[gstreamer-bugs] [Bug 578500] v4l2src caps

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: 0.10.21

Francois Forest changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |UNCONFIRMED




------- Comment #3 from Francois Forest  2009-04-14 15:02 UTC -------
Following the above recommendation I reformulate the report as follows:

1) the bug appears on version 0.10.21

2) The following pipeline failed in negociating caps while it exists compatible
caps on each element pairs.
$ gst-launch-0.10  v4l2src ! ffmpegcolorspace ! video/x-raw-rgb ! xvimagesink
    ...
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not
negotiate format
Additional debug info:
gstbasesrc.c(2426): gst_base_src_start ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Check your filtered caps, if any

3) Hint: the same pipeline ending with element ximagesink or fakesink in place
of
xvimagesink succeeds.
The same is true if we force fully defined caps between ffmpeg & ximagesink as
follows:
$ gst-launch-0.10 --gst-debug=v4l2src:3 v4l2src ! ffmpegcolorspace !
video/x-raw-rgb,width=320,height=240,bpp=32,depth=24,endianness=4321,red_mask=65280,green_mask=16711680,blue_mask=-16777216
! xvimagesink


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