RTSP and RPi Bookworm

[Nottub]

Sadly it seems that VLC on the RPi does not support RTSP, when using Bookworm os.

My old RPi (Buster) uses the RTSP stream in VLC to create my snapshots of the current weather. That still works ok (but very processor intensive).

With my new RPi (Bookworm) I’ll have to work something out to get my Hikvision camera images onto my IONOS host.

The inbuilt snapshot facility of the Hikvision timestamps every image, so preventing linking to my web page.

Just a heads up if anyone is in the same boat.

V4 running well on the new RPi though.


Martyn

[Nossie]

I found this on an unrelated forum

not including RTSP was a decision for Debian only - so if you remove VLC that's included in bookworm - you can install it via snap and it should work??

There was a Debian policy decision that will cause Debian VLC build to not stream rtsp, you have to use vlc as a flat-pack or snap to get around that if you plan on using VLC to test your cameras.

[ConligWX]

Use something like ffmpeg's "convert" That's what I do. Grabs a snapshot adds layers and text etc then posts to my website.

I can post the script if needed.

[Nottub]

I found this on an unrelated forum

not including RTSP was a decision for Debian only - so if you remove VLC that's included in bookworm - you can install it via snap and it should work??

There was a Debian policy decision that will cause Debian VLC build to not stream rtsp, you have to use vlc as a flat-pack or snap to get around that if you plan on using VLC to test your cameras.

Thanks Ian, looks like a good (easy) option.

Martyn

[Nottub]

Use something like ffmpeg's "convert" That's what I do. Grabs a snapshot adds layers and text etc then posts to my website.

I can post the script if needed.

Now that sounds interesting. I’m not very technical on coding matters, but would welcome an alternative to consider.

Thanks for the offer.

Martyn

[ConligWX]

so I use ffmpeg to grab the screen capture of an rtsp feed and save it to a jpg image.

I process a camdataT.txt with cumulusmx and save to camdata.txt (used to show values on the final image)

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Temp: <#temp>°C • Pressure: <#press> hPa • Hum: <#hum>% • Wind: <#wspeed> mph <#currentwdir> • Rain: <#rfall>mm • UV Index: <#UV> • SolarRad: <#SolarRad> W/m² • CloudBase: <#cloudbase>

I then use imagemagick's "convert" to add overlays and text to top and bottom of image and save it to another jpg that is used on my website.

this script is run every minute and updated text applied too to final image. you dont have to run every minute but I do. thats just called using a cronjob.

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*/1 * * * * /share/scripts/webcam.sh

webcam.sh file below. all files, paths, IPs etc are fictitious

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#!/bin/sh
#
#set variable yday to be like 20100208
#
#tday=$(date -d today +%Y%m%d%H%M%S);
#stamp=$(date '+DATE: %d/%m/%y%nTIME:%H:%M:%S');
tday=$(date +%Y%m%d%H%M%S);
#stamp=$(date +%Y%m%d);

# get weather image
/opt/ffmpeg/ffmpeg -rtsp_transport tcp -i rtsps://192.168.1.22:5678/hYHihPWuoJzS5W0A?enableSrtp -vf scale=2688:1512 -frames 1 /share/weather/sky1.jpg -y;

# next 2 lines add weather info
testdata="$(/bin/cat /share/wx/camdata.txt)";
testdata1=`date +"%A %d-%b-%Y %R %Z"`;

# use Convert to add WX values and date etc to the image
/share/convert -fill RoyalBlue4 -draw "fill-opacity 0.4 rectangle 0 0 2688 30" \
-fill red -draw "fill-opacity 0.6 rectangle 0 31 2688 33" \
-fill RoyalBlue4 -draw "fill-opacity 0.7 rectangle 0 1482 2688 1512" \
-fill red -draw "fill-opacity 0.6 rectangle 0 1479 2688 1481" \
-fill white -pointsize 22 -font /share/ZFS21_DATA/db_backup/script/arialbold.ttf -draw "text 10,20 'Conlig Weather Station:  $testdata1 • www.conligwx.org'" \
-fill yellow -pointsize 22 -draw "text 10,1507 '$testdata'" /share/wx/sky1.jpg  /share/wx/skywebcam.jpg;

# convert image.jpg to 150kb for WUnderground
/share/convert /share/wx/skywebcam.jpg -define jpeg:extent=150kb /share/wx/image.jpg;

image is available 24/7 but its night time here so image is not worth showing at present. I'll post an image tomorrow of the final image.

you can also use ffmpeg to create a timelapse video is your want to with another script I have.

[Nottub]

so I use ffmpeg to grab the screen capture of an rtsp feed and save it to a jpg image.

I process a camdataT.txt with cumulusmx and save to camdata.txt (used to show values on the final image)

Code: Select all

Temp: <#temp>°C • Pressure: <#press> hPa • Hum: <#hum>% • Wind: <#wspeed> mph <#currentwdir> • Rain: <#rfall>mm • UV Index: <#UV> • SolarRad: <#SolarRad> W/m² • CloudBase: <#cloudbase>

I then use imagemagick's "convert" to add overlays and text to top and bottom of image and save it to another jpg that is used on my website.

this script is run every minute and updated text applied too to final image. you dont have to run every minute but I do. thats just called using a cronjob.

