Problems compiling / building a PyS60 module

[AltoRetrato]

Hi all!

Does anyone know how can I build / compile a Python module for Symbian / S60?

I tried to build the camera module, but I'm having problems. Here's what I'm using:

- Symbian 3 SDK 0.9
- Open C/C++ Plug-in
- Python 2.5.4
- Windows XP SP3

Following the directions in README_BUILD_INSTRUCTIONS.txt, I did this:

subst t: c:\Nokia\devices\Nokia_Symbian3_SDK_v0.9
rem installed PyS60 source in t:\pys60_src
rem cd t:\pys60_src
path=C:\Python25;%PATH%
set EPOCROOT=\
setup.py configure
setup.py build --device ext\amaretto\camera\group

The last line above produces this error:

T:\pys60_src>setup.py build --device ext\amaretto\camera\group
Entering "T:\pys60_src\ext\amaretto\camera\group"
Running "abld -keepgoing reallyclean armv5"
-  abld -keepgoing reallyclean armv5
 ** This project does not support platform, build or  program "ARMV5"

Entering "T:\pys60_src\ext\amaretto\camera\group"
Running "bldmake clean"
-  bldmake clean
Entering "T:\pys60_src\ext\amaretto\camera\group"
Running "bldmake bldfiles"
-  bldmake bldfiles
Entering "T:\pys60_src\ext\amaretto\camera\group"
Running "abld build armv5 urel"
-  abld build armv5 urel
 ** This project does not support platform, build or  program "ARMV5"

Any idea of how to solve this? Does this mean I can't use Symbian 3 SDK? Should I download & install S60 SDK 5.0?

[AltoRetrato]

Updates:

The same problem happens with S60 SDK 5.0... but if I configure it with "setup.py configure -s 32gcce", it compiles!

BTW, what's the difference between the possible options, and why is 50armv5 the default?

T:\pys60_src>setup.py configure -help
Usage: setup.py [options]

Options:
[...]
  --compiler-flags=COMPILER_FLAGS
                        Compiler flags to be used while building the python
                        interpreter core [default: ]
[...]
  -s SDK, --sdk=SDK     Specify the version of sdk to use, choose any version
                        from 30gcce,50armv5,32gcce,30armv5,32[default:
                        50armv5]

Another thing I noticed is that I have to build the whole package (setup.py build) to get some things configured (like the t:\epoc32\include\python25 directory). But I'm receiving many warnings like these:

 -- perl -S makmake.pl  -D \pys60_src\EXT\AMARETTO\GRAPHICS\GROUP\_GRAPHICS GCCE
 **
 ** MMPFILE "\pys60_src\EXT\AMARETTO\GRAPHICS\GROUP\_GRAPHICS.MMP"
 ** WARNING: Frozen .def file \pys60_src\EXT\AMARETTO\GRAPHICS\eabi\kf__graphics.def not found - project not frozen
** WARNING: Frozen .def file \pys60_src\EXT\AMARETTO\SOCKET\eabi\kf_e32socket.def not found - project not frozen

[...]

 -- make -s  -r -f "\EPOC32\BUILD\pys60_src\newcore\symbian\group\E32SOCKET\GCCE\E32SOCKET.GCCE" LIBRARY
 -- WARNING: Not attempting to create any import libraries.
 -- When exports are frozen in "\pys60_src\EXT\AMARETTO\SOCKET\eabi\kf_e32socket.def", regenerate Makefile.

I wonder if the .def files above (bold by me, of course) are actually the def files below, which exist:

• T:\pys60_src\ext\amaretto\socket\group\eabi\251_e32socket.def
• T:\pys60_src\ext\amaretto\graphics\group\eabi\_graphics.def

Probably because of the problem above, at the end I'm getting this error:

\EPOC32\BUILD\pys60_src\newcore\symbian\group\PYTHON25\GCCE\urel\pythonrun.o: In function `Py_InitializeEx':
pythonrun.c:(.text+0x80): undefined reference to `set_fmode'
make[1]: *** [\epoc32\release\gcce\urel\python25.dll] Error 1
make: *** [TARGETPYTHON25] Error 2
  make -r  -f "\EPOC32\BUILD\pys60_src\newcore\symbian\group\GCCE.make" FINAL CFG=UREL VERBOSE=-s

Any ideas how can I get past this now?

[AltoRetrato]

I got it to compile, but only after changing the _camera.mpp (my additions are highlighted):

#if defined(ARMCC)
deffile eabi\_camera
#elif defined(GCCE)
deffile eabi\_camera
#elif defined(WINSCW)
deffile bwins\_camera
#endif

EPOCALLOWDLLDATA

The last statement (EPOCALLOWDLLDATA) is to solve the error below:

elf2e32 : Error: E1028: ELF File \EPOC32\BUILD\pys60src\ext\amaretto\camera\group\_CAMERA\GCCE\urel\kf__camera.pyd contains uninitialized writable data.

