making quicktime movie

Linux VisionEgg

quicktime.py

Hi all,

I'm having trouble playing quicktime files in VisionEgg. Playback is
choppy (even though the machine is quite capable (16 GB of RAM and a
solid-state disk), and the video is not rendering correctly -- the
image is skewed.

Details:
Windows 7, 64-bit
Python 2.7.3 (32-bit version)
Pygame 1.9.2a0 (32-bit)
visionegg 1.2.1
Quicktime 7.7.2

Example file: https://www.dropbox.com/s/kvvkxxodo8ox8q0/test.mp4

Has anybody seen this?

Thanks,
Eamon
======================================
The Vision Egg mailing list
Archives: http://www.freelists.org/archives/visionegg
Website: http://www.visionegg.org/mailinglist.html

Re: Ubuntu

It is certainly possible to set a 2nd display to > 75Hz in Ubuntu 12.04 
-- we're doing that as standard practice in my lab. Try replacing your 
Screen1 section in /etc/X11/xorg.conf with the following and reboot.

Section "Screen"
     Identifier     "Screen1"
     Device         "Device1"
     Monitor        "Monitor1"
     DefaultDepth    24
     Option         "TwinView" "0"
     Option         "metamodes" "CRT: 1024x768_120 +0+0"
     SubSection     "Display"
         Depth       24
     EndSubSection
EndSection

On 07/13/2012 02:05 PM, Yanqiong Zhou wrote:
> Thanks Andrew,
>
> The second issue should be resolved as you suggestion.
> I tried the nvidia-settings and xrandr command, both of them failed.
> I can change the resolution of both monitors and refresh rate of primary monitor, but not the refresh rate
of second monitor.
> It seems that other people have similar issue caused by display card driver.
> I could not find a suitable driver for my display card in Ubuntu 12.04.
> I probably need go back to Ubuntu 11.
>
> Warm Regards,
>
> Yan-Qiong
>
>
>
> On Fri, Jul 13, 2012 at 5:38 PM, Andrew Straw
<andrew.straw@...<mailto:andrew.straw@...>> wrote:
> Dear Yan-Qiong,
>
> The "nvidia-settings" program should let you adjust the frame rate of your display. See the attached
image. I had to also select my monitor resolution to allow me to set this.
>
> For issue #2, I think this is the same problem as described here: SDL 1.2 meets Gnome
3<http://frozenbyte.com/board/viewtopic.php?f=17&t=4229>. My suggestion is not to open VE
programs in fullscreen mode but rather use a window the size of the display and set the "No frame around
window" option.
>
> Best regards,
> Andrew
>
>
> On 07/12/2012 12:59 PM, Yanqiong Zhou wrote:
>
> Hi Andrew,
>
> Sorry to trouble you.
> I'm Yanqiong, working with Angelique in Bruno's lab.
> I have two stupid questions about running visionegg on the linux system:
> (1) I can't set up the second monitor (LED panels) to a refresh rate higher than 75HZ in Ubuntu12.04, using
NVIDIA Geforce 9600GT. I tried nouveau, NVIDIA 295.49 driver and higher NVIDIA driver... ...
> Do you have any suggestion about the version of Ubuntu and NVIDIA driver that can allow me to set up the
second monitor to a high refresh rate?
>
> (2) When I using vision egg to display visual stimulus on the second monitor in Ubuntu, it showed
"visionegg" on the top-left corner. How can I only show the visual stimulus?
>
> Many thanks for your consideration.
>
> Best Regards,
>
> Yan-Qiong
>
>
>
>
>
> --
> Andrew D. Straw, Ph.D.
> Research Institute of Molecular Pathology (IMP)
> Vienna, Austria
> http://strawlab.org/
>
>
>

--

-- 
Andrew D. Straw, Ph.D.
Research Institute of Molecular Pathology (IMP)
Vienna, Austria
http://strawlab.org/

======================================
The Vision Egg mailing list
Archives: http://www.freelists.org/archives/visionegg
Website: http://www.visionegg.org/mailinglist.html

Re: Ubuntu

Re: SinGrating2D function

SinGrating2D function

specifying screen to run visionegg

VisionEgg Error: Index out of bounds?

EEG triggers

Dear Andrew

Im was wondering how I can use VisionEgg to send triggers to 'Neuroscan' (EEG machine - though parallel
port). Going by your suggestion in previous posts (from 2003!) I tried importing raw_lpt_module
from VisionEgg.DaqLPT but i get a 'module doesn't exist' error. Has this been changed/updated in
Vision Egg 1.2.1? I have installed all the dependencies listed on the vision egg website - I'm using python
version 2.6.7 on a Mac OS X 10.7.2. 

looking forward to your response.    
Thanks
Tara
======================================
The Vision Egg mailing list
Archives: http://www.freelists.org/archives/visionegg
Website: http://www.visionegg.org/mailinglist.html

Recording frame times

Hi,

I'd like to save the frame times during my code. Would anyone be so kind as to show me the lines I should add to
the grating.py demo code (below) to make this happen? I'd be very grateful. 

Apologies for such an obvious question, it remains unclear to me after checking the archives and
documentation, no doubt because of my lack of Python.

Many thanks,

Kit

****************************

Kit Longden
The Krapp Lab: Insect vision, sensory
integration, motor control and robotics.
Contact: kit@..., +44 20759 40717 
http://www3.imperial.ac.uk/people/c.longden <http://www3.imperial.ac.uk/people/c.longden> 
Address: Dr Kit Longden, Department of Bioengineering,
Imperial College London, South Kensington campus, London, SW7 2AZ, U.K.

****************************

#!/usr/bin/env python
"""Sinusoidal grating calculated in realtime."""

############################
#  Import various modules  #
############################

import VisionEgg
VisionEgg.start_default_logging(); VisionEgg.watch_exceptions()

from VisionEgg.Core import *
from VisionEgg.FlowControl import Presentation
from VisionEgg.Gratings import *

#####################################
#  Initialize OpenGL window/screen  #
#####################################

screen = get_default_screen()

######################################
#  Create sinusoidal grating object  #
######################################

stimulus = SinGrating2D(position         = ( screen.size[0]/2.0, screen.size[1]/2.0 ),
                        anchor           = 'center',
                        size             = ( 300.0 , 300.0 ),
                        spatial_freq     = 10.0 / screen.size[0], # units of cycles/pixel
                        temporal_freq_hz = 1.0,
                        orientation      = 45.0 )

###############################################################
#  Create viewport - intermediary between stimuli and screen  #
###############################################################

viewport = Viewport( screen=screen, stimuli=[stimulus] )

########################################
#  Create presentation object and go!  #
########################################

p = Presentation(go_duration=(5.0,'seconds'),viewports=[viewport])
p.go()======================================
The Vision Egg mailing list
Archives: http://www.freelists.org/archives/visionegg
Website: http://www.visionegg.org/mailinglist.html