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Search: Posts Made By: bilu
Forum: Video Encoding and Conversion 04-15-2004, 09:13 AM
Replies: 53
Views: 3,126
Posted By bilu
3-pass info: ...

3-pass info:

http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-divx4.html


Bilu
Forum: Video Encoding and Conversion 04-14-2004, 08:29 AM
Replies: 561
Views: 31,800
Posted By bilu
vfdct=3 (mmx) is the only one that works with the...

vfdct=3 (mmx) is the only one that works with the notch matrix.
And vfdct doesn't work with *bias negative values.

*bias negative values lower frame quantizers.
Reducing ibias decreases quality,...
Forum: Video Encoding and Conversion 04-13-2004, 06:44 PM
Replies: 561
Views: 31,800
Posted By bilu
It didn't improve, I was doing crap :? But...

It didn't improve, I was doing crap :?

But using vfdct=1:pbias=-256:ibias=144 I get similar size and quality to the notch matrix, without using the Notch matrix. :!:

And I could lower ibias...
Forum: Video Encoding and Conversion 04-13-2004, 12:35 PM
Replies: 561
Views: 31,800
Posted By bilu
I found a way to lower the quantizers on...

I found a way to lower the quantizers on high-bitrates:

vfdct=1:ibias=-256:pbias=-256

you can replace vfdct=1 with 2 or 6, just not 3 (mmx) because it can't handle negative *bias values.

But...
Forum: Video Encoding and Conversion 04-13-2004, 12:08 PM
Replies: 38
Views: 3,097
Posted By bilu
I know that for ages :twisted: But I'd like...

I know that for ages :twisted:

But I'd like a program to do it itself, just like AutoGK does now (and I helped len0x with hybrid Decomb thresholding).
And just like the algorithm i suggested in...
Forum: Video Encoding and Conversion 04-13-2004, 11:40 AM
Replies: 38
Views: 3,097
Posted By bilu
But automatic IVTC analisys like the one in...

But automatic IVTC analisys like the one in AutoGK still has a long way to go... :roll:


Bilu
Forum: Video Encoding and Conversion 04-13-2004, 09:10 AM
Replies: 38
Views: 3,097
Posted By bilu
But I don't see why loosing quality in the...

But I don't see why loosing quality in the process. A telecined video can be easily identified (just scan throught the frames and if there's a 3progressive 2interlaced) pattern and it will give you a...
Forum: Video Encoding and Conversion 04-12-2004, 05:02 PM
Replies: 561
Views: 31,800
Posted By bilu
libavcodec has gained MPEG-2 encoding only in the...

libavcodec has gained MPEG-2 encoding only in the latest versions, it has been mainly used for MPEG-4 encoding.

They probably don't know enough about VBV to implement minrate properly :?
...
Forum: Video Encoding and Conversion 04-12-2004, 03:25 PM
Replies: 561
Views: 31,800
Posted By bilu
And can you set minrates in CCE and TMPGEnc ? 8O ...

And can you set minrates in CCE and TMPGEnc ? 8O

Bilu
Forum: Video Encoding and Conversion 04-12-2004, 03:22 PM
Replies: 38
Views: 3,097
Posted By bilu
You're right. But then again I want to do a...

You're right. But then again I want to do a generic encoding script that doesn't need to care about hybrid movies, 30 fps video or 24 fps film :roll: So I have to do it like this.

Bilu
Forum: Video Encoding and Conversion 04-12-2004, 01:32 PM
Replies: 561
Views: 31,800
Posted By bilu
What's strange is that if Michael is right, then...

What's strange is that if Michael is right, then there is no such thing as minrate in any DVD-compliant encoder. So how does CCE work? And TMPGEnc?

Could it be a muxing problem you had? :?

...
Forum: Video Encoding and Conversion 04-12-2004, 01:01 PM
Replies: 38
Views: 3,097
Posted By bilu
I'm doing -ofps 29.97 and softpulldown because...

I'm doing -ofps 29.97 and softpulldown because it's multi-platform.

AFAIK there is nothing like pulldown.exe for Linux :?


Bilu
Forum: Video Encoding and Conversion 04-12-2004, 12:21 PM
Replies: 21
Views: 1,867
Posted By bilu
If you can't use the encoder's minrate setting...

