Video stream decoded correctly with lower bitrates, corrupted when using higher bitrate

[camalolo]

Hello, this might be a hardware issue, but I am not sure.

Please provide the following info.

NVidia Geforce Experience version:

3.24.1.126

Moonlight Embedded version:

Master branch 2.5.2

Moonlight Embedded source: repository/included in distribution/compiled from source/...

https://github.com/moonlight-stream/moonlight-embedded

Moonlight Embedded running on: Raspberry Pi/Cubox-i/Hummingboard/Other linux device/...

Odroid XU4

LAN is gigabit ethernet between the PC and the client

(odroid = 192.168.1.124)

ping 192.168.1.124 PING 192.168.1.124 (192.168.1.124) 56(84) bytes of data. 64 bytes from 192.168.1.124: icmp_seq=1 ttl=63 time=0.871 ms 64 bytes from 192.168.1.124: icmp_seq=2 ttl=63 time=0.820 ms 64 bytes from 192.168.1.124: icmp_seq=3 ttl=63 time=0.784 ms 64 bytes from 192.168.1.124: icmp_seq=4 ttl=63 time=0.786 ms 64 bytes from 192.168.1.124: icmp_seq=5 ttl=63 time=0.834 ms 64 bytes from 192.168.1.124: icmp_seq=6 ttl=63 time=0.719 ms 64 bytes from 192.168.1.124: icmp_seq=7 ttl=63 time=0.787 ms 64 bytes from 192.168.1.124: icmp_seq=8 ttl=63 time=0.813 ms 64 bytes from 192.168.1.124: icmp_seq=9 ttl=63 time=0.810 ms 64 bytes from 192.168.1.124: icmp_seq=10 ttl=63 time=0.767 ms 64 bytes from 192.168.1.124: icmp_seq=11 ttl=63 time=0.741 ms 64 bytes from 192.168.1.124: icmp_seq=12 ttl=63 time=0.805 ms 64 bytes from 192.168.1.124: icmp_seq=13 ttl=63 time=0.816 ms 64 bytes from 192.168.1.124: icmp_seq=14 ttl=63 time=0.833 ms 64 bytes from 192.168.1.124: icmp_seq=15 ttl=63 time=0.855 ms 64 bytes from 192.168.1.124: icmp_seq=16 ttl=63 time=0.761 ms ^C --- 192.168.1.124 ping statistics --- 16 packets transmitted, 16 received, 0% packet loss, time 15578ms rtt min/avg/max/mdev = 0.719/0.800/0.871/0.041 ms

iperf -c 192.168.1.124 -i1 -t20

Client connecting to 192.168.1.124, TCP port 5001 TCP window size: 85.0 KByte (default)

[ 3] local 172.29.241.89 port 40594 connected with 192.168.1.124 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 1.0 sec 113 MBytes 948 Mbits/sec [ 3] 1.0- 2.0 sec 110 MBytes 923 Mbits/sec [ 3] 2.0- 3.0 sec 106 MBytes 890 Mbits/sec [ 3] 3.0- 4.0 sec 109 MBytes 911 Mbits/sec [ 3] 4.0- 5.0 sec 110 MBytes 921 Mbits/sec [ 3] 5.0- 6.0 sec 111 MBytes 931 Mbits/sec [ 3] 6.0- 7.0 sec 112 MBytes 938 Mbits/sec [ 3] 7.0- 8.0 sec 109 MBytes 916 Mbits/sec [ 3] 8.0- 9.0 sec 112 MBytes 937 Mbits/sec [ 3] 9.0-10.0 sec 108 MBytes 906 Mbits/sec [ 3] 10.0-11.0 sec 111 MBytes 933 Mbits/sec [ 3] 11.0-12.0 sec 111 MBytes 932 Mbits/sec [ 3] 12.0-13.0 sec 112 MBytes 938 Mbits/sec [ 3] 13.0-14.0 sec 110 MBytes 924 Mbits/sec [ 3] 14.0-15.0 sec 112 MBytes 941 Mbits/sec [ 3] 15.0-16.0 sec 111 MBytes 928 Mbits/sec [ 3] 16.0-17.0 sec 107 MBytes 894 Mbits/sec [ 3] 17.0-18.0 sec 111 MBytes 928 Mbits/sec [ 3] 18.0-19.0 sec 111 MBytes 932 Mbits/sec [ 3] 19.0-20.0 sec 111 MBytes 930 Mbits/sec [ 3] 0.0-20.0 sec 2.15 GBytes 925 Mbits/sec

Moonlight Embedded running on distribution: Arch Linux/Raspbian/OpenELEC/...

