the video installations I made in 2006-2008 did the following on a single Mac Quad G5 (later MacPro)

- Display live feed from 1080i camera
- record live cam to disk at full frame rate
- put live feed into 300 frame buffer and scrub through it at various rates
- play up to 4 1080i clips off of two hard drives.

This was all done with plenty of CPU in reserve.  The codec was AppleIntemediate which is simply Photo-JPEG with specific CPU optimizations.

You can see one of these in the lobby of OneArts Plaza in Dallas, Qualcomm HQ in San Diego and several private collections.

http://www.lincolnschatz.com/category/lincoln-schatz-recent-new-media-video-art-installation-from-here-commission-for-one-arts-plaza-dallas/



On Fri, Sep 24, 2010 at 5:18 PM, palmieri, ricardo <ricardopalmieri@gmail.com> wrote:
some tips to use hd videos under gridflow/gem? hd videos in photoJPEG
looks so heavy.
i would like to hear experiences using HD video under pd.

cheers


palm

2010/9/24 Mathieu Bouchard <matju@artengine.ca>:
> On Fri, 24 Sep 2010, Matteo Sisti Sette wrote:
>
>> When talking about video codecs, I think/thought there is actually no
>> difference, that is, motion-jpeg would be just a name for "photo-jpeg used
>> to encode a video stream" as opposed to encoding an image. Within the field
>> of video encoding they would be just two names for the same thing.
>
> they still have three different FOURCCs :
>
>  "jpeg" for Photo-JPEG
>  "mjpa" for Motion-JPEG-A
>  "mjpb" for Motion-JPEG-B
>
> but different lists of FOURCCs list them differently... it seems that there
> are dozens of other variants of those, specific to various companies. I only
> tried using the three above, IIRC.
>
>  _______________________________________________________________________
> | Mathieu Bouchard ------------------------------ Villeray, Montréal, QC
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