Index: media/capture/video/video_capture_system.h |
diff --git a/media/capture/video/video_capture_system.h b/media/capture/video/video_capture_system.h |
index b0b6313123babdbc56bb1510348800c30ca1df0d..3897a20d3902759c0e3e8655c73ccabd0cb8d224 100644 |
--- a/media/capture/video/video_capture_system.h |
+++ b/media/capture/video/video_capture_system.h |
@@ -10,6 +10,8 @@ |
namespace media { |
+// GetDeviceInfosAsync() should be called at least once before calling |
+// CreateDevice(), because otherwise CreateDevice() will allways return nullptr. |
class CAPTURE_EXPORT VideoCaptureSystem { |
public: |
using DeviceInfoCallback = |