C
c d saunter
Hi All,
I'm trying to access individual video frames of an AVI file from within
Python 2.4 or 2.5 under Windows XP.
I have found this example code here for that does exactly what I want,
using the windows avifile.dll but I am unable to find the AVIFile.h
header...
http://mail.python.org/pipermail/image-sig/2002-February/001748.html
An alternative is to call into avifile.dll dynamically using ctypes,
however under both Python 2.4 and 2.5 the following error happens:
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
windll.AVIFile
File "C:\Python25\lib\ctypes\__init__.py", line 415, in __getattr__
dll = self._dlltype(name)
File "C:\Python25\lib\ctypes\__init__.py", line 340, in __init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Error 193] %1 is not a valid Win32 application
or
WinDLL('c:/windows/system/AVIFILE.DLL') # same for .../system32/AVI...
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
windll.AVIFile
File "C:\Python25\lib\ctypes\__init__.py", line 415, in __getattr__
dll = self._dlltype(name)
File "C:\Python25\lib\ctypes\__init__.py", line 340, in __init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Error 193] %1 is not a valid Win32 application
This suggests that the dll is corrupt? However if I download
and run the exe's from this example of a VB program calling
the DLL, they work:
http://www.shrinkwrapvb.com/avihelp/avihelp.htm
I'm open to suggestions about the specific problems above
or other ways of getting at the frames. I've tried pymedia
but it also has issues.
Regards
Chris Saunter
I'm trying to access individual video frames of an AVI file from within
Python 2.4 or 2.5 under Windows XP.
I have found this example code here for that does exactly what I want,
using the windows avifile.dll but I am unable to find the AVIFile.h
header...
http://mail.python.org/pipermail/image-sig/2002-February/001748.html
An alternative is to call into avifile.dll dynamically using ctypes,
however under both Python 2.4 and 2.5 the following error happens:
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
windll.AVIFile
File "C:\Python25\lib\ctypes\__init__.py", line 415, in __getattr__
dll = self._dlltype(name)
File "C:\Python25\lib\ctypes\__init__.py", line 340, in __init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Error 193] %1 is not a valid Win32 application
or
WinDLL('c:/windows/system/AVIFILE.DLL') # same for .../system32/AVI...
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
windll.AVIFile
File "C:\Python25\lib\ctypes\__init__.py", line 415, in __getattr__
dll = self._dlltype(name)
File "C:\Python25\lib\ctypes\__init__.py", line 340, in __init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Error 193] %1 is not a valid Win32 application
This suggests that the dll is corrupt? However if I download
and run the exe's from this example of a VB program calling
the DLL, they work:
http://www.shrinkwrapvb.com/avihelp/avihelp.htm
I'm open to suggestions about the specific problems above
or other ways of getting at the frames. I've tried pymedia
but it also has issues.
Regards
Chris Saunter