hello Romary,
- video converter(VIC) can do RGBA → YUV420 conversion.
- please enable tegrastat and running the sample code in tegra multimedia api to evaluate the performance.
JetPack/64_TX1/tegra_multimedia_api/samples/07_video_convert/
also, here’s reference about tegrastat: https://devtalk.nvidia.com/default/topic/968941/?comment=4990831