Here is a list of all enums with links to the files they belong to:

H

• heif_auxiliary_track_info_type : heif_sequences.h
• heif_encoder_parameter_type : heif_encoding.h
• heif_orientation : heif_encoding.h
• heif_plugin_type : heif_library.h
• heif_region_type : heif_regions.h
• heif_sample_aux_info_presence : heif_sequences.h
• heif_sequence_content_kind : heif_sequences.h
• heif_sequence_gop_structure : heif_sequences.h
• heif_track_reference_type : heif_sequences.h
• heif_track_type_4cc : heif_sequences.h