MemoryRenderSandbox class final

An in-memory RenderSandbox: every file lives in a map of bytes.

Used on the web, where there is no file system — the captured frames, the manifest, the materialized encoder inputs, and the encoded output are all held as bytes and handed to ffmpeg.wasm's virtual file system. Pure Dart, so it also runs in unit tests on the VM.

Implemented types

• RenderSandbox

Constructors

MemoryRenderSandbox()

Creates an empty in-memory sandbox.

Properties

directoryPath → String?

The real directory path a process-based encoder runs in, or null for an in-memory sandbox (a process encoder is never selected there).

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

names → Iterable<String>

The names currently held, in insertion order (for tests and inspection).

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

create() → Future<void>

Prepares the sandbox for writing (creates the directory for a file-backed sandbox; a no-op in memory).

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

openFrames(String name) → CaptureSink

Opens name for appending raw frame bytes.

override

readBytes(String name) → Future<Uint8List>

Reads name back as bytes.

override

toString() → String

A string representation of this object.

inherited

writeBytes(String name, Uint8List bytes) → Future<void>

Writes bytes to name (a materialized encoder input, or an output).

override

writeText(String name, String content) → Future<void>

Writes content to name as UTF-8 text (the manifest).

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited