stream
Stream
¶
Bases: BaseInterface
Roboflow defined stream interface for a general-purpose inference server.
Attributes:
Name | Type | Description |
---|---|---|
model_manager |
ModelManager
|
The manager that handles model inference tasks. |
model_registry |
RoboflowModelRegistry
|
The registry to fetch model instances. |
api_key |
str
|
The API key for accessing models. |
class_agnostic_nms |
bool
|
Flag for class-agnostic non-maximum suppression. |
confidence |
float
|
Confidence threshold for inference. |
iou_threshold |
float
|
The intersection-over-union threshold for detection. |
json_response |
bool
|
Flag to toggle JSON response format. |
max_candidates |
float
|
The maximum number of candidates for detection. |
max_detections |
float
|
The maximum number of detections. |
model |
str | Callable
|
The model to be used. |
stream_id |
str
|
The ID of the stream to be used. |
use_bytetrack |
bool
|
Flag to use bytetrack, |
Methods:
Name | Description |
---|---|
init_infer |
Initialize the inference with a test frame. |
preprocess_thread |
Preprocess incoming frames for inference. |
inference_request_thread |
Manage the inference requests. |
run_thread |
Run the preprocessing and inference threads. |
Source code in inference/core/interfaces/stream/stream.py
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__init__(api_key=API_KEY, class_agnostic_nms=CLASS_AGNOSTIC_NMS, confidence=CONFIDENCE, enforce_fps=ENFORCE_FPS, iou_threshold=IOU_THRESHOLD, max_candidates=MAX_CANDIDATES, max_detections=MAX_DETECTIONS, model=MODEL_ID, source=STREAM_ID, use_bytetrack=ENABLE_BYTE_TRACK, use_main_thread=False, output_channel_order='RGB', on_prediction=None, on_start=None, on_stop=None)
¶
Initialize the stream with the given parameters. Prints the server settings and initializes the inference with a test frame.
Source code in inference/core/interfaces/stream/stream.py
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inference_request_thread()
¶
Manage the inference requests.
Processes preprocessed frames for inference, post-processes the predictions, and sends the results to registered callbacks.
Source code in inference/core/interfaces/stream/stream.py
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init_infer()
¶
Initialize the inference with a test frame.
Creates a test frame and runs it through the entire inference process to ensure everything is working.
Source code in inference/core/interfaces/stream/stream.py
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preprocess_thread()
¶
Preprocess incoming frames for inference.
Reads frames from the webcam stream, converts them into the proper format, and preprocesses them for inference.
Source code in inference/core/interfaces/stream/stream.py
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run_thread()
¶
Run the preprocessing and inference threads.
Starts the preprocessing and inference threads, and handles graceful shutdown on KeyboardInterrupt.
Source code in inference/core/interfaces/stream/stream.py
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