Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

• channel_count : OpusHead
• close : OpusFileCallbacks
• comment_lengths : OpusTags
• comments : OpusTags
• coupled_count : OpusHead
• input_sample_rate : OpusHead
• mapping : OpusHead
• mapping_family : OpusHead
• output_gain : OpusHead
• pre_skip : OpusHead
• read : OpusFileCallbacks
• seek : OpusFileCallbacks
• stream_count : OpusHead
• tell : OpusFileCallbacks
• user_comments : OpusTags
• vendor : OpusTags
• version : OpusHead