BlobByteSource class

Reads a TIFF/BigTIFF file from a browser Blob — typically the File from an <input type="file"> or a drop event. The browser reads each requested range from disk on demand, so the file's size doesn't matter.

final document = await TiffDecoder.decodeAsync(BlobByteSource(file));
final rgba = await document.images.first.decodeRegionRgba8Async(region);

Inheritance

• Object
• TiffAsyncByteSource
• BlobByteSource

Constructors

BlobByteSource(Blob blob)

Reads the TIFF file held in blob.

Properties

blob → Blob

The blob being read.

final

hashCode → int

The hash code for this object.

no setter, inherited

length → int

Total size of the file in bytes.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

close() → void

Releases any underlying resources. Called by TiffDocument.close.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

read(int offset, int length) → Future<Uint8List>

Reads exactly length bytes starting at offset. Never called with a range outside 0..this.length, and may be called several times concurrently.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited