#============ 360 video metrics reported by encoder ======================
ViewPortPSNREnable                : 1
ViewPortList                      : 2 75.0 75.0 -64 -20 75.0 75.0 110 -7          # num_of_viewports  hFOV_0 vFOV_0 yaw_0 pitch_0 hFOV_1 vFOV_1 yaw_1 pitch_1 ...
ViewPortWidth                     : 1816                                           # 1816 for 8K; 856 for 4K;
ViewPortHeight                    : 1816                                           # 1816 for 8K; 856 for 4K;