Sync Multiple Outputs

This example shows how to apply software syncing to different outputs of the OAK device. In this example, the color stream is synced with two NeuralNetworks and passthrough.

Note

Visualization in current example is done with blocking behavor. This means that the program will halt at oak.start() until the window is closed. This is done to keep the example simple. For more advanced usage, see Blocking behavior section.

Demo

Mono Demo

Setup

Please run the install script to download all required dependencies. Please note that this script must be ran from git context, so you have to download the depthai repository first and then run the script

git clone https://github.com/luxonis/depthai.git
cd depthai/
python3 install_requirements.py

For additional information, please follow our installation guide.

Pipeline

Pipeline graph

Source Code

Python

Also available on GitHub

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from typing import Dict

from depthai_sdk import OakCamera

with OakCamera() as oak:
    color = oak.create_camera('color', encode='h264')
    nn = oak.create_nn('mobilenet-ssd', color)
    nn2 = oak.create_nn('face-detection-retail-0004', color)

    def cb(msgs: Dict):
        print('====== New synced packets! ======')
        for name, packet in msgs.items():
            print(f"Packet '{name}' with timestamp:", packet.get_timestamp(), 'Seq number:', packet.get_sequence_num(), 'Object', packet)

    oak.callback([nn.out.passthrough, nn.out.encoded, nn2.out.encoded], cb) \
        .configure_syncing(enable_sync=True, threshold_ms=30)
    # oak.show_graph()

    oak.start(blocking=True)

Got questions?

Head over to Discussion Forum for technical support or any other questions you might have.