[gstreamer-bugs] [Bug 551580] New: Internal GStreamer error: negotiation problem

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | don't know | Ver: 0.10.x
           Summary: Internal GStreamer error: negotiation problem
           Product: GStreamer
           Version: 0.10.x
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: silkensedai at online.fr
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Hi,

I use gstreamer to recod my webcam to some OGG/Vorbis+Theora video file, and
then, i can't read it back using gstreamer.

To create the file i use:

gst-launch-0.10 v4l2src ! video/x-raw-yuv,width=640,height=480 ! tee name=img !
queue ! xvimagesink img. ! ffmpegcolorspace ! queue ! videorate !
video/x-raw-rgb,rate=15/1 ! ffmpegcolorspace ! theoraenc ! oggmux name=mux !
filesink location=foo.ogg alsasrc !
audio/x-raw-int,channels=1,rate=22025,depth=16 ! queue ! audioconvert !
vorbisenc ! mux.

(you can replace v4l2src by videotestsrc, the bug still happens)

Then, to convert to MPEG2, i would like to use the following command line:

gst-launch-0.10 filesrc location=foo.ogg ! decodebin name=demux demux. ! queue
! ffmpegcolorspace ! ffenc_mpeg2video ! video/mpeg ! queue ! mux. demux. !
queue ! audioconvert ! lame ! audio/mpeg ! queue ! mux. ffmux_mpeg name=mux !
filesink location=foo.mpeg

But then:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /pipeline0/mux: Internal GStreamer error: negotiation
problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstffmpegmux.c(381): gst_ffmpegmux_collected (): /pipeline0/mux:
no caps set on stream 1 (audio)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
FREEING pipeline ...

Ideally, GStreamer should be able to read the files it created :)

I use the packages compiled for ArchLinux, the package versions are:

extra/gstreamer0.10 0.10.20-1 
extra/gstreamer0.10-bad 0.10.7-1 
extra/gstreamer0.10-bad-plugins 0.10.7-3 (gstreamer0.10-plugins)
extra/gstreamer0.10-base 0.10.20-1 
extra/gstreamer0.10-base-plugins 0.10.20-1 (gstreamer0.10-plugins)
extra/gstreamer0.10-ffmpeg 0.10.4-1 (gstreamer0.10-plugins)
extra/gstreamer0.10-good 0.10.8-1 
extra/gstreamer0.10-good-plugins 0.10.8-4 (gstreamer0.10-plugins)
extra/gstreamer0.10-python 0.10.12-1 
extra/gstreamer0.10-ugly 0.10.8-1 
extra/gstreamer0.10-ugly-plugins 0.10.8-1 (gstreamer0.10-plugins)


Thanks for any help.

Mildred


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