LiveCode Forums.

Hello everyone!
This is my first post and I am very very new to programming but have made it pretty far via tutorials and such.
But now im stuck and need any assistance that could be given.

This programs purpose is to connecting to a IP camera and this program has to use ffmpeg/ffplay. (another player is not an option)

What I have so far works exactly as I need it to however when the video starts I cannot touch any other button on the app until the video is stopped.
If i do hit buttons while video is playing it seems to store what I hit in memory and will exectute once the video is stopped.
Note video is stopped by closing the video window.

This program is built on one stack. Is this my problem? Is it that I need to use some time of while-then statement.

Any help would be appricated.

Below is a sample of what the script is so far. other functions are the same but are used for recording or taking snapshots.

on mouseUp
answer "Video feed will begin shortly..Press OK to continue.."
put field "ipaddress" into IpAddress
put "C:/ff/bin/ffplay -i rtsp://" into Path
put ":8554/main" & space & "-ss" & space & "3" & space & "-x" & space & "640" & space & "-y" & space & "380" into MainPlay
put Path & IpAddress & MainPlay into tShellCommand
set the hideconsolewindows to true
put shell(tShellCommand)
end mouseUp

Shell is a blocking command as you have seen. There are a couple options. Since you're on windows you could use open process and interact with ffmpeg/ffplay, or if you don't need to get data back and just start the apps in question you could use launch.

something like:
In this case of course the document path would be your url.

Sturgis!
Thanks for the quick reply. Changing to Launch did the trick now I can click other buttons.
However another issue has popped up and if I can massage your brain for another tidbit of helpful data....

launch "rtsp://10.0.27.220:8554/main" with "c:/ff/bin/ffplay.exe" works but need to use data from field...

want to use:

launch "FfplayString" with "c:/ff/bin/ffplay.exe"

However it does not work?
Are fields not excepted?

put field "ipaddress" into IpAddress
put "rtsp://" into Path
put ":8554/main" into MainPlay
put Path & IpAddress & MainPlay into FfplayString

Again thank you sooooooo much for everyones help!
Al

Since your playstring is a variable, don't use quotes around it. If you do the variable wont' be evaluated, the engine will just think you're passing a string "FfplayString"

Also, you might look at the merge command to make some of this easier.

It looks like you will want to end up with an address like

rstp://ipaddress:8554/main

Since the only thing that is changing is the ipaddress you can store your full string into a variable so that it looks like this..

rstp://[[field "ipaddress"]]:8554/main

Then when you do your launch you can simply do

launch merge(myVariable) with "c:/ff/bin/ffplay.exe" and the current ip address will be merged in to take the place of field "ipaddress" items between [[ ]] are evaluated by the engine producing the final desired string.

Sturgis that worked!
Thanks so much for your help.
Al