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C++ 回放示例代码-Playback

# 回放示例-Playback

 

功能描述:连接设备开流 , 载入视频文件进行回放,并通过ESC_KEY键退出程序

> 本示例基于C++ High Level API进行演示

 

首先需要创建一个用于回放文件的Pipeline

//创建用于回放的pipeline对象
ob::Pipeline pipe("./OrbbecPipeline.bag");

 

获取回放对象的回放状态回调

//获取回放对象设置回放状态回调
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;
    }
});

从回放文件中读取设备信息与内参信息

//从回放文件中读取设备信息
auto deviceInfo = playback->getDeviceInfo();
std::cout << "======================DeviceInfo: name : " << deviceInfo->name() << " sn: " << deviceInfo->serialNumber()
  << " firmware: " << deviceInfo->firmwareVersion() << " vid: " << deviceInfo->vid() << " pid: " << deviceInfo->pid() << std::endl;

//从回放文件中读取内参信息
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;

开启回放

//开启回放
pipe.start(NULL);

 

以阻塞的方式等待一帧数据,该帧是一个复合帧,里面包含配置里启用的所有流的帧数据,并设置帧的等待超时时间

auto frameSet = pipe.waitForFrames(100);    //设置等待时间为100ms

停止Pipeline,将不再产生帧数据

pipe.stop();

 

程序正常退出后会释放资源

预期输出:

image.png