Canonical Schema streaming_omni_v0.3.1
Every row contains schema_version, a unique id, config/split/source lineage, modalities, duration, a non-empty timeline, evidence, quality metadata, and metadata.media_access.
Every timeline chunk has a deterministic chunk_0000-style ID, monotonic t_start < t_end, streaming ASR/OCR/audio/visual events, control state, and optional target deltas. Chunk times stay inside duration_sec.
metadata.media_access declares exactly one public strategy: reconstruct with a stable upstream URL and manifest entry, or generated with a deterministic recipe. The internal package rewrites it to included with a package-relative path.
ProactiveAVInteraction
interaction_policy includes should_speak, speak_timing, trigger_type, reason_for_silence, resolvable evidence_chunk_ids, optional latency, priority, and interruption permission. A genuinely_joint label is used only when both independent audio and visual evidence are materially required.
OCRScreenGrounding
ocr_grounding includes required, non-empty text_instances, normalized [x1,y1,x2,y2] boxes, frame timestamps, confidence, source, resolvable target_instance_ids, and temporal state fields. Generated examples use source=generator_ground_truth; no generator truth is presented as OCR-model inference.
Model mode and quality
metadata.model_mode records backend modes. quality.status must be pass for release rows. WhisperX timestamps are segment-level.