FLACCL: CUDA-enabled FLAC encoder by Gregory S. Chudov (prev. FlaCuda), Formerly "lossless codecs and CUDA" |
FLACCL: CUDA-enabled FLAC encoder by Gregory S. Chudov (prev. FlaCuda), Formerly "lossless codecs and CUDA" |
 Jul 13 2008, 05:34
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Group: Members Posts: 176 Joined: 20-January 03 From: A Tropical Isle Member No.: 4640  |
With my recent purchase of a 9000 series nVidia graphics card, I started thinking, has anyone investigated if nVidia's CUDA could be useful for lossless compression? I'm not even remotely close to being a programmer, so I haven't a clue how the code works, but it seems like CUDA is valuable for coding/decoding. I know nVidia is already holding a contest to speed up LAME (which ends in about 2 weeks), so perhaps it could be used to speed up lossless compressors? The fastest modes of several codecs are already blazing fast, approaching the limits of hard drives, but perhaps the high-compression modes could be sped-up through CUDA. Maybe, if the speed-up is enough, developers could even implement more ways to gain compression while still maintaining good encoding rates. It would be pretty cool if compression levels like La's best could be done at 50x or something.
Anyway, my curiosity is large, so just thought I'd ask. :) |
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Sep 11 2009, 03:24
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#2
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 Group: Developer Posts: 648 Joined: 2-October 08 From: Ottawa Member No.: 59035 |
QUOTE (GHammer @ Sep 11 2009, 05:21)  Flac 1.2.1 Clocks.wav: wrote 35796074 bytes, ratio=0.660 2.91 seconds That's a bit too small file for comparison. And it's better to compare against flac -8. Default flac compression level is very fast, i don't think it can be beaten by FlaCuda, at least yet. FlaCuda is focusing on higher compression. -------------------- CUETools 2.1.4
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gib FLACCL: CUDA-enabled FLAC encoder by Gregory S. Chudov (prev. FlaCuda) Jul 13 2008, 05:34
Martel I apologize for being completely incorrect. Jul 13 2008, 09:29
Garf QUOTE (Martel @ Jul 13 2008, 10:29) If I... Jul 13 2008, 10:00 gib Ah, I see now. Thanks very much for the response,... Jul 14 2008, 03:52 Gregory S. Chudov Here is good news.
An alfa version of flac encode... Sep 10 2009, 03:27 Dr_Colossus Sounds awesome, care to elaborate on the performan... Sep 10 2009, 05:58 Gregory S. Chudov Less impressive than i hoped to, but this is only ... Sep 10 2009, 06:05 Grunpfnul No love for ati? *sniff* Sep 10 2009, 09:24 Gregory S. Chudov There is love, but there's no implementation ^... Sep 10 2009, 09:49 Case I ran some tests with my Core i7 940 (stock speed)... Sep 10 2009, 16:30 Gregory S. Chudov Thank you! Sep 10 2009, 20:34 Ron Jones I'm anxious to see how this would perform on t... Sep 10 2009, 20:44 thundat00th QUOTE (Grunpfnul @ Sep 10 2009, 03:24) No... Sep 10 2009, 21:20 hlloyge Here are my test results:
Klaus Shultze - Dreams ... Sep 10 2009, 22:42 Gregory S. Chudov What was the file size for flac -6? We should comp... Sep 10 2009, 23:33 Wombat Not to shabby. Tried it on a C2D@3600+GTX260
Drea... Sep 11 2009, 00:33 GHammer This is on a 9500 GT
FlaCuda
Filename : Clocks.w... Sep 11 2009, 02:21 Lucho GPU audio encoding will be useful when OpenCL get ... Sep 11 2009, 08:28 hlloyge Here I am again, this time, more detailed:
Flac 1... Sep 11 2009, 19:52 Justin Ruggles QUOTE (hlloyge @ Sep 11 2009, 14:52) Is t... Sep 12 2009, 02:45 gib Hey, wow. This topic of mine was bumped, and with... Sep 12 2009, 06:10 PatchWorKs Well, I believe that even a small gain is always w... Sep 12 2009, 09:40 hlloyge Again: C2D8200, Geforce 9600GT
album.wav to flac ... Sep 12 2009, 10:32 Gregory S. Chudov QUOTE (PatchWorKs @ Sep 12 2009, 12:40) I... Sep 12 2009, 11:33 Dologan Wow, nice work Gregory!