But I'm still not sure if I had to do this in the first place, or if the resulting files will be compatible with the current distribution.

Any comments?

[AltoRetrato]

Dear diary,

It's lonely the life of a PyS60 hacker around the Forum Nokia. You get no love at all... and hackers have feelings, too - but, of course, you know that.

You also know that I've been trying to build that camera module thingy, without much success. Well, I advanced a bit more: I finally got it compiled, with:

cd ext\amaretto\camera\group
bldmake bldfiles
abld build gcce urel
abld freeze gcce
abld build gcce urel

Then I created a "camera2" folder in the module repository with the required files (copied from the camera folder, then renamed and edited), and I added my newly compiled file:

C:
mkdir  "C:\Program Files\PythonForS60\module-repo\dev-modules\camera2"
copy T:\epoc32\release\gcce\urel\kf__camera.pyd "C:\Program Files\PythonForS60\module-repo\dev-modules\camera2\kf__camera2.pyd"

Finally, I created a small test program, packed it with ensymble and tried it on my device. The result? The error below, just as the newly compiled file is imported:

Traceback (most recent call last):
  File "launcher.py", line 43, in <module>
    execfile('default.py', default_namespace)
  File "default.py", line 11, in <module>
    import camera2
  File "c:\resource\python25\python25.zip\site.py", line 86, in platsec_import    
    return _original_import(name, globals, locals, fromlist, level)  
  File "i:camera_tests_174851\camera2.py", line 21, in <module>  
  File "c:\resource\python25\python25.zip\site.py", line 104, in platsec_import    
    return imp.load_dynamic(name, module   '.pyd')
SystemError: dynamic module not initialized properly

OK, now I have this SystemError watchamacalit... if it's not one thing, it's another! But I'm worried that this might be caused by a binary incompatibility, meaning I would have to build not just the module, but the whole Python distro!

Dear diary, I think I will post my findings on Forum Nokia anyway, just in case another suffering developer looking for the same answers might find, if not a solution, another kindred spirit and, with that, feel a bit less lonely in this huge Symbian development world.

XOXO

[rcu]

Hi, AltoRetrato,
I followed with interest your log.
Could you please send me a ZIP of the source code?
I experienced a "SystemError: dynamic module not initialized properly" with my own PyS60 2.0 module and if I remember correctly the solution was to uninstall all other .pyd of my extension (if installed as SIS uninstall them).
Cheers.

[AltoRetrato]

Hi rcu!

Thanks for replying. Martin Wibbels graciously lent me a hand and I found out my problem: I haven't changed all required .cpp and .py references to "camera" into "camera2". After doing that the new module is working fine!

Now I can finally start trying to make the camera2 module record video in high res!

[AltoRetrato]

That was faster than I imagined (but not quite what I expected)...

I added a couple of functions to the camera2 module:

  video_formats()
  frame_sizes()
  frame_rates()

and got a list of the available video formats:

  YUV420p
  YUV422

resolutions:

  640x480
  352x288
  320x240
  176x144

and frame rates:

  15.0

The code works (yay!) since I captured a short clip at 640 x 480... but unfortunately, it seems I still can't capture at 1280 x 720, 25fps... which means I still have work to do.

[AltoRetrato]

I managed to build the module with the Symbian^3 SDK 0.9 too, but the max. res. is still 640 x 480...

[AltoRetrato]

So close! I got HD video, finally: 1280 x 780 by using H.264 baseline profile 3.1 - but the video is captured at only 15fps (even if I try setting the video frame rate to 25.0 fps)...

EDIT: done! I even captured HD video @ 30fps! I hope to make the source code and binaries available in less than two weeks, if anyone is interested.

[stoval]

So close! I got HD video, finally: 1280 x 780 by using H.264 baseline profile 3.1 - but the video is captured at only 15fps (even if I try setting the video frame rate to 25.0 fps)...

EDIT: done! I even captured HD video @ 30fps! I hope to make the source code and binaries available in less than two weeks, if anyone is interested.

That will be great, thanks for your excellent work!

Stoval

[stoval]

So close! I got HD video, finally: 1280 x 780 by using H.264 baseline profile 3.1 - but the video is captured at only 15fps (even if I try setting the video frame rate to 25.0 fps)...

EDIT: done! I even captured HD video @ 30fps! I hope to make the source code and binaries available in less than two weeks, if anyone is interested.

By the way, I did the test. N8 worked ok with 1280 x 780 @25fps

[robolange]

Hi, I have just begun working on an N8 and have just discovered the limitations of the built-in camera module. I found your posts and was wondering if you had made the camera2 module available to the public yet? I can't wait to actually be able to make use of my HD camera! Thanks.

[AltoRetrato]

Please visit the camera2 thread.