[MBS] Leak in QTGraphicsImporter (MBS Xojo Plugin Mailinglist archive)
|Re: [MBS] MIDI Destinations and External Devices - Ron Benditt|
|[MBS] Leak in QTGraphicsImporter - Mike D.|
|Re: [MBS] Leak in QTGraphicsImporter - Christian Schmitz|
|[MBS] Leak using picture.mask - Mike D.|
|[MBS] Leak in QTGraphicsImporter|
|Date: 24.04.03 20:47 (Thu, 24 Apr 2003 12:47:55 -0700)|
|From: Mike D.|
This code leaks about 220k of memory per run (about 2k per loop) when
used with an 812k (1600x450) jpeg image on Windows XP, MBS Plugin
3.2pr13, Quicktime 6.1.1.
dim i as integer
dim qt as QTGraphicsImporterMBS
dim r as IntegerRectMBS
if f <> nil then
for i = 1 to 100
qt = new QTGraphicsImporterMBS
r = new IntegerRectMBS
r.top = 0
r.left = 0
r.height = canvas2.height
r.width = canvas2.width
qt.currentBounds = r
qt.quality = &h400
p2 = qt.makePicture(canvas2.width,canvas2.height)
I belive it is the "qt.makePicture" line which leaks. Can you
investigate please? This is a show-stopper for me.
|Re: [MBS] Leak in QTGraphicsImporter|
|Date: 25.04.03 16:34 (Fri, 25 Apr 2003 17:34:51 +0200)|
|From: Christian Schmitz|
> This code leaks about 220k of memory per run (about 2k per loop) when
> used with an 812k (1600x450) jpeg image on Windows XP, MBS Plugin
> 3.2pr13, Quicktime 6.1.1.
> I belive it is the "qt.makePicture" line which leaks. Can you
> investigate please? This is a show-stopper for me.
I can't find one.
Can you check wether it's a RB object which is not released or something
else? The runtime object may tell you this.
(objectcount should not increase between the loops)
I made this project "Memory Leak tests" some time ago and when I try the
makepicture test, it leaks less than 20KB on 1000 runs.
On the first run, QuickTime loads some things which can be 200 K big, so
you may have a leak of 200 for the QuickTime properties and buffers on
the first run.
For the third time, the 1000 run test finished leaking 0 bytes, so on
the second run it may be that the memory allocation system needed some
more handles and increased one of the lists made for memory allocation
by 20 K?