Just wondering... how... Sep 12 2009, 11:40 Gregory S. Chudov Current GPUs do integer computations quite alright... Sep 12 2009, 11:52 Garf QUOTE (Gregory S. Chudov @ Sep 12 2009, 12... Sep 12 2009, 21:35 Dologan Hmm, does the encoder do pipe encoding (i.e. for p... Sep 12 2009, 12:15 Wombat Some questions regarding Flaccuda.
Back when flake... Sep 12 2009, 13:41 Maurits How hard would it be to convert this CUDA version ... Sep 12 2009, 14:48 Gregory S. Chudov QUOTE (Dologan @ Sep 12 2009, 15:15) Hmm,... Sep 12 2009, 15:07 Maurits QUOTE (Gregory S. Chudov @ Sep 12 2009, 15... Sep 12 2009, 15:57 Dologan QUOTE (Gregory S. Chudov @ Sep 12 2009, 15... Sep 12 2009, 17:40 Wombat Thanks for explaining it. Really a nice work you h... Sep 12 2009, 15:39 guruboolez My results on a old Core2Duo E6300 and small Nvidi... Sep 12 2009, 20:09 arri Just finished my tests:
image.wav:
flac 1.2.1 ... Sep 12 2009, 22:16 Wombat QUOTE (arri @ Sep 12 2009, 22:16) Just fi... Sep 12 2009, 22:51 arri QUOTE (Wombat @ Sep 12 2009, 23:51) Afaik... Sep 12 2009, 23:40 Wombat QUOTE (arri @ Sep 12 2009, 23:40) QUOTE (... Sep 12 2009, 23:53 Case I made a more thorough comparison with the new ver... Sep 13 2009, 10:00 hlloyge It sure isn't that compile, as they (at least ... Sep 13 2009, 14:36 alvaro84 I've done a quick test, how a 2+ year old full... Sep 13 2009, 16:19 Gregory S. Chudov Thank you for detailed test results. Looking at th... Sep 13 2009, 16:47 alvaro84 QUOTE (Gregory S. Chudov @ Sep 13 2009, 16... Sep 13 2009, 19:33 Gregory S. Chudov QUOTE (alvaro84 @ Sep 13 2009, 22:33) Is ... Sep 13 2009, 19:42 Case Seems to me like other modes got a speed boost too... Sep 13 2009, 21:39 Gregory S. Chudov Phew. I think i finally squeezed everything i coul... Sep 14 2009, 20:25 Case Impressive.
Sep 14 2009, 21:18 alvaro84 QUOTE (Case @ Sep 14 2009, 21:18) Impress... Sep 15 2009, 04:57 Gregory S. Chudov Thank you. Sep 14 2009, 21:26 sauvage78 So far I wasn't much interested in the small c... Sep 15 2009, 05:24 hlloyge I wouldn't kill nVidia just yet. AFAIK, as of ... Sep 15 2009, 06:50 sauvage78 IMHO audio or video encoding will not help nvidia ... Sep 15 2009, 07:05 GeSomeone QUOTE (sauvage78 @ Sep 15 2009, 08:05) As... Sep 15 2009, 12:43 odyssey QUOTE (GeSomeone @ Sep 15 2009, 13:43) QU... Sep 16 2009, 09:11 alvaro84 QUOTE (odyssey @ Sep 16 2009, 09:11) Now ... Sep 17 2009, 08:51 skamp QUOTE (alvaro84 @ Sep 17 2009, 09:51) Sou... Sep 19 2009, 09:38 alvaro84 QUOTE (skamp @ Sep 19 2009, 09:38) As for... Sep 19 2009, 13:04 Case Just converted my entire FLAC -8 library to FlaCud... Sep 15 2009, 20:34 Wombat Seems like i found a strange behaviour. If you hav... Sep 16 2009, 08:45 [JAZ] QUOTE (Wombat @ Sep 16 2009, 09:45) Seems... Sep 16 2009, 18:36 lvqcl FlaCuda_0.4 with "-8" switch, original t... Sep 16 2009, 19:09 Wombat QUOTE (lvqcl @ Sep 16 2009, 20:09) FlaCud... Sep 16 2009, 19:14 Gregory S. Chudov Added lossyWav support. It shouldn't make any ... Sep 17 2009, 23:12 Wombat Thanks for your fast work on that!!
