Generally the SoCs used will have a separate video encoder IP-block that's not part of the Mali GPU. For example the "Cedar" video engine on Allwinner SoCs, Roc

Generally the SoCs used will have a separate video encoder IP-block that's not part of the Mali GPU. For example the "Cedar" video engine on Allwinner SoCs, Rockchip's VPU, Samsung's Multi-Function Codec, Qualcomm's Venus.