Missing QuickTime codecs
Written by: Mark Wilson
Earlier this week, I needed to play back a .AVI file in iTunes/Front Row. That’s not really a problem as it’s easy to convert the video to a .MOV file using Apple QuickTime Pro but one major issue was a complete lack of sound.
Now, before I go any further I should explain that there is one common theme throughout the comments section of every site discussing media formats and players – someone always says something to the effect of “use VLC – it plays everything”. VLC is a great media player but:
- I have Apple QuickTime Pro.
- I use Apple iTunes and Front Row (both of which depend on QuickTime).
- QuickTime components are available for many audio and video formats.
In other words, using VLC isn’t the right solution for me. QuickTime gave me a clue as to the problem as it informed me that:
Some necessary QuickTime software is missing. It may be available on the QuickTime Web site.
If you have a dialup connection to the internet, make sure it is active, then click the Continue button to check for the software.
I could have worked out for myself that I was missing a codec (and that message is pretty poorly written… should I not click continue if I don’t have a dialup connection? Maybe I’m reading the message too literally!) but clicking continue took me to the QuickTime components page and I didn’t know which one I needed. I was pretty sure that the video was an XviD movie and I already had the DivX codec (v6.4) as well as Christoph Nägeli’s XviD codec (v0.51) installed but then I found a big clue in the XviD FAQ:
It’s important to understand that video and audio are two separate things, which when combined make up movies. A movie consists of a video stream for the picture and an audio stream for the sound. The XviD codec is what makes it possible to decode the video stream, but it has nothing to do with decoding the audio stream. If the sound in a movie isn’t working you have to find out which audio codec is missing and install it.
The FAQ continues to explain how to use a Windows utility called GSpot to identify the necessary codecs but after reading Mike Peck’s article about playing XviD movies on an Intel Mac (and Paul Stamatiou’s follow-up post on getting Front Row to play XviD, DivX and 3ivX videos), I realised that the missing codec was for AC-3 (Dolby Digital). After installing the A52Codec (v1.7.2) for AC-3 playback and restarting QuickTime and iTunes I was able to watch my video, complete with the previously-missing audio stream.
I’m sure that over time I’ll need to add more codecs and one potentially useful resource is afreeCodec , offering downloads for Windows, Linux and Macintosh computers, games consoles and mobile phones.
Posted: 20:30 on Wednesday 11 April 2007 under File formats, Front Row, QuickTime, Useful software, iTunes.
Comments: 8
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Comments
Pingback from Mark’s (we)Blog » Where are the WVP2 codecs for QuickTime on a Mac?
Time: Tuesday 17 April 2007, 12:13
[...] problems as it uses the Windows Media Audio 9.1 and Windows Media Video 9 (WMV3) codecs and simply needs appropriate QuickTime components to be installed. Unfortunately the Photo Story output refuses to play the (WVP2) video track in either QuickTime [...]
Pingback from Mark’s (we)Blog » Creating a Media Center Mac
Time: Saturday 19 May 2007, 16:55
[...] seems to have enabled most of my content); however I’m still experiencing difficulties with some movies that were originally encoded as AVI and then converted for QuickTime/iTunes on the Mac (using Apple QuickTime Pro) and also some unprotected AAC audio with JPEG stills in the [...]
Pingback from Mark’s (we)Blog » Quick guide to getting video content onto an iPod
Time: Wednesday 29 August 2007, 1:28
[...] Apple TV each have their own limitations and only play videos that are created in specific formats. I understand that not all codecs will be available for all platforms but I’m a techie and it’s taken me a lot of time to work out what can and can’t [...]
Comment from dubdave
Time: Friday 1 February 2008, 13:59
genius, thanks, im in the same boat, sorted me right out, thanks again
Comment from onjoFilms
Time: Sunday 27 July 2008, 23:05
Installed a52, AC3, and I still am missing video and sound.
It seems really stupid that Quicktime works so well on a PC, but here I got an iMac and it only works sometimes for some vids. How stupid is that Steve Jobs?
Comment from M S
Time: Friday 15 May 2009, 15:35
right, i am being driven insane by too much advice, none of which is solving my problem. i have full res quicktime .mov files off a mac. they do not play video (only sound) on my vista pc. note that the compressed versions played just fine.
i am getting a message saying a quicktime codec is missing. i have downloaded a bunch of apps, none of which has done anything to find or install this missing codec and as you know quicktime’s site is crap.
what i need is to find this missing codec so firstly, i can view my videos.
secondly i will need to be able to compress and upload to various sites.
if you can at least solve the codec issue i’d appreciate it.
Comment from robb Reed
Time: Tuesday 10 November 2009, 1:25
Mark, you sir are a genius. I was having the same difficulties and followed your instruction…and now have sound to go with picture.
Thanks
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