Files
mediaproc/detect/graph/nodes.py
2026-03-28 08:51:25 -03:00

318 lines
11 KiB
Python

"""
Pipeline node functions — one per stage.
Each node: reads state, runs stage logic, emits transitions, returns output dict.
"""
from __future__ import annotations
import os
from detect import emit
from detect.models import PipelineStats
from detect.profiles import SoccerBroadcastProfile
from detect.state import DetectState
from detect.stages.frame_extractor import extract_frames
from detect.stages.scene_filter import scene_filter
from detect.stages.edge_detector import detect_edge_regions
from detect.stages.yolo_detector import detect_objects
from detect.stages.preprocess import preprocess_regions
from detect.stages.ocr_stage import run_ocr
from detect.stages.brand_resolver import resolve_brands
from detect.stages.vlm_local import escalate_vlm
from detect.stages.vlm_cloud import escalate_cloud
from detect.stages.aggregator import compile_report
from detect.tracing import trace_node, flush as flush_traces
from .events import emit_transition
INFERENCE_URL = os.environ.get("INFERENCE_URL") # None = local mode
NODES = [
"extract_frames",
"filter_scenes",
"detect_edges",
"detect_objects",
"preprocess",
"run_ocr",
"match_brands",
"escalate_vlm",
"escalate_cloud",
"compile_report",
]
def _get_profile(state: DetectState):
name = state.get("profile_name", "soccer_broadcast")
if name == "soccer_broadcast":
profile = SoccerBroadcastProfile()
else:
raise ValueError(f"Unknown profile: {name}")
overrides = state.get("config_overrides")
if overrides:
from detect.checkpoint.replay import OverrideProfile
profile = OverrideProfile(profile, overrides)
return profile
def _emit(state, node, status):
emit_transition(state, node, status, NODES)
# --- Node functions ---
def node_extract_frames(state: DetectState) -> dict:
job_id = state.get("job_id", "")
if job_id and not emit._run_context:
emit.set_run_context(run_id=job_id, parent_job_id=job_id, run_type="initial")
source_asset_id = state.get("source_asset_id")
if source_asset_id and not state.get("session_brands"):
from detect.stages.brand_resolver import build_session_dict
session_brands = build_session_dict(source_asset_id)
state["session_brands"] = session_brands
_emit(state, "extract_frames", "running")
with trace_node(state, "extract_frames") as span:
profile = _get_profile(state)
config = profile.frame_extraction_config()
frames = extract_frames(state["video_path"], config, job_id=state.get("job_id"))
span.set_output({"frames_extracted": len(frames)})
_emit(state, "extract_frames", "done")
return {"frames": frames, "stats": PipelineStats(frames_extracted=len(frames))}
def node_filter_scenes(state: DetectState) -> dict:
_emit(state, "filter_scenes", "running")
with trace_node(state, "filter_scenes") as span:
profile = _get_profile(state)
config = profile.scene_filter_config()
frames = state.get("frames", [])
kept = scene_filter(frames, config, job_id=state.get("job_id"))
span.set_output({"frames_in": len(frames), "frames_kept": len(kept)})
stats = state.get("stats", PipelineStats())
stats.frames_after_scene_filter = len(kept)
_emit(state, "filter_scenes", "done")
return {"filtered_frames": kept, "stats": stats}
def node_detect_edges(state: DetectState) -> dict:
_emit(state, "detect_edges", "running")
with trace_node(state, "detect_edges") as span:
profile = _get_profile(state)
config = profile.region_analysis_config()
frames = state.get("filtered_frames", [])
job_id = state.get("job_id")
regions = detect_edge_regions(
frames, config, inference_url=INFERENCE_URL, job_id=job_id,
)
total = sum(len(r) for r in regions.values())
span.set_output({"frames": len(frames), "edge_regions": total})
stats = state.get("stats", PipelineStats())
stats.cv_regions_detected = total
_emit(state, "detect_edges", "done")
return {"edge_regions_by_frame": regions, "stats": stats}
def node_detect_objects(state: DetectState) -> dict:
_emit(state, "detect_objects", "running")
with trace_node(state, "detect_objects") as span:
profile = _get_profile(state)
config = profile.detection_config()
frames = state.get("filtered_frames", [])
job_id = state.get("job_id")
all_boxes = detect_objects(frames, config, inference_url=INFERENCE_URL, job_id=job_id)
total_regions = sum(len(boxes) for boxes in all_boxes.values())
span.set_output({"frames": len(frames), "regions_detected": total_regions})
stats = state.get("stats", PipelineStats())
stats.regions_detected = total_regions
_emit(state, "detect_objects", "done")
return {"boxes_by_frame": all_boxes, "stats": stats}
def node_preprocess(state: DetectState) -> dict:
_emit(state, "preprocess", "running")
with trace_node(state, "preprocess") as span:
profile = _get_profile(state)
frames = state.get("filtered_frames", [])
boxes = state.get("boxes_by_frame", {})
