mateuszstaniszew
mateuszstaniszew Recent Posts Threads Started
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mateuszstaniszew
says

Hi everyone, I got this strange problem with Quicktime -> H.264 codec in After Effect CC on Windows 7 64 bit.

The problem is that I can’t create mov that is in 1920×1080. After about 30 frames rendered the AE crash with information like “Can’t access the file”. It’s also after clean Windows 7 install. If the output is smaller like 1280×720 everything is OK.

I think thats might be something with files privileges, I have been rendering to different locations but didn’t help.

Did You have similar troubles? Any ideas?

Thanks in advance!

276 posts Stay Free, according your mind...
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sfxstudio
says

Try to install QuickTime Pro, it could be that !?
But i’m not sure, it could be an hardware problem too,
as not enough memory (RAM)
Try to empty your cache memory…and your computer temp
Best regards :)
Steve

mateuszstaniszew
mateuszstaniszew Recent Posts Threads Started
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mateuszstaniszew
says

Thanks sfxstudio, unfortunately it won’t help.

It works fine with free Quicktime on my old machine that has 16GB of RAM.

The problem is with my new machines that has 24GB on first and 64GB on second machine, and as I said this happens even on clean Windows and AE install.

ps. It also doesn’t work through Media Encoder.

276 posts Stay Free, according your mind...
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sfxstudio
says

That’s why i tell you to try the pro version of QuickTime….. It’s maybe that cause there some differences with codecs… That could explain… Once again it’s a probability…. Try if you can Best regards Steve

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ToddKopriva
says

Apple’s H.264 encoder has a severe bug that causes crashes in the encoder when 24 or more threads are used. So, people with computers with a large number of CPUs will hit this bug.

This is one of the many reasons to not use Apple’s H.264 codec.

mateuszstaniszew
mateuszstaniszew Recent Posts Threads Started
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mateuszstaniszew
says

Apple’s H.264 encoder has a severe bug that causes crashes in the encoder when 24 or more threads are used. So, people with computers with a large number of CPUs will hit this bug. This is one of the many reasons to not use Apple’s H.264 codec.

Thanks, maybe this is the reason. I checked it on Macs but it was fine, so this bug is only in Windows.

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ToddKopriva
says

No, the problem is on Mac OS, too, if you have enough threads going.

EnchantedStudios
EnchantedStudios Recent Posts Threads Started
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EnchantedStudios
says

This is one of the many reasons to not use Apple’s H.264 codec.

This comment warrants a little more explanation (and direction) as H264 is a preferred codec for authors and marketplaces, to keep file sizes down.

106 posts
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ToddKopriva
says

The problem is not with H.264 in general. The problem is specifically with Apple’s H.264 QuickTime codec, which was coded long before computers had so many CPUs and could have so many threads active.

1 post
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nickfor
says

imElfin studio says that there are many bugs in the apple H.264 encoder. why not try Free H.264 Codec Download for Playback imelfin.

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