gf_dash_group_set_quality_degradation_hint 497 include/gpac/dash.h GF_Err gf_dash_group_set_quality_degradation_hint(GF_DashClient *dash, u32 idx, u32 quality_degradation_hint); gf_dash_group_set_quality_degradation_hint 1308 modules/mpd_in/mpd_in.c gf_dash_group_set_quality_degradation_hint(mpdin->dash, idx, com->switch_quality.quality_degradation);