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-   -   FFMPEG: Ffvfw VIDEO CODEC (http://www.digitalfaq.com/archives/encode/7913-ffmpeg-ffvfw-video.html)

kwag 01-26-2004 06:01 PM

ffvfw VIDEO CODEC
 
Continued from ffmpeg thread...

Hydeus 01-26-2004 06:11 PM

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?

rds_correia 01-26-2004 06:22 PM

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 :cry: 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

kwag 01-26-2004 06:25 PM

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

kwag 01-26-2004 06:28 PM

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 :idea:
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 :roll:
Let's see if the developer answers the E-Mails, or even joins us here, and we can start a new storm :mrgreen:

-kwag

Hydeus 01-26-2004 06:30 PM

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 ;)

rds_correia 01-26-2004 06:32 PM

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

kwag 01-26-2004 06:41 PM

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 :D
Currently doing a test encode :cool:

-kwag

Hydeus 01-26-2004 06:44 PM

Yes. I can change matrixes the way you described.

It's 0:40 i my time zone, and i must go up realy early :x
Have a nice talk :)

rds_correia 01-26-2004 06:49 PM

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????

rds_correia 01-26-2004 06:50 PM

Hey kwag,
post your results :twisted:

kwag 01-26-2004 06:53 PM

Get ready for the results .......... ...... ........ :mrgreen: :mrgreen:

rds_correia 01-26-2004 06:56 PM

Man!
You should be the presenter of the Movie Academy Awards :twisted:
lolol

rds_correia 01-26-2004 07:01 PM

Hit me with quality, speed, etc..
Maybe a comparison with tmpgenc??

kwag 01-26-2004 07:05 PM

LOL :D

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 8O :mrgreen:

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 :lol:

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

-kwag

kwag 01-26-2004 07:06 PM

Fedback. Feeback. Feedback. Feedback.
:mrgreen: :mrgreen: :mrgreen: :mrgreen:

rds_correia 01-26-2004 07:07 PM

8O
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??

rds_correia 01-26-2004 07:13 PM

Great quality, now that i've finally finished downloading it!!!

rds_correia 01-26-2004 07:23 PM

Man,
I gotta crash.
Otherwise I might put my job in danger :lol:
See you guys tomorrow.
Hoppe I can run some tests also.
Dunno how to patch that matrix perfectly yet though...
C ya

kwag 01-26-2004 07:26 PM

Later ;)


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