web/flutter_gemma_web library

Classes

AudioPromptPart

Audio prompt part with raw audio bytes For Gemma 3n E4B models - supports PCM audio (16kHz, 16-bit, mono)

BlobUrlModelSource

WebStorageMode.cacheApi / WebStorageMode.none path. url is a blob: URL produced by WebCacheService / BlobUrlManager, or an https: URL when caching is disabled.

FlutterGemmaWeb

ImagePromptPart

Image prompt part with data URL

LiteRtLmWebInferenceModel

Web .litertlm inference via the upstream @litert-lm/core early-preview JS API (LiteRT-LM v0.12.0+ on web through WebGPU/WASM).

LiteRtLmWebSession

Session-side accumulator + async iterator pump for @litert-lm/core.

OpfsStreamModelSource

WebStorageMode.streaming + opfs://<filename> path. Carries the WebOPFSService and the OPFS filename so each engine can ask for the form it consumes — MediaPipe wants a ReadableStreamDefaultReader, @litert-lm/core wants the raw ReadableStream.

PromptPart

Base class for prompt parts (text, image, audio)

TextPromptPart

Text prompt part

WebInferenceModel

WebModelManager

Web Model Manager - Modern API Facade Pattern

WebModelSession

WebModelSource

Result of resolving an active web model into a form an engine (MediaPipe LlmInference OR @litert-lm/core Engine) can consume.

WebModelSourceResolver

Resolves the active inference model from WebModelManager into the correct WebModelSource subtype based on ServiceRegistry useStreamingStorage and the resolved path prefix. This is the single piece of code that decides blob-URL vs OPFS-stream — both WebInferenceModel (MediaPipe) and LiteRtLmWebInferenceModel (@litert-lm/core) consume it.