Source code for simple MPEG-2 decoder

I need to collect statistics on a variety of MPEG-2
sequences. I had intended to modify some public
domain decoder to spit out the information I needed,
but when I looked at ffmpeg I was a bit overwhelmed
by the complexity (I'm not a programmer).

Any suggestions on a simple MPEG decoder that
I might modify for my purposes. If I'm stuck I could
probably plough through ffmpeg, but it will take me
a long time to get up to speed on it.

Thanks


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