I'm in the process now of using it for the first time on a CD-ROM project in Director and here are the problems I've encountered:
1. FLV videos encoded with Sorenson Squeeze 3 or the 1.0 Encoder or older do not contain the duration or width and height of the video - Duration info along with width and height must be stored as metadata in the video stream. If you use the latest encoder 1.2 or Sorenson Squeeze 4 then you'll be OK. Also there are tools for adding the meta data to existing FLVs. See http://www.buraks.com/flvmdi/ 2. Seeking to the end of a long video can take some time. - We have videos that extend beyond 30 minutes and seeking through these can take some time... even longer when playing off a CD-ROM. The only solution I know of is to A) buffer as much video ahead of time, B) break up the video into smaller parts that do not exceed 10MB... I'd love to find better solutions to this problem... 3. Seeking to a specific point in time will not always work. - The seek command will go to the nearest keyframe after the time parameter you specify. If you have markers you need to navigate to, I don't know what the best way is to embed keyframes at those times... I'm currently investigating what software will export markers as keyframes in FLV, but I'm not sure this will work since external apps just use QuickTime conversion to do the output so them may just ignore any compression markers set in your software's timeline like FinalCutPro or CleanerXL... The only other solution would be to add a lot of manual keyframes... Maybe there is a programming solution - seek, pause and buffer then seek again? Anyway, FLV has it's pros and cons as does any media type. MPEG ADVANCE is nice. We've used it for some time, but some computers will only support MPEG1 which is a pain to work with, and also MPEG ADVANCE seems to always work in DTS mode on Windows which is a bummer. I've also ran in to cases where it hogged too much CPU and caused a Project/Run-Time-Lingo or mine to miss beginSprite events (ouch) -Rob Walch > -----Original Message----- > From: Zebin Ayinikat > Sent: Friday, February 18, 2005 8:02 PM > To: [email protected] > Subject: <lingo-l> To FLV or not to FLV > > Hi > I am working on a crossplatform project .....Right i have created the > basic framework in director with a flash cast member as the menu.... > so now i am faced with choosing the video format to be used in the > project.Though i am leaning towards Tabuleiros mpeg advance xtra...I > really would like to know about FLV flash files...Are they a viable > option ...I mean has anybody used this in a project for cd rom > delivery ..Is it resource hungry .....and the questions go on...I just > would like to know the pros and cons of using flv files. > > Thanks in advance > > Zebin [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [email protected] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
