pipeline dont change to PLAYING

[Liu, Bin]

Hi,

I'm new to gstreamer, and I compiled gstreamer-0.10.11,
gst-plugins-base-0.10.11, and gst-plugins-good-0.10.5 for ARM board. - I
don't want to explain why not use the latest version this time :) - When
run the pipeline:

        gst-launch -v --gst-debug-level=4 filesrc location=t.avi !
avidemux name=t  t.audio_00 ! fakesink   t.video_00 ! fakesink

It doesn't change to PLAYING state. Following is the last part of the
log.

0:00:15.863467000  1118 0x32900 DEBUG             basesink
gstbasesink.c:1081:gst_base_sink_wait_preroll:<fakesink1> wait for
preroll...
0:00:15.531643000  1118 0x782a0 DEBUG                  bin
gstbin.c:2062:gst_bin_recalc_func:<pipeline0> doing state recalc
0:00:15.865721000  1118 0x782a0 INFO            GST_STATES
gstbin.c:1321:gst_bin_recalc_state:<pipeline0> recalc state
0:00:15.867391000  1118 0x782a0 INFO            GST_STATES
gstbin.c:1331:gst_bin_recalc_state:<pipeline0> checking element states
0:00:15.869160000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1704:gst_element_get_state_func:<fakesink1> getting state
0:00:15.870837000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1780:gst_element_get_state_func:<fakesink1> state current:
PAUSED, pending: VOID_PENDING, result: SUCCESS
0:00:15.872851000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1704:gst_element_get_state_func:<fakesink0> getting state
0:00:15.874556000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1780:gst_element_get_state_func:<fakesink0> state current:
READY, pending: PAUSED, result: ASYNC
0:00:15.876692000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1704:gst_element_get_state_func:<t> getting state
0:00:15.878388000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1780:gst_element_get_state_func:<t> state current: PAUSED,
pending: VOID_PENDING, result: SUCCESS
0:00:15.880310000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1704:gst_element_get_state_func:<filesrc0> getting state
0:00:15.882042000  1118 0x782a0 DEBUG           GST_STATES
gstelement.c:1780:gst_element_get_state_func:<filesrc0> state current:
PAUSED, pending: VOID_PENDING, result: SUCCESS
0:00:15.884078000  1118 0x782a0 INFO            GST_STATES
gstbin.c:1421:gst_bin_recalc_state:<pipeline0> bin RETURN is now ASYNC
0:00:15.885834000  1118 0x782a0 DEBUG                  bin
gstbin.c:2066:gst_bin_recalc_func:<pipeline0> state recalc done

Am I using a wrong pipeline? How to make the pipeline running?
PS. The t.avi is a mpeg4/mp3 (video/x-xvid) movie clip.

Thanks and regards,
-Bin.

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[Tim-Philipp Müller-2]

On Wed, 2008-05-21 at 16:35 -0500, Liu, Bin wrote:

> I'm new to gstreamer, and I compiled gstreamer-0.10.11,
> gst-plugins-base-0.10.11, and gst-plugins-good-0.10.5 for ARM board. - I
> don't want to explain why not use the latest version this time :) - When
> run the pipeline:
>
> gst-launch -v --gst-debug-level=4 filesrc location=t.avi !
> avidemux name=t  t.audio_00 ! fakesink   t.video_00 ! fakesink
>
> It doesn't change to PLAYING state.

You need to use queues, ie.  t.audio_00 ! queue ! fakesink and
t.video_00 ! queue ! fakesink  otherwise it won't preroll (google the
list archive for demuxer/tee/queue/preroll for details).

Cheers
 -Tim




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[Liu, Bin]

Thanks Tim.
queue helps.

-Bin.

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Tim Müller
Sent: Wednesday, May 21, 2008 5:00 PM
To: [hidden email]
Subject: Re: [gst-devel] pipeline dont change to PLAYING

On Wed, 2008-05-21 at 16:35 -0500, Liu, Bin wrote:

> I'm new to gstreamer, and I compiled gstreamer-0.10.11,
> gst-plugins-base-0.10.11, and gst-plugins-good-0.10.5 for ARM board. - I
> don't want to explain why not use the latest version this time :) - When
> run the pipeline:
>
> gst-launch -v --gst-debug-level=4 filesrc location=t.avi !
> avidemux name=t  t.audio_00 ! fakesink   t.video_00 ! fakesink
>
> It doesn't change to PLAYING state.

You need to use queues, ie.  t.audio_00 ! queue ! fakesink and
t.video_00 ! queue ! fakesink  otherwise it won't preroll (google the
list archive for demuxer/tee/queue/preroll for details).

Cheers
 -Tim




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