typo, also fix warning: asf.c:90: warning: passing argument 2 of 'get_buffer' from incompatible pointer type
typo, also fix warning: asf.c:90: warning: passing argument 2 of 'get_buffer' from incompatible pointer type

git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@11681 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg