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allow setting specific edgetpu in config

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This commit is contained in:
Blake Blackshear
2020-09-07 12:49:47 -05:00
parent f64320a464
commit 2f758af097
3 changed files with 22 additions and 8 deletions
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21
frigate/edgetpu.py
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@@ -34,18 +34,24 @@ class ObjectDetector(ABC):
pass
class LocalObjectDetector(ObjectDetector):
def __init__(self, labels=None):
def __init__(self, tf_device=None, labels=None):
if labels is None:
self.labels = {}
else:
self.labels = load_labels(labels)
device_config = {"device": "usb"}
if not tf_device is None:
device_config = {"device": tf_device}
edge_tpu_delegate = None
try:
edge_tpu_delegate = load_delegate('libedgetpu.so.1.0', {"device": "usb"})
print("USB TPU found")
print(f"Attempting to load TPU as {device_config['device']}")
edge_tpu_delegate = load_delegate('libedgetpu.so.1.0', device_config)
print("TPU found")
except ValueError:
try:
print(f"Attempting to load TPU as pci:0")
edge_tpu_delegate = load_delegate('libedgetpu.so.1.0', {"device": "pci:0"})
print("PCIe TPU found")
except ValueError:
@@ -92,11 +98,11 @@ class LocalObjectDetector(ObjectDetector):
return detections
def run_detector(detection_queue, avg_speed, start):
def run_detector(detection_queue, avg_speed, start, tf_device):
print(f"Starting detection process: {os.getpid()}")
listen()
plasma_client = plasma.connect("/tmp/plasma")
object_detector = LocalObjectDetector()
object_detector = LocalObjectDetector(tf_device=tf_device)
while True:
object_id_str = detection_queue.get()
@@ -117,11 +123,12 @@ def run_detector(detection_queue, avg_speed, start):
avg_speed.value = (avg_speed.value*9 + duration)/10
class EdgeTPUProcess():
def __init__(self):
def __init__(self, tf_device=None):
self.detection_queue = mp.Queue()
self.avg_inference_speed = mp.Value('d', 0.01)
self.detection_start = mp.Value('d', 0.0)
self.detect_process = None
self.tf_device = tf_device
self.start_or_restart()
def start_or_restart(self):
@@ -134,7 +141,7 @@ class EdgeTPUProcess():
print("Detection process didnt exit. Force killing...")
self.detect_process.kill()
self.detect_process.join()
self.detect_process = mp.Process(target=run_detector, args=(self.detection_queue, self.avg_inference_speed, self.detection_start))
self.detect_process = mp.Process(target=run_detector, args=(self.detection_queue, self.avg_inference_speed, self.detection_start, self.tf_device))
self.detect_process.daemon = True
self.detect_process.start()