Everything a IStreamEncoder may need beyond the bytes it encodes: the parameters the decoding filter will read, the stream's dictionary and how hard to compress.
public sealed class StreamEncoderContext
ISO 32000-2 §7.3.8.2 (Table 5) and §7.4. A document creates one context per encoder of a stream's chain; a context created with the public constructor stands alone, which is how an encoder is tested or used outside a document. A context belongs to one encode call on one thread.
kind:method, kind:property, kind:ctor. Press Esc to clear.CompressionLevelGets how much an encoder that trades time for size compresses. The default is ; encoders that do not compress ignore it.ParametersGets the parameter dictionary the decoding filter will read, or null when every parameter takes its default.StreamDictionaryGets the dictionary of the stream being encoded, such as an image's Width, Height and ColorSpace.