Subject: Unable to run ffmpeg.exe (Access Violation error) - msg#00191

Hi,

I am using ffmpeg version 0.4.9-pre1, build 4718 (libavcodec 4718, libavformat
4616) in the Windows system using MSYS. I could successfully compile this and
could generate the ffmpeg.exe. But I am not able to run this exe. Everytime, I
try to run this exe, there is an "Access violation - 0xC0000005" crash. I am
not able to determine from the debugger where this is happening (I used gdb and
tried to do a bt, but there is no stack available after this crash). All I am
able to see from the VisualC++ debugger is that this involves pointer
assignment, but not able to see which pointer and where.

Is this a known issue? Has anyone else encountered this? Could this be because
I am trying to compile and run FFMPEG in windows using Msys? I do the following
steps to compile:
1) ./configure (did not change anything in the configure file)
2) make
Did not do a make install.
Then I try to run the ffmpeg.exe from the ffmpeg directory using the following
command:
ffmpeg -i <input file name> <output filename>
That is when the crash happens.

Stack during crash (from vc++ debugger)
FFMPEG! 005bba63()
FFMPEG! 005b1472()
FFMPEG! 0046bc6f()
FFMPEG! 00470926()
FFMPEG! 00446905()
FFMPEG! 00469587()
FFMPEG! 00446e7f()
FFMPEG! 004024f8()
FFMPEG! 00408b90()
FFMPEG! 004011e7()
FFMPEG! 00401238()
KERNEL32! 7c816d4f()

Can someone please tell me why this is happening?

Thanks in advance,
Usha


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