Sending h265 by network gives corrupted video

Vinod Kesti vinodkesti at yahoo.com
Mon Aug 19 05:35:05 UTC 2019


Борис

Looks like the artifacts in the video are due to packet loss. You are trying
to send 10 mbps over udp.
May be packets are dropped by the receiver due to buffer overflow. 
Try increasing buffer-size in udpsink and udp-src plugin. 

If still issue observed capture tcpdump in receiver machine and check if all
the rtp packets are received through WireShark.
 
Or use rtpjitterbuffer stat to get num-lost and num-late.

  stats               : Various statistics
                        flags: readable
                        Boxed pointer of type "GstStructure"
                                                          num-pushed: 0
                                                            num-lost: 0
                                                            num-late: 0
                                                      num-duplicates: 0
                                                          avg-jitter: 0
                                                           rtx-count: 0
                                                     rtx-success-count: 0
                                                      rtx-per-packet: 0
                                                             rtx-rtt: 0


Note: The maximum buffer size is clipped to max rmem_max and wmem_max in
linux.

Further drop you have to check network infra and machine kernel buffer
tuning.



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