The remote control being hacked is a Remocon RMC-166H.
The rx.grc GNU Radio flowgraph records the RF signal when the buttons of the remote control is pressed. The below video is an example of the results when the flowgraph is run:
hackrf_gnuradio.mp4
The tx.grc flowgraph plays the recorded signal using a HackRF One. Below is a real world video of tx.grc opening a physical garage door:
https://www.youtube.com/watch?v=fSLoM5T9G_8
To confirm that the recorded signals are valid, we can use another RTL-SDR to listen to the transmitted signal from the HackRF One. In particular, we can run the below rtl_433 command which prints the decoded signal received from the RTL-SDR:
rtl_433 -f 316M -s 2M -X "name=shaoyu,modulation=ook_pwm,short=370,long=772,gap=1500,reset=9000,tolerance=152" -R 131 -vvv
Below are photos of the hacked Remocon RMC-166H:
