How to access RTSP URL for H264 playback? #305

branpurn · 2023-03-05T20:55:14Z

branpurn
Mar 5, 2023

Using Docker, I am unable to identify the RTSP URL for H264

docker run --device=/dev/video0 -p 8554:8554 -it --restart=always mpromonet/v4l2rtspserver -H3040 -W3040 -F60

[NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:132
        HLS       http://172.17.0.3:8554/ts.m3u8
[NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:133
        MPEG-DASH http://172.17.0.3:8554/ts.mpdroot@ubuntu:/home/...#

Ex., on LAN, the device is 192.168.1.94,

Connection failed:
VLC could not connect to "192.168.1.94:8554".
Your input can't be opened:
VLC is unable to open the MRL 'rtsp://192.168.1.94:8554'. Check the log for details.
Connection failed:
VLC could not connect to "192.168.1.94:8554".
Your input can't be opened:
VLC is unable to open the MRL 'rtsp://192.168.1.94:8554'. Check the log for details.

Full output,

root@ubuntu:/home/...# docker run --device=/dev/video0 -p 8554:8554 -it mpromonet/v4l2rtspserver
log level:500

[NOTICE] /v4l2rtspserver/main.cpp:269
        Version: 0.3.7-25-g7dee1b8 live555 version:2023.01.19
[NOTICE] /v4l2rtspserver/src/V4l2RTSPServer.cpp:37
        Create V4L2 Source.../dev/video0
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:133
        driver:bm2835 mmal capabilities:85200005 mandatory:4000001
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:136
        /dev/video0 support capture
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:138
        /dev/video0 support read/write
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:139
        /dev/video0 support streaming
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:225
        /dev/video0:H264 size:1024x768 bufferSize:786432
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:246
        fps:1/25
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:247
        nbBuffer:1
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:49
        Device /dev/video0
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:73
VIDIOC_STREAMON: Invalid argument
        Device /dev/video0 nb buffer:10
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:141
        Device /dev/video0
[NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:132
        HLS       http://172.17.0.3:8554/ts.m3u8
[NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:133
        MPEG-DASH http://172.17.0.3:8554/ts.mpdroot@ubuntu:/home/...#

Even with --network host,

[NOTICE] /v4l2rtspserver/inc/V4l2RTSPServer.h:132
        HLS       http://192.168.1.94:8554/ts.m3u8

This is inaccessible even from another container on the same Pi with --network host

mpromonet · 2023-03-05T22:34:47Z

mpromonet
Mar 5, 2023
Maintainer

Hi,

I am not sure to understand, the default rtsp path is /unicast, then you should try vlc rtsp://192.168.1.94:8554/unicast

Best Regards,
Michel.

5 replies

branpurn Mar 5, 2023
Author

Thanks, I am sure I am not explaining adequately, were that I knew what "correct" looked like I would--

docker run --device=/dev/video0 --network host -it mpromonet/v4l2rtspserver -u ""
In VLC,
Your input can't be opened: VLC is unable to open the MRL 'rtsp://192.168.1.94:8554/unicast'. Check the log for details.

VLC is just for testing, as my next goal would be to put the RTSP link into Kerberos.io, which is running in another container presently also set --network host, and only supports URLs to H264 RTSP streams

Kerberos, when pointed to rtsp://192.168.1.94:8554/unicast, says Something went wrong while verifying the camera settings :dial tcp 192.168.1.94:8554: connect: connection refused

mpromonet Mar 5, 2023
Maintainer

If you are using docker run --device=/dev/video0 --network host -it mpromonet/v4l2rtspserver -u "" the RTSP url should be 'rtsp://192.168.1.94:8554/.
If you are using docker run --device=/dev/video0 --network host -it mpromonet/v4l2rtspserver the RTSP url should be 'rtsp://192.168.1.94:8554/unicast.

branpurn Mar 5, 2023
Author

I am trying combinations of both with no luck, and I am beginning to think Ubuntu Core is more trouble than it's worth

Is this Invalid argument indicative that the server isn't spawned?

[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:73
VIDIOC_STREAMON: Invalid argument
        Device /dev/video0 nb buffer:10

mpromonet Mar 5, 2023
Maintainer

This means somethings goes wrong openning the V4L2 device, increasing loglevel may helps to understand the reason.

branpurn Mar 6, 2023
Author

What's the loglevel parameter/etc., it's defaulted 500?

I thought I had loaded the driver already, (opensource V4L2 driver bcm2835-v4l2) but doing it again, the error changed to 'not permitted'

[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:73
VIDIOC_STREAMON: Operation not permitted
        Device /dev/video0 nb buffer:10

making me think this is an Ubuntu Core issue w/ sandboxing of Docker

Same behavior as --privileged

root@ubuntu:/home/...# docker run --device=/dev/video0 --privileged --network host -it mpromonet/v4l2rtspserver -u ""
log level:500

[NOTICE] /v4l2rtspserver/main.cpp:269
        Version: 0.3.7-25-g7dee1b8 live555 version:2023.01.19
[NOTICE] /v4l2rtspserver/src/V4l2RTSPServer.cpp:37
        Create V4L2 Source.../dev/video0
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:133
        driver:bm2835 mmal capabilities:85200005 mandatory:4000001
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:136
        /dev/video0 support capture
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:138
        /dev/video0 support read/write
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:139
        /dev/video0 support streaming
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:225
        /dev/video0:H264 size:1024x768 bufferSize:786432
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:246
        fps:1/25
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2Device.cpp:247
        nbBuffer:1
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:49
        Device /dev/video0
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:73
VIDIOC_STREAMON: Operation not permitted
        Device /dev/video0 nb buffer:10
[NOTICE] /v4l2rtspserver/libv4l2cpp/src/V4l2MmapDevice.cpp:141

There's an unofficial snap version, (https://snapcraft.io/v4l2rtspserver)

root@ubuntu:/home/...# snap services
Service                        Startup  Current   Notes
docker.dockerd                 enabled  active    -
v4l2rtspserver.v4l2rtspserver  enabled  inactive  -
root@ubuntu:/home/...# sudo snap start v4l2rtspserver
Started.
root@ubuntu:/home/...# snap services
Service                        Startup  Current   Notes
docker.dockerd                 enabled  active    -
v4l2rtspserver.v4l2rtspserver  enabled  inactive  -
root@ubuntu:/home/...# sudo snap start v4l2rtspserver -u ""
error: unknown flag `u'

but it can't take any flags and doesn't go 'up' after starting it...

but it's also promising for Ubuntu Core b/c it explicitly can be given camera permissions,

sudo snap connect v4l2rtspserver:camera

When executed manually, v4l2rtspserver.manual -- it has the same issue as the official Docker

[NOTICE] /build/v4l2rtspserver/parts/v4lserver/src/v4l2wrapper/src/V4l2MmapDevice.cpp:73
VIDIOC_STREAMON: Operation not permitted
        Device /dev/video0 nb buffer:10

Maijied · 2023-08-16T18:13:53Z

Maijied
Aug 16, 2023

My DVR system doesn't have rtsp support. Can I get rtsp access using this Link?

0 replies

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How to access RTSP URL for H264 playback? #305

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