Struct SubgroupStreamState 

struct SubgroupStreamState {
    previous_object_id: Option<u64>,
    carries_extension_block: bool,
}

What a subgroup header fixes for every object written after it.

Two facts, and neither is recoverable from an object on its own: the Object ID it has to advance past, and whether the stream’s type puts an extension block on each object. The second has to be remembered rather than guessed: a header type whose Extensions Present column reads Yes puts an Extension Headers Length on every object of the subgroup, so assuming “absent” would write a stream a reader could not follow.

Fields

previous_object_id: Option<u64>

The last Object ID written, or None before the first object.

carries_extension_block: bool

Whether each object writes an Extension Headers Length field.

Trait Implementations

impl Clone for SubgroupStreamState

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SubgroupStreamState

impl Debug for SubgroupStreamState

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

Formats the value using the given formatter.