Quantcast FFmpeg: FFvfw Video Codec - digitalFAQ.com Forums [Archives]
  #1  
01-26-2004, 06:01 PM
kwag kwag is offline
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Continued from ffmpeg thread...
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  #2  
01-26-2004, 06:11 PM
Hydeus Hydeus is offline
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So lets continue
Kwag, you mentioned that earlier test with ffvfw ended with crash at all time.
I was preforming (or should i say try to preform) two pass encode with VDMod. Result -> crash. Did you try this?
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  #3  
01-26-2004, 06:22 PM
rds_correia rds_correia is offline
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Geez,
Then although it's using libavcodec, tmpgenc is faster than ffvfw
Damn
Ok then I don't see any point on going much further with our efforts unless Karl sees any brand new
potential that could blow tmpgenc or cce out of the skies.
Anyway it's been fun to learn how to use this one.
Karl, u da man.
What do we do
Should we keep running more tests?
Should we wait for Milan answer?
Regards
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  #4  
01-26-2004, 06:25 PM
kwag kwag is offline
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Quote:
Originally Posted by Hydeus
So lets continue
Kwag, you mentioned that earlier test with ffvfw ended with crash at all time.
I was preforming (or should i say try to preform) two pass encode with VDMod. Result -> crash. Did you try this?
Yes. It crashes all the time in multi pass modes.
In one pass, it does work fine, but with sky high bitrates.
Even at 352x240, I got bitrates as high as around 3,000Kbps, which is too much.

-kwag
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  #5  
01-26-2004, 06:28 PM
kwag kwag is offline
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Hi rds_correia,

I really like the CODEC, and I like the motion estimation even better that TMPEG's.
I wonder how high the bitrates will go doing an MPEG-2 at 704x480
I'm about to try that, because maybe it can be used to make KDVDS.
It would be good to be able to patch the matrix though
Let's see if the developer answers the E-Mails, or even joins us here, and we can start a new storm

-kwag
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  #6  
01-26-2004, 06:30 PM
Hydeus Hydeus is offline
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ffvfw is faster than TMPG
Maybe I did'n clearly explained this. Sample movie was encoded in 41sek(ffvfw) and 64sek(TMPG). 41<64 Seek acurate to highest level increes time for ffvfw to ~50sek, buth i dont know all setings. Lets wait for Milans reply. Thats my opinion.

As always Kwag is faster than bullet
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  #7  
01-26-2004, 06:32 PM
rds_correia rds_correia is offline
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Ok let's give it a try because maybe we haven't seen enough from this baby.
Anyway about the matrix, I already patched the matrix successfully as I said in the mencoder thread.
I even mentioned the steps...
Can u try that too?
Cheers
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  #8  
01-26-2004, 06:41 PM
kwag kwag is offline
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Quote:
Originally Posted by rds_correia
Anyway about the matrix, I already patched the matrix successfully as I said in the mencoder thread.
Me too
Currently doing a test encode

-kwag
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  #9  
01-26-2004, 06:44 PM
Hydeus Hydeus is offline
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Yes. I can change matrixes the way you described.

It's 0:40 i my time zone, and i must go up realy early
Have a nice talk
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  #10  
01-26-2004, 06:49 PM
rds_correia rds_correia is offline
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Well it's 23:42 in my zone and I must get up at 06:20 but...
You know, just gotta make this last statement: I can't patch the correct intra matrix on it...
the last two lines of it should be:
29 34 37 38 40 48 58 69
34 37 38 40 48 58 69 79

and it's changing it to
29 34 37 38 40 48 58 75
34 37 38 40 48 58 75 83

sniff, what will we do??
Milan boy, where are you????
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  #11  
01-26-2004, 06:50 PM
rds_correia rds_correia is offline
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Hey kwag,
post your results
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  #12  
01-26-2004, 06:53 PM
kwag kwag is offline
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Get ready for the results .......... ...... ........
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  #13  
01-26-2004, 06:56 PM
rds_correia rds_correia is offline
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Man!
You should be the presenter of the Movie Academy Awards
lolol
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  #14  
01-26-2004, 07:01 PM
rds_correia rds_correia is offline
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Hit me with quality, speed, etc..
Maybe a comparison with tmpgenc??
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01-26-2004, 07:05 PM
kwag kwag is offline
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LOL

Here it is: http://www.kvcd.net/ffvfw-red-planet.test.m2v

CODEC ffvfw with KVCD "Notch" matrix, using constant quality set to 100
Max bitrate goes up to 1,779Kbps and average bitrate of clip is only 892Kbps

NO FILTERS USED
Plain .avs only to resize to 704x480 with 2 blocks-TV overscan, so I guess with the MA script, this will be very promising

Edit: Sample is MPEG-2 with a max GOP size of 18 frames.

-kwag
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  #16  
01-26-2004, 07:06 PM
kwag kwag is offline
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Fedback. Feeback. Feedback. Feedback.
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  #17  
01-26-2004, 07:07 PM
rds_correia rds_correia is offline
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I've got nothing to compare about quality but it sure looks great.
What about speed?
Have you noticed any problems with your patched matrix as I did??
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  #18  
01-26-2004, 07:13 PM
rds_correia rds_correia is offline
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Great quality, now that i've finally finished downloading it!!!
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  #19  
01-26-2004, 07:23 PM
rds_correia rds_correia is offline
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Man,
I gotta crash.
Otherwise I might put my job in danger
See you guys tomorrow.
Hoppe I can run some tests also.
Dunno how to patch that matrix perfectly yet though...
C ya
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  #20  
01-26-2004, 07:26 PM
kwag kwag is offline
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Later
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