gstreamer

[Sudarshan Bisht]

Its obvious from the log that you are missing mpeg4 video decoder plugin,
 install that :)  Most probably you would find that in gst-ffmpeg package.


2012/4/16 xiaowen <zhongxiaowenhuman at 163.com>

> Hi:
>     I am compliting the gstremer,when i run "gst-launch -v playbin2
> uri=file:///sdcard/b.mp4",there are some errors.Could you help me ?
>
>
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0: connection-speed = 0
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0: source =
> (GstFileSrc) source
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind.GstPad:src:
> caps = video/quicktime, variant=(string)iso
> Pipeline is PREROLLING ...
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstQTDemux:qtdemux0.GstPad:sink:
> caps = video/quicktime, variant=(string)iso
> Missing element: MPEG-4 Video decoder
> WARNING: from element
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0: No decoder available
> for type 'video/ mpeg, mpegversion=(int)4, parsed=(boolean)true,
> systemstream=(boolean)false'.
> Additional debug info:
> /opt/gstreamer/external/gstreamer_aggregate/gst-plugins-base/gst/playback/gsturidecodebin.c(867):
> unknown_type_cb (): /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0
>
>
> Thank you.
> Bill
>
>
>
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>
>


-- 
Regards,

Sudarshan Bisht
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