Here is a list of all variables with links to the structures/unions they belong to:

enabled : Dav1dFrameHeader
encoder_buffer_delay : Dav1dSequenceHeader::Dav1dSequenceHeaderOperatingParameterInfo
encoder_decoder_buffer_delay_length : Dav1dSequenceHeader
equal_picture_interval : Dav1dSequenceHeader
error_resilient_mode : Dav1dFrameHeader
existing_frame_idx : Dav1dFrameHeader