Erika L. Walker-Arnold wrote: > From: Jochem van Dieten >> >> 15 MB / 10 seconds = 1.5 MB/s = 12 Mbps >> 350 MB / 30 seconds = 11.7 MB/s = 93 Mbps >> >> These are insane bitrates. 12 Mbps is comparable to highly >> compressed HDTV, 93 Mbps is of the scale. > > What should they be?
That depends on the quality that is desired. A good MPEG-4 codec will deliver VHS quality at 800 kbps, so that is 1 to 3 MByte for 10 to 30 seconds. DVD quality will be about 4 Mbps MPEG-4, so that is 5 to 15 MByte for 10 to 30 seconds. Some other considerations are: - streaming vs. download & play Streaming is only possible if the visitor has more bandwidth then the bandwidth of the movie. If that is the case, then the stream starts immediately, while usually you have to wait for download & play. - just playing or jumping Do you want a format that only allows the visitor to see it from begin to end, or should they be able to jump through the movie and start at any position inside it? - which platforms Some codecs are only available for certain platforms. My experience is that when all the requirements and consequences are clear, people without special needs or large clips tend to go for a simple dwnload & play where they just upload the clips and serve them through HTTP from their normal website. You get the full choice in codecs which means you can choose a codec that allows jumping and can be played from any platform. Next up is Windows Media Services. It offers streaming and is relatively cheap, but there are few CF hosting packages that have it included so you probably have to find a dedicated host. There might be platform issues with the codecs too. Top off the bill is dedicated Real Server / Quicktime blahblahblah hosting. If you go that route, you should be able to afford a real consultant :-) Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:5:149689 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/5 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:5 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
