DVDStudioPro Encoding stalls

Discussion in 'Mac Apps and Mac App Store' started by The Void, Feb 1, 2007.

  1. The Void macrumors regular

    The Void

    Joined:
    Oct 29, 2003
    #1
    I've made my project in DSP, tested it in the simulator, all fine. When I try to build/format it, it starts off ok, (straight to 14% complete) but then after a short while (somewhere around 22%), Activity Monitor reports that DSPX_EncoderServ and DSPX_AEncoderSer have stopped responding, and the encode slows to barely beyond a crawl. Activity Monitor also shows the CPU running at something like 50% Nice.

    I've used DSP before with no problem, on the same machine, so I'm not sure what the problem is. I'm using two anamorphic DV files, 7.4 & 8.8 GB as assets. PB 1.5GHz, 1 GB ram.

    I've tried restarts, repairing permissions, saving the project as a copy and using that instead, aborting the encode and trying again (several times), all to no avail. I googled and found one guy with the same problem, but no solution.

    I took a sample of DSPX_EncoderServ from Activity Monitor, in case that sheds any light for anyone (I haven't a clue):

    -------------
    Analysis of sampling pid 1789 every 10.000000 milliseconds
    Call graph:
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    2 pthread_cond_wait
    2 semaphore_wait_signal_trap
    2 semaphore_wait_signal_trap
    1 0x80bd8
    1 0x75f74
    1 0x71e04
    1 0x71e04
    2 0x7d424
    2 0x835b4
    2 0x835b4
    1 0x7d4c8
    1 0x7c6b0
    1 pthread_cond_wait
    1 semaphore_wait_signal_trap
    1 semaphore_wait_signal_trap
    47 0x828b8
    47 pthread_cond_wait
    47 semaphore_wait_signal_trap
    47 semaphore_wait_signal_trap

    Total number in stack (recursive counted multiple, when >=5):
    32 semaphore_wait_signal_trap
    31 pthread_cond_wait
    18 0x7c6b0
    10 _pthread_body
    9 CallComponent
    7 CallComponentFunctionCommon
    6 0x71d74
    6 0x906ac
    6 MPWaitOnQueue
    6 mach_msg
    6 mach_msg_trap
    5 0x1bd50
    5 0x1bd98

    Sort by top of stack, same collapsed (when >= 5):
    semaphore_wait_signal_trap 926
    mach_msg_trap 677
    semaphore_timedwait_signal_trap 441
    syscall_thread_switch 225
    0xaa3d0 8
    0x71d74 7
    __memcpy 6
    semaphore_signal_trap 6
    aio_suspend 5
    vVLD3_nextCodeWord 5
    Sample analysis of process 1789 written to file /dev/stdout
    Sampling process 1789 each 10 msecs 300 times
    ------------------

    Looks like 'semaphore_wait_signal_trap' might be the problem?

    Any suggestions would be greatly appreciated.

    The Void
    ...............
    Bobbed
     
  2. The Void thread starter macrumors regular

    The Void

    Joined:
    Oct 29, 2003
    #2
    I also tried trashing the preferences (duh!), running in a different user, and re-installing DVDSP. All to no avail.

    I've also noticed that while DSPX_EncoderServer seems content to plod along, the crawl to a standstill happens when DSPX_AEncoderServer suddenly drops to 0% CPU usage in Activity Monitor.

    Still none the wiser though....

    The Void
    ................
    Chocced out.
     
  3. SPG macrumors 65816

    SPG

    Joined:
    Jul 24, 2001
    Location:
    In the shadow of the Space Needle.
    #3
    I'll preface this by saying that I don't use DVDSP, though I am a professional DVD Author by training so maybe some of this will actually apply to your situation.
    When you have problems on the build the things you should look at are a bad file/bad file address or a lack of drive space.
    If you've been shuffling files around DVDSP might not have kept up and can't find one of 'em. Perhaps a file is bad, corrupt, out of spec? A massive encode spike could also crash a build.
    If your machine doesn't have enough drive space to process the whole project, that might be doing it too. Do you have 4.7 GB of free space? I don't know if DVDSP needs it, but I've heard of some pretty weird stuff from DVDSP users so who knows?
    Hope this is helpful, but like I said, I don't use DVDSP so I'm just applying experience from other apps.
     
  4. spicyapple macrumors 68000

    spicyapple

    Joined:
    Jul 20, 2006
    #4
    Is DVDSP encoding motion menus? I import assets encoded in Compressor and minimize the amount of compression done by DVDSP. I've always worked this way and have not had any of the encoding stalls you are experiencing.

    Do you have any third party hacks like Shapeshifter installed on your system?
     
  5. The Void thread starter macrumors regular

    The Void

    Joined:
    Oct 29, 2003
    #5
    Thanks for the replies, guys. [Wow, a typing hampster!]

    Drive space wasn't the issue, as all my assets were on a new external fw drive with 160GB+ free space. I don't *think* it was bad files, since Toast managed to encode from the same ones.

    I did have motion menus, so I switched to stills, and also turned on background encoding, and let DSP get on with creating all the m2vs, aifs & pars before trying anything else. (The two processes previously mentioned went to 'not responding' again, but the encodes carried on). When it had finished doing those (about 3.5-4 hours, but, fair enough), I tried to build/format, but instantly the whole system froze up, and forced me to restart. I then turned off background encoding and tried to build again - this time: SUCCESS!

    So, I finally got it sorted, but I'm not sure if Motion Menus or Background encoding was the key.

    Thanks for your help.

    Edit: Mainmenu, iClip, Quicksilver, Mousezoom, Sidetrack - are any of those really 'hacks'? I've not read of anyone having any major problems with those ones.
     

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