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Compressor & H.264
I have a 2 hour video that was shot in HD. I created a Self-Contained movie file and imported into Compressor. I am using H.264 codec with the standard settings, but it is still compressing after 11 hours. It states it has another 26.5 hours left before it completes.
There has to be something wrong I have done or something. I’m going to use the H.264 file to burn on a Blu-Ray Disc.
Anyone have any idea why Compressor would take so long to compress this?
Hardware:
Mac Pro (Quad core) 2.66 with 9 GB RAMThank you,
Harsheet -
16 Replies
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What standard settings for h.264 are you using? There are a number of settings for that codec in Compressor.
Which version of Compressor? What version OS?
What kind/frame rate/etc of HD?What’s your RAM breakdown too- 9GB is an odd number, unless you have a 512MB paired DIMM…
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H.264:
Average Bit Rate: 20.00 Mbps
Max Bit Rate: 29.40 Mbps
Fame Sync: 1.0 Second
Multi-Pass (Checked)Compressor 3.5 (version)
Mac OS X (version 10.5.8)
The computer came with 1 GB of RAM (2×512) and I added 8 GBs to it over time.
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Yes, I’ve always heard that you get best results if your RAM is kept in even values (8GB or 10GB — not 9GB)
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Really ?!?!?
Is there a reason for that?
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What version of Compressor are you using? I have Compressor 3, and it won’t do H.264 for Blu-Ray. Only Mp2.
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First thing I would do is fix your RAM. Pull the 512 sticks and put them on the shelf.
Apple’s explanation and reasoning here:
https://manuals.info.apple.com/en_US/MacPro_MemoryRiserCard-DIY.pdfhttps://support.apple.com/kb/TS1957
I went through all of our Mac Pros and reseated alot of RAM (after lots of random installs by random people) and saw improvement and more stability on some systems.
Also, you didn’t tell us what you were compressing, but blu-ray compressions (Which it looks like you’re doing) can take a very long time. It’s the nature of the beast. If you did a single pass, it would go faster, fwiw.
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I have Compressor 3.5, but I saw h.264 codec available in 3.0 as well. I think it is under HD DVD, but it doesn’t matter because h.264 will work with Blu-Ray.
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I’m going to get rid of my Two 512 chips…
Also, thinking about getting the Matrox CompressorHD Accelerator. From what it looks like this will also solve my problem. I can’t have my computer take 40-50 hours compressing… Got too many wedding edits to do.
Thanks.
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Wait- you’re delivering blu-ray discs for wedding clients? Er… how’s the playback compatibility been with their various players?
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