/opt/flussonic/bin/ffprobe udp://ваш источник
[hevc @ 0x206bcc0] Error parsing NAL unit #3.
Input #0, mpegts, from 'udp://227.40.50.97:1234/172.20.1.110':
Duration: N/A, start: 62755.148956, bitrate: N/A
Program 1134
Metadata:
service_name : National Geographic HD
service_provider: SAT
Stream #0:0[0x47a]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv, bt709, progressive), 1920x540 [SAR 1:1 DAR 32:9], 50 fps, 50 tbr, 90k tbn, 50 tbc
Stream #0:1[0x47b](rus): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:2[0x47c](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:3[0x47f](rus): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
root@flussonic:/home/streaming#