The mpeg2 codec (mpeg2v12 from MPEG2 SSG http://www.mpeg.org/MPEG/MSSG/#source used to 
work fine on cygwin 1.5.5 .
But when I upgrade to cygwin1.dll 1.5.9.1, the program always report something like 
"zero file size".

After spending a lot of time tracing the source, I found that it goes wrong when it 
rewind the video bitstream the 3rd time in
main(). If I fix the rewind problem, things go wrong in other part of the program.

Since it works well in 1.5.5, I wonder there's something wrong with cygwin kernel. 
Could anybody tell me why or how to fix the
problem on newer kernels?


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