diff --git a/src/rtmp_manager.cpp b/src/rtmp_manager.cpp
index aa9b5f2..30df3da 100644
--- a/src/rtmp_manager.cpp
+++ b/src/rtmp_manager.cpp
@@ -77,12 +77,8 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam)
     const std::string live_rtmp = "rtmp://36.153.162.171:19435/" + app + "/" + stream_name + "?vhost=live";
     const std::string record_rtmp = "rtmp://127.0.0.1:2935/" + app + "/" + stream_name + "?vhost=record";
 
-    std::string cmd = "v4l2-ctl -d " + cam.device + " --set-fmt-video=width=" + std::to_string(width) +
-                      ",height=" + std::to_string(height) + ",pixelformat=NV12";
-    system(cmd.c_str());
-
     std::string pipeline_str = "v4l2src name=src device=" + cam.device +
-                               " io-mode=dmabuf "
+                               " io-mode=dmabuf do-timestamp=true "
                                " ! video/x-raw,format=NV12,"
                                "width=" +
                                std::to_string(width) + ",height=" + std::to_string(height) +