Does Jetpack 4.2 installed opencv support gstreamer on Jetson TX2?

I recently flashed my jetson TX2 with Jetpack 4.2. While going through this, The poster mentions that opencv does nor support gstreamer capabilities on nano, specifically he mentions no hardware .h264/.h265 support. Is this true for Jetson tx2 aswell? If i need gstreamer capabilities do i need to manually compile opencv?

I have the TX2 with JetPack 4.2 installed, and Gstreamer works perfectly. Indeed, you can find more information in the user guide :

Moreover, be careful if you are going to manually install OpenCV. JetPack already comes with an optimized version of OpenCV for Jetson (OpenCV4Tegra)