B4J Question jShell nohup under Windows

[peacemaker]

Hi, All

How to run console programs under Windows for endless running ? Say, ffmpeg.

 

[peacemaker]

start /min ffmpeg -rtsp_transport tcp -i rtsp://192.168.1.168:554/ch01/0 -r 3 -vsync 1 -qscale 1 -frames:v 50 -f image2 image_%03d.jpg

Such manual start works OK under Windows (in a minimized console window), and ffmpeg makes 3 pictures per second, up to 50 pcs (total files qty), but ... how to correctly start it by jShell ?

 

[teddybear]

Create a batch file then jShell runs it

 

[Magma]

Such manual start works OK under Windows (in a minimized console window), and ffmpeg makes 3 pictures per second, up to 50 pcs (total files qty), but ... how to correctly start it by jShell ?

check my "RECDesk" free source code...

RECdesk - Screen Recorder/Video Capture/Grabber

RECdesk - A simple and solid "utility" to record your Windows Desktop. The whole idea is not mine - there are thousands of those utilities... like ShareX (actually I liked this a lot)... but i think having my utility - you will forget all these.... sometimes simple is better.. Is a very good...

www.b4x.com

It is also has the right way quitting from ffmpeg !!!

 

[peacemaker]

"RECDesk" free source code

But here i need to start not ffmpeg, but "start" Windows utility with parameters. jShell does not work if to put whole command line into the single string.

 

[tchart]

The correct way is to run it as a service

Better Windows Services (for B4J)

There are many threads on the fourm regarding Windows Services e.g. https://www.b4x.com/android/forum/threads/java-as-windows-service.65741/#content For many years Ive used "JavaService" but this is old, hasnt been updated for years and while robust isn't that friendly to set up. To be fair to...

www.b4x.com

 

[Magma]

But here i need to start not ffmpeg, but "start" Windows utility with parameters. jShell does not work if to put whole command line into the single string.

Why can't understand what exactly you want?

Sorry may be ... my poor English again..

...May be need to add quotes... also see the InitializeDoNotHandleQuotes...

Hmm... Run(-1)

...and another question... if you run manually the utility ...you want is it looping? Running forever?...

If not.. you can put it into a batch file that in the end will run itself.. calling bat again (simple)

But if the utility is ffmpeg has loop parameters...

Other way is to see or wait jshell to end (wait for) and loop it..

Hope helped you

 

[teddybear]

Create a batch file then jShell runs it

start /min ffmpeg -rtsp_transport tcp -i rtsp://192.168.1.168:554/ch01/0 -r 3 -vsync 1 -qscale 1 -frames:v 50 -f image2 image_%03d.jpg

Add it into batch file, such as doit.bat and put it to Objects folder

then do

shl.Initialize("shl", "doit.bat",  null)
shl.Run(-1)

Doesn't it work?

 

[peacemaker]

So, thanks to all here. I have found that it's too many differences for jShell under Windows and Linux for my needs.
And decided to debug the code directly under Linux target machine - no use to debug under Windows and later it does not work under target Linux.
Thanks all again.