diff options
Diffstat (limited to 'opentrack/camera-names.hpp')
| -rw-r--r-- | opentrack/camera-names.hpp | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/opentrack/camera-names.hpp b/opentrack/camera-names.hpp index 6f82ba34..fd869e6b 100644 --- a/opentrack/camera-names.hpp +++ b/opentrack/camera-names.hpp @@ -13,6 +13,13 @@ # include <unistd.h> #endif +#ifdef __linux +#include <fcntl.h> +#include <sys/ioctl.h> +#include <linux/videodev2.h> +#include <cerrno> +#endif + template<typename = void> QList<QString> get_camera_names() { QList<QString> ret; @@ -69,14 +76,29 @@ QList<QString> get_camera_names() { qDebug() << "failed CLSID_VideoInputDeviceCategory" << hr; pSysDevEnum->Release(); -#else +#endif +#ifdef __linux for (int i = 0; i < 16; i++) { char buf[128]; sprintf(buf, "/dev/video%d", i); - if (access(buf, R_OK | W_OK) == 0) { + if (access(buf, F_OK) == 0) ret.append(buf); - } else { + else continue; + + if (access(buf, R_OK | W_OK) == 0) { + int fd = open(buf, O_RDONLY); + if (fd == -1) + continue; + struct v4l2_capability video_cap; + if(ioctl(fd, VIDIOC_QUERYCAP, &video_cap) == -1) + { + qDebug() << "VIDIOC_QUERYCAP" << errno; + close(fd); + continue; + } + ret[ret.size()-1] = reinterpret_cast<const char*>(video_cap.card); + close(fd); } } #endif |