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TOPIC
When playing certain AVI movie files with the QuickTime Player, the video frames are white and the following dialog box appears: "You may experience problems playing a video track in 'filename.avi' because the required compressor could not be found."
DISCUSSION
- Intel Indeo Video 3 - http://asu.info.apple.com/swupdates.nsf/artnum/n11266
- Intel Indeo Video 4 - http://asu.info.apple.com/swupdates.nsf/artnum/n11265
- Intel Indeo Video 5 - http://asu.info.apple.com/swupdates.nsf/artnum/n11430
- Intel Indeo Video 5 for Windows - http://asu.info.apple.com/swupdates.nsf/artnum/n11431
QuickTime encountered a track compressed using an incompatible codec (COmpressor/DECompressor), or one for which the supporting QuickTime-compatible software is not installed. The message also appears with QuickTime for Windows when the codec required is not active in the Windows Registry for use with QuickTime.
The situation is not unique to AVI files. QuickTime provides built-in support for AVI, but AVI is not a codec itself. It is a file format central to Microsoft Video for Windows (VfW), and one for which a variety of codecs may be used, such as Cinepak or Indeo Video.
Though QuickTime has long supported Cinepak, QuickTime for Macintosh does not include any version of the Indeo Video codec. In order for QuickTime to play back a media track compressed with Indeo Video (or any other codec not included with QuickTime), it must be installed separately.
The latest versions of Indeo Video for QuickTime are available online from Apple.
The Indeo codecs below are available from Apple Software Updates. Use the following URLs to access them directly:
Intel has developed and released the following Indeo Video codecs for use with QuickTime.
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| QuickTime 2.x or later for Macintosh | Indeo® Video | Indeo Video R3.2 |
| QuickTime 3.x or later for Macintosh | Indeo® Video 4 | Indeo Video 4.4 |
| QuickTime 3.x or later for Macintosh | Indeo® Video 5 | Indeo Video 5.0 |
| QuickTime 2.x for Windows (16-bit) | Iv32qt16.qtc | Indeo Video R3.2 |
| QuickTime 2.x for Windows (32-bit) | Iv32qt32.qtc | Indeo Video R3.2 |
| QuickTime 3 for Windows | Indeo4.qtx | Indeo Video 4.4 |
| QuickTime 4 for Windows | ir50_32.qtx | Indeo Video 5.0 |
NOTE: Later versions of Indeo Video cannot handle tracks compressed with earlier versions. For this reason, more than one version of the codec can be installed at the same time.
WHICH CODEC WAS USED?
Using the QuickTime MoviePlayer or QuickTime Player, you may be able to determine which codec was used to compress an audio or video track:
- Open the file in QuickTime Player.
- Choose Get Info from the Movie menu.
- Choose Sound Track or Video Track from the left pop-up menu in the Info window.
- Choose Format from the right pop-up menu.
Figure 1 The QuickTime Player Info window.
The Data Format section shows the codec. In the example shown, 'IV32' represents Indeo Video 3.2, just as 'IV50' represents Indeo Video 5.0, and so on.
Knowledge Base article 17159: "
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