[PD] pd / crash problem

henning m. lederer | visual communication & animation henning at led-r-r.net
Mon Jun 14 09:15:57 CEST 2010

With the help of my tutor Phil Archer I have coded an endless- loop 
pd-patch which is playing randomly a movie clip out of 50 different 
Quicktime-films, selecting a new random clip one after each other, 
playing the film fullscreen. The coding is working very well (attached 
picture) but there is a problem with the stability: the application is 
regularly crashing after about 4 to 5 minutes.

I don’t know the reason, but I had a look at the activity window and 
there I could watch this: pd itself is increasing the physical 
storage... starting at about 70mb and getting bigger and bigger a new 
clip is chosen. When it reaches about 210 - 220mb after 4 or 5 minutes, 
the app crashes.


The Report says:

Process: pd [504]
Identifier: pd
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: Pd-extended [501]

Date/Time: 2010-06-14 09:05:46.112 +0200
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6

Interval Since Last Report: 104758 sec
Crashes Since Last Report: 18
Per-App Crashes Since Last Report: 16
Anonymous UUID: DB66E35A-AF9A-41C8-AC29-6923433D8B95

Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000010
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 org.perian.Perian 0x188aa92c decode_nal_units + 1228


Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000010 ebx: 0x00000004 ecx: 0x00000000 edx: 0x00000010
edi: 0x1a8cc000 esi: 0x00000000 ebp: 0xbfffce18 esp: 0xbfffc800
ss: 0x0000001f efl: 0x00010246 eip: 0x188b792c cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
cr2: 0x00000010


...and loads of other stuff.

I am runninng this app on my Mac Book Pro: 3,06 GHz, Intel Core 2 Duo, 8 
GB 1067 MHz DDR3, Graphics: NVIDIA GeForce 9600M with Pd version 0.41.4, 
GEM: ver: 0.91.3 ‘tigital’

The Quicktime films are compressed with the animation codec, without 
sound, ratio: 1680 x 1050, playing fullscreen. But size-wise the biggest 
film is not more then 15mb; most of the films are less then 1mb.

Any ideas what the problem could be?

Thanks a lot and greetings from Germany,

/// henning m. lederer /// visual communication&  animation

/// master of digital arts /// diplom-designer [fh]

/// +44 (0)7551 960 327 (uk) /// +49 (0)179 572 38 13 (germany)

/// www.led-r-r.net /// henning at led-r-r.net

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