diff options
Diffstat (limited to 'src/gsttools/qgstutils.cpp')
| -rw-r--r-- | src/gsttools/qgstutils.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gsttools/qgstutils.cpp b/src/gsttools/qgstutils.cpp index 55a0be1e4..61ba09e76 100644 --- a/src/gsttools/qgstutils.cpp +++ b/src/gsttools/qgstutils.cpp @@ -42,6 +42,7 @@ #include <QtCore/qstringlist.h> #include <QtGui/qimage.h> #include <qaudioformat.h> +#include <QtCore/qelapsedtimer.h> #include <QtMultimedia/qvideosurfaceformat.h> #include <gst/audio/audio.h> @@ -510,6 +511,10 @@ Q_GLOBAL_STATIC(FactoryCameraInfoMap, qt_camera_device_info); QVector<QGstUtils::CameraInfo> QGstUtils::enumerateCameras(GstElementFactory *factory) { + static QElapsedTimer camerasCacheAgeTimer; + if (camerasCacheAgeTimer.isValid() && camerasCacheAgeTimer.elapsed() > 500) // ms + qt_camera_device_info()->clear(); + FactoryCameraInfoMap::const_iterator it = qt_camera_device_info()->constFind(factory); if (it != qt_camera_device_info()->constEnd()) return *it; @@ -568,6 +573,7 @@ QVector<QGstUtils::CameraInfo> QGstUtils::enumerateCameras(GstElementFactory *fa } if (!devices.isEmpty() || !hasVideoSource) { + camerasCacheAgeTimer.restart(); return devices; } } @@ -626,6 +632,7 @@ QVector<QGstUtils::CameraInfo> QGstUtils::enumerateCameras(GstElementFactory *fa } qt_safe_close(fd); } + camerasCacheAgeTimer.restart(); #endif // USE_V4L return devices; |