If you can't use the encoder's minrate setting then you'll have to prevent "no-motion" situations that would generate bitrates lower than 150 Kbps.

Now imagine you get a stream with a dark stalled...
Forum: Video Encoding and Conversion 04-12-2004, 12:18 PM
Replies: 561
Views: 31,800
Posted By bilu
Bilu

Bilu
Forum: Video Encoding and Conversion 04-12-2004, 12:16 PM
Replies: 38
Views: 3,097
Posted By bilu
IMHO softpulldown+detc or pulldown.exe+detc...

IMHO softpulldown+detc or pulldown.exe+detc should use -ofps 23.976, but softpulldown alone should use -ofps 29.97 fps.

softpulldown isn't capable of creating MPEG-2 RFF flags like pulldown.exe...
Forum: Video Encoding and Conversion 04-12-2004, 11:23 AM
Replies: 21
Views: 1,867
Posted By bilu
Then you'd better take a look at -vf noise. ...

Then you'd better take a look at -vf noise.
Constant noise may be the answer to keep a bitrate over 150 Kbps.

Bilu
Forum: Video Encoding and Conversion 04-12-2004, 10:39 AM
Replies: 21
Views: 1,867
Posted By bilu
Unexplored territory: My next tests...

Unexplored territory:



My next tests will focus on these, I hope to be able to slow the overquantizing in the Neo Genesis Evangelion stream :roll:


Bilu
Forum: Video Encoding and Conversion 04-12-2004, 10:33 AM
Replies: 21
Views: 1,867
Posted By bilu
It depends on the source. Right now the minimum...

It depends on the source. Right now the minimum lmax value I could achieve was 6, but was trial-and-error to get there.


It's normal, just to say "buffer isn't full yet". ;)


I don't know,...
Forum: Video Encoding and Conversion 04-12-2004, 09:56 AM
Replies: 38
Views: 3,097
Posted By bilu
Are you doing DVDs with this framerate? 8O ...

Are you doing DVDs with this framerate? 8O

Bilu
Forum: Video Encoding and Conversion 04-12-2004, 07:28 AM
Replies: 21
Views: 1,867
Posted By bilu
Don't set vrc_minrate. About underflows, don't...

Don't set vrc_minrate.
About underflows, don't limit max quantizers.

The last settintgs on rds_correia guide were my settings until vmesquita and incredible found out that vrc_minrate screws avg...
Forum: Video Encoding and Conversion 04-11-2004, 09:50 AM
Replies: 21
Views: 1,867
Posted By bilu
Test 1: dark underwater scene from "The Abyss" ...

Test 1: dark underwater scene from "The Abyss"
Test 2: scene from "Read Or Die" anime
Test 3: intro from "Neo Genesis Evangelion"

Same scene is used during each set of tests.


Bilu
Forum: Video Encoding and Conversion 04-11-2004, 06:44 AM
Replies: 561
Views: 31,800
Posted By bilu
Seems it's not temporary. So let's forget about...

Seems it's not temporary. So let's forget about minrate.

http://sourceforge.net/mailarchive/message.php?msg_id=6860343


Bilu
Forum: Video Encoding and Conversion 04-11-2004, 05:58 AM
Replies: 12
Views: 1,413
Posted By bilu
This thread is obsolete. vrc_minrate affects avg...

This thread is obsolete. vrc_minrate affects avg bitrate.

Extensive tests without vrc_minrate
http://www.kvcd.net/forum/viewtopic.php?t=10229
Forum: Video Encoding and Conversion 04-11-2004, 05:56 AM
Replies: 11
Views: 1,155
Posted By bilu
Thread obsolete. vrc_minrate affects avg bitrate....

Thread obsolete. vrc_minrate affects avg bitrate.

Extensive tests without vrc_minrate
http://www.kvcd.net/forum/viewtopic.php?t=10229
Forum: Video Encoding and Conversion 04-11-2004, 05:55 AM
Replies: 53
Views: 3,126
Posted By bilu
@VMesquita Re-did a lot of testing. ...

@VMesquita

Re-did a lot of testing.

Extensive tests without vrc_minrate
http://www.kvcd.net/forum/viewtopic.php?t=10229


Bilu
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