If your application is hung, there are several ways to find out
what's going on:
1) From a Terminal window, get the pid of the
process (from 'ps -ax') and then run:
sample 'pid' 10 10
This will write a file in /tmp
with a trace of what the process was doing for the last
10 seconds. See 'man
sample'.
2) Use tools in /Developer/Applications/Performance
Tools (eg, Sampler, Spin Control, Thread Viewer)
3) Run gdb and attach to the process ('attach pid' -
get its pid from ps or try attaching by
exectuable name with
tab-completion). You can use 't a a bt' to get a stack trace of
all the
threads.
If you determine that your app is hung inside of QuickTime, and
you've convinced yourself that your use of the QT APIs was valid, then
file a bug with your sample code, media, and instructions on how to
reproduce.
Daniel Steinberg
QuickTime Engineering
At 11:30 AM +0800 5/24/06, jasonlau wrote:
We're
trying to export a MOV file to MP4 using the ConvertMovieToFile() API
but it seems to hang unpredictably.
My
colleague, Ashok posted this issue to QT API mailing list before
sorry for repeating
Is there any
suggestions on:
1, how to
debug this API hanging issue ? what logs/info to collect or look at
?
2, any ideas
why the API would hang ?
3, any
alternative APIs to use (instead of ConvertMovieToFile())
?
We're
really blocked here would appreciate any help.
Thanks
!
Regards,
Jason Lau
Jason Lau
Accounts Delivery Manager (Program Management)
+65 6822 8689 tel
+65 6822 8693 fax
muvee
Technologies Pte Ltd
Instant Personal Video - transform your video and pictures
into great-looking "muvees" in hundreds of styles...
completely
automatically.
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