* commit 'cf53704c55378cc0dcfc16637cdac7d58f0b3107':
AVOptions: make av_set_options_string() forward options to child objects
win32: Use 64-bit fstat/lseek variants for MSVC as well
win32: Make ff_win32_open more robust
Conflicts:
libavformat/os_support.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>