Mplayer is at the top when the video is played directly  and in both
modes you provided( -vo xv and -vo gl) , just like with vlc. Mplayer -vo
xv is a lot better quality than mplayer -vo gl though; probably the best
it's performed so far.

Also as previously stated-- the issue occurs with every media player,
youtube videos (html5 and flash). Any HD video on youtube is really bad
quality in HD (especially 1080p) but in Mac OSX all players run with
exceptional quality and without lag in all videos.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1103236

Title:
  Choppy and pixelated video on Macbook Air 5,1. Unable to run/view HD
  videos at all

Status in “xserver-xorg-video-intel” package in Ubuntu:
  New

Bug description:
  *** I reported this as a question on Ask Ubuntu and was told this is a
  bug. http://askubuntu.com/questions/245584/choppy-and-pixelated-video-
  on-macbook-air-5-1-unable-to-run-view-hd-videos-at-a ***

  I'm currently running 13.04  and the video is extremely choppy and
  pixelated on any video program I run (vlc, mplayer, totem etc.), any
  flash or html5 videos, and HD videos won't play in a reasonable way at
  all (entire frames get skipped and video footage is completely
  distorted; I would say it's about 10 FPS on HD videos, really
  extremely bad quality). Also, I had this exact problem on 12.04 and
  12.10 and was kind of hoping 13.04 would be better, but it is not.
  Video in Mac OSX works excellent, no lag or quality loss, works
  perfect in that OS. I would attach some sort of log file but I don't
  know how and would need directions to do so.

  Specs - Macbook Air 5,1 ,8 gig ram , 256 ssd , Intel® Core™ i7-3667U
  CPU @ 2.00GHz × 4 , Intel® Ivybridge Mobile

    *-display               
         description: VGA compatible controller
         product: 3rd Gen Core processor Graphics Controller
         vendor: Intel Corporation
         physical id: 2
         bus info: pci@0000:00:02.0
         version: 09
         width: 64 bits
         clock: 33MHz
         capabilities: msi pm vga_controller bus_master cap_list rom
         configuration: driver=i915 latency=0
         resources: irq:46 memory:a0000000-a03fffff memory:90000000-9fffffff 
ioport:2000(size=64)

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