QuickTime 7.0.2 - warning & question

Mikuro · #1 September 8th, 2005, 12:29 PM

The latest QuickTime update seemed small and innocent enough, so I went ahead and installed it. Unfortunately, it is no longer compatible with Divx, which is a real deal-breaker for me. So if anyone else relies on Divx, be warned.

Note that the Divx 6 beta ( http://labs.divx.com/ ) does seem to work with QT 7.0.2, but performance is significantly worse than Divx 5 with QT 7.0.1. I'm not sure if that's due to bad compatibility with 7.0.2 or just because the Divx 6 beta is not yet as optimized as Divx 5.

Now my question: How should I go about downgrading back to QuickTime 7.0.1? I'm not sure where to begin.

**fryke** · #2 September 8th, 2005, 01:14 PM

Reinstall Tiger would be it, I guess. Can't really downgrade such updates, I'm afraid. But I'm sure if it's really a problem, some DivX update will solve it. For the time being, why not use VLC to play DivX content.

Mikuro · #3 September 9th, 2005, 04:53 AM

Quote:

Originally Posted by fryke

Reinstall Tiger would be it, I guess. Can't really downgrade such updates, I'm afraid. But I'm sure if it's really a problem, some DivX update will solve it. For the time being, why not use VLC to play DivX content.

Well, Divx still hasn't solved the pre-existing issues with Tiger even after all this time. And Divx 6 has been out for Windows for some time. So I'm not gonna hold my breath.

As for VLC, it's fine for straight playback, but it's no substitute for QuickTime, I'm afraid. I need editing, decent scrubbing, adjustable speed, etc, etc. The good news is that I've started using non-QT tools for my encoding anyway, so that won't be a huge problem.

I'm going to see if I can pull off some tricks with Pacifist and my Tiger DVD. There's gotta be some way...

Some "compatibility" update!

Porce · #4 September 9th, 2005, 05:10 AM

The DivX files I have work fine with QT 7.0.2...

Mikuro · #5 September 9th, 2005, 07:45 AM

Really? What codecs are you using to view them?

Porce · #6 September 9th, 2005, 07:48 AM

Just the DivX 5 codec available from DivX.com.

Mikuro · #7 September 9th, 2005, 10:21 AM

Hmm. I have no idea what the difference between our setups is. But then again, Divx's QT7 compatibility has always been a your-mileage-may-vary kind of deal. Many people reported many different problems even with QT 7.0.1 that I never had (like the "two Help menus" bug and the "Classic won's start" bug).

But I don't care anymore, because with a little hacking, I came to a solution! I now rely on the Xvid codec for my video decoding, since it's faster than Divx 6 (about the same speed as Divx 5). The problem there is that only Divx can properly decode the audio in most AVIs, and when Divx 6 is installed, it takes over all the video decoding, too.

But I found a way around that problem! You have to open up "Divx Fusion Decoder.component" (control-click, and select "show package contents"), and remove some of its guts. Specifically, the file "DivX 6 Decoder.rsrc", in the Contents/Resources folder. Trash it, then quit+reload QuickTime Player. Without that file, Divx will handle the audio decoding, but Xvid will do the video. I'm getting performance comparable to what I had before now, so I'm a happy camper.

gordonplant · #8 September 11th, 2005, 09:03 AM

After upgrading to 7.0.2 a bunch of MPEG4 files that worked fine under 7.0.1 no longer have usable audio when played in QT player. The audio plays for a second or two and dissappears.

These files can still be played back using VLC 0.82 so it looks like a QT 7.0.2 playback problem.