Why?
Lets say i turn on the laptop and if i watch the video first thing.. fan will start blowing sirens...
Lets say i turn on the laptop and if i watch the video first thing.. fan will start blowing sirens...
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Fan turns on everytime i watch a online video.
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What model do you have?
On my UMB2.0, the fans will only ramp up after a while of flash video, and even then it depends on the bitrate.
The reason though that the fans spin up for online video is because Adobe Flash for Mac is pisspoor in terms of CPU useage--it uses a LOT more cycles than it needs to, so it makes more CPU heat, so the fans have to spin up.
Do you have anything like SMCFanControl installed? It sounds like your fans are responding to % CPU used as opposed to core diode temperature.
On my UMB2.0, the fans will only ramp up after a while of flash video, and even then it depends on the bitrate.
The reason though that the fans spin up for online video is because Adobe Flash for Mac is pisspoor in terms of CPU useage--it uses a LOT more cycles than it needs to, so it makes more CPU heat, so the fans have to spin up.
Do you have anything like SMCFanControl installed? It sounds like your fans are responding to % CPU used as opposed to core diode temperature.
I assume this is a Flash based video. Flash is well known to cause CPU usage spikes on OS X and as such cause the fans to kick into high gear. FYI the fans are always on and running if the computer is on, they are a very integral part of the cooling system. Under light usage the RPMs are just low enough that you can't hear the fans.
I was thinking the other day that why do iPhones/iPod touches play video so effortlessly on such a smaller amount of computing/processing power? Wouldn't Apple try to incorporate the same technology into the full version of Mac OS X?
Just a thought. Now everyone can jump at this and explain to me why I'm an idiot for thinking this.
Just a thought. Now everyone can jump at this and explain to me why I'm an idiot for thinking this.
I was thinking the other day that why do iPhones/iPod touches play video so effortlessly on such a smaller amount of computing/processing power? Wouldn't Apple try to incorporate the same technology into the full version of Mac OS X?
Just a thought. Now everyone can jump at this and explain to me why I'm an idiot for thinking this.
h.264 encoded video is far more decoding-efficient than Flash on OS X. Also, the entire case acts like a heatsink and aid in heat dissipation.
Also, iPhone video for instance is only 240-320 lines of resolution, whereas online Flash video can be 480p or 720p depending on the source.
Oh ok. That does make sense. I just thought OS X had trouble playing any .flv file.
It's not really an issue with OS X. It's more an issue with Adobe Flash player for OS X.
And just to clarify my previous post, all video on iPods/iPhones is h.264 encoded, even the YouTube channel. Those videos are specially re-encoded to h.264 for the iPhone/iPod Touch.
And just to clarify my previous post, all video on iPods/iPhones is h.264 encoded, even the YouTube channel. Those videos are specially re-encoded to h.264 for the iPhone/iPod Touch.
How about Youtube videos? are they flashed base too?...
Thanks for the info, really helps understanding it.
I think they are converted to flash, that is why uploading usually would take a while even for a small vid, which would also explain some videos getting lower quality even though they weren't so crappy. Like if I upload a video from photobooth it would be converted from whatever type it is to flash for youtube...
For the normal computer, yes, Youtube is flash video. For the iPhone/iPod Touch however, it's h.264 type video (iTunes type format in this case).
adobe and Nvidia are working on GPU acceleration of Flash content, which will help matters a lot:
http://www.neoseeker.com/news/10903-adobe-and-nvidia-partner-to-enable-flash-gpu-acceleration/
http://www.neoseeker.com/news/10903-adobe-and-nvidia-partner-to-enable-flash-gpu-acceleration/
Well on youtube atleast you have the option to find and play the QT movie insted of the flash movie so you can reduce the ammount the cpu need to work.. something i did all the time on my old Powerbook.
https://forums.macrumors.com/threads/475222/
(Cant say btw if the link in that tread still works because it is blocked by WebSense that we use at work)
https://forums.macrumors.com/threads/475222/
(Cant say btw if the link in that tread still works because it is blocked by WebSense that we use at work)
Technically it is not, stupid Adobe needs to get their Mac programming on the line.
oh yes totally agree - it needs to be fixed, but its a perfectly normal thing to happen in the current situation including the bad coding and whatnot. best get used to it because its not going to be fixed any time soon.