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View Full Version : What causes choppy playback on a 5DII?


col4bin
13th of December 2008 (Sat), 17:50
Is it my memory card is not fast enough to record HD videos (it is a 30mb/s card)?

beezwax
13th of December 2008 (Sat), 17:54
choppy playback on the camera or on the computer?

col4bin
13th of December 2008 (Sat), 18:03
on my computer. I think I may have figured it out. I have 2 other applications that are accessing the HD so I think that is the cause.

davidfig
14th of December 2008 (Sun), 01:27
Full HD requires lots of horse power.

canadianbacon52
14th of December 2008 (Sun), 10:11
Yea, it might just be your processor can't keep up. What is it?

danskim
15th of December 2008 (Mon), 12:12
Yeah, most likely your computer can't handle it.

beezwax
15th of December 2008 (Mon), 12:20
are you playing it directly from the card or are you copying it to your harddrive and playing it?

col4bin
15th of December 2008 (Mon), 20:19
I pretty sure I had too many things running at once. It is fine now that I have shut down some applications.

My computer is a MacBook Pro 15.4" 2.33 GHz Intel C2D w/4 GB RAM so I think it is powerful enough. Playback is now smooth so all is good.

YONG JIA LIN
20th of December 2008 (Sat), 17:15
Good to you~~

fred maurer
21st of December 2008 (Sun), 20:08
Very glad to hear this. Thin king about a 5DII!

KoolaGirl
21st of December 2008 (Sun), 21:41
I am having the same problem with movies that I film with my 5DII. They look great on the camera, but once I play them on my computer they are very choppy.

BrantG
21st of December 2008 (Sun), 21:44
I am having the same problem with movies that I film with my 5DII. They look great on the camera, but once I play them on my computer they are very choppy.

If you have Adobe Premiere, you could try this guy's settings which work great.

http://www.youtube.com/watch?v=Hllo1LMdh3w&annotation_id=annotation_433604&feature=iv

There is also a free utility called MPEG Stream Clip which these settings may also apply.

KoolaGirl
21st of December 2008 (Sun), 22:49
If you have Adobe Premiere, you could try this guy's settings which work great.

http://www.youtube.com/watch?v=Hllo1LMdh3w&annotation_id=annotation_433604&feature=iv

There is also a free utility called MPEG Stream Clip which these settings may also apply.

What about Final Cut Express?

BrantG
21st of December 2008 (Sun), 23:00
Possible. I don't have a Mac, So I can't answer that one. I'm sure they should be pretty close.

col4bin
22nd of December 2008 (Mon), 01:34
What about Final Cut Express?

There are books that among other things, will tell you the optimal settings for FCE and where files should be stored. Fast external drives connected via fire wire help.

tekkie
23rd of December 2008 (Tue), 19:34
I just tried those settings in premiere elements 7 and it was way faster than the stock options I was using :)

these darn videos use a ton of power I have a pretty beefy machine and its still choppy even watching the raw video from a 4 disk Raid 5 ESATA system on a quad core 8GB computer

osv
23rd of December 2008 (Tue), 20:28
all of those things are very lossy, the picture quality will take a serious nosedive... that quicktime h.264 encoder, in particular, is really bad... there are better h.264 encoding alternatives for the mac platform, at least one of which is now in the public domain.

i would question that the video from the canon 5dII is really that hard to play back on a computer, because if you look at the specs, it's not nearly as compressed as avchd is... we covered this in another thread, it has a higher bitrate, which is easier for the cpu to decode.

none of those things require a raid system, this is strictly a cpu decoding situation.

If you have Adobe Premiere, you could try this guy's settings which work great.

http://www.youtube.com/watch?v=Hllo1LMdh3w&annotation_id=annotation_433604&feature=iv

There is also a free utility called MPEG Stream Clip which these settings may also apply.

BrantG
23rd of December 2008 (Tue), 20:36
all of those things are very lossy, the picture quality will take a serious nosedive... that quicktime h.264 encoder, in particular, is really bad... there are better h.264 encoding alternatives for the mac platform, at least one of which is now in the public domain.

i would question that the video from the canon 5dII is really that hard to play back on a computer, because if you look at the specs, it's not nearly as compressed as avchd is... we covered this in another thread, it has a higher bitrate, which is easier for the cpu to decode.

none of those things require a raid system, this is strictly a cpu decoding situation.

Well if your purpose is to export them for viewing on the web, it really isn't that big of an issue. I would agree these settings aren't for extra processing but a final result for web.

Also, I don't have a Mac, so I have to work with what I have.

osv
23rd of December 2008 (Tue), 20:44
be glad that you don't have a mac ;-) whoops, did i say that, lol

i think that it's handbrake that encodes h.264 for the mac?

PAFC2004
20th of January 2009 (Tue), 07:21
I'm having problems with a Q6600 and 4Gb of RAM.. Very choppy playback.... any suggestions?