In filters/reframe_latm.c in GPAC 1.0.1 there is a Null Pointer Dereference, when gf_filter_pck_get_data is called. The first arg pck may be null with a crafted mp4 file,which results in a crash.
https://github.com/gpac/gpac/issues/1728
https://github.com/gpac/gpac/commit/b2db2f99b4c30f96e17b9a14537c776da6cb5dca