http://library.forum.nokia.com/index.jsp?topic=/Flash_Lite_Developers_Library/GUID-8EFDF519-AB3B-4FAC-804B-8FDFD08F9968.html
Most of it should apply
Some basic keys are:
* reduce the use of filters
* reduce the detail of your bitmaps
* try not to rotate objects with filters on them
* reduce the amount of objects you have on the stage being animated
at once
* reduce the use of alpha effects
* reuse objects where possible instead of making new one, as each
object needs to be stored in memory
Taka Kojima wrote:
Alright, well my two cents is that the problem isn't what you think it
is, and here's why:
I build a lot of sites and the reason it's chugging is not anything to
do with streaming... if you truly do have a preloader, and it does
load in 100% before playing, it's not a streaming issue. It seems to
be a CPU issue.
If the computers with slower connections you are testing on are older
computers (which for some reason is usually the case) then it may seem
like it's the connection speed, where in fact it is the CPU chugging.
The idea that animating on the timeline is x amount slower than doing
it through code is a myth that's not true. It is true that you can
optimize some thing through code, but unless you're doing some crazy
animation stuff then that's likely not the issue either.
The proper solution: bring down the cpu usage, which isn't an exact
science you'll just have to futz around with things and use common
sense, such as using blank keyframes when things are off the stage,
making sure you aren't animating a lot of vectors (and if you are use
bitmap caching), etc.
- Taka
On Wed, Apr 1, 2009 at 2:27 PM, Karl DeSaulniers <k...@designdrumm.com> wrote:
Please excuse the auto correction of my email client. It doesn't always know
what I am trying to say. :p
That's preloaders not preliaders
Sent from losPhone
On Apr 1, 2009, at 4:17 PM, Karl DeSaulniers <k...@designdrumm.com> wrote:
Yes you are correct about the preliaders and the different versions of
sites per connection speed.
Here is what I am experiencing and why I am lookijng for this solution. I
have a preloader on my site and it preloads fine. But even with the preload
I still get a lag when it starts playing. There is no way I am building
three sites every time I make a site. So I wanted to have a streaming script
watch the stream and adjust accordingly so that there would be no lag. I
have been to many flash site that load significantly faster than mine and
they have more in them. Alas too a lot of my animations are animations and
not tween animations. I am not the best coder (as you can tell) so I am
relying on animation to suffice. This is not the best practice I know, but
bills need to be paid and I have no time to go back to school. I am self
taught and so the industry standards on how to do this, I have not been
introduced to. I don't mean to sound like the biggest idiot, but in AS I
guess I am. Thanks for your input on this. Everything helps.
Sent from losPhone
On Apr 1, 2009, at 3:51 PM, Taka Kojima <t...@gigafied.com> wrote:
Back to the original issue at hand. I think that is is definitely not
optimal to be relying upon somebody's connection speed/bandwidth to
determine fps and/or how to display content.
I believe that's why people use preloaders.
On Wed, Apr 1, 2009 at 1:03 PM, Anthony Pace <anthony.p...@utoronto.ca>
wrote:
Hello Taka,
I agree with you; as well, with regard to the swf, it would take a ton
of in
depth knowledge and understanding about its file structure, and how it
handles tweens, that I don't have right now, in order for me to say if
its
even possible.
Thanks.
Anthony Pace
Taka Kojima wrote:
I believe the standard way of handling this is to have three different
versions of your movie.
low, normal and high quality (how you down the file size is totally
dependent on you, could be dropping frames, could be lower rez,
whatever). Which one gets loaded in can be determined by connection
speed, I think this is pretty much the norm way of doing it, and while
Anthony's solution is good in theory, I think it would be too much of
a pain in the ars, not to mention a butt load of server-side
processing every time a user loads your site.
- Taka
On Wed, Apr 1, 2009 at 6:44 AM, Paul Andrews <p...@ipauland.com> wrote:
"default your mechanism"?
LOL "defeat your mechanism"?
Paul
----- Original Message ----- From: "Paul Andrews" <p...@ipauland.com>
To: "Flash Coders List" <flashcoders@chattyfig.figleaf.com>
Sent: Wednesday, April 01, 2009 1:36 PM
Subject: Re: [Flashcoders] FPS question
Karl,
Despite what has been suggested, this will still only have a chance
of
working work for some flash Movies written in a certain way. Many of
my
flash movies are only one frame, sometimes just a handful of frames,
so
your
attempt to smoothly run a high-bandwidth movie on a slow connection
would
fail for movies like mine - either because they load a lot of assets
at
a
particular frame, or because they load assets via code during the
movie.
Either or both of these scenarios would default your mechanism.
Maybe I have missed this somewhere - is a pre-loader out of the
question?
Paul
----- Original Message ----- From: "Karl DeSaulniers"
<k...@designdrumm.com>
To: "Flash Coders List" <flashcoders@chattyfig.figleaf.com>
Sent: Wednesday, April 01, 2009 9:22 AM
Subject: Re: [Flashcoders] FPS question
Anthony,
I am going to have to buy you a steak dinner for all the input you
have
given me. (unless your vegetarian, then make it a shiitake steak)
Your input is right on the money. ;)
You basically have said what I was trying to, but my lack of
terminology
and experience made it sound like some unfathomable procedure.
The only thing is your getting it backwards on how my movie was
going
to
play. Oh and I am talking about a Flash swf movie (not video
necessarily).
The theory about sending some sort of packets to the server and
bouncing
back what an how to play the swf is what this is really about now
that
I
have read your reply. Thanks. My theory was to set up a code to
read
the
stream of data coming in to the browser, interp. it, talk to the swf
and
play the swf faster (skipping frames as you suggested) if the
connection
was slow and playing at regular frame rate when the stream was
good.
