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The RDKC Media Server is much more than a multi-format, multi-protocol server that delivers your media rich content across multiple screens and platforms. The RDK camera software runs on RPi-0/RPI-3 device. With this RTSP streaming we can able to play live streaming content in VLC player. This page dedicated to bringing up and validation of RMS functionality with RTSP streaming in RPI-0/RPI-3.
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Build
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and Flash Procedure
Refer below link to build camera image
Morty:
RDK-C Build Instruction for RPI-0
RDK-C Build Instruction for RPI-3 with Dunfell branch
Image Flash Procedure
Dunfell:
RDK-C rdk-next Yocto 3.1 dunfell build for Raspberrypi
Validation Procedure of RMS with RTSP streaming
STEP 1:
Add require SSID and PSK in /etc/wpa_supplicant.conf file in below format
network={
ssid="username"
psk="password"
}
| Code Block | ||||
|---|---|---|---|---|
| Code Block | ||||
| ||||
$ bzcat "Image Name" | sudo dd of="Device Name" bs=4M iflag=fullblock oflag=direct conv=fsync
Example:
bzcat rdk-generic-camera-image_default_20201127105606.rootfs.wic.bz2 | sudo dd of=/dev/sdc bs=4M iflag=fullblock oflag=direct conv=fsync
|
Validation Procedure of RMS with RTSP streaming
STEP 1:
Add require SSID and PSK in /etc/wpa_supplicant.conf file in below format
network={
ssid="username"
psk="password"
}
| |
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
network={
ssid="XXXX"
psk="YYYYYYYYY"
}
|
STEP 2:
Add below configuration in end of the /boot/config.txt file
dtoverlay=imx219
core_freq_min=250
| Code Block | ||||
|---|---|---|---|---|
| ||||
vi /boot/config.txt
dtoverlay=imx219
core_freq_min=250 |
STEP 3:
- RMS with RTSP validation using v4l2
Disable dtoverlay and minimum freq configuration in config.txt file
| Code Block | ||||
|---|---|---|---|---|
| ||||
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
network={
ssid="XXXX"
psk="YYYYYYYYY"
}
|
STEP 2:
Reboot the Target
After Reboot don't do step 1 and 2.
Note : Step 1 & 2 is only applicable for fresh target boot-up with new image.
STEP 3:
Modify needed resolution in rms configuration file
Supported Resolution:
SD:
Width - 640 , Height - 480
Width - 720 , Height - 576
HD:
Width - 1280 , Height - 720
FULL HD :
...
vi /boot/config.txt
#dtoverlay=imx219
#core_freq_min=250 |
Run mediastreamer binary with v4l2src configuration.
| Code Block | ||||
|---|---|---|---|---|
| ||||
vi /lib/rdk/startMST.sh
#Run mediastreamer binary in background
# 1. To validate streaming with v4l2 need to give "mediastreamer v4l2src &"
# 2. To validate streaming with libcamera need to give "mediastreamer libcamerasrc &"
# If we change 1 and 2, need to reboot the target and validate streaming.
mediastreamer v4l2src & |
2. RMS with RTSP validation using libcamera
Enable dtoverlay and minimum freq configuration in config.txt file
| Code Block | ||||
|---|---|---|---|---|
| ||||
vi /boot/config.txt
dtoverlay=imx219
core_freq_min=250 |
Run mediastreamer binary with libcamerasrc configuration.
Modify resolution in below configuration file
cd /usr/local/rms/bin
vi rms.conf
| Code Block | ||||
|---|---|---|---|---|
| ||||
RRSIP=XXX.XXX.XXX.XXX
RRSPORT=81
ROOMID=rpi0
RRSSSL=0
WIDTH=1280
HEIGHT=72 |
After resolution modification need to reboot the target.
Note: This step is not necessary,it is depends on your resolution validation.
STEP 4:
WiFi connection is must needed for RMS validation.
Check WiFi connection by using below command.
ifconfig
| Code Block | ||||
|---|---|---|---|---|
| ||||
vi /lib/rdk/startMST.sh
#Run mediastreamer binary in background
# 1. To validate streaming with v4l2 need to give "mediastreamer v4l2src &"
# 2. To validate streaming with libcamera need to give "mediastreamer libcamerasrc &"
# If we change 1 and 2, need to reboot the target and validate streaming.
mediastreamer libcamerasrc & |
STEP 4:
Reboot the Target
After Reboot don't do step 1 and 2.
Note : Step 1 & 2 is only applicable for fresh target boot-up with new image.
