video/opencv: add gaintrackhat-opentrack-3.2

1 files changed, 1 insertions, 0 deletions

diff --git a/video-opencv/impl-camera.cpp b/video-opencv/impl-camera.cpp
index a3b5ed5d..855f3345 100644
--- a/video-opencv/impl-camera.cpp
+++ b/video-opencv/impl-camera.cpp
@@ -59,6 +59,7 @@ void cam::set_exposure(bool write)
             { cv::CAP_PROP_SHARPNESS,       3 },
             { cv::CAP_PROP_GAMMA,         100 },
             { cv::CAP_PROP_BACKLIGHT,       1 },
+            { cv::CAP_PROP_GAIN,            0 },
         };
         for (const auto [prop, value] : props)
             cap->set(prop, value);