Enum IsobmffLayout 

#[non_exhaustive]
pub enum IsobmffLayout {
    Fragmented,
    Progressive,
    Unknown,
}

How an ISOBMFF file carries its sample metadata — the discriminator a consumer needs to choose a demuxer.

ISO/IEC 14496-12 allows both shapes and they are demuxed differently: a fragmented file’s samples are described by moof movie fragments (§8.8, the CMAF/fMP4 shape), a progressive file’s by moov sample tables (§8.7). The prober walks the top-level boxes anyway, so it reports what it saw rather than making every consumer re-walk the chain to find out — the same reason Detail::Ts carries the stride and phase it measured.

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.

Fragmented

A moof box was seen: fragmented (CMAF / fMP4 / DASH segment).

Progressive

A moov box was seen and no moof: progressive, with sample tables.

Unknown

Neither was seen within the probed region — e.g. a buffer holding only ftyp and the start of a large mdat. The file is ISOBMFF, but which shape is undetermined from these bytes; a consumer should read further rather than assume.

Implementations

impl IsobmffLayout

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

Stable label.

Trait Implementations

impl Clone for IsobmffLayout

fn clone(&self) -> IsobmffLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IsobmffLayout

impl Debug for IsobmffLayout

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

Formats the value using the given formatter.

impl Display for IsobmffLayout

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

Formats the value using the given formatter.

impl Eq for IsobmffLayout

impl PartialEq for IsobmffLayout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IsobmffLayout