/**
 * Page header
 * Ref: https://www.xiph.org/ogg/doc/framing.html#page_header
 */ export interface IPageHeader { /**
     * capture_pattern
     * A header begins with a capture pattern that simplifies identifying pages;
     * once the decoder has found the capture pattern it can do a more intensive job of verifying that it has in fact found a page boundary (as opposed to an inadvertent coincidence in the byte stream).
     */ capturePattern : string ; /**
     * stream_structure_version
     */ version : number ; /**
     * header_type_flag
     */ headerType : { /**
         * True: continued packet;
         * False: fresh packet
         */ continued : boolean ; /**
         * True: first page of logical bitstream (bos)
         * False: not first page of logical bitstream
         */ firstPage : boolean ; /**
         * True: last page of logical bitstream (eos)
         * False: not last page of logical bitstream
         */ lastPage : boolean ; } ; /**
     * The total samples encoded after including all packets finished on this page
     * The position specified in the frame header of the last page tells how long the data coded by the bitstream is.
     */ absoluteGranulePosition : number ; streamSerialNumber : number ; pageSequenceNo : number ; pageChecksum : number ; /**
     * The number of segment entries to appear in the segment table.
     * The maximum number of 255 segments (255 bytes each) sets the maximum possible physical page size at 65307 bytes or
     * just under 64kB (thus we know that a header corrupted so as destroy sizing/alignment information will not cause a
     * runaway bitstream. We'll read in the page according to the corrupted size information that's guaranteed to be a
     * reasonable size regardless, notice the checksum mismatch, drop sync and then look for recapture).
     */ page_segments : number ; } export interface ISegmentTable { totalPageSize : number ; } export interface IPageConsumer { param { IPageHeader } header param { Buffer } pageData parsePage ( header , pageData ) ; param header calculateDuration ( header ) ; /**
     * Force to parse pending segments
     */ flush ( ) ; }