Re: [videoblogging] Re: Inner workings

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On Mon, 2 Aug 2004, Adrian Miles wrote:>
> On 01/08/2004, at 4:10 PM, Shan=
non Noble wrote:
>
>>
>> I am greatly confused by the difference between t=
he mp4 download vs.
>> the .mov download and this is a great frustration. N=
aturally I want
>> global access and return and immediate read/stream. So w=
hy does one
>> format and browser show me immediate stream and another wait=
s till the
>> entire piece downloads as is such the case here. The mp4 file=
had to
>> download completely and the .mov QT streamed immediately…I=92m=
using
>> Safari for this. Oye. My head is spinning.
>
> there isn't any di=
fference. an mp4 is a particular file format as
> ratified by the appropria=
te consortium. .mov is a file format used by
> QuickTime. its liek the diff=
erence betwen rtf and doc, they're just
> formats, both download just the s=
ame way.
>
> difference in presentation: one is fast start, the other proba=
bly
> isn't. fast start means key data at head of file so video can play
> =
before all data downloaded. non fast start means this data is not at
> head=
of file so entire file needs to be downloaded before it can play.

It migh=
t also be that the browser had to download the whole mp4 file
before handi=
ng it off to the media player, which is an issue that comes up
when you us=
e an external helper app versus a plugin. That's why I wrote
up how to ma=
ke a playlist containing just the URL of the mp4 file.

– Lucas

>
> it is=
n't an issue at your end, but at the compression end.
>
> cheers
> Adrian M=
iles
> ………………………………………………………..
> =
hypertext.rmit || hypertext.rmit.edu.au/adrian
> interactive networked vide=
o || hypertext.rmit.edu.au/vog
> research blog || hypertext.rmit.edu.au/vog=
/vlog/
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
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