Never
playing slow. That is exactly what I am trying to defeat. The
skipping
of
frames or increase in fps, which may produce the same, was to give
the
effect that nothing had happened when presented with a slow
connection.
But, I see what you are saying with combining with a server
language
to
implement it. Maybe coldfusion? I don't think that PHP could handle
that,
but, I know PEARL could. But I would like to see a flash server
engine
sometime in the near future. Something that launched and controlled
your
own applications for your website and/or a built in flash
database..
hello
Adobe!!! I wouldn't even mind a component for that... :P
Thanks again,
I think your suggestion has put me on the right path.. once again.
:)
Karl DeSaulniers
Design Drumm
http://designdrumm.com
On Apr 1, 2009, at 2:50 AM, Anthony Pace wrote:
Hi Karl,
The only way to make 30fps play consistently on a lower bandwidth
connection, would be to send a message to the server, telling it to
send the
stream at a reduced quality; thus, the size and quality of each
frame
would
be greatly reduced on a slow connection. Yet, if a pause is
acceptable,
creating a buffer for the content and playing the buffered
content,
while
waiting for new content to download and be placed in the buffer
for
later
playing, would be an option. Your suggestion, sounds like it
would
result
in you playing the stream in slow motion.
Another idea would be to tell the server to reduce the amount, or
"drop", the frames sent; yet, this would not be 30fps, as the fps
would
drop based on the users connection.
E.G. if 30 fps plays well on 300KB downstream, but the user can
only
download solidly at 100KB, you could only send approximately 1/3
(maybe
less to be safe) of the frames safely allocated for that second
while
ensuring no delays in matching frames to audio; therefore, frames
1..4..7..10..13..16..19..22..25..28.. would be sent per second out
of
the
regular 30fps. (I hope I am not missing something and sounding
stupid
here)
This is really just theory, and is easier to say than to put into
practise; yet, it is not so difficult to figure out, that you
couldn't pull
it off if you were somewhat decent with a server side language
like
php and
know how to manipulate files by searching for index of frame
identifying
start and end keys in the hex to flush out as video stream. When I
say it
sounds so easy; yet, making it stable enough not to crash a server
with
multiple simultaneous connections might be something different.
Now
that I
think of it, can php even handle this? or would a c module be
needed
to
make things run totally stable?
I know this won't really help other than to see why your logic is
off,
and maybe give you some ideas of how video is really transfered;
yet,
I
hope you can make use of it. I have worked a little, very little,
with
video in the past; thus, I am not an expert, so if anyone has any
ideas
that would make my statements look stupid, I hope he or she will
speak up.
Thanks,
Anthony Pace
Paul Andrews wrote:
How would you equate bandwidth with FPS?
Seems to me that a loading Movie will need to load different
assets
at
different times, so You may need 100K loaded at one frame
followed
by no
new assets until 200 frames later when 150K needs to be loaded
for a
particular frame.
How can you possibly balance the load?
Paul
----- Original Message ----- From: "Karl DeSaulniers"
<k...@designdrumm.com>
To: "Flash Coders List" <flashcoders@chattyfig.figleaf.com>
Sent: Tuesday, March 31, 2009 7:54 PM
Subject: Re: [Flashcoders] FPS question
Close. I am trying to basically see if I can control how fast my
movie
plays according to the type of stream it is receiving. If slow
on
bandwidth
play faster, if normal or high bandwidth play at normal fps. So
that when
their is low bandwidth while loading page, the user never knows
or
sees it.
No "lag" if you will.
Sent from losPhone
On Mar 31, 2009, at 1:24 PM, "Paul Andrews" <p...@ipauland.com>
wrote:
I'm pretty confused by your requested, so I've probably got
this
wrong.
You're trying to slow down a playing movie because it's not
streaming
it's content fast enough to play at the true frame rate?
Paul
----- Original Message ----- From: "Karl DeSaulniers"
<k...@designdrumm.com
To: "Flash Coders List"
<flashcoders@chattyfig.figleaf.com>
Sent: Tuesday, March 31, 2009 7:10 PM
Subject: Re: [Flashcoders] FPS question
Sorry I guess I was not clear on my first post, but I am
looking
to
find out how to ready how much stream I am getting and adjust
my
frame rate
of the movie (swf) accordingly. Main part of my question is to
figure out
how to get the stream info so to be able to adjust the FPS to
it.
Better??
Thanks for any input.
Anthony, thanks for the FPS link, that will come in handy.
BTW I am still coding in AS2 for this project.
Karl DeSaulniers
Design Drumm
http://designdrumm.com
On Mar 31, 2009, at 12:04 PM, Anthony Pace wrote:
Sorry I didn't respond earlier... passed out last night and
just
woke up.
http://www.flashperfection.com/tutorials/AS3-Dynamically-
Change-
The- Frame-Rate-09765.html
Should help you out.
Karl DeSaulniers wrote:
in this i mean movie = swf .
i am not necessarily asking about just a moviclip but the
whole
movie.
Hope that clarifies.
Karl DeSaulniers
Design Drumm
http://designdrumm.com
On Mar 30, 2009, at 8:47 PM, Anthony Pace wrote:
First you say swf, and yes, controlling the frame rate for
an
swf is doable; yet, then you say movie... do you mean movie
clip, or
stream?
Karl DeSaulniers wrote:
Ok here is a new one. Is there a way to control the way
your
swf plays according to the bandwidth it's getting?
For eg: control how fast FPS your movie plays according to
the
stream of info it's getting from the server? If the stream
is
low play fast
and if the stream is good then play regular fps?
All of this to simulate "no lag".
Karl
Sent from losPhone
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