Hello Pierre,
First, may I apologize for not responding sooner? I just finished cleaning
up from a crash while testing Movie.qtz .
As you probably read, Tim Clark asked the list for help with a memory leak.
I am attaching the code and movie that he attempted to post to the list and
later forwarded to me.
I am seeing the same symptoms with Movie.qtz .
Using ObjectAlloc set to show bytes after Mark, I opened Quartz Composer and
Movie.qtz. After allowing the composition to play for a minute or so, I
clicked Mark and noted the time. I returned 71 minutes later and noted 8624
additional current bytes were allocated. After another hour, I noted about
16000 additional bytes since clicking Mark. A few hours later, ObjectAlloc
crashed.
I am somewhat confused. While I believe there is a memory leak, I think
something else crashed ObjectAlloc. The leak appears to be 121 bytes per
minute. At that rate, the leak should take several million minutes to crash
the computer. It is likely that the crash was related to an almost full root
hard drive (which I have just cleaned out).
I do not yet understand your testing methodology using MallocStackLogging,
but I am reading about it. I have the malloc man page and 'Enabling the
Malloc Debugging Features' so I will ask if I have questions. When I
understand your tests, I will try to repeat them.
Thank you for your time.
Best regards,
Tom Bernard
email@hidden
on 6/27/05 11:10 AM, Pierre-Olivier Latour <email@hidden> wrote:
>> I do not see the leak in your application. I do see the leak
>> whenever a
>> composition runs that uses an Image With Movie patch. I see that
>> leak both
>> when your application loads the composition and when Quartz
>> Composer loads
>> the composition. 1200 - 1500 bytes/minute are leaked.
>>
>> When I run compositions without Image With Movie, either with your
>> application or with Quartz Composer, I do not see the leak.
>
> I attached a composition that plays the Mac intro movie on a
> billboard - I don't see any leak:
>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: Movie.qtz
> Type: application/x-quartzcomposer
> Size: 1322 bytes
> Desc: not available
> Url :
> http://lists.apple.com/pipermail/quartzcomposer-dev/attachments/20050627/81318
> 6e8/Movie.bin
> -------------- next part --------------
>
> [G4Book:MacOS] setenv MallocStackLogging 1
> [G4Book:MacOS] /Developer/Applications/Graphics\ Tools/Quartz\
> Composer.app/Contents/MacOS/Quartz\ Composer &
> [1] 5971
> [G4Book:MacOS] (5971) malloc: recording stacks using standard recorder
>
> [G4Book:MacOS] leaks 5971
> (5974) malloc: recording stacks using standard recorder
> Process 5971: 35650 nodes malloced for 7710 KB
> Process 5971: 0 leaks for 0 total leaked bytes.
>
>
> can you reproduce? This movie is JPEG encoded and the leak may depend
> on the movie encoding type, what kind of movies are you using?
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