我想录制一个特定名称的rosbag文件;但是,我只有在录制完成一半后才知道它,所以我不能在这里设置文件名:
cfg.enable_record_to_file("some/path/filename.bag");我尝试重命名新文件,如下所示,但没有成功。我还使用了std::experimental::filesystem::rename,结果是一样的。真正起作用的是录制第二个视频(在运行中),然后才重新命名第一个视频。这表明(两个)重命名函数都有效,但我无法更改文件名,因为该文件似乎在我当前的程序中仍处于打开状态。
int main(int argc, char* argv[])
{
rs2::config cfg;
rs2::device device;
auto pipe = std::make_shared<rs2::pipeline>();
cfg.disable_all_streams();
cfg.enable_stream(RS2_STREAM_DEPTH, 640, 480, RS2_FORMAT_Z16, 30);
cfg.enable_record_to_file("tmp.bag");
pipe->start(cfg);
device = pipe->get_active_profile().get_device();
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
device.as<rs2::recorder>().pause();
pipe->stop();
int res = std::rename("tmp.bag", "test.bag");
if (res == 0)
std::cout << "File successfully renamed" << std::endl;
else
std::cout << "Error renaming file" << std::endl;
return 0;
}我想知道如何从管道中‘卸载’生成的视频(管道->stop()不起作用),这样我就可以动态地重命名生成的rosbag文件。
发布于 2019-08-08 16:58:45
正如@TedLyngmo所建议的,添加大括号允许我动态更改文件名。代码如下:
int main(int argc, char* argv[])
{
{
rs2::config cfg;
rs2::device device;
auto pipe = std::make_shared<rs2::pipeline>();
cfg.disable_all_streams();
cfg.enable_stream(RS2_STREAM_DEPTH, 640, 480, RS2_FORMAT_Z16, 30);
cfg.enable_record_to_file("tmp.bag");
pipe->start(cfg);
device = pipe->get_active_profile().get_device();
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
device.as<rs2::recorder>().pause();
pipe->stop();
}
int res = std::rename("tmp.bag", "test.bag");
if (res == 0)
std::cout << "File successfully renamed" << std::endl;
else
std::cout << "Error renaming file" << std::endl;
return 0;
}编辑
我进一步研究了rs-record-playback,下面的代码解决了重命名问题。
int main(int argc, char* argv[])
{
rs2::device device;
auto pipe = std::make_shared<rs2::pipeline>();
pipe->start();
device = pipe->get_active_profile().get_device();
if (!device.as<rs2::recorder>())
{
pipe->stop(); // Stop the pipeline with the default configuration
pipe = std::make_shared<rs2::pipeline>();
rs2::config cfg;
cfg.disable_all_streams();
cfg.enable_stream(RS2_STREAM_DEPTH, 640, 480, RS2_FORMAT_Z16, 30);
cfg.enable_record_to_file("tmp.bag");
pipe->start(cfg);
device = pipe->get_active_profile().get_device();
}
// record for 1 sec, if conditions can be added to check if recorder is initialised
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
// if condition can be added to check if recording has been completed
pipe->stop();
pipe = std::make_shared<rs2::pipeline>(); // reset the shared pointer
pipe->start();
device = pipe->get_active_profile().get_device();
int res = std::rename("tmp.bag", "testing.bag");
if (res == 0)
std::cout << "File successfully renamed" << std::endl;
else
std::cout << "Error renaming file" << std::endl;
pipe->stop();
pipe = std::make_shared<rs2::pipeline>();
}https://stackoverflow.com/questions/57399755
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