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C++ Sample Playback
Orbbec Gemini 330 Series Documentation

C++ Sample Playback

Update on 2025-07-25 08:53:07

Function description: Connect the device to start streaming, load video files for playback, and exit the program with the ESC_KEY key

| This example is based on the C++High Level API for demonstration

Firstly, you need to create a Pipeline for playing back files

// Create a pipeline object for playback
ob::Pipeline pipe("./OrbbecPipeline.bag");

Retrieve the playback status callback of the playback object

// Get playback object, set playback status callback
auto playback = pipe.getPlayback();
playback->setPlaybackStateCallback([&](OBMediaState state) {
    if(state == OB_MEDIA_BEGIN) {
        std::cout << "Playback file begin." << std::endl;
    }
    else if(state == OB_MEDIA_END) {
        std::cout << "Playback file end." << std::endl;
    }
});

Reading device information and internal parameter information from playback files

// Reading device information from playback files
auto deviceInfo = playback->getDeviceInfo();
std::cout << "======================DeviceInfo: name : " << deviceInfo->name() << " sn: " << deviceInfo->serialNumber()
  << " firmware: " << deviceInfo->firmwareVersion() << " vid: " << deviceInfo->vid() << " pid: " << deviceInfo->pid() << std::endl;

// Reading internal parameter information from playback files
auto cameraParam = pipe.getCameraParam();
std::cout << "======================Camera params : rgb width:" << cameraParam.rgbIntrinsic.width << " rgb height: " << cameraParam.rgbIntrinsic.height
              << " depth width: " << cameraParam.depthIntrinsic.width << " depth height: " << cameraParam.rgbIntrinsic.height << std::endl;

Enable playback

//Enable playback
pipe.start(NULL);

Wait for a frame of data in a blocking manner, which is a composite frame containing frame data for all streams enabled in the configuration, and set the waiting timeout time for the frame

auto frameSet = pipe.waitForFrames(100);	// Set the waiting time to 100ms

Stop Pipeline, no more frame data will be generated

pipe.stop();

Expected Output

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