Quicktime video performance...

Discussion in 'MacBook Air' started by The Final Cut, Nov 23, 2010.

  1. The Final Cut macrumors 6502

    Joined:
    Sep 5, 2009
    #1
    I just got my air today and everything is fine, but some standard def quicktime files (.mov) that played fine on my mac pro and windows netbook, for some reason play like a slideshow on the 11" air. They play perfectly in VLC however, anyone know why? I would not care but there for a school project... They are rather large for their quality (600mb for 3 min) they were exported from avid...
     
  2. imaketouchtheme macrumors 65816

    Joined:
    Dec 5, 2007
    #2
    Check your CPU usage while the video is acting up under Activity Monitor and post back.
     
  3. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #3
    VideoSpec (I prefer that, though it hasn't been updated since 11/2009), MediaInfo Mac (10/2010) or MediaInfo (10/2010, there is a Mac OS X version to download, VideoSpec and MediaInfo Mac are using the same library as MediaInfo)

    Maybe you have to install an Avid video codec, as it seems to be encoded using a DV codec (220MB/min).
     
  4. The Final Cut thread starter macrumors 6502

    Joined:
    Sep 5, 2009
    #4
    I will try, but I should note HD mkv have been playing fine on my new air, and to the other suggestion, this file played fine on a low end windows 7 laptop without avid of any kind, I played in quicktime for windows. Checking activ monitor now brb...

    EDIT: USER 16% SYSTEM 40%. I should also note it plays fine with spacebar preview quciktime... (or is that using vlc?)
     
  5. spinnerlys Guest

    spinnerlys

    Joined:
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    #5
    Just out of curiosity, could you test the video in one of the applications I linked to and post the report here?
     
  6. The Final Cut thread starter macrumors 6502

    Joined:
    Sep 5, 2009
    #6
    USED FIRST APP YOU SUGGESTED:)

    ***** First Analyzed File Results *****

    *** General Parameters ***
    - Name: SUNDAYCHASE[avid final].mov
    - Container: MOV - QuickTime
    - Creation Date: 2010-11-16 6:17:46 PM
    - Size: 643.0 MiB
    - Duration: 0:02:58
    - Bitrate: 30.3 Mbps
    - Encoding Library: Apple QuickTime
    - Encoding Application: Undefined

    *** Video Track Parameters ***
    - Format: DV (NTSC)
    - Size: 610 MiB (95%)
    - FourCC: dvc
    - Track number(s): 0
    - Bitrate: Max.: ---
    Average: 28.8 Mbps
    Min.: ---
    - Frame rate (fps): Max.: ---
    Average: 29.970
    Min.: ---
    - Bitrate mode: Constant
    - Encoding profile: Undefined
    - Resolution: Undefined
    - Width (Pixel number): 720
    - Height (Pixel number): 480
    - Pixel Aspect Ratio: Undefined
    - Display aspect ratio: 4:3
    - Chroma subsampling format: YUV411p
    - TV standard: NTSC
    - Interlacing: Interlaced
    - Encoding library: Undefined
    - Additional Parameters: Bits/(Pixel*Frame) ratio: 2.778

    *** Audio Track(s) Parameters ***
    - Format: Uncompressed PCM
    - Size: 32.6 MiB (5%)
    - FourCC: twos
    - Number(s) and language(s): 2: English
    - Details: 16-bit, big endian, signed linear PCM
    - Profile: Undefined
    - Bitrate: 1 536 Kbps
    - Bitrate mode: Constant
    - Resolution: 16 bits
    - Rate: 48.0 KHz
    - Channel(s): 2 (stereo)
    - Position: Undefined
    - Encoding Library: Undefined
    - Additional Parameters: Not available

    *** Miscellaneous ***
    - Subtitle(s): No Subtitle
    - Metadata: Album: Undefined
    Part number: Undefined
    Track name: Undefined
    Track name number: Undefined
    Performer: Undefined
    Screenplayer/Writer: Undefined
    Genre: Undefined
    Encoded date: UTC 2010-11-16 23:17:46
    Comment: Undefined
    Album artist: Undefined
    Grouping: Undefined
    Copyright: Undefined
     

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