job_id = state.get("job_id")
overrides = state.get("config_overrides", {})
prep_config = overrides.get("preprocessing", {})
do_contrast = prep_config.get("contrast", True)
do_deskew = prep_config.get("deskew", False)
do_binarize = prep_config.get("binarize", False)
preprocessed = preprocess_regions(
frames, boxes,
do_contrast=do_contrast,
do_deskew=do_deskew,
do_binarize=do_binarize,
inference_url=INFERENCE_URL,
job_id=job_id,
)
span.set_output({"regions_preprocessed": len(preprocessed)})
_emit(state, "preprocess", "done")
return {"preprocessed_crops": preprocessed}
def node_run_ocr(state: DetectState) -> dict:
_emit(state, "run_ocr", "running")
with trace_node(state, "run_ocr") as span:
profile = _get_profile(state)
config = profile.ocr_config()
frames = state.get("filtered_frames", [])
boxes = state.get("boxes_by_frame", {})
job_id = state.get("job_id")
candidates = run_ocr(frames, boxes, config, inference_url=INFERENCE_URL, job_id=job_id)
span.set_output({"regions_in": sum(len(b) for b in boxes.values()), "text_candidates": len(candidates)})
stats = state.get("stats", PipelineStats())
stats.regions_resolved_by_ocr = len(candidates)
_emit(state, "run_ocr", "done")
return {"text_candidates": candidates, "stats": stats}
def node_match_brands(state: DetectState) -> dict:
_emit(state, "match_brands", "running")
with trace_node(state, "match_brands") as span:
profile = _get_profile(state)
resolver_config = profile.resolver_config()
candidates = state.get("text_candidates", [])
session_brands = state.get("session_brands", {})
job_id = state.get("job_id")
source_asset_id = state.get("source_asset_id")
matched, unresolved = resolve_brands(
candidates, resolver_config,
session_brands=session_brands,
source_asset_id=source_asset_id,
content_type=profile.name, job_id=job_id,
)
span.set_output({"matched": len(matched), "unresolved": len(unresolved)})
_emit(state, "match_brands", "done")
return {"detections": matched, "unresolved_candidates": unresolved}
def node_escalate_vlm(state: DetectState) -> dict:
_emit(state, "escalate_vlm", "running")
with trace_node(state, "escalate_vlm") as span:
profile = _get_profile(state)
candidates = state.get("unresolved_candidates", [])
job_id = state.get("job_id")
vlm_matched, still_unresolved = escalate_vlm(
candidates,
vlm_prompt_fn=profile.vlm_prompt,
inference_url=INFERENCE_URL,
content_type=profile.name,
source_asset_id=state.get("source_asset_id"),
job_id=job_id,
)
stats = state.get("stats", PipelineStats())
stats.regions_escalated_to_local_vlm = len(candidates)
span.set_output({"candidates": len(candidates), "matched": len(vlm_matched),
"still_unresolved": len(still_unresolved)})
existing = state.get("detections", [])
vlm_skipped = os.environ.get("SKIP_VLM", "").strip() == "1"
_emit(state, "escalate_vlm", "skipped" if vlm_skipped else "done")
return {
"detections": existing + vlm_matched,
"unresolved_candidates": still_unresolved,
"stats": stats,
}
def node_escalate_cloud(state: DetectState) -> dict:
_emit(state, "escalate_cloud", "running")
with trace_node(state, "escalate_cloud") as span:
profile = _get_profile(state)
candidates = state.get("unresolved_candidates", [])
job_id = state.get("job_id")
stats = state.get("stats", PipelineStats())
cloud_matched = escalate_cloud(
candidates,
vlm_prompt_fn=profile.vlm_prompt,
stats=stats,
content_type=profile.name,
source_asset_id=state.get("source_asset_id"),
job_id=job_id,
)
span.set_output({"candidates": len(candidates), "matched": len(cloud_matched),
"cloud_calls": stats.cloud_llm_calls,
"cost_usd": stats.estimated_cloud_cost_usd})
existing = state.get("detections", [])
cloud_skipped = os.environ.get("SKIP_CLOUD", "").strip() == "1"
_emit(state, "escalate_cloud", "skipped" if cloud_skipped else "done")
return {"detections": existing + cloud_matched, "stats": stats}
def node_compile_report(state: DetectState) -> dict:
_emit(state, "compile_report", "running")
with trace_node(state, "compile_report") as span:
profile = _get_profile(state)
detections = state.get("detections", [])
stats = state.get("stats", PipelineStats())
job_id = state.get("job_id")
report = compile_report(
detections=detections,
stats=stats,
video_source=state.get("video_path", ""),
content_type=profile.name,
job_id=job_id,
)
span.set_output({"brands": len(report.brands), "detections": len(report.timeline)})
flush_traces()
_emit(state, "compile_report", "done")
return {"report": report}
NODE_FUNCTIONS = [
("extract_frames", node_extract_frames),
("filter_scenes", node_filter_scenes),
("detect_edges", node_detect_edges),
("detect_objects", node_detect_objects),
("preprocess", node_preprocess),
("run_ocr", node_run_ocr),
("match_brands", node_match_brands),
("escalate_vlm", node_escalate_vlm),
("escalate_cloud", node_escalate_cloud),
("compile_report", node_compile_report),
]