MeGUI Custom x264/AVC video profiles. [Archive] - Page 9

Deinorius

18th May 2006, 07:34

I could do that. It would be better, but to measure better compression this way should do it.

I think, I can use for the same source the same .stats file, because settings in 1.pass are identical, right?
It would speed up tests extremely.

I will get some tests on an Opteron 144@2250 too. So we will see, how speed differs from the settings. But he will use newest Sharktooth's profile.

aguy

18th May 2006, 13:04

Hey Sharktooth,

Just wondering where you found the specs for the HD-DVD profile. I have been able to find the blu ray specs but not the hd-dvd specs in my searching.

Thanks

Sharktooth

18th May 2006, 13:13

Here and there this forum.
Im not even sure it is completely compliant, that's why i asked for testers.

@Deinorius: i thought you were using constant quant... crf is not good for that comparison.

berrinam

18th May 2006, 13:25

You can use the same first pass stats file if the settings you use for first pass are the same. Since you are testing turbo, that's probably the case.

I'm not sure how constant quant fits into all of this, but I still imagine that 2pass is the best scenario to test the efficiency of settings, because it ensures that filesizes are the same, so a visual judgement is the be-all-end-all.

Sharktooth

18th May 2006, 13:31

then you'll need PSNR or SSIM or whatever to distinguish one encode from the other...

lazyn00b

19th May 2006, 16:27

I added the first EXPERIMENTAL profile for HD-DVD compatibility.
Please advice me if there are wrong settings, it does not work or if it's just too slow...
The new profiles require MeGUI ver 0.2.3.2134.

Ben Waggoner (Microsoft) over at AVS Forum says 250 frames is too long for GOP length, but he can't tell me the exact limit because of NDA. FWIW, Apple's DVD Studio Pro docs show the GOP for HD DVD can be set from 0.5 second to 5 seconds, which would be 12 to 120 frames for film content. I am still trying to find out exact specs, so I will post back when I find them.

Mainconcept's HD DVD preset shows 2 B-frames, so maybe it is best to use 2 instead of 3 to be on the safe side.

berrinam

19th May 2006, 23:02

then you'll need PSNR or SSIM or whatever to distinguish one encode from the other...Well, if you do it by CQ, then you are using a Quant metric instead. Who knows how good that is? But with 2pass, you can resort to trusting your eyes, whereas you can't with anything else (because the filesizes aren't the same, so visual comparisons are useless).

mrkazador

22nd May 2006, 05:45

Question.....
Would HQ-Insane be good for an hd source?
Encoding time is not important to me.....

foxyshadis

22nd May 2006, 06:06

All of the HQ profiles are good and slow, Insane extremely so. "HD" isn't nearly enough of a reference, so just try a few profiles and see what you think.

Sharktooth

22nd May 2006, 14:19

v26: updated SA-HD-DVD profile.

smok3

22nd May 2006, 14:43

Sharktooth; it would be actually great if you could provide the profiles as x264 command lines as well as xml.

Sharktooth

24th May 2006, 17:04

ill see what i can do

buzzqw

24th May 2006, 18:05

@smok3

quick way: open megui, load a profile , check show command line.

BHH

Golgot13

27th May 2006, 03:07

I have HD DVD player buy in USA. When I put H264 video from x264, I have warning messages
about maximum bitrate (--vbv maxrate at 12000kps and --vbv bufsize use ) in HD DVD authoring
software (professional).
There is some pic over the maximum bitrate of HD DVD specification.

And when I play in HD DVD player (DVDR with HD DVD image), the video block when there is pics
of maximum bitrate.

The Sonic Scenarist tutorial say the GOP must be less than 0.606 second,
so 18 frame in NTSC framerate (29.97) and 15 frame in PAL framerate (25).
for AVC (H264 video) and VC1.
The number of B frame is 2 no more.
No information about MBAFF and PAFF use (I don't recommend it because
there is not lot of hardware chipset that support it).

I need to know how I can encode in CBR with MeGui (-ratetol at 0 don't work -> change at 0.1)
to test video in HD DVD player.

And we don't need to put maxbirate at 25Mbit/s because at 10Mbit/s and ABR at 8Mbit/s
the picture is beautiful (LCD Samsung 42" HD Ready).

Golgot13

berrinam

27th May 2006, 03:18

Sharktooth; it would be actually great if you could provide the profiles as x264 command lines as well as xml.

ill see what i can doI actually think this might be worth integrating into MeGUI, to extend the 'export profiles' function -- it could export them in a plain text or .bat format (couldn't be too hard).

CruNcher

28th May 2006, 03:52

Golgot13

29th May 2006, 01:05

The big problem with x264 encoder is " NAL_HRD_PARAMETER ".
In this header, somes professionnal software read information about H264 video file.
The most import information is the bitrate (there is a minimum and a maximum
to be compliant with HD DVD and BluRay compliant).

