> > > I noticed that quicklook doesn't play my .mov or .mp4 files any longer.
> > > is this the same for everyone else?
> >
> > Works for me.
>
> I'm not alone in this one. I'm seeing a lot of reports about some video
> files that worked in Mt Lion's Quicklook that don't work anymore.
I found this at
tidbits.com:
http://www.macworld.com/article/2058298/why-mavericks-movies-may-not-pre
view-properly.html
Why Mavericks' movies may not preview properly
Reader Arlen Andrews has a concern about his movie files. He writes:
I recently upgraded to Mavericks and now when I attempt to preview a
movie file I see only a window telling me that the movie is zero KB in
size, which I know isn靖 true. When I double-click on the movie, it
opens in QuickTime Player X but then immediately converts. What零 going
on?
This appears to be another under-the-hood change designed so that the
Mac OS better mimics the iOS. If you have one, find a movie file that
ends with .m4v. Dollars-to-doughnuts, if you select that file and press
the space bar, Quick Look will behave exactly as it should and show you
the movie. Now try it again with one of your .mov files. No dice,
right?
Right. And that零 because Mavericks is very particular about the kinds
of movie codecs it allows. For example, I created a movie with
Telestream零 Screenflow 4 and exported it using the application零
Lossless format (which uses the Animation codec by default). When I
attempted to preview the resulting movie with Quick Look I saw exactly
what you did卟 seemingly empty document. When I double-clicked on it,
QuickTime Player X launched, up popped a conversion window, and I had
to wait for that conversion to complete before I could view the movie.
(And now I had two copies of the movie𡑕he original Animation-codec
version and the converted version that used the Apple ProRes 4444
codec.)
However, movies using H.264 encoding previewed perfectly and opened in
QuickTime Player without requiring conversion.
So, in regard to encoding movies in the future, the trick is using
codecs that conform to QuickTime零 whims. The Animation codec is
clearly codeca non grata, but H.264 and MPEG-4 movies (using
QuickTime零 MPEG-4 codec) are aces. Also Apple provides a package of
codecs for the professional user as part of the ProApps QuickTime
Codecs package. (Your Mac must hold a copy of Final Cut Pro, Motion, or
Compressor to install this package.) The package adds support for the
Apple Intermediate, Apple ProRes, AVC-Intra, DVCPRO HD, HDV, XDCAM HD /
EX /, HD422, MPEG IMX, Uncompressed 4:2:2, and XAVC codecs. I encoded a
movie using the Apple ProRes 422 codec and it previewed and played as
it should.
As for those of you who simply want to play your now ill-favored movies
I雋 afraid there零 currently no Quick Look solution. Until Apple or a
third-party creates a Quick Look plug-in that allows these affected
files to play you雹e going to have to open and convert them and then
preview the converted version.
However, if you don靖 care about previewing them but rather want to
play them without the conversion step, you have a couple of choices.
Zongyao Qu零 free MPlayerX will play these movies without converting
them, plus it supports .avi files, which QuickTime won靖 touch.
The venerable (and oh-so-much-more-capable-than-QuickTime-Player-X) $30
QuickTime 7 Pro still works under Mavericks and it too will allow you
to open and play these movies without the conversion step.