Hi
<br>
<br>I&#39;m new to Gstreamer, trying to find out how it works. As I try to play 
a media file, I consistently get errors. Here&#39;s what I enter in the 
command line:
<br>
<br>gst-launch -v playbin uri=<a class="moz-txt-link-freetext" href="file:///root/test.flv">file:///root/test.flv</a>
<br>
<br>And the corresponding error is like that:
<br>
<br>Setting pipeline to PAUSED ...
<br>/playbin0/decodebin0/typefind.src: caps = video/x-flv
<br>Pipeline is PREROLLING ...
<br>/playbin0/selector_audio_src1: active-pad = &quot;sink0&quot;
<br>/playbin0/selector_video_src0: active-pad = &quot;sink0&quot;
<br>ERROR: from element /playbin0/vbin/videosink: Could not initialize 
supporting library.
<br>Additional debug info:
<br>gstautovideosink.c(234): gst_auto_video_sink_detect (): 
/playbin0/vbin/videosink:
<br>Failed to find a supported video sink
<br>ERROR: pipeline doesn&#39;t want to preroll.
<br>Setting pipeline to NULL ...
<br>/playbin0/decodebin0/ffdemux_flv0.audio_00: caps = NULL
<br>/playbin0/decodebin0/ffdemux_flv0.video_00: caps = NULL
<br>/playbin0/decodebin0/typefind.src: caps = NULL
<br>FREEING pipeline ...
<br>
<br>I get the same error as I test with other AVI or MPEG files - not only 
FLV. My system is:
<br>
<br>- Ubuntu 7.04
<br>- Updated ffmpeg libraries
<br>- Gstreamer-0.10 files (gstreamer-tools, gstreamer0.10-plugins-good, 
gstreamer0.10-plugins-ugly, gstreamer0.10-alsa, gstreamer0.10-ffmpeg, 
gstreamer0.10-tools, gstreamer0.10-plugins-bad, 
libgstreamer-plugins-base0.10-0, libgstreamer0.10-0)
<br>
<br>What am I doing wrong here? Is there a way to trace how and why 
Gstreamer behaves ill and cannot find the codecs it finds?
<br>
<br>Best
<br>Görkem