Ubuntu 20.04 Linux odroid 5.4.167-236 #1 SMP PREEMPT Tue Dec 21 09:46:48 EST 2021 armv7l armv7l armv7l GNU/Linux

Verbose output -verbose of Moonlight Embedded:

With -bitrate 4000 :

DISPLAY=:0 /opt/bin/moonlight -platform sdl -mapping /opt/share/moonlight/sdl.gamecontrollerdb.txt -1080 -bitrate 4000 -app "Desktop" stream -verbose Moonlight Embedded 2.5.2 (CEC;SDL;X11;VDPAU;VAAPI;ALSA;PULSE;EMBEDDED) Searching for server... Connect to 192.168.1.106... GPU: NVIDIA GeForce RTX 3070, GFE: 3.24.0.126 (gs_04_37_30719632, 7.1.437.0) Platform SDL2 (software decoding) Stream 1920 x 1080, 60 fps, 4000 kbps RTSP port: 48010 Initializing platform...done Resolving host name...done Initializing audio stream...done Starting RTSP handshake...Audio port: 48000 Video port: 47998 Control port: 47999 done Initializing control stream...done Initializing video stream...done Initializing input stream...done Starting control stream...done Starting video stream...done Starting audio stream...done Starting input stream...Received first audio packet after 0 ms Initial audio resync period: 660 milliseconds done Received first video packet after 0 ms Stopping input stream...ENet wait interrupted Control stream connection failed: -1 done Stopping audio stream...done Stopping video stream...done Stopping control stream...ENet peer acknowledged disconnection done Cleaning up input stream...done Cleaning up video stream...done Cleaning up control stream...done Cleaning up audio stream...done Cleaning up platform...done

With -bitrate 12000

DISPLAY=:0 /opt/bin/moonlight -platform sdl -mapping /opt/share/moonlight/sdl.gamecontrollerdb.txt -1080 -bitrate 12000 -app "Desktop" stream -verbose Moonlight Embedded 2.5.2 (CEC;SDL;X11;VDPAU;VAAPI;ALSA;PULSE;EMBEDDED) Searching for server... Connect to 192.168.1.106... GPU: NVIDIA GeForce RTX 3070, GFE: 3.24.0.126 (gs_04_37_30719632, 7.1.437.0) Platform SDL2 (software decoding) Stream 1920 x 1080, 60 fps, 12000 kbps RTSP port: 48010 Initializing platform...done Resolving host name...done Initializing audio stream...done Starting RTSP handshake...Audio port: 48000 Video port: 47998 Control port: 47999 done Initializing control stream...done Initializing video stream...done Initializing input stream...done Starting control stream...done Starting video stream...done Starting audio stream...done Starting input stream...done Received first audio packet after 0 ms Initial audio resync period: 585 milliseconds Received first video packet after 0 ms Unrecoverable frame 314: 3+0=3 received < 14 needed Network dropped 1 frame (frame 314) Invalidate reference frame request sent (314 to 314) Unrecoverable frame 326: 13+0=13 received < 14 needed Network dropped 1 frame (frame 326) Invalidate reference frame request sent (326 to 326) Unrecoverable frame 338: 13+0=13 received < 14 needed Network dropped 1 frame (frame 338) Invalidate reference frame request sent (338 to 338) Unrecoverable frame 343: 11+0=11 received < 14 needed Network dropped 1 frame (frame 343) Invalidate reference frame request sent (343 to 343) Unrecoverable frame 346: 7+0=7 received < 14 needed Network dropped 1 frame (frame 346) Invalidate reference frame request sent (346 to 346) Unrecoverable frame 351: 10+0=10 received < 13 needed Network dropped 1 frame (frame 351) Invalidate reference frame request sent (351 to 351) Unrecoverable frame 356: 12+0=12 received < 14 needed Network dropped 1 frame (frame 356) Invalidate reference frame request sent (356 to 356) Network dropped 1 frame (frame 376) Invalidate reference frame request sent (376 to 376) Unrecoverable frame 386: 7+0=7 received < 13 needed Network dropped 2 frames (frames 386 to 387) Invalidate reference frame request sent (386 to 387) Unrecoverable frame 392: 11+0=11 received < 13 needed Network dropped 1 frame (frame 392) Invalidate reference frame request sent (392 to 392) Unrecoverable frame 398: 4+0=4 received < 14 needed Network dropped 1 frame (frame 398)

[... many more ...]

Invalidate reference frame request sent (4758 to 4759) Unrecoverable frame 4764: 11+0=11 received < 14 needed Network dropped 1 frame (frame 4764) Invalidate reference frame request sent (4764 to 4764) Unrecoverable frame 4769: 10+0=10 received < 14 needed Network dropped 1 frame (frame 4769) Invalidate reference frame request sent (4769 to 4769) Connection is okay Stopping input stream...done Stopping audio stream...ENet wait interrupted Control stream connection failed: -1 done Stopping video stream...done Stopping control stream...ENet peer acknowledged disconnection done Cleaning up input stream...done Cleaning up video stream...done Cleaning up control stream...done Cleaning up audio stream...done Cleaning up platform...done

What is the expected result?

A beautiful video

This is the video with -bitrate 4000

https://photos.app.goo.gl/Z6Sp5UwCkrPL7r4G9

What happens instead of that?

A corrupted video

This is the video with -birate 12000

https://photos.app.goo.gl/Zy4KkGQyCdSyQiFV6

[camalolo]

Could it be related to this ?

https://github.com/moonlight-stream/moonlight-qt/issues/490

[cgutman]

The problem is your Odroid XU4's Ethernet adapter is choking on the UDP packet bursts sent from your PC. You can tell because normal drop patterns will leave some FEC packets intact (that's the +0 in all the drop messages). FEC packets always come after the frame data, so it's clearly dropping the tail of the frame every time.

You can often mitigate this by changing your host's Ethernet adapter to 100Mb, but apart from that there's nothing else you can do. The packets just don't make it to the networking stack at all. You can verify this in Wireshark if you want by looking at UDP 47998, decoding it as RTP, and noting the gaps in RTP sequence numbers.

[camalolo]

Oh wow - thank you for such a precise answer ! Closing the issue.