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Richard17
Suggested Compression & file type
on May 31, 2006 at 8:27:01 pm

FCP (5.1)
QT Pro (7)
Squeeze Compression Suite (4.3)

I want to export a series of 2-minute videos for embedding on a web page using the software listed above. Given the requirement that users with both dial-up and cable modem will be accessing these videos my questions are:

What would be a good mix of file types/data rates to upload to the server.

Display size will be 320x240.

Thanks!





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thewanggao
Re: Suggested Compression & file type
on Jun 1, 2006 at 5:13:26 am

Quicktime H.264 would be good, and sorenson 3 quicktime. File sizes shouldn't be a problem with these codecs.

Alexander Gao

"When the revolution happens, I'll be leading it."


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Mike_S
Re: Suggested Compression & file type
on Jun 1, 2006 at 8:04:59 am

Except, of course, that many (maybe half) browsers do not have Quicktime plug-in support, and H.264 requires QT 7, further reducing the % of people you will reach.

You might want to look again at Flash video ...


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daniel_l
Re: Suggested Compression & file type
on Jun 1, 2006 at 9:55:52 am

Mmmmm - where do you get your (suspect) information from?

Video AllSorts


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Mike_S
Re: Suggested Compression & file type
on Jun 1, 2006 at 2:43:36 pm

It's very hard to get current, accurate data on what browsers have what plug-ins / ActiveX controls installed. You could look at this http://www.prestospace.org/project/deliverables/D12-6.pdf for more if you wanted to.

The "usual suspects" here are the Macromedia stats (hardly unbiased, suggesting 68% for QT) and the Frost & Sullivan report from 2004 - which also has to struggle through the same fog of data (suggesting around 37%).
Sfaik Apple does not publish an estimate for % of systems with QT player installed.

Detailed web metrics from a sample of high-traffic sites would be most welcome, if anyone can point to them?


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daniel_l
Re: Suggested Compression & file type
on Jun 1, 2006 at 2:50:43 pm

iPod = iTunes = Quicktime.
Most iPod owners use Windows. All Macs have Quicktime. As such IMHO I'd lean more towards the 68% than 37%.

BTW you don't need Quicktime to view H.264 media, but it helps ;-)
http://en.wikipedia.org/wiki/H.264

DL

Video AllSorts


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Harvola
Re: Suggested Compression & file type
on Jul 16, 2006 at 7:12:06 pm

i had this same question as i downconvert my ntsc videos for web use.

my web builders say .flv to prevent downloads
(i'm not offering downloads, it's client owned design work.)

i'm wondering if i should convert them to square pixels ?

iPod size 320x240 is a downsize of DV NTSC SQUARE PIZEL 720x540.

my originals are 720x480. any thoughts ?



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daniel_l
Re: Suggested Compression & file type
on Jul 17, 2006 at 9:00:16 am

I'd go with what your website builders are suggesting. Make sure they are encoding using the latest version of the Flash CODEC.

As for square vs non-square, this page may help:
http://lipas.uwasa.fi/~f76998/video/conversion/#introduction

DL

Video AllSorts


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