[gst-devel] Change pipeline's state to playing, null, playing

Juraj Kubelka juraj.kubelka at googlemail.com
Tue Jun 16 11:37:28 CEST 2009


I tried to change pipeline's state to PLAYING, then to NULL and then to
PLAYING. But the last state change is never happened. It waits forever
(because of blocked method pipeline.get_state()). I found out message which
says: filesink is changing state asynchronously to PLAYING.

0:00:04.310890050  5634 0x132efd0 INFO            GST_STATES
gstbin.c:2197:gst_bin_change_state_func:<pipeline> child 'file' is changing
state asynchronously to PLAYING

But I don't know why. I would like to reuse the same pipeline. For know:
create it, play, stop, play, stop...  Pipeline is simple: alsasrc ! queue !
audioconvert ! vorbisenc ! oggmux ! filesink.

It also says:

0:00:04.393084573  5634 0x160abe0 WARN                oggmux
gstoggmux.c:1132:gst_ogg_mux_process_best_pad:<multiplexer> no subsequent
buffer and EOS not reached
0:00:04.393095274  5634 0x160abe0 WARN             vorbisenc
vorbisenc.c:1196:gst_vorbis_enc_chain:<encoder> Failed to push headers
0:00:04.422744230  5634 0x15de340 INFO               basesrc
gstbasesrc.c:2114:gst_base_src_loop:<source> pausing after gst_pad_push() =

maybe because of a message above when state was changing from PLAYING to

0:00:02.272544776  5634 0x1625690 INFO               basesrc
gstbasesrc.c:2021:gst_base_src_loop:<source> pausing after
gst_base_src_get_range() = wrong-state
0:00:02.272570930  5634 0x132efd0 INFO             GST_EVENT
gstpad.c:4317:gst_pad_send_event:<queue:sink> Received event on flushing
pad. Discarding

Can you give me an advice?
Thank you a lot!
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