[gst-devel] Help needed resolving pipeline error - problem revised

Steven Stromer filter at stevenstromer.com
Wed Jul 25 20:51:53 CEST 2007


> ok. according to the logs it got the type and it starts to read the  
> file. Altough I never see it pluggin faad decoder element. Which  
> version of gstreamer and gst-plugins-bad do you have?
> 
> Stefan
> 

Stefan,

You are a godsend. If you look to the beginning of this thread, I listed 
the gstreamer packages I had installed. Of course, now, I note the 
glaring omission of gstreamer-plugins-bad. Installation of 
gstreamer-plugins-bad-0.10.3-3 gets us moving forward! Amazing how 
simple these things always seem once the solution is revealed by a 
wizard like yourself.


However, all is not yet well. The pipleine refuses to preroll, and 
hangs. I went back to your debuggging instructions, and tried the following:

GST_DEBUG="*:2" gst-launch-0.10 filesrc location="song.m4a" ! decodebin 
! fakesink


This responded with:

0:00:00.218249000 32501 0x918ba08 WARN              GST_PADS 
gstpad.c:674:gst_pad_set_active: Failed to activate pad '':sink
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
0:00:00.240683000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type alac
0:00:00.241213000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type ?day
0:00:00.241550000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type mean
0:00:00.241833000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type name
0:00:00.242026000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type mean
0:00:00.242194000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type name
0:00:00.242420000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type alac
0:00:00.242613000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type ?day
0:00:00.242784000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type mean
0:00:00.243332000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type name
0:00:00.243713000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type mean
0:00:00.243999000 32501 0x91a6dc8 WARN               qtdemux 
qtdemux.c:2403:qtdemux_type_get: unknown QuickTime node type name
Caught interrupt -- handling interrupt.
Interrupt: Setting pipeline to PAUSED ...
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
FREEING pipeline ...


Does this have something to do with not being able to handle ALAC files? 
Clearly, m4a decoding is not working here. Once again, I attached a log 
file that was piped from the above command, but with debugging set to 
level 4, for review (errors begin around line 7811). I really appreciate 
your help!

Steven
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