Roku Developer Program

Join our online forum to talk to Roku developers and fellow channel creators. Ask questions, share tips with the community, and find helpful resources.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
btpoole
Channel Surfer

Help With A Loop

For the sake of making something simple I decide to break some code up into its own function. Well, not getting the desired results. I have a channel that enters a loop, Function ChannelLoop as shown here with some lead in code removed that is not essential. The id value is set by the remote control. If the user select "OK", the procedure follow thru and enters the Function PlayLoop. I am passing the value of Id and msg to the PlayLoop as it is used in the function. When the Playloop is called, the id and msg is passed. The loop is entered, Step 1 passes, Step 2 passes. Instead of executing the line after Step 2, the code jumps to Step 6 and coninues printing Step 1, Step 2, Step 6 over and over. Oddly the stream loads and plays but the player is not shown on the screen because the value of m.status is never evaluated in the step after Step 2. What is suppose to happen is as the stream loads, if the msg.isStatusMessage() and msg.GetMessage() = "startup progress", the value of m.status is set, and the function m.paint is called. In this function m.status value decides on how the screen should look. Now, before breaking the code into functions, I had only one function, ChannelLoop. The code in PlayLoop was in the ChannelLoop function directly following m.player.Play(). Everything worked fine. Why did I break it out, thought it would be easier for future revisions. Can somebody take look and see if something is causing the code following Step 2 not to execute. Thanks a million.

	while true
msg = wait(0, m.port)
if msg <> invalid
if (msg.isRemoteKeyPressed())
id = msg.GetIndex()]
if id=6
?"ENTER PLAY LOOP"
cname=m.cname[index]
cstream=m.cstream[index]
HLSURL=cstream
m.player.SetContentList([{
Stream: { url: HLSURL }
StreamFormat: "hls"
SwitchingStrategy: "full-adaptation"
}])
m.player.Play()
m.status=PlayLoop(id,msg)

end if
end if
end if
end while



The Playloop function shown below.


Function PlayLoop(id,msg) As Object

while id <> 0
'msg = wait(0, m.port)
?"STEP 1"
if msg <> invalid
?"STEP 2"
if msg.isStatusMessage() and msg.GetMessage() = "startup progress"
?"STEP 3"
m.paused = false
progress% = msg.GetIndex() / 10
if m.progress <> progress%
?"STEP 4"
m.status=2
m.progress = progress%
m.paint()
end if
'Playback progress (in seconds):
else if msg.isPlaybackPosition()
?"STEP 5"
if id= 2 or id=3
m.setup = SetupFramedCanvas
?"SETUP MADE. . ."
m.paint = PaintFramedCanvas
?"PAINT MADE. . ."
rect = m.layout.right
?"RECT MADE. . ."
m.status=3
exit while
else
m.status=2
m.position = msg.GetIndex()
m.paint()
end if

else if msg.isRemoteKeyPressed()
?"STEP 6"
id=msg.GetIndex()
print "Remote button pressed: " + id.tostr()

End if
End if
end while







0 Kudos
2 REPLIES 2
belltown
Roku Guru

Re: Help With A Loop

Remove the comment from this statement in PlayLoop:

'msg = wait(0, m.port)
0 Kudos
btpoole
Channel Surfer

Re: Help With A Loop

Thank you , seems to be the simple things that causes the biggest problems.
0 Kudos
Need Assistance?
Welcome to the Roku Community! Feel free to search our Community for answers or post your question to get help.

Become a Roku Streaming Expert!

Share your expertise, help fellow streamers, and unlock exclusive rewards as part of the Roku Community. Learn more.