stbl_AddShadow   3318 include/gpac/internal/isomedia_dev.h GF_Err stbl_AddShadow(GF_ShadowSyncBox *stsh, u32 sampleNumber, u32 shadowNumber);
stbl_AddShadow    844 src/isomedia/media.c 	return stbl_AddShadow(mdia->information->sampleTable->ShadowSync, sampleNumber, syncShadowNumber);