RE: [Iaxclient-devel] Compiling with MinGW/Cygwin and Win32 Latency

[Uriel C. <ur...@ad...>]

Steve:
Right on!  My next step is to install wxwindows from www.wxwindows.org =
as per your instructions with MinGW.  I think I am going to call it a =
day but either tomorrow or Saturday I will get to it.
I am also going to play with the settings in portaudio and will let the =
list know what worked for me.  I will document the steps to get =
everything up and running on a Windows XP environment so we can put it =
in a README-WIN.txt file.
Thank you for your invaluable support, without you I would have not made =
it this far.

Regards,
Uriel
  -----Original Message-----
  From: Steve Kann [mailto:st...@st...]
  Sent: Thursday, June 12, 2003 9:37 AM
  To: ur...@ad...
  Cc: 'iaxclient devel'
  Subject: RE: [Iaxclient-devel] Compiling with MinGW/Cygwin and Win32 =
Latency


  On Wed, 2003-06-11 at 22:41, Uriel Carrasquilla wrote:=20
    Steve:
    It is now working with the "make" from Cygwin.  I had to download it =
from http://cygwin.com/setup.exe as it is not part of the default =
install.
    I was able to compile with "make clena" followed by "make" under =
iaxclient/simpleclient/testcall.  It works and I tested it and modified =
it to use my own *.  There was quite a bit of noise and quite a bit of =
delay but it is very promissing.=20

  Cool.  I'm glad you got it working.  I guess I installed cygwin a long =
time ago, and I probably did install more than the default install, so =
we should note this in the README with the sources.

  Thanks for sticking in there!

  The latency can be adjusted somewhat by setting an environment =
variable, PA_MIN_LATENCY_MSEC  It defaults to 200ms for Win9x, and 400ms =
for NT.  Try setting it to something smaller, and it might work for you. =
 Some people have tried setting this to 50ms or so, with success, but it =
depends on your system.

  The portaudio people set this by default pretty high on windows, =
because windows has pretty bad real-time support.  It's better, by =
default, on Linux/MacOSX.

  All of this is really in the portaudio library code, so if you're =
looking to change things or research them, look in the portaudio =
directory, and/or the portaudio website and mailing lists -- there's =
lots of info on it there, and I think they're improving things for their =
next release.



    Then I got ambitious and tried the same steps undex =
iaxclient/simpleclient/wx.  I watched in horror the screen go for quite =
a while.  Then it stopped with a message "1 error in wx.o".  I tried to =
redirect the output to file so I could attach it here but only got the =
first few lines of the "Makefile" execution.  Then, when the Cygwin make =
takes over, it all went back to the STD output, my screen.
    Since I made it this far, I am now more committed than ever.
    Did I miss a step to compile the "GUI" version?=20

  And if you thought getting the environment setup for compiling =
"testcall" was complicated, wait till you try compiling with wxwindows =
:)  (OK, it's not _too_ bad, really.  Several people besides me have =
done this already).

  Basically, what you need to do is get wxwindows from wxwindows.org, =
compile that with mingw (when you do this, make sure you compile it to =
make _static libraries_, not DLLs), and then if you have the WXWIN =
environment variable set properly, the build of wx will succeed.

  The errors you got are all probably because you don't have wxwin =
installed/compiled, so it can't find the wxwin headers, and then the =
compiler can't make sense out of the rest of the code.

  -SteveK



    Regards,
    Uriel=20