DVL-Digest 727 - Postings: Index Canopus Codec Quality? codec speed (was: Premiere 6.0 dual performance (was VIA chi Serious OT and When I territory! Canopus Codec Quality? - Adam Wilt Question? Adam Wilt has some really great sites that compair the different > codecs. Are there any sites that rate the Canopus DVcodec? Camparison or > general view of the quality? I've tested the Canopus alongside a bunch of others; did the tests back in October-November but the writeup won't get on my website until mid-February at the earliest due to other tasks in the hopper. Also I have yet to run the tests on FAST purple; purple's sitting ythere, but there's that time issue, y'know... The summary: Canopus and Matrox soft codecs are the best I've found on the PC platform. Along with QT 5 Mac in YUV mode, these set the standard against which all others are measured. Cheers, Adam Wilt codec speed (was: Premiere 6.0 dual performance (was VIA chi - Adam Wilt ...using the Canopus DVRaptor CODEC. So my 3.2 seconds under Premiere > 5.1c compares to your 3.5 seconds under Premiere 6 on a single 733 MHz > processor system.... Sounds about right. I got 3.1 - 4.0 seconds per second of dissolve using Canopus on a single 600 MHz PIII with the VIA chipset & Premiere 5.1. > FYI, I ran my tests as 10 second dissolves (several trials), and divided > by 10 for the 1-second times. Sources were 2 different DV video files Same here. > (I've seen some folks on other lists post x-dissolve timings using > stills for sources, which IMHO is not a realistic way to benchmark > and will skew the results to look much faster than real life. Agreed. Depending on codec and NLE it can increase apparent speed by between 10% and 1000%! > Using the same video file on both sides of a dissolve is also not kosher > in my book). As the data can be fetched twice from the disk cache it does tend to give artificially speedy results. > Also, I'm told that the DX8 version of the MSDV version is faster than > the DX7 codec I'd benchmarked... In my tests, DX8 was only 1%-2% faster on the same material. The quality is a vast step above DX7, too, but as DX7 was so poor to begin with, this wasn't difficult, grin. Even then, DX8 is no great shakes when it comes to quality. DX7 (same machine as Canopus tests, but using Vegas Video instead of Premiere 5.1) ran about 7.2 seconds on a processing sequence that Canopus did in 3.5 seconds. Part of that may be Vegas -- but when I exported the same sequence as uncompressed, it completed in about half the time, so there's definitely some slowdown due to the DX7/DX8 compression cycle. > Lastly, some DV codec compression speeds can be *very* dependant on what > kind of source image you're compressing (I know this is true for both > MSDV and Canopus/Raptor), so your mileage will vary. And for just about every codec I've tested. I'll typically dissolve two "simple" scenes with flat areas of color and little detail, and get a faster number, and two "complex" scenes of leafy trees, resulting in a slower number. The 3.1 second Canopus number is for the simple dissolve; the 4.0, for the complex. Cheers, AJW Serious OT and When I territory! - "Perry" Adam posted: >Think of it: you can camp out in a cheesy motel amongst the titans of the industry... Pinnacle, Sony, Canopus, and yes, Apple itself! Feel the power! Soak in the atmosphere! See the former Ampex campus (pretty much only the sign remains)! Tour the office park where Abekas and Next hung out in their glory days! Ride the train to MacWorld, laughing at the dot-commers in their overpriced BMWs sitting stuck in gridlock alongside the Chevys and Fords!< As an ex Ampex employee who often visited Redwood City for training, this gave me a huge smile. We used to stay on Camino Real for a night, huge bed, swimming pool, color tv, free coffee and danish at the check out desk. For a Brit it was all pure magic. There were some super bars further down Camino, lots of 'toy' shops and 'The City' was always there for the week-end. Everybody tells me I wouldn't recognise it now, 25 years later! Perry Mitchell Video Facilities http://www.perrybits.co.uk/ (diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-) [up] |
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