Who wants to test a new MPEG2 encoder

[dragongodz]

how do you set how many passes are done?

CQ selected = 1 pass encoding
CQ unselected = 2 pass encoding.

thats all HC supports at the moment.

[dream-lx]

Really good mpeg2 encoder. If you could add support for HD resolutions and profiles, it would be perfect.

[buzzqw]

Could be possible to view in gui, during second pass, the low/average/high and current bitrate of encode ?

BHH

[freelock7]

@Hank
HC is working in Yuy2 color space or directly -like QuEnc- in Yv12
-You didn't mention it?

[Ebobtron]

Originally posted by freelock7
@Hank
HC is working in Yuy2 color space or directly -like QuEnc- in Yv12
-You didn't mention it?

I'm not Hank but from the documentation ver Beta 0.01

-----------------
Input can be a d2v project or input using Avisynth. HC expects as input YUV-planes (YV12 color space 4:2:0). During the encoding process there are no color plane conversions, the encoder keeps the color planes in YV12 color space.
-----------------

[gigaset2004]

@ hank
@Amnon82

I did some more tests with the new version in bitrate range of 1000.

The result is not so nice at the - best - encoding setting.

I have noticed that if there are a lot of movements in the pictures it becomes blocky around the movement.

I like to explain it a little more :

If there is a scene with one person an a static backround and the person move in the front so the area around the persons movement is blocky and the rest is less blocky.

Quenc - is more smooth in these scenes.

Question :

Could it possible that HC needs a more agressive Matrix like the `99 er from CCE or anything like that ?

Maybe Amnon82 could do more tests to get rid of these probs ?

[Amnon82]

@gigaset2004: I'm on it. 1000 I didn't test yet.
@hank: I wrote You a answer-mail. I hope we will communicate easier, soon

Just finished my new GUI!

Download HCEnc 0.01

Screenshots:

http://www.brckomania.net/HCGUI/img/HCENC1.png
http://www.brckomania.net/HCGUI/img/HCENC2.png
http://www.brckomania.net/HCGUI/img/HCENC3.png
http://www.brckomania.net/HCGUI/img/HCENC4.png

Features of the GUI:

*Very small and easy to use
*Reloads the settings of the last run
*Uses HCEnc 0.01 (Till now I don't have a newer commandline-version of HC)

I hope everybody likes it more than my last build.

[Mug Funky]

could possibly make a feature request? forced keyframes would be good for placing chapter points in precise places.

i've got a project ready to roll out of premiere (god, i hate that program, but it's all i've got for now) via pluginpac frameserver, but the problem is that if i make too many random accesses it'll just serve black frames, which is a huge waste of time as you could imagine. this is what's stopping me from making several HC.ini files with different begin and end points (or doing the same thing through avs).

a format like:

*FORCEIFRAME 2050 7800 9000 etc

or

*CHAPTER n1 n2 n3 etc

would be cool.

btw, i haven't tried the GUI yet... i probably should

[edit]

@ Amnon82:

by "spiky" i meant a clip that has moments of great complexity, hence large spikes in bitrate... doesn't matter, as hank's already answered my question

[dream-lx]

hank:

I have also noticed that CBR encoding is currently not supported, which would be very usefull.

So my personal whishlist:

1. CBR encoding
2. High Definition support (Main Profile at High level)
3. HDV compliant mpeg2 export (well I think this is not urgent at all)
4. A paypal account, so that we can donate you for your work (very urgent) :-)

[robot1]

@hank
I've tried your encoder for the first time today, and it did a very good job (4000 kbits/s)
I had already done the same encoding with CCE, and results were very similar.
Just a notice: I think in a couple of faster scenes HC had a bit of "grain", where CCE was cleaner (your default matrix used). In low motion scenes probably it was the opposite (less mosquito noise than CCE)
Anyway, for a 0.1 it's really really great.
Keep up the good work.

[Amnon82]

@Mug Funky: Chapterssupport will come in a version. When? When it's done

Originally posted by hank315
@Amnon82: I was wrong when I told you I hated GUI programming, I even start to like it, actually it's great fun
About the chapters, I tried that in previous versions but could not get it to work properly but it is certainly something worth to be implemented.

[hank315]

Hi all,

Read all posts and saw all the options people wanted.
ATM I'm working on the GUI to resolve the reported errors, after that the bitrate distribution will be optimized which still has some flaws.
About the wanted options, some can be implemented easily, some will require a lot of work...


NOTE1: the encoding engine from this GUI version is still the same as the "old" 0.01 release.
NOTE2: I noticed that scanning the database for a restart takes a long time. This is caused by a call to a "sleep" function which I used to test the thing but forgot to remove. Scanning will now be 2-3 minutes longer for a 2 hour movie because of this. For the moment you have to live with it

[FredThompson]

@Amnon82,

Good to see you have a well rounded avatar.

[Amnon82]

It's my girlfriend ... just kidding ...

[leviat]

I tried downloading the latest GUI version of HC but everytime I attempt to load an AVS script the program dies with a typical Windows death message. I tried using the HCenc GUI but again, HC appears to die almost immediately after the DOS window pops up. I was wondering if there was anything I could do to collect information?

My system:

AMB Athlon 64
Windows XP MCE (SP2)
Latest version of AviSynth2

Great work on the encoder,
Jason

PS - I'm a linux user so my Windows skills aren't the best, but I'll certainly try.

EDIT: Nevermind! I figured out my problem. After messing around with AviSynth for awhile I managed to discover I was using AviSynth2 instead of AviSynth25. After fixing that the problem went away. My guess is that HC was expecting a YV12 source and went it didn't find it, it got confused and crashed. You may want to try and add some error checking for that if possible .

[dragongodz]

It's my girlfriend ..

you wish mate... you wish.

whoever she is she is much easier on the eye than your old avatar.

hank315 - any news on what you are working on or problems etc would be interesting to some of us.

[yaz]

Originally posted by Amnon82
It's my girlfriend ...

uhum ... address ... phonenumber .... whatever ? c'mon, don't lemme hangin' :-)))
the bests
y

[Amnon82]

@yaz: U got PM

... but I think we are now a 'LITTLEBIT' offtopic ...

[unixfs]

Hank315,
is there any advantage at using a non-linear quantization function w.r.t to a linear one, that libavcodec uses?

Is it indicated for low-bitrate encodes or does it work better at high
bitrate?

Thanks.

[hank315]

hank315 - any news on what you are working on or problems etc would be interesting to some of us.

ATM I'm working on problems with the GUI which are reported here and implementing the preview option. Also some cosmetic changes will be done in the encoding statistics window. Will be ready in 1 - 2 weeks (sometimes I even have to work and sleep )

is there any advantage at using a non-linear quantization function w.r.t to a linear one, that libavcodec uses?

No not really, with a non-linear scale you have a little bit more control over the real quantisation values.
Relation between linear - non-linear Q:

 
quantiser_scale_code    Q linear   Q non-linear
       0                    forbidden
       1                  2           1
       2                  4           2
       3                  6           3
       4                  8           4
       5                 10           5
      ..                 ..          ..
      ..                 ..          ..
      31                 62         112

@Amnon
Your GUI really looks nice but your girlfriend even better
Will mail you tomorrow...