On Jan 28, 2009, at 8:35 AM, Cotty wrote:
Hi gang,
I'm testing some video on my website - if you'd like to try it on your
computer and connection, please feel free.
it's a 3 minute test and is currently too small, and judders a bit
(have
to republish with de-interlaced video and a bit bigger but it's
getting
there) - I would be interested to see if both PC and Mac users can see
and hear it. If you can, please let me know your platform and browser,
and if you can't same thing. Thanks v much.
<http://www.seeingeye.tv/pages/webvideo.html>
I tested it with both FireFox and Safari on Mac OS X v10.5.6, running
on a Power Mac G5 with plenty of RAM and fast drives. I'm connected to
the net via aDSL to an Airport Extreme base station. On streaming
downloads, I normally see a continuous line up to 165Kbps network
reads being performed with Activity Monitor.
- With both browsers, playback starts before sufficient data is
downloaded to provide smooth play ... the playback catches up with the
data transmission within about 8 to 10 seconds, then it stutters along
stopping and starting as enough data comes in. I adjusted the
Quicktime cache up to 1000Mbyte, no difference. I also tested whether
the SafariBlock 'ad blocker' software was influencing the playback by
disabling it and re-starting with a fresh connection ... no difference.
Activity Monitor is showing a jittery line from 5 to 45 Kbps reads.
I compared going to YouTube.com and playing a similar length video. In
Activity Monitor, the download line does an early burst with up to max
165Kbps speed then settles into a continuous 85Kbps or so until all
data is downloaded. The playback monitor bars show the download
advancing ahead of playback by a factor of about 1.5:1 throughout the
download, playback of video and sound is very smooth.
- Once downloaded into the local cache, your prototype plays smoothly
all the way through on both browsers.
- Production-wise, it looks great. Good quality on both video and
audio, levels not too high, etc etc. You do good work, eh? :-)
Godfrey
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