040000 tree 9266c41b599a911e62080a24dfffbee36453fb2f	aom-sys
040000 tree 03884c83aa10ea3674fe9b7389a753d1526ef79e	dav1d-sys
040000 tree 68648ea5c28fb91cb1e09560af2e59e11f8dbb42	libgav1-sys
040000 tree 0d81ba96a5ad894877433fc875fda86397c11b28	libyuv-sys
040000 tree 9a2c7e0353839c5fb07318b7f3dcfa913d58fd20	ndk-sys