v4l2src & GstGLUpload (was: White frames with v4l2 source & GstGLUploadElement)

[Gottfried Haider]

Hello all,

I've managed to narrow down the issue I described yesterday - so posting
again, in the hope that someone has an idea:

Running testegl.c from gst-omx [1] with the playbin uri set to
v4l2:///dev/video0 only renders a black cube.

Is this expected? I am running GStreamer 1.8.1. Running testegl.c with a
video file works just fine, as does playing back /dev/video0 via
gst-launch-1.0 - which does include a GLUpload & GLImageSink for me as
well, btw.


Changes to testegl.c that I have attempted:
* using GST_PLAY_FLAG_VIDEO instead GST_PLAY_FLAG_NATIVE_VIDEO
* adding format=RGBA to the capsfilter
* removing the max-lateness property from the fakesink caps


Here is the resulting pipeline:
http://sukzessiv.net/~gohai/gstreamer/testegl-v4l.png

Compared to "gst-launch-1.0 playbin uri=v4l2:///dev/video0":
http://sukzessiv.net/~gohai/gstreamer/gst-launch-v4l.png


Thanks in advance
Gottfried

[1]
https://cgit.freedesktop.org/gstreamer/gst-omx/tree/examples/egl/testegl.c
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