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Movies and Video For people making movies and editing video with their Mac.

GoPro 1080p video laggy


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rfomlover

 
Member Since: Jan 18, 2010
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I am using a Powermac G5 quad 2.5 with 8gb of ram and the nvidia Quadro FX 4500 video card that they came with and when playing back my gopro videos in 1080p on quicktime they are incredibly laggy. My 13" Macbook Pro with the 2.9GHz i7 and 8GB of ram plays these flawlessly. I thought that the Powrmacs were supposed to be awesome with video. Is there a reason why it so laggy?
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chas_m

 
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A PowerMac G5 is nearly 10 years old. So I think that's your basic problem, in addition to the fact that QT probably isn't using all four cores. Also, what drive is this footage on, maybe drive speed is playing a role there. There could be other factors like fragmentation etc at play there as well.

As you've seen, a machine made during this decade has a great deal less trouble with it, so I think ultimately that's your answer.
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rfomlover

 
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Quote:
Originally Posted by chas_m View Post
A PowerMac G5 is nearly 10 years old. So I think that's your basic problem, in addition to the fact that QT probably isn't using all four cores. Also, what drive is this footage on, maybe drive speed is playing a role there. There could be other factors like fragmentation etc at play there as well.

As you've seen, a machine made during this decade has a great deal less trouble with it, so I think ultimately that's your answer.
I know its old lol just thought it wouldnt do too bad with 1080p since 1080p came out around blu-ray time which was in 2006. Its on the hard drive. Yeah QT probably isnt using all four cores especially since the powermac is bottle necked at 10.5. I think that the problem is more software based than it is hardware simply because of the fact that this computer was only a year old around the time that I remember 1080p starting to become more prevelant and the QFX should be able to do it. Whatever I bought this thing mainly for Logic 8 which is does superbly so I am still very happy with it. Thanks for the input.
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bobtomay

 
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With a machine that old, would guess that it may also depend on the type and file size of the video you're playing. It's probably going to have issues with the typical B-R file size at 25-40 GB for 90-120 min video.

I'd probably try an experiment and move one of those to your internal drive and see if it experiences the same lag.
If you're using an external via USB 2, maybe even FW400, don't think that's going to work with a B-R file size.

I would believe that particular video card, hardware wise, shouldn't have any problems with any 1080p video.
That's one of the card the pros would have been using to create those videos back then.

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rfomlover

 
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Quote:
Originally Posted by bobtomay View Post
With a machine that old, would guess that it may also depend on the type and file size of the video you're playing. It's probably going to have issues with the typical B-R file size at 25-40 GB for 90-120 min video.

I'd probably try an experiment and move one of those to your internal drive and see if it experiences the same lag.
If you're using an external via USB 2, maybe even FW400, don't think that's going to work with a B-R file size.

I would believe that particular video card, hardware wise, shouldn't have any problems with any 1080p video.
That's one of the card the pros would have been using to create those videos back then.
It is on the internal hard drive already unfortunately. But thats exactly what I was thinking that is what the pros would have been using back then which is why I dont see the reason for this issue lol. But I guess an old computer is an old computer, for $180 it was still worth it lol. Although the case did get damaged in shipping. It was perfect in the pictures.
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chas_m

 
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Another area you could look at is the bitrate of the video, maybe that's what it is choking on.
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rfomlover

 
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Quote:
Originally Posted by chas_m View Post
Another area you could look at is the bitrate of the video, maybe that's what it is choking on.
Thats probably what it is. It plays 1080p video from an iPhone no problem.
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