Why do I receive a warning or error about locating the Indeo5 compressor when I use the MOVIE2AVI, AVIFILE, or AVIREAD functions?
Date Last Modified: Thursday, May 3, 2012
| Solution ID: |
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1-4G50RI |
| Product: |
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MATLAB |
| Reported in Release: |
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R2007b |
| Platform: |
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Windows x64 |
| Operating System: |
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Windows Vista |
Subject:
Why do I receive a warning or error about locating the Indeo5 compressor when I use the MOVIE2AVI, AVIFILE, or AVIREAD functions?
Problem Description:
I am trying to create an AVI file using AVIFILE or MOVIE2AVI.
When I execute
aviObj = avifile('C:\temp\test.avi');
or
aviObj = movie2avi(mov, 'C:\temp\test.avi');
I receive the warning message:
Warning: Cannot locate Indeo5 compressor, using 'None' as the compression type.
If I explicitly specify 'Indeo5' as the 'Compression' method, instead:
aviObj = avifile('C:\temp\test.avi', 'Compression', 'Indeo5');
I receive the error:
Indeo codecs are not supported in this version of Windows. You must specify a different codec.
In addition, when I try to open certain AVI files using AVIREAD, I get the following error:
??? Error using ==> aviread at 75
Unable to locate decompressor Indeo5 to decompress video stream.
Solution:
This warning or error occurs because the Indeo version 5 codec was not found on the current system. The Indeo codec was shipped with Windows XP, Windows XP SP2, and prior versions, however it is not shipped with the following operating systems: Windows XP SP1, Windows XP x64, Windows Vista (32/64), and Windows 7 (32/64).
Indeo 5 is the default codec used by MOVIE2AVI and AVIFILE.
1. If you are using Microsoft Windows 7, note that Microsoft does not provide any patch for the codec Indeo 5 on Windows 7 64 bit.
The AVIFILE or MOVIE2AVI function only supports a limited subset of available codecs, and the Windows Media 9 VCM codec on 64-bit Windows machines works with limited results. Purchasing the codec Indeo 5 will work, but the quality and long term viability of the Indeo5 codec is much lower compared to Windows Media 9. Writing out uncompressed AVIs gives better results in terms of quality than encoding them using a third party tool.
2. For Windows XP users, download this patch from Microsoft:
http://www.microsoft.com/downloads/details.aspx?FamilyID=3c9464fb-7cd7-461b-ad24-6a4d1c5df8ff&displaylang=en
The above patch adds the Indeo 5 codec to valid installations of Windows. The Indeo 5 codec is also available from Ligos Corporation:
http://ligos.com/index.php/home/products/indeo/
Note, however, that the Ligos version of the Indeo codec is not free and is only available for 32-bit machines.
3. To allow you to continue making AVI movies, AVIFILE and MOVIE2AVI will default to using 'none' as their compression type on Windows Vista.
A possible workaround is to use a different compression method that is available in Windows Vista. For example, to use the Cinepak codec, use the following MATLAB command:
movie2avi(mov, 'avifile.avi', 'compression', 'Cinepak');
For more information on AVIFILE or MOVIE2AVI including the different compression options, consult the documentation by executing the following at the MATLAB prompt:
doc avifile
doc movie2avi
Also note that on some Windows systems, including all 64-bit systems, the default Indeo 5 codec is not available. MATLAB issues a warning, and creates an uncompressed file.
On 32-bit Windows XP systems, MATLAB can create AVI files compressed with Indeo 3 and Indeo 5 codecs. However, Microsoft Windows XP Service Pack 3 (SP3) with Security Update 954157 disables playback of Indeo 3 and Indeo 5 codecs in Windows Media Player and Internet Explorer. Consider specifying a compression value of 'None'. See the following link for more information:
http://www.microsoft.com/technet/security/advisory/954157.mspx
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