libmix: port WMV related patch


original patch:
51112:libstagefright: Fix an issue that thumbnail for WMV file can not be generated
42039: libstagefright: Ignore seek in case of no index object within asf file
30078:libstagefright: Porting patches from R2 to R3
Signed-off-by: ywan171 <>

Change-Id: I13ccf6d9c4194bf74dc6f708a9a5a18f83e8d4bd
Reviewed-by: Feng, Wei <>
Reviewed-by: Zhang, Xiaolin <>
Tested-by: Zhang, Xiaolin <>
7 files changed