danieltwagner
commented
4 years ago I found this resolved issue: https://github.com/mpromonet/v4l2rtspserver/issues/162
Neither -r nor -B or the combination of both appears to make any difference.
$ strace v4l2rtspserver -W 1640 -H 1232 -F 25 -P 8555 -S /dev/video0 -vv -r -B 2>&1 | grep -v gettimeofday
[... the process is now waiting for a connection]
_newselect(4, [3], [], [], {tv_sec=0, tv_usec=9472}) = 0 (Timeout)
_newselect(4, [3], [], [], {tv_sec=0, tv_usec=9482}) = 0 (Timeout)
_newselect(4, [3], [], [], {tv_sec=0, tv_usec=9476}) = 1 (in [3], left {tv_sec=0, tv_usec=8669})
accept(3, {sa_family=AF_INET, sin_port=htons(51463), sin_addr=inet_addr("10.0.102.130")}, [16]) = 5
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0xb6bb3120}, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0xb6bb3120}, 8) = 0
fcntl64(5, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(5, F_SETFL, O_RDWR|O_NONBLOCK) = 0
getsockopt(5, SOL_SOCKET, SO_SNDBUF, [102400], [4]) = 0
getsockopt(5, SOL_SOCKET, SO_SNDBUF, [102400], [4]) = 0
brk(0x8fc000) = 0x8fc000
_newselect(6, [3 5], [], [5], {tv_sec=0, tv_usec=7743}) = 1 (in [5], left {tv_sec=0, tv_usec=7695})
recvfrom(5, "OPTIONS rtsp://pi-camera"..., 20000, 0, 0xbeacfe8c, [16->0]) = 133
send(5, "RTSP/1.0 200 OK\r\nCSeq: 2\r\nDate: "..., 152, 0) = 152
_newselect(6, [3 5], [], [5], {tv_sec=0, tv_usec=9479}) = 1 (in [5], left {tv_sec=0, tv_usec=1024})
recvfrom(5, "DESCRIBE rtsp://pi-camera"..., 20000, 0, 0xbeacfe8c, [16->0]) = 159
socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 6
setsockopt(6, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
setsockopt(6, SOL_SOCKET, SO_REUSEPORT, [1], 4) = 0
setsockopt(6, SOL_IP, IP_MULTICAST_LOOP, "\1", 1) = 0
fcntl64(6, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(6, F_SETFL, O_RDWR|O_NONBLOCK) = 0
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
mmap2(NULL, 2052096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb5c0b000
munmap(0xb5c0b000, 2052096) = 0
close(6) = 0
getsockname(5, {sa_family=AF_INET, sin_port=htons(8555), sin_addr=inet_addr("10.0.102.237")}, [16]) = 0
send(5, "RTSP/1.0 200 OK\r\nCSeq: 3\r\nDate: "..., 631, 0) = 631
_newselect(6, [3 5], [], [5], {tv_sec=0, tv_usec=9641}) = 1 (in [5], left {tv_sec=0, tv_usec=3748})
recvfrom(5, "SETUP rtsp://10.0.102.237:8555/u"..., 20000, 0, 0xbeacfe8c, [16->0]) = 183
getsockname(5, {sa_family=AF_INET, sin_port=htons(8555), sin_addr=inet_addr("10.0.102.237")}, [16]) = 0
socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 6
setsockopt(6, SOL_SOCKET, SO_REUSEADDR, [0], 4) = 0
setsockopt(6, SOL_SOCKET, SO_REUSEPORT, [0], 4) = 0
setsockopt(6, SOL_IP, IP_MULTICAST_LOOP, "\1", 1) = 0
bind(6, {sa_family=AF_INET, sin_port=htons(6970), sin_addr=inet_addr("0.0.0.0")}, 16) = 0
socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 7
setsockopt(7, SOL_SOCKET, SO_REUSEADDR, [0], 4) = 0
setsockopt(7, SOL_SOCKET, SO_REUSEPORT, [0], 4) = 0
setsockopt(7, SOL_IP, IP_MULTICAST_LOOP, "\1", 1) = 0
