Re: [Flashcoders] changing video playback speed with timer listeners
A quick look on google looks promising:
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo
Paul
- Original Message -
From: "Carl Welch"
To: "Flash Coders List"
Sent: Monday, April 06, 2009 10:47 PM
Subject: [Flashcoders] changing video playback speed with timer listeners
Hi,
I need to build a function that changes the playback speed of a FLV. I am
trying to make it so every time you hit the "+" key the FLV plays a
little faster, and when you hit the "-" key, it plays a little slower.
From what I've read, there is nothing built in. Someone suggested
building a timer script to seek a frame forward or back. So, I've done
that, but when I hit the keys its just creating a new timer and not
killing the old on, leaving me with a bunch of timer firing off at
varying times. How can I "KILL" the timer so I can create a new one with
a new timerspeed?
any clues? thank you! My sorry looking code is below:
var myTimerActive:int = 0;
var videoSpeed:int = 5000;
var videoSpeedVAR:int = 10;
var timerTimes:int = 0;
// hitting + or - will call videoPlaybackTimer(fastslow)
function videoPlaybackTimer(fastslow) {
if(fastslow == "faster"){
videoSpeed = videoSpeed+videoSpeedVAR;
}else{
videoSpeed = videoSpeed-videoSpeedVAR;
}
videoSEEK.text = timerTimes+" / videoSpeed: "+videoSpeed;
var myTimer:Timer = new Timer(videoSpeed);
myTimer.addEventListener(TimerEvent.TIMER, timerHandler);
myTimerActive = 1;
myTimer.start();
timerTimes++
}
function timerHandler(event:TimerEvent):void {
stream.seek(stream.time+.1);
stream.pause();
}
--
Carl Welch
http://www.carlwelch.com
http://blog.jointjam.com
carlwelchdes...@gmail.com
805.403.4819
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Re: [Flashcoders] changing video playback speed with timer listeners
Hi,
If you remove the timer listener, stop the timer and make your timer
a variable outside your function, you can recreate a new one... The key
is removing the event listener before you "kill" the timer instance -
it's good practice, especially for AS3 :)
See the code below - it was not too bad!
I am not sure how easy it is to skip through the FLV - it looks
possible, but might end up looking funny - the problem being is that you
are trying to play an FLV, but also asking it to seek - you will need to
make sure that your "pause()" does not stop it from playing too.
Because of the encoding of FLV's using keyframes in inbetween frames,
you might end up with funny looking results, but it could work - don't know.
HTH
Glen
//Put your timer variable outside the function. If you are coding on a
frame in Flash, make sure you have a "stop()" at the end of the code.
var myTimer:Timer = null;
function videoPlaybackTimer(fastslow) {
if(fastslow == "faster"){
videoSpeed = videoSpeed+videoSpeedVAR;
}else{
videoSpeed = videoSpeed-videoSpeedVAR;
}
videoSEEK.text = timerTimes+" / videoSpeed: "+videoSpeed;
//Add a check to see if you have a timer already:
if(null != myTimer) {
myTimer.removeEventListener(TimerEvent.TIMER, timerHandler);
myTimer = null;
}
//Then you can safely create a new Timer and not worry about the old
one...
myTimer = new Timer(videoSpeed);
myTimer.addEventListener(TimerEvent.TIMER, timerHandler);
myTimerActive = 1;
myTimer.start();
timerTimes++
}
--
Glen Pike
01326 218440
www.glenpike.co.uk
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[Flashcoders] changing video playback speed with timer listeners
Hi,
I need to build a function that changes the playback speed of a FLV. I
am trying to make it so every time you hit the "+" key the FLV plays a
little faster, and when you hit the "-" key, it plays a little slower.
From what I've read, there is nothing built in. Someone suggested
building a timer script to seek a frame forward or back. So, I've done
that, but when I hit the keys its just creating a new timer and not
killing the old on, leaving me with a bunch of timer firing off at
varying times. How can I "KILL" the timer so I can create a new one
with a new timerspeed?
any clues? thank you! My sorry looking code is below:
var myTimerActive:int = 0;
var videoSpeed:int = 5000;
var videoSpeedVAR:int = 10;
var timerTimes:int = 0;
// hitting + or - will call videoPlaybackTimer(fastslow)
function videoPlaybackTimer(fastslow) {
if(fastslow == "faster"){
videoSpeed = videoSpeed+videoSpeedVAR;
}else{
videoSpeed = videoSpeed-videoSpeedVAR;
}
videoSEEK.text = timerTimes+" / videoSpeed: "+videoSpeed;
var myTimer:Timer = new Timer(videoSpeed);
myTimer.addEventListener(TimerEvent.TIMER, timerHandler);
myTimerActive = 1;
myTimer.start();
timerTimes++
}
function timerHandler(event:TimerEvent):void {
stream.seek(stream.time+.1);
stream.pause();
}
--
Carl Welch
http://www.carlwelch.com
http://blog.jointjam.com
carlwelchdes...@gmail.com
805.403.4819
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