Code: Select all

*/1 * * * * /share/scripts/webcam.sh

webcam.sh file below. all files, paths, IPs etc are fictitious

Code: Select all

#!/bin/sh
#
#set variable yday to be like 20100208
#
#tday=$(date -d today +%Y%m%d%H%M%S);
#stamp=$(date '+DATE: %d/%m/%y%nTIME:%H:%M:%S');
tday=$(date +%Y%m%d%H%M%S);
#stamp=$(date +%Y%m%d);

# get weather image
/opt/ffmpeg/ffmpeg -rtsp_transport tcp -i rtsps://192.168.1.22:5678/hYHihPWuoJzS5W0A?enableSrtp -vf scale=2688:1512 -frames 1 /share/weather/sky1.jpg -y;

# next 2 lines add weather info
testdata="$(/bin/cat /share/wx/camdata.txt)";
testdata1=`date +"%A %d-%b-%Y %R %Z"`;

# use Convert to add WX values and date etc to the image
/share/convert -fill RoyalBlue4 -draw "fill-opacity 0.4 rectangle 0 0 2688 30" \
-fill red -draw "fill-opacity 0.6 rectangle 0 31 2688 33" \
-fill RoyalBlue4 -draw "fill-opacity 0.7 rectangle 0 1482 2688 1512" \
-fill red -draw "fill-opacity 0.6 rectangle 0 1479 2688 1481" \
-fill white -pointsize 22 -font /share/ZFS21_DATA/db_backup/script/arialbold.ttf -draw "text 10,20 'Conlig Weather Station:  $testdata1 • www.conligwx.org'" \
-fill yellow -pointsize 22 -draw "text 10,1507 '$testdata'" /share/wx/sky1.jpg  /share/wx/skywebcam.jpg;

# convert image.jpg to 150kb for WUnderground
/share/convert /share/wx/skywebcam.jpg -define jpeg:extent=150kb /share/wx/image.jpg;

image is available 24/7 but its night time here so image is not worth showing at present. I'll post an image tomorrow of the final image.

you can also use ffmpeg to create a timelapse video is your want to with another script I have.

Thanks for this. When I get time over the next couple of days I’ll see if I can get head round the code, and where to put it on the RPi.

Many thanks
Martyn

[Nottub]

Presume I need to download ffmpeg to trial the code ?

Starting to amend the code for my setup. I assume this looks right so far?:

This to take the snapshot from my webcam (rtsp://admin:***************.***.*.**/streaming/channels/101) and send the image (still called sky1.jpg) to my desktop.

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/opt/ffmpeg/ffmpeg -rtsp_transport tcp -i rtsp://admin:***************.***.*.**/streaming/channels/101 -vf scale=2688:1512 -frames 1 C:\Users\Desktop\sky1.jpg -y;

Thanks

Martyn

[ConligWX]

yes you'll need to install ffmpeg unless it is already installed.

as to the path, yes that looks ok, though dependant on where ffmpeg is installed/symlinked.

[Nottub]

yes you'll need to install ffmpeg unless it is already installed.

as to the path, yes that looks ok, though dependant on where ffmpeg is installed/symlinked.

It appears that ‘ffmpeg’ is installed in RPi ‘Bookworm’.

However the code suggests that there should be a directory ‘ffmpeg’, within which there should be a file ‘ffmpeg’ (I presume that’s what’s inferred). Sadly that’s not the case. I have ‘/usr/bin/ffmpeg’ (file), ‘/usr/share/ffmpeg’ (directory but with no simple ‘ffmpeg’ file inside it), and ‘usr/share/man/man1/ffmpeg.1.gz’.

So when I try ‘/usr/bin/ffmpeg/ffmpeg (with the rest of the script for my webcam I get ‘Not a directory’. Understandable as there is no file in that location. Tried various alternatives but to no avail.

Will try again soon.

Martyn

[ConligWX]

try using the find command.

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 find / -name ffmpeg

if ffmpeg is a file here (/usr/bin/ffmpeg)

then use that as the command line

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/usr/bin/ffmpeg

[ConligWX]

here's my end result.

Screenshot 2024-04-18 192820.png

[Nottub]

Running the command as sudo:

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pi2@blackberrypi:~ $ sudo find / -name ffmpeg
/usr/share/doc/ffmpeg
/usr/share/ffmpeg
/usr/share/lintian/overrides/ffmpeg
/usr/bin/ffmpeg
find: ‘/home/pi2/thinclient_drives’: Permission denied
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/1000/doc’: Permission denied
pi2@blackberrypi:~ $ 

[Nottub]

here's my end result.

Screenshot 2024-04-18 192820.png

Hmm nice, just what I'd like to do.

Thanks for your time

Martyn

[ConligWX]

Running the command as sudo:

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pi2@blackberrypi:~ $ sudo find / -name ffmpeg
/usr/share/doc/ffmpeg
/usr/share/ffmpeg
/usr/share/lintian/overrides/ffmpeg
/usr/bin/ffmpeg
find: ‘/home/pi2/thinclient_drives’: Permission denied
find: ‘/run/user/1000/gvfs’: Permission denied
find: ‘/run/user/1000/doc’: Permission denied
pi2@blackberrypi:~ $ 

so if you type in the following command what do you get?

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/usr/bin/ffmpeg -version

if you get version information then that's probably the one we can use. then next is to check if imagemagick's "convert" is available to use on your OS.

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find / -name convert

if you find a result type in the path to it and with convert -version to see what it says, heres an example on mine:

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[~] # /usr/local/sbin/convert -version
Version: ImageMagick 6.9.4-8 Q16 x86_64 2024-02-20 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2016 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC
Delegates (built-in): bzlib jng jpeg png tiff