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Qmaster/Matrox Compress HD conflict?
Hi everyone,
My gear:
MacPro Quad Core Intel Xeon 2.66 GHz
16GB RAM
OSX 10.6.3
FCP 7.0.2
Matrox CompressHD with up to date firmware
My problem:
We need to export to various formats (MPEG2/AC3 for DVDS, MPEG4, H.264 mainly) and to simplify things for the editors I have set up a droplet that enables them to draw up the “shopping list” of exports.
Up until recently I was not using Qmaster and things were ok, faster than with the old hardware and much faster H.264 since installing the Matrox card.
Yesterday I setup Qmaster to 6 instances and I am finding out that compression times for MPEG2,AC3 and MPEG4 are 3 times faster. But Qmaster does not want to play with the H.264 and fails on that.
I am thinking that it conflicts with the hardware accelerator card because when I use “This computer” (i.e. not the virtual cluster), things are fine. But this obliges me to do things in two steps and treat H.264 separately.
Has anyone found a way to have Qmaster play nicely with the Matrox hardware?
The Status info in Batch Monitor is:
Name: PHILIPPINES-CRF01057 W1_EN_ProRes-ICRC_H.264_1280x720p_25fps.mov
Time Elapsed: 0:05:08
Time Remaining: 0:00:28
Percent Complete: 91
Status: Failed – 3x HOST [Edit-2s-Mac-Pro.local] NSException raised by ‘NSGenericException’, reason = ‘Error InsertMediaIntoTrack (video): Unknown error: -2014’Thank you for your help
patrice
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2 Replies
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CompressHD encodes .h264 via hardware using a dedicated onboard chipset, it does not use the multithreaded processor cores as in software encoding such as MPEG and AC3. So, it balks when you direct it to use Qmaster, because that directs it to ignore itself and to improperly encode via all eight processors.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
EPK Colorist – UP IN THE AIR – nominated for six academy awards
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, Indie Film & Documentary, and Film History & Appreciations forums.
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Thank you, this confirms in clear terms what I thought was hapenning.
Still the gain I get for the other exports by using Qmaster makes it worth doing the job in two separate operations with one dedicated solely to H.264.
patrice
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