Enum Detail 

#[non_exhaustive]
pub enum Detail {
    #[non_exhaustive]
    Ts {
        stride: u16,
        phase: u16,
    },
    #[non_exhaustive]
    Isobmff {
        major_brand: Option<[u8; 4]>,
        boxes_walked: u8,
        layout: IsobmffLayout,
    },
    #[non_exhaustive]
    Ebml {
        doc_type: DocType,
    },
    #[non_exhaustive]
    Flv {
        has_audio: bool,
        has_video: bool,
        data_offset: u32,
    },
    #[non_exhaustive]
    Mxf {
        partition_kind: PartitionKind,
    },
    #[non_exhaustive]
    MpegPs {
        structurally_valid: bool,
    },
    None,
}

What a prober learned on the way to its conclusion — the difference between “it is TS” and “it is TS, 192-byte stride, first sync at offset 4”.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

#[non_exhaustive]

Ts

MPEG-2 TS lattice: packet stride (188/192/204/208) and the byte offset of the first sync (phase), so a demuxer need not re-derive them.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

stride: u16

Byte distance between consecutive sync bytes (a packet length).

phase: u16

Byte offset of the first sync byte in the probed region.

#[non_exhaustive]

Isobmff

ISOBMFF: the ftyp major brand (if seen) and how many top-level boxes chained cleanly.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

major_brand: Option<[u8; 4]>

The 4-character code from the ftyp major brand, if one was read.

boxes_walked: u8

Number of top-level boxes that chained cleanly into the buffer.

layout: IsobmffLayout

Which structural layout the top-level walk observed — the discriminator between a fragmented and a progressive file.

#[non_exhaustive]

Ebml

Matroska/WebM: the EBML header’s DocType string.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

doc_type: DocType

The EBML DocType.

#[non_exhaustive]

Flv

FLV: the header’s TypeFlags (which tag types are present) and the DataOffset header size.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

has_audio: bool

TypeFlags bit 0 — audio tags present.

has_video: bool

TypeFlags bit 2 — video tags present.

data_offset: u32

The DataOffset field (bytes 5..9), the header size.

#[non_exhaustive]

Mxf

MXF: the decoded Partition Pack kind (byte 14 of the UL).

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

partition_kind: PartitionKind

Which Partition Pack this is — see PartitionKind.

#[non_exhaustive]

MpegPs

MPEG-PS: whether the pack header’s SCR/mux-rate marker bits validated.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

structurally_valid: bool

true when the SCR '01' prefix, the four SCR marker bits and the two program_mux_rate marker bits all validated (STRUCTURAL); false when only the pack start code matched (HEURISTIC).

None

No format-specific detail to report.

Implementations

impl Detail

pub fn name(&self) -> &'static str

The human-readable name of the detail variant.

pub fn major_brand_str(&self) -> Option<&str>

The ftyp/styp major brand as a string, when the identifying file carried one (an ISOBMFF result). The brand is a registered 4-character code, so this is the ergonomic view of the raw [u8; 4] in Detail::Isobmff.

Returns None when the detail is not Isobmff, when no brand was observed, or when the 4 bytes are not valid UTF-8.

Trait Implementations

impl Clone for Detail

fn clone(&self) -> Detail

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Detail

impl Debug for Detail

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Detail

A lossless Display for Detail: every data-bearing variant renders its fields, so Detail::Ts { stride, phase } is not collapsed to just "Ts". Display delegates to Detail::name (the #204 convention) for the label, then appends the field data the variant actually carries.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Detail

impl PartialEq for Detail

fn eq(&self, other: &Detail) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Detail