[FFmpeg-user] How to record via udp without c:v copy?

[jjouv hcchnv]

I want to record from sever that play rtsp udp
When I record without c:v copy I get lot of packages lost so i cant stream it well

the only way i can stream this live rtsp udp is put c:v copy

the problem is that when i do it i can't overlay on this video with filter complex
(i want get this live and imidiatly stream it with 1 ffmpeg command)
ffmpeg  -i rtsp://154.678.1.1:5554/live.h264 -c:v http://122.666.7.7/live.h264
That what i do now to stream it but i cant overlay when  copy is apply

I looking for any idea