On 11/5/05, patrick puredata@11h11.com wrote:
hi,
i was wondering about mac os X ? what is the best codec for mixing (blending, seeking) videos? quicktime for sure, but what codec and size: 720x480 DV or 640x480 with a codec like mpeg4, photojpeg? it's a g4 laptop, with 512 ram.... 50 videos, 2 seconds each.
I get at least 3 NTSC DV clips playing 30 fps at once on a 1 Ghz G4 laptop using the internal drive. A fourth might be possible using a Firewire drive. I hope you aren't trying to play all 50 at once though.
Photo-JPEG is less efficient but has the advantage of working at any resolution (it also has a lower data rate at the same size as DV). Motion-JPEG is the same as Photo-JPEG, but uses two interlaced fields per frame.
I highly recommend avoiding anything with MPEG in the name if performance and image resolution are required.