Ryan, it's great to have your direct feedback.
The issues I encountered so far with the Quicktime component:
When reading a webm file in Quicktime Player 7 (7.6.6), it somehow
opens the file "progressively". With long files, it's very noticeable.
Let's say I open a file that is 50 minutes long. After opening it,
during the first 10 seconds, I can only move to the cursor to the 4
minutes mark. After 20 seconds, I can move it to the 8 minutes mark.
After a minute of loading, I can move it to the 25 minutes mark... and
so on, it will take a few minutes to fully load the file.
Also with some files, even when the video has fully loaded, I cannot
start playing from anywhere else than the beginning of the file. If I
move the marker to some point in the middle of the video, it previews
the images, but when I hit play, it jumps back to 00:00 and starts
The same files are behaving perfectly with the current version of VLC
- they load immediately, and I can access any point of the video.
When trying to export from Quicktime 7 into WebM, I notice that the
options don't allow to set a *frame dimension* for the video. I think
that his setting is extremely important, since WebM is a web
distribution format. It's a pretty common scenario to start from a
high resolution source file that must get encoded in a lower
resolution for distribution.
Finally, I had some cases where QT became unresponsive while
exporting, or crashed. I will send you the logs if I can reproduce
My system is OSX 10.6.8, 3.06 GHz Core 2 Duo, 8 GB Ram
PS -- I think I just figured out the most practical way for encoding
with the QuickTime component: using it with MPEG Streamclip. This
allows to select webm as output format, to define the frame size...
and it also supports batch encoding. The only downside is that the
encoding process is extremely slow.