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Add pulse detection

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This commit is contained in:
Kalman 2018-11-05 16:23:32 +08:00
parent 9a465b9f04
commit a57edded4b
1 changed files with 23 additions and 0 deletions
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23
src/uvc/uvc-v4l2.cc
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@ -41,6 +41,11 @@ namespace uvc {
LOG(severity) << str << " error " << errno << ", " << strerror(errno); \ LOG(severity) << str << " error " << errno << ", " << strerror(errno); \
} while (0) } while (0)
#define NO_DATA_MAX_COUNT 200
#define LIVING_MAX_COUNT 9000
int no_data_count = 0;
int living_count = 0;
/* /*
class device_error : public std::exception { class device_error : public std::exception {
public: public:
@ -385,8 +390,26 @@ struct device {
if (xioctl(fd, VIDIOC_QBUF, &buf) < 0) if (xioctl(fd, VIDIOC_QBUF, &buf) < 0)
throw_error("VIDIOC_QBUF"); throw_error("VIDIOC_QBUF");
}); });
if (living_count < LIVING_MAX_COUNT) {
living_count++;
} else {
living_count = 0;
LOG(INFO) << "UVC pulse detection,Please ignore.";
} }
} }
no_data_count = 0;
} else {
no_data_count++;
}
if (no_data_count > NO_DATA_MAX_COUNT) {
no_data_count = 0;
living_count = 0;
LOG(WARNING) << __func__ << "v4l2 get stream time out,Try to reboot!";
stop_capture();
start_capture();
}
} }
void start_streaming() { void start_streaming() {