[Bug 721143] New: H.264 decoder missing from (I think) decodebin

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=721143
  GStreamer | gst-plugins-base | git

           Summary: H.264 decoder missing from (I think) decodebin
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: hage02 at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


from git installed newest versions and for a H.264 streaming camera (Logitec
C920). It complains that it misses a plugin, but I did gst-inspect-1.0 on all
of the element mention below and they all exist.

I did the following:

#: gst-launch-1.0 -v v4l2src device=/dev/video0 !
'video/x-h264,width=800,height=448,framerate=(fraction)30/1' ! h264parse !
decodebin ! fpsdisplaysink fps-update-interval=5000 sync=false

Result:

Setting pipeline to PAUSED ...
libEGL warning: failed to create a pipe screen for i965
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0/GstAutoVideoSink:fps-display-video_sink/GstEglGlesSink:fps-display-video_sink-actual-sink-eglgles:
sync = false
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = "video/x-h264\,\
width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps =
"video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:sink: caps =
"video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps =
"video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps =
"video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink.GstProxyPad:proxypad0:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:sink:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink: caps =
"video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstH264Parse:h264parse1.GstPad:sink:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstH264Parse:h264parse1.GstPad:src:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
Missing element: H.264 decoder
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstCapsFilter:capsfilter1.GstPad:src:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
ERROR: from element /GstPipeline:pipeline0/GstDecodeBin:decodebin0: Your
GStreamer installation is missing a plug-in.
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstCapsFilter:capsfilter1.GstPad:sink:
caps = "video/x-h264\,\ width\=\(int\)800\,\ height\=\(int\)448\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au"
Additional debug info:
gstdecodebin2.c(3908): gst_decode_bin_expose ():
/GstPipeline:pipeline0/GstDecodeBin:decodebin0:
no suitable plugins found
Execution ended after 0:00:00.370118979
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

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