LiveCode Forums.

Hi, Im trying to develop a little app for Mac OS X, that App just have a player control & two buttons, the idea is play an audio stream but I have a very mysterious problem.

Description of problem:

Scenario 1: I put the player control on the card, in the source (filename) fill with the url h t t p:// server/ file.m3u
In run mode press play on the player control & works perfect.

Scenario 2: I put a button and use this script to play the sound:
set the filename of player "Player" to "h t t p:// server/ file.m3u"
start player "Player" & works perfect, I can play the stream.

The problem begin when I save the changes or create the standalone file, in this moment some fail and don't play the audio stream.
I can play again the audio stream only if delete the player and put a new one. But if I save the changes or create the standalone file, fail again.

Any Idea?

*** Update ***
If I put in properties source the url again, and in run mode press play in the player control it works....

Hola Gerardo,

1. welcome to the forum!

2. No idea, that may be a QuickTIme problem.

Try this:
Set the filename(s) to empty on "opencard" and only
use a script to set the filename.

Also, set the filename to empty and wait a couple of millisecs
before setting the filename again to any other URL.

At least worth a try


Best

Klaus

Exists other way to play a stream on LiveCode without QT ?

The only way to make it works are creating and destroying the object at runtime:

if exists (player "Player") then
delete player "Player"
end if
create invisible player "Player"
set the filename of player "Player" to "h t t p:// server /file.m3u"
start player "Player"

But in the activity monitor the app are consuming 43% of CPU

I think this is insane, just one button and 6 lines of code 43% of CPU

i have the same problem. I created three buttons (Play,Stop and Choose)
Play button: Stop button: Choose button opens a standard dialogue to choose the file and then put the result into "fileName" property of player
The problem is: After start playing my stack doesn't responds on any actions: pushing buttons or something other. It looks like CPU overload, but in Activity Monitor i have just 6.2% User CPU load.
Why does the app not responds during play video and what am i gonna do?

What platform?
What version of LC?
What version of QuickTIme, if at all?

Mac OS X 10.7.5. LiveCode 7.1.0
Quicktime Version 10.1 (501.29)

may be i should try the same app on Windows?

Livecode >= 7 will automatically > set the DONTUSEQT to TRUE because it will use the new AVFoundation framework.
But I'm not sure if AVF is already built into OS X 10.7.5?

Did you set DONTUSEQT back to FALSE maybe on PREOPENSTACK?

And yes, checking the same app in WIndows might help...

in Windows it doesn't play at all. I'll try to set dontuseqt to false

Unfortunately, nothing changes(((( when i set dontuseqt to false

Is QuickTIme installed on the Win machine?

I forgot that you are using LC 7.1, new in this version: "dontuseqt" is a PROPERTY of a player object
and can be set for each player individually, means one player can use QT and another one the newer AVFoundation
OS X only, of course.

Did you set this for your player?

DONTUSEQT isn't a property of player!!!!!!

Sorry, did not work with 7.1 yet, since this is an early Developer Release!

I may have misunderstood this, but I could have sworn I have read this somewhere
on the mailing list or Release notes.

i've tried this on practice and find out that Player doesn't have such property!!!!