I was just reviewing a team member's code on iOS 7 for reading the
CVPixelBuffer from a video frame, storing it in a UIImage and converting to
grayscale.
Was testing against 720p video in the iPad and was pretty surprised to see
memory leak faster than I've ever seen before, but only after
On Jun 4, 2014, at 12:24 , Alex Zavatone z...@mac.com wrote:
His response was Well, I was able to autorelease any offending bits within
the loop without a problem, what's the big deal?
I think the deeper problem is that a while loop of this kind in an
asynchronously executed block is a bit
On Jun 4, 2014, at 2:24 PM, Alex Zavatone wrote:
As it turned out, my coworker had created a dispatch_async thread to start
processing the video and within it, started at a framecount of 0, incremented
it within a while(true) loop and grabbed the frame every time there was a new
On Jun 4, 2014, at 4:07 PM, Ken Thomases wrote:
On Jun 4, 2014, at 2:24 PM, Alex Zavatone wrote:
As it turned out, my coworker had created a dispatch_async thread to start
processing the video and within it, started at a framecount of 0,
incremented it within a while(true) loop and
On Jun 4, 2014, at 4:02 PM, Quincey Morris wrote:
I think the deeper problem is that a while loop of this kind in an
asynchronously executed block is a bit of a code smell.
Exactly.
But I need to come up with an explanation of explain why that is a bad idea and
why it smells. I know it
On Jun 4, 2014, at 4:26 PM, Alex Zavatone wrote:
On Jun 4, 2014, at 4:07 PM, Ken Thomases wrote:
You have a misconception as illustrated in the above quotes. I think you
think of ARC as a garbage collector that needs idle time or for execution to
return to the frameworks in order to
On Jun 4, 2014, at 14:45 , Alex Zavatone z...@mac.com wrote:
But I need to come up with an explanation of explain why that is a bad idea
and why it smells
It smells because a computationally intensive while loop will stall the
dispatch queue that’s stuck on it.
If you’re programming with
Sweet. Thanks guys.
That's exactly what I needed to frame why this is bad to our former dot net guy.
Cheers.
On Jun 4, 2014, at 6:02 PM, Quincey Morris wrote:
On Jun 4, 2014, at 14:45 , Alex Zavatone z...@mac.com wrote:
But I need to come up with an explanation of explain why that is a