STEP 5:
Modify needed resolution in rms configuration file
Supported Resolution:
SD:
Width - 640 , Height - 480
Width - 720 , Height - 576
HD:
Width - 1280 , Height - 720
FULL HD :
Width - 1920 , Height - 1080
Modify resolution in below configuration file
cd /usr/local/rms/bin
vi rms.conf
| Code Block | ||||
|---|---|---|---|---|
| ||||
RRSIP=XXX.XXX.XXX.XXX
RRSPORT=81
ROOMID=rpi0
RRSSSL=0
WIDTH=1280
HEIGHT=72 |
After resolution modification need to reboot the target.
Note: This step is not necessary,it is depends on your resolution validation.
STEP 6:
WiFi connection is must needed for RMS validation.
Check WiFi connection by using below command.
ifconfig
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi3-rdk-camera:~# ifconfig eth0 Link encap:Ethernet HWaddr B8:27:EB:87:67:91 root@raspberrypi3-rdk-camera:~# ifconfig eth0 Link encap:Ethernet HWaddr B8:27:EB:87:67:91 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACKBROADCAST RUNNINGMULTICAST MTU:655361500 Metric:1 RX packets:898420 errors:0 dropped:0 overruns:0 frame:0 TX packets:898420 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:256397480 (240.40 MiBB) TX bytes:256397480 (240.40 MiBB) wlan0lo Link encap:EthernetLocal Loopback HWaddr B8:27:EB:D2:32:C4 inet addr:192127.1680.430.1461 Bcast:192.168.43.255 Mask:255.2550.2550.0 UP BROADCASTLOOPBACK RUNNING MULTICAST MTU:150065536 Metric:1 RX packets:4489842 errors:0 dropped:0 overruns:0 frame:0 TX packets:10389842 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:448425639748 (24.4.3 KiBMiB) TX bytes:1021625639748 (924.94 KiB) |
STEP 5:
check loaded module by using below command
lsmod
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi3-rdk-camera:~# lsmod ModuleMiB) wlan0 Link encap:Ethernet HWaddr B8:27:EB:D2:32:C4 Size Used by bcm2835_v4l2 inet addr:192.168.43.146 Bcast:192.168.43.255 Mask:255.255.255.0 40563 0 v4l2_common UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 4809 1 bcm2835_v4l2 videobuf2_vmalloc RX packets:44 errors:0 6264 1 bcm2835_v4l2 videobuf2_memopsdropped:0 overruns:0 frame:0 1528 1 videobuf2_vmalloc videobuf2_v4l2 12640 1 bcm2835_v4l2 videobuf2_coreTX packets:103 errors:0 dropped:0 overruns:0 carrier:0 27389 2 bcm2835_v4l2,videobuf2_v4l2 videodevcollisions:0 txqueuelen:1000 RX bytes:4484 (4.3 KiB) 154457 TX bytes:10216 (9.9 KiB) |
STEP 7:
check loaded module by using below command
lsmod
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi3-rdk-camera:~# lsmod Module4 v4l2_common,videobuf2_core,bcm2835_v4l2,videobuf2_v4l2 media 23307 1Size videodev brcmfmac Used by bcm2835_v4l2 40563 258239 0 brcmutilv4l2_common 75904809 1 brcmfmacbcm2835_v4l2 sndvideobuf2_bcm2835vmalloc 6264 1 bcm2835_v4l2 videobuf2_memops 21405 0 cfg80211 1528 1 videobuf2_vmalloc videobuf2_v4l2 49283612640 1 brcmfmacbcm2835_v4l2 sndvideobuf2_pcmcore 27389 2 bcm2835_v4l2,videobuf2_v4l2 videodev 79872 1 snd_bcm2835 rfkill 154457 4 v4l2_common,videobuf2_core,bcm2835_v4l2,videobuf2_v4l2 media 19936 3 cfg80211 snd_timer 23307 1 videodev brcmfmac 20294 1 snd_pcm snd 258239 0 brcmutil 529497590 3 snd_timer,1 brcmfmac snd_bcm2835,snd_pcm lirc_rpi 21405 0 cfg80211 6840 0 lirc_dev 492836 1 brcmfmac snd_pcm 7533 1 lirc_rpi uio_pdrv_genirq 3469 0 uio 8703 1 uio_pdrv_genirq fixed 2876 0 sch_fq_codel 9662 2 ipv6 384101 18 |
STEP 6:
check camera device there or not by using below command
79872 1 snd_bcm2835
rfkill 19936 3 cfg80211
snd_timer 20294 1 snd_pcm
snd 52949 3 snd_timer,snd_bcm2835,snd_pcm
lirc_rpi 6840 0
lirc_dev 7533 1 lirc_rpi
uio_pdrv_genirq 3469 0
uio 8703 1 uio_pdrv_genirq
fixed 2876 0
sch_fq_codel 9662 2
ipv6 384101 18
|
STEP 8:
check camera device there or not by using below command
ls /dev/video0
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi0-rdk-camera:~# ls /dev/video0
/dev/video0 |
STEP 9:
Need to stop below service file to validate gstreamer based live streaming
systemctl stop rms-launcher.service
systemctl stop pipewire-launcher.service
systemctl stop mst-launcher.service
Need to do below changes in config.lua file
vi /usr/local/rms/config/config.lua
| Code Block | ||||
|---|---|---|---|---|
| ||||
-
+ ]]--
-- RTSP
{
- ip="127.0.0.1",
+ ip="0.0.0.0",
port=5544,
protocol="inboundRtsp",
},
-
+ --[[ |
After stoping those service file, then we need to start/trigger below service and binaries.
