[PD] recommended video codec

[chris clepper]

Try Photo-JPEG if available.  Also, those CPU numbers look really high 
to me.  Maybe something is not configured optimally?

cgc


On Jun 21, 2005, at 9:44 PM, etienne deleflie wrote:

> Hi all,
>
> I am in the throws of  tetsing dozens and dozens of video codecs to 
> find the one that is the most "right".
>
> I want to decode 30 minutes of video (no sound) at 25fps (no dropped 
> frames) at 640 x 280... from a 10gig scsi hard drive.... decoding must 
> take up no more than around 30% CPU on a 2ghz processor (need the rest 
> for audio)
>
> codec must have no frame differenceing for fast access to sepcific 
> frames... revers playback etc.
>
> I'm using PDP .... which does yuv422 planar. ......
>
> - mjpeg A (as encoded by transcode) chews 65% cpu
> - mjpeg B (as encoded by Premiere) chews around 50% cpu
> - component video (packed yuv422) chews around 30% cpu  (acceptible) 
> but takes up too much hard drive space
> - planar 4:2:0 is good ... its the closest ..... chews 25% cpu , takes 
> less hard drive than component but still too much hard drive.
>
> theora is yuck, sorenson too much cpu, divx is small, fast and 
> reasonable quality ....... but all these have frame differencing.
>
> indeo 3 is poor quality but decode is very fast.... cant read indeo 4+ 
> on linux (I think it is frame differencing anyway)
>
> cinepak would do it, ..fast decode... but very poor quality.
>
> .... any suggestions? ........... anyone found a mjpeg compressor that 
> deocdes really fast?
>
> does anyone know of a codec that is PLANAR .... but compresses each Y 
> U and V plane? ..... something like that would be real fast for pdp.
>
> etienne
>
>
>
>
>
>
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