Design of HEVC Real-time Video Transmission System Based on ARM for Drone

In view of the real-time, low-power and miniaturization characteristics of real-time UAV real-time video, an ARM-based embedded video transmission system is designed. The system uses NXP i.MX6Q as the core processor of the video acquisition terminal based on Linux operating system, using V4L2 interface technology to capture video, using FFmpeg to carry out HEVC (High Efficiency Video Coding) standard encoding for video, extending RTMP support for HEVC, using Nginx to carry streaming media server on cloud server side. The 4G mobile network pushes the video in real time through the RTMP real-time message transmission protocol. The video receiver uses FFplay for real-time display. The experimental results show that the system runs stably, the average delay of the video display is below 900 ms, the playback is smooth, and the image is clear.