@techreport{lcurley-compressed-mp4-00,
    number =    {draft-lcurley-compressed-mp4-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-lcurley-compressed-mp4/00/},
    author =    {Luke Curley},
    title =     {{Compressed MP4}},
    pagetotal = 12,
    year =      2026,
    month =     mar,
    day =       16,
    abstract =  {Fragmented MP4 (fMP4) is widely used for live streaming, but the ISO Base Media File Format (ISOBMFF) box structure imposes significant per-fragment overhead. Each box header requires 8 bytes (4-byte size + 4-byte type), and payload fields use fixed-width integers (u32/ u64). For low-latency streaming with single-frame fragments, this overhead can exceed the media payload itself. This document defines a compression scheme for ISO BMFF that replaces box headers with compact varint-encoded identifiers and sizes, and defines compressed variants of commonly used boxes with varint payload fields. The scheme reduces per-fragment overhead from \textasciitilde{}100 bytes to \textasciitilde{}20 bytes while preserving the full box hierarchy.},
}