[flashpro] Best practice for creating FLV video files

[eric choisy]

hi stephen

a short answer in your text

regards

eric

Le 27 oct. 05 à 18:22, Stevio a écrit :

> I have been working on creating my first Flash video for a web site  
> using FLV files. I have some questions as to what is best practice.
>
> On2 or Sorenson / Flash 8 or 7?
> -----------------------------------------------
> The On2 video codec creates a much better quality video than the  
> Sorenson Spark codec. However, this can only be used on browsers  
> with the Flash 8 player installed. I emailed a group of people  
> asking them to check out a video and only a small number had the  
> Flash 8 player or went to the bother of installing it.
>
> Should I therefore code my video for Flash player 7 (or less) by  
> using Sorenson?
>
> If so, I have another question - when I coded the video using  
> Sorenson for Flash player 7, and then created the SWF file in Flash  
> and set the Publish settings for Flash Player 7 version and hit  
> Publish, I get a warning saying that this movie uses features that  
> are not supported in Flash Player version 7:
>
> "Scene=Scene 1, layer=Layer 1, frame=1:The component 'FLVPlayback'  
> requires Flash Player 8 or later."
>
> How can that be if I have coded it using Sorenson?

you certainly use the flvplayback component that require flash 8  
player !!

> Do you recommend I use On2 Codec and just put a note on the web  
> page to tell people they can safely install Flash Player 8? Or code  
> for version 7? Or do both and use a detection method to play the  
> appropriate one (would rather not use that option)?
>
> What are you doing for your FLV videos?

depend of the client's request ! (flash player 6 ,7 or 8)
if it's for personnal site, had a detection script and and ask to  
install flash 8.
Flash 8 is quite new, it certainly need some months to have  
significant penetration stats...


>
>
> File sizes/quality/download rates
> -----------------------------------------------
> My video is approx. 310 seconds long. Do I need to worry about the  
> final size of the FLV file as long as it is downloading quicker  
> than the user is viewing it?
>
> One version I created was about 10MB in size. But that's not a  
> problem if the user is downloading quicker than it's playing, right?
>
> As an example, if I code using a max data rate of 150kilobits per  
> second, and the user is using broadband, then it doesn't really  
> matter what the final size of the FLV file is cause they will be  
> able to download it while playback is smooth right?
>
> However, if a user is using a modem, then I should code at perhaps  
> 30kbps to ensure a user using a 56k modem has smooth playback, and  
> perhaps 15/20 kbps for users with 28.8k modems, given that these  
> are maximum rates for the modem and not what they would necessarily  
> achieve. Do many people still use 28.8k modems or are people with  
> modems using 56k?

depend of your contry ;) but DSL seems to be the new standart
some provider stop to sold RTC.

>
> If you can answer any bits of this message please reply, I don't  
> expect people to bother to answer it all! Just trying to get my  
> head round it all. I would think I should code at least 2 versions  
> of the movie - one for broadband and one for modem people.
>
> Thanks,
> Stephen
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