bind(7, {sa_family=AF_INET, sin_port=htons(6971), sin_addr=inet_addr("0.0.0.0")}, 16) = 0
fcntl64(6, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(6, F_SETFL, O_RDWR|O_NONBLOCK) = 0
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
mmap2(NULL, 2052096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb5c0b000
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
getsockopt(6, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
send(5, "RTSP/1.0 200 OK\r\nCSeq: 4\r\nDate: "..., 214, 0) = 214
_newselect(6, [3 5], [], [5], {tv_sec=0, tv_usec=8935}) = 1 (in [5], left {tv_sec=0, tv_usec=2411})
recvfrom(5, "PLAY rtsp://10.0.102.237:8555/un"..., 20000, 0, 0xbeacfe8c, [16->0]) = 162
getsockname(5, {sa_family=AF_INET, sin_port=htons(8555), sin_addr=inet_addr("10.0.102.237")}, [16]) = 0
fcntl64(7, F_GETFL) = 0x2 (flags O_RDWR)
fcntl64(7, F_SETFL, O_RDWR|O_NONBLOCK) = 0
getsockopt(7, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
getsockopt(7, SOL_SOCKET, SO_SNDBUF, [180224], [4]) = 0
write(2, "RTCPInstance::RTCPInstance error"..., 77RTCPInstance::RTCPInstance error: totSessionBW parameter should not be zero!
) = 77
setsockopt(7, SOL_IP, IP_MULTICAST_TTL, "\377", 1) = 0
sendto(7, "\200\310\0\6\17K\247E\342\311\241W\317\215\35\212\227\216\255b\0\0\0\0\0\0\0\0\201\312\0\7"..., 60, 0, {sa_family=AF_INET, sin_port=htons(61459), sin_addr=inet_addr("10.0.102.130")}, 16) = 60
getsockname(7, {sa_family=AF_INET, sin_port=htons(6971), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0
mmap2(NULL, 2052096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb5a16000
send(5, "RTSP/1.0 200 OK\r\nCSeq: 5\r\nDate: "..., 187, 0) = 187
_newselect(8, [3 5 7], [], [5], {tv_sec=0, tv_usec=9607}) = 1 (in [7], left {tv_sec=0, tv_usec=9566})
recvfrom(7, "\316\372\355\376", 1422, 0, {sa_family=AF_INET, sin_port=htons(61459), sin_addr=inet_addr("10.0.102.130")}, [16]) = 4
_newselect(8, [3 5 7], [], [5], {tv_sec=0, tv_usec=1753}) = 1 (in [7], left {tv_sec=0, tv_usec=1712})
recvfrom(7, "\316\372\355\376", 1422, 0, {sa_family=AF_INET, sin_port=htons(61459), sin_addr=inet_addr("10.0.102.130")}, [16]) = 4
_newselect(8, [3 5 7], [], [5], {tv_sec=0, tv_usec=9646}) = 0 (Timeout)
_newselect(8, [3 5 7], [], [5], {tv_sec=0, tv_usec=9643}) = 0 (Timeout)
_newselect(8, [3 5 7], [], [5], {tv_sec=0, tv_usec=9655}) = 0 (Timeout)
[keeps repeating]
mpromonet
azsde
WiredLife
mystcb
CeruleanSpiral
I had a v4l2rtspserver working nicely on my Raspberry Pi Zero W but after I updated it stopped working.
Kernel that worked:
Kernel that doesn't work:
I'm thinking the
totSessionBW(might be a live 555 thing?) might be a red herring and may have been there before even while things were working. As you can see there is virtually no output despite-vv. All I did was on a clean Raspberry Pi OS Buster checkout perform anapt upgrade.The following both work nicely after the upgrade:
The latter is a (poor) replacement for the functionality that I'm missing with v4l2rtspserver not working, as I can access the stream from VLC with
tcp/h264://<ip>:3333