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lapino

macrumors regular
Original poster
I thought my MBP should be able to copy with MKV files, but when I try to play some 1080p movie rips on my MBP, the video stutters quite a bit. Anything I can do about this?
 
I thought my MBP should be able to copy with MKV files, but when I try to play some 1080p movie rips on my MBP, the video stutters quite a bit. Anything I can do about this?

1. Use better software (Plex).
2. Use a lower bit rate file.
3. Use a 720p file.

Personally, I'd go with #1. 😉
 
Some 1080p content are poorly encoded.

FYI, 720p looks virtually the same unless you are paying attention to image detail instead of the story.
 
Since VLC uses 100% CPU driven decoding it's not surprising that you might get stutter. For a full 50mbps h264 decode you need dual 3ghz+ last I checked.

If there is something to allow quicktime to playback mkv's you will have less stuttering since it can do GPU offloading.
 
Since VLC uses 100% CPU driven decoding it's not surprising that you might get stutter. For a full 50mbps h264 decode you need dual 3ghz+ last I checked.

If there is something to allow quicktime to playback mkv's you will have less stuttering since it can do GPU offloading.


Perian works like a charm. Its a Quicktime preference pane that allows it to play multiple formats, such as avi, mkv, flv, divx, and others.


http://perian.org/#detail
 
Since VLC uses 100% CPU driven decoding it's not surprising that you might get stutter. For a full 50mbps h264 decode you need dual 3ghz+ last I checked.

If there is something to allow quicktime to playback mkv's you will have less stuttering since it can do GPU offloading.

The trouble is, VLC is 100% CPU dependant, but it only uses 50% of your CPU's capability. It only uses one core, so in Activity monitor you can see it using up 50% of the CPU and the video stuttering like hell. Hopefully this can be addressed once Snow Leopard is released, and a new version of VLC either uses Grand Central for Dual Core support, or better yet GPU acceleration.

CoreAVC is a very good decoder for windows, with my old 1.8GHz laptop I was able to play 1080P flawlessly, but they have no intentions to make a mac version 🙁.
 
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