public class RTSPVideoSource : MonoBehaviour [DllImport("RTSPPlugin")] private static extern System.IntPtr CreateRTSPPlayer(); [DllImport("RTSPPlugin")] private static extern bool OpenStream(System.IntPtr player, string url); private System.IntPtr player; private Texture2D videoTexture;
void processH264Packet(uint8_t* data, int len) // Simplified: assemble NAL units // For FU-A: combine FU indicator + FU header + payload // Send to decoder (e.g., FFmpeg, OpenH264) rtspvideoplugin
public: bool open(const char* rtspUrl) avformat_network_init(); AVDictionary* opts = nullptr; av_dict_set(&opts, "rtsp_transport", "tcp", 0); // TCP for reliability av_dict_set(&opts, "max_delay", "500000", 0); private System.IntPtr player
class FFmpegRTSPDecoder AVFormatContext* m_fmtCtx = nullptr; AVCodecContext* m_codecCtx = nullptr; AVFrame* m_frame = nullptr; SwsContext* m_swsCtx = nullptr; private Texture2D videoTexture
; 4.1 Unity Plugin (C++ -> C#) Expose C functions:
import cv2 import numpy as np from threading import Thread class RTSPVideoPlugin: def init (self, rtsp_url): self.url = rtsp_url self.cap = None self.running = False self.frame = None