Re: [Discuss-gnuradio] RE: gr-video-sdl not found by usrp_tv_rcv.py example

[Martin Dvh]

address@hidden wrote:
> Hi all, 
> I have sent the question below sometime ago. Can anyone help to resolve the 
> issue?
>  
> Kind Regards
>  
> Stoicho
> 
> ________________________________
> 
> From: Gultchev SP Mr (PG/R - CCSR)
> Sent: Wed 25/04/2007 14:58
> To: address@hidden
> Subject: gr-video-sdl not found by usrp_tv_rcv.py example
> 
> 
> Hi ,
> I am new to the list but as far as I have checked, an answer to my question 
> does not exist. I have installed everything fine (including gr-video-sdl 
> part) on Fedora 4 (and the fm examples work fine) . 
> I have run the test-video (as I have read from some comments) and is o.k. 
> However, when I run the usrp_tv_rcv.py, it comes with an error that the 
> gr-video-sdl is not installed.
> Any suggestions what the problem may be?
This is strange.

Is this the error you get?
FYI: gr-video-sdl is not installed
realtime SDL video output window will not be available

And you don't get this error when you run test_video-sdl.py
(I put the code of test_video-sdl.py at the end of this mail)

Both usrp_tv_rcv.py and test_video-sdl.py use exactly the same code to check 
for the availability of video_sdl.

This is done in these lines:
try:
  from gnuradio import video_sdl
except:
  print "FYI: gr-video-sdl is not installed"
  print "realtime SDL video output window will not be available"

So or both should output nothing, or both should work.

Can you check if video_sdl.py is actually installed and where it is installed.
Mine is located at:
/usr/local/lib/python2.3/site-packages/gnuradio/video_sdl.py

You can use the following to find all instances of video_sdl.py
locate video_sdl.py

or if locate isn't installed/configured
cd /
find -name video_sdl.py

Greetings,
Martin

#!/usr/bin/env python
#
# Copyright 2006 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#

from gnuradio import gr, gr_unittest
try:
  from gnuradio import video_sdl
except:
  print "FYI: gr-video-sdl is not installed"
  print "realtime SDL video output window will not be available"

class qa_video_sdl (gr_unittest.TestCase):

    def setUp (self):
        self.fg = gr.flow_graph ()

    def tearDown (self):
        self.fg = None

    def test_000_nop (self):
        """Just see if we can import the module...
        They may not have video drivers, etc.  Don't try to run anything"""
        pass

if __name__ == '__main__':
    gr_unittest.main ()