device when going to READY but the audio sink is only added to playsink after it successfully changed the state to READY.

Maybe we could set a custom bus for the sinks to provide better error messages
Comment 2 Sebastian Dröge (slomo) 2011-05-20 06:57:58 UTC 
*** Bug 586430 has been marked as a duplicate of this bug. ***
Comment 3 Sebastian Dröge (slomo) 2013-08-16 11:43:54 UTC 
That works much better now as the errors of explicitly set sinks are now propagated to the application:

$ gst-launch-1.0 playbin uri=file://(pwd)/test1.flac audio-sink="alsasink device=foobar"
Setting pipeline to PAUSED ...
0:00:00.063848908  7445      0x11b8520 ERROR                playbin gstplaybin2.c:5081:activate_group:<playbin0> failed to activate sinks
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstBin:bin0/GstAlsaSink:alsasink0: Could not open audio device for playback.
Additional debug info:
gstalsasink.c(851): gst_alsasink_open (): /GstBin:bin0/GstAlsaSink:alsasink0:
Playback open error on device 'foobar': No such file or directory
Setting pipeline to NULL ...
Freeing pipeline ...