[PD] recommended video codec
cgc at humboldtblvd.com
Wed Jun 22 05:45:22 CEST 2005
Try Photo-JPEG if available. Also, those CPU numbers look really high
to me. Maybe something is not configured optimally?
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.
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