i have run TestAac with
ffmpeg -re -i input.mp4 -c:a copy -vn -f rtp rtp://127.0.0.1:5005
it generate right aac file
but
i have run TestH264 with
ffmpeg -re -i input.mp4 -c:v copy -an -f rtp rtp://127.0.0.1:5000
it not generate right h264 file however i changed the sprop value with value printed from this command