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-   -   I.T. - Quicktime to Windows help please you nerds! ;-) (http://forums.sv650.org/showthread.php?t=103735)

SoulKiss 31-01-08 11:38 AM

Re: I.T. - Quicktime to Windows help please you nerds! ;-)
 
Quote:

Originally Posted by K (Post 1402158)
Recording File Format: Motion Pictures - "QuickTime Motion JPEG" (motion pictures with audio)

And so a little more Apple-evil is leaked into the world............

wyrdness 31-01-08 11:41 AM

Re: I.T. - Quicktime to Windows help please you nerds! ;-)
 
Quote:

Originally Posted by K (Post 1402158)
A Panasonic MDC-FZ18... and I have a sneaky suspiscion that it's cleverer than me. ;)

In the manual it states:
Recording File Format: Motion Pictures - "QuickTime Motion JPEG" (motion pictures with audio)

Talk about a non-standard video format. I'd assumed that the camera would use a more common video format that wouldn't actually need converting, but you definitely need to convert motion jpeg.

I can see why they use it though - the camera already as jpeg compression and each frame is encoded independently of the others.

wyrdness 31-01-08 11:55 AM

Re: I.T. - Quicktime to Windows help please you nerds! ;-)
 
Quote:

Originally Posted by SoulKiss (Post 1402163)
And so a little more Apple-evil is leaked into the world............

I imagine that they chose motion jpeg to avoid having to do intra-frame encoding (which requires lots of processing power and reduces quality). It's better than using an intra-frame encoder (e.g. mpeg) if you need to edit and re-encode the video.

The trouble is, that there's no standard format for motion jpeg. I've seen loads of different versions of motion jpeg from different manufacturers.
Apple's Quicktime m-jpeg is probably the most widely used version and most people with already have it or can download it for free. As you pointed out, it's quite easy to convert it into other formats.

K 31-01-08 01:13 PM

Re: I.T. - Quicktime to Windows help please you nerds! ;-)
 
Quote:

Originally Posted by wyrdness (Post 1402166)
Talk about a non-standard video format. I'd assumed that the camera would use a more common video format that wouldn't actually need converting, but you definitely need to convert motion jpeg.

I can see why they use it though - the camera already as jpeg compression and each frame is encoded independently of the others.

Quote:

Originally Posted by wyrdness (Post 1402179)
I imagine that they chose motion jpeg to avoid having to do intra-frame encoding (which requires lots of processing power and reduces quality). It's better than using an intra-frame encoder (e.g. mpeg) if you need to edit and re-encode the video.

The trouble is, that there's no standard format for motion jpeg. I've seen loads of different versions of motion jpeg from different manufacturers.
Apple's Quicktime m-jpeg is probably the most widely used version and most people with already have it or can download it for free. As you pointed out, it's quite easy to convert it into other formats.

*wwhhhooooosssshhhhh*
..............:-s

Did I mention I have opposable thumbs? ;)


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