The last version of Scenarist 4 don't accept file without this header.
I must to use a older version to mux the video data. And demux (with transport stream software)
the EVO file to have good file (with the most important header: NAL, VUI,...)

I recommend to encode in CBR mode but I don't know how I can do this with MeGui
(no option in MeGui to encode in CBR ???)

Golgot13

Golgot13

29th May 2006, 01:17

Golgot13 could you please try this encode with Scenarist 4

http://rapidshare.de/files/19907080/Silent_Hill-Trailer-High_Profile-5.1-LC-AAC-8000kbps.part1.rar.html
http://rapidshare.de/files/19907412/Silent_Hill-Trailer-High_Profile-5.1-LC-AAC-8000kbps.part2.rar.html

thx in advance

Scenarist 4 accept mp4 container but with only video stream H264 (compliant with
HD DVD and BluRay specification, with all headers....)
AAC audio track is not compliant HD DVD/BluRay.

Golgot13

Chainmax

1st June 2006, 20:06

On the iPod profile, the "I4x4" and "P4x4" macroblock options are not greyed out but they aren't enabled either. If I enable them, will the encode still be playable on an iPod?

Sharktooth

2nd June 2006, 03:09

On the iPod profile, the "I4x4" and "P4x4" macroblock options are not greyed out but they aren't enabled either. If I enable them, will the encode still be playable on an iPod?
no...

Chainmax

2nd June 2006, 12:50

Then shouldn't they be greyed out as well?

Sharktooth

2nd June 2006, 12:54

no... ipod profile is just a MeGUI preset.. not a h.264 profile.
in megui x264 conf. window the only features that are grayed out ar the ones locked by h.264 levels and profiles.

Chainmax

2nd June 2006, 15:18

I see, thanks for the info. About the SA-HD-DVD profile, what would the resolution limits be? Also, should a 640x480 encode made with that preset be playable on a standalone?

Sharktooth

3rd June 2006, 02:31

Resolution limits are imposed by the HD-DVD specs, you should search the forum or ask to someone who exactly know the specs.

Sharktooth

4th June 2006, 14:37

V27:
- Faster CQ profiles
- Modified HD-DVD profile

Chainmax

5th June 2006, 15:42

Resolution limits are imposed by the HD-DVD specs, you should search the forum or ask to someone who exactly know the specs.

The hardware players forum still doesn't have a spec list, which is why I was basically asking you where you got them from.

W3ird_N3rd

5th June 2006, 16:19

I tried but I can't figure it out. I installed the profiles, and I keep getting an error telling me the value for SelectedIndex is not valid when I select a profile. Tried searching this thread, Google, no result..

Doesn't happen to all profiles, only to the profiles I would like to use :D. The HQ at least.

Sharktooth

5th June 2006, 16:42

Update MeGUI...:
http://forum.doom9.org/showthread.php?p=824894#post824894

W3ird_N3rd

5th June 2006, 17:01

I already installed the latest version from x264.nl (the full package), didn't help. I also have the latest profiles.

[edit]
Ah, so the latest full package does not include the latest MeGUI..

Beave

12th June 2006, 03:11

Just to make certain: Is the SA-HD-DVD profile now the closest to encoding 1080i material to 720p or 1080p?

In another thread I learned that using HQ settings is actually overkill for HD resolutions. What I'm trying to say is: Is this profile only trying to get as close as possible to the possible future HD-DVD standard or does it actually make sense to use this profile for the personal TS HDTV streams to 720p conversions?

My goal is to find a pretty balanced setting concidering encoding speed, quality and decoding speed for 720p and 1080p targets.

Sharktooth

12th June 2006, 13:11

The profile is experimental and was made from the info i had gathered around.
I think it "should" be compatible with HD-DVD standard (provided you use the correct resolution and FPS) but since i dont have the specs i cant be 100% sure.
If anyone has a HD-DVD player (toshiba) or a software that can test the streams for compatibility we can test if it works.

shon3i

13th June 2006, 20:22

@Sharktooth can you make some presets with AQ patch, similar AQ like ateme aq if this possible.

Sharktooth

13th June 2006, 22:20

ateme AQ is completely different from x264 AQ.
Also, AQ settings depends too much on the source to be included into a profile.

shon3i

13th June 2006, 22:50

ateme AQ is completely different from x264 AQ.
Also, AQ settings depends too much on the source to be included into a profile.
Thanks for info, too bad, because i tryed it with some very dark movie (--aq-strength 0.8 and --aq-sensitivity 1) x264 AQ makes big improvments in quality and PSNR with 700kbps, but little blur picture but is not noticable.

Can you do some profiles aimed for 1CD rips where be might need using some CQM to incrase quality in bitrate range of 600-900kbps like AutoGK settings.

