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040000 tree 4aa9feedce5f90bee782d07d4c821d669ad1c5ba	audiopolicy
040000 tree 47f2d3e8d9b0e134036c6f9adb5e3c6cc537501c	camera
040000 tree c8dd6d600801286e1c5a59993cb6858b6a1c6b74	medialog
040000 tree c83ceb2f649c29e16e6d33f10e78cf6c5c7640e7	soundtrigger