Works ... Sep 17 2009, 23:30 Gregory S. Chudov Is there anybody here who knows the math behind Ch... Sep 18 2009, 19:05 Gregory S. Chudov I must add, that when computations are done in dou... Sep 18 2009, 19:54 gib I've gotten flacuda to work with the old but s... Sep 19 2009, 22:39 Wombat QUOTE (gib @ Sep 19 2009, 23:39) I've... Sep 19 2009, 23:10 gib Wombat, thanks for the suggestion of using Multi F... Sep 20 2009, 00:41 Gregory S. Chudov Here is version that is a tiny bit faster, i hope.... Sep 25 2009, 23:45 Wombat I eally canīt tell if your FlaCuda became any fast... Sep 26 2009, 01:58 Case This is getting ridiculous. New FlaCuda 0.6 is fas... Sep 26 2009, 11:19 alvaro84 I second, it's ridiculous
Now FlaCuda 0.6 at ... Sep 26 2009, 12:54 hlloyge CUDA:
CODED:\temp_2>CUETools.FlaCuda... Sep 26 2009, 13:31 guruboolez I'm far from ridiculous performances with my l... Sep 26 2009, 18:57 Gregory S. Chudov QUOTE (guruboolez @ Sep 26 2009, 21:57) C... Sep 26 2009, 19:23 alvaro84 QUOTE (Gregory S. Chudov @ Sep 26 2009, 19... Sep 27 2009, 06:35 Dologan Holy crap! Nice work, Greg!
FlaCuda -4 on... Sep 26 2009, 18:58 guruboolez Thank you for the explanation, Gregory. I Hope it... Sep 26 2009, 19:36 odyssey It crashes on my Geforce 9300 that's supposed ... Sep 26 2009, 20:15 Gregory S. Chudov Previous versions too? Sep 26 2009, 21:20 odyssey FlaCUDA03-05:
CODEError : Exception of type ... Sep 27 2009, 01:37 Wombat One small question about FlaCudas default blocksiz... Oct 1 2009, 01:01 Gregory S. Chudov Smaller blocks make it slower, but have their adva... Oct 1 2009, 07:17 johnsonlam Sorry for breaking in ...
Did someone planning fo... Oct 1 2009, 15:40 odyssey QUOTE (johnsonlam @ Oct 1 2009, 16:40) Di... Oct 1 2009, 15:48 johnsonlam QUOTE (odyssey @ Oct 1 2009, 22:48) QUOTE... Oct 2 2009, 08:49 hlloyge That was exactly what I was thinking - because it ... Oct 1 2009, 20:08 glebe johnsonlam, see screenshot Oct 2 2009, 17:42 johnsonlam QUOTE (glebe @ Oct 3 2009, 00:42) johnson... Oct 5 2009, 17:27 Rotareneg Sempron 3400+ (Socket 754) o/c'ed to 2500 MHz,... Oct 4 2009, 01:14 Ron Jones Can't wait to see how Fermi does with FLACuda.... Oct 4 2009, 02:08 VeaaC QUOTE (Ron Jones @ Oct 4 2009, 03:08) Can... Oct 5 2009, 02:56 Garf QUOTE (VeaaC @ Oct 5 2009, 03:56) QUOTE (... Oct 5 2009, 20:06 probedb QUOTE (Garf @ Oct 5 2009, 20:06) Or OpenC... Oct 5 2009, 20:44 alvaro84 QUOTE (probedb @ Oct 5 2009, 20:44) QUOTE... Oct 7 2009, 12:59 Maurits QUOTE (probedb @ Oct 5 2009, 20:44) QUOTE... Oct 8 2009, 09:44 Maurits QUOTE AMD Leads Industry as First Chip Supplier to... Oct 19 2009, 12:17 |
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