PS. Nice new avatar!

Sharktooth

13th June 2006, 22:56

Usually the best quantization for that bitrates is the standard one...
However it's possible to create softer matrices that will help reduce blocking (but will kill details). At that point i prefer rising deblocking filter settings instead, even if a quant matrix maybe "could" produce better results.

P.S. Thanks:)

desta

19th June 2006, 22:36

Thanks for info, too bad, because i tryed it with some very dark movie (--aq-strength 0.8 and --aq-sensitivity 1) x264 AQ makes big improvments in quality and PSNR with 700kbps, but little blur picture but is not noticable.
I'm no expert, but I would've thought setting the sensitivity to 1 would drastically increase blocks and other artifacts?

I used "--aq-strength 0.8 and --aq-sensitivity 5" on a test encode that had a bitrate of around 1700kbps, and the output was full of blocks. When I raised the sensitivity above 10, they went.

Sharktooth

20th June 2006, 01:02

what does that have to do with my custom MeGUI profiles?

desta

20th June 2006, 01:51

I apologise for commenting about another comment that also had nothing to do with your custom MeGUI profiles...

haubrija

20th June 2006, 17:46

Chainmax

24th June 2006, 16:17

If I recall correctly, Nero can already author HD-DVDs. I don't know what codecs does it accepts as input though.

Ghim

30th July 2006, 10:02

I have two small suggestions for the PD-PSP profile:

- The PSP 2.80 firmware has added quite a few things in H264 support. The PSP can now read standard MPEG-4 containers (no more need for Atomchanger !!!), accept any framerate...
However, Sony also introduced a new check on the H.264 level set during the encoding and all files encoded in Main Profile with a level > 2.1 will be rejected. It would be nice to change the default level in the PD-PSP profile to 2.1.

-Starting with firmware 2.60, the seeking is more accurate. However, the PSP will freeze for some reason during the seeking if the file has been encoded with the PD-PSP profile. This is due to the 3 B-Frames and the 2 Reference Frames settings. Putting 1 B-Frame and 1 Reference Frame solves this issue. (see this post for more information: http://forum.doom9.org/showpost.php?p=755401#post755401)

Doom9

30th July 2006, 11:44

he PSP 2.80 firmware has added quite a few things in H264 support. The PSP can now read standard MPEG-4 containers (no more need for Atomchanger !!!), accept any framerate...Have they finally seen the light? I also noted that the filename limitation is no longer in effect.. so finally a halfway usable firmware.. the downside is that with all the new versions you can't run homebrewn software so perhaps it would make sense to have multiple profiles for different firmware revisions.

Sharktooth

31st July 2006, 02:31

v28: Updated PSP profile with Level 2.1.

Question: what's the iPod highest supported level?

elguaxo

31st July 2006, 09:45

Now HQ-Slow, Slower, Slowest, Insane have VBV Maximum Bitrate: 25000
Max local bitrate, what is that?

leiming2006

31st July 2006, 12:02

About the title:
The date is wrong.
It's July, not September.

Sharktooth

31st July 2006, 12:42

Now HQ-Slow, Slower, Slowest, Insane have VBV Maximum Bitrate: 25000
Max local bitrate, what is that?
it's the new default for all bitrate based profiles. it sets the maximum bitrate cap.

About the title:
The date is wrong.
It's July, not September.
my head was already on september... :D

Sharktooth

2nd August 2006, 13:04

v29:
Updated iPod profile (Lvl 1.3 and max bitrate 768kbps)
Some already "not-too-slow" profiles got a speed boost

Sharktooth

6th August 2006, 15:07

definatly not the right place.

Taxidermista

22nd August 2006, 16:10

Couple of questions about HD-DVD profile:

- Sonic Scenarist tech specs mention AVC (H.264) Main/High Profiles, Levels 3, 3.1, 3.2, 4, and 4.1 for h.264 assets. Should it be advisable to restrict level to 4.1 in HD-DVD profile?

- There's a few tips in Apple DVD Studio Pro 4.1 docs about h.264 assets. I don't know exactly if they are useful for the HD-DVD profile:

SD resolutions - Bitrate limits: from 0.5 Mbps to 15 Mbps
HD resolutions - Bitrate limits: from 1.5 Mbps to 29.4 Mbps
Key frame interval limits: from 0.5 sec to 5 sec (0.5 sec increments)

I'm gonna try to import some x264 video assets in Studio Pro and see what happens.

Sharktooth

23rd August 2006, 12:41

Ehr... it was already restricted to 4.1 but it seems it got somewhat mistakenly removed.
I'll fix it ASAP.
Regarding the bitrate, x264 rate control can be set to respect the maximum bitrate cap, but not the minimum.

EDIT:

V30: Restored the Level 4.1 limit in HD-DVD profile. The profile is made for HD content and may return sub-optimal results for SD.