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi3-rdk-camera:~# systemctl start mst-launcher |
To start RMS binary , We need to go cd /usr/local/rms/bin directoryls /dev/video0
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi0root@raspberrypi3-rdk-camera:~# ls /dev/video0 /dev/video0 |
STEP 7:
Check mediastreamer and rms binaries are running or not before RTSP streaming validation.
cd /usr/local/rms/bin/
root@raspberrypi3-rdk-camera:/usr/local/rms/bin# ./rdkcmediaserver ../config/config.lua & |
Need to check mediastreamer and RMS running status with below commandps -Af | grep media
| Code Block | ||||
|---|---|---|---|---|
| ||||
root@raspberrypi3-rdk-camera:~# ps -Af | grep media root 2396 197 1 1 13 1015:5730 ? 00:04:40 mediastreamer root 1007 00:00:00 mediastreamer v4l2src root 1 3 10:572555 ? 1613 30 15:31 pts/0 00:00:01:05 ./rdkcmediaserver ../config/config.lua root 109592574 19431613 0 1115:3231 ttyS0pts/0 00:00:00 grep media |
STEP 810:
Enter into the Telnet console with telnet command
...
| Code Block | ||||
|---|---|---|---|---|
| ||||
listconfig
Command entered successfully!
Run-time configuration
dash: []
hds: []
hls: []
metalistener: []
mss: []
process: []
pull:
--
configId: 1
localStreamName: stream2
status:
current:
description: Streaming
uniqueStreamId: 1
uri: sercom://0
push: []
record: []
webrtc: [] |
STEP 911:
At that same telnet console,need to give the below command for RTSP streaming
pushStream uri=rtsp://camera_ip:5544 localStreamName=stream2
Example:
pushStream uri=rtsp://192.168.43.146:5544 localStreamName=stream2
| Code Block | ||||
|---|---|---|---|---|
| ||||
pushStream uri=rtsp://192.168.43.146:5544 localStreamName=stream2
Command entered successfully!
Local stream stream2 enqueued for pushing to rtsp://192.168.43.146:5544 as stream2
configId: 4
forceTcp: false
keepAlive: true
localStreamName: stream2
targetStreamName: stream2
targetStreamType: live
targetUri:
fullUri: rtsp://192.168.43.146:5544
port: 5544
scheme: rtsp |
STEP 10:
On VLC player, for RTSP streaming
need to enter media → Open Network Stream option and then give rtsp URL to play streaming content in VLC
Example :rtsp://192.168.43.146:5544/stream2
We can able to see the live streaming content on VLC Player.
( OR )
On PC, Able to play the camera live streaming content with the below gstreamer pipeline,before trying this pipeline we should install gstreamer specific packages.
gst-launch-1.0 rtspsrc location=rtsp://camera_ip:5544/stream2 ! rtph264depay name=demux ! h264parse ! avdec_h264 ! videoconvert ! autovideosink
Example:
...
port: 5544
scheme: rtsp |
STEP 12:
On VLC player, for RTSP streaming
need to enter media → Open Network Stream option and then give rtsp URL to play streaming content in VLC
Example :rtsp://192.168.43.146:5544/stream2
We can able to see the live streaming content on VLC Player.
Note: VLC player available PC and RPI target should run in same network.
Limitations
- RMS validation with libcamera works only with SD resolution.
- Observed 2 to 3 sec's of glitches in RMS with RTSP validation using both v4l2 and libcamera
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