Can Megui create this kind of quality?

[hollywood10s]

I'm trying to figure out what I can do different in my encoding using Megui to create videos with this kind of quality with such low bitrate. Here is an example of what I am talking about. (http://3172.voxcdn.com/DEMO720-Heroes500.html) Here is what he mentions about some of the settings he uses.

"I use a mix of Ffmpeg, x264, Mencoder and Nero AAC. Here some parameters used:
5 reference frames, 5 B-frames, authomatic B-Frames, B-pyramid enabled, adaptive macroblock type, advanced Trellis on, Subq=7, advanced exagon search, deblocking filter with custom alpha and beta parameter, three pass encoding..."

What could I do in Megui to create the same kind of quality? There has to be something that is different here. I'm encoding HD quality files and want to be able to compress them with this kind of quality for my website. Thanks for the help.

Chad

[Dark Shikari]

Just choose HQ-Slow, it should be fine for your purposes.

[hollywood10s]

Well the video files I have created so far work very well, I was just wondering if anyone here knew of anyway to tweak the settings even more to get the kind of quality in the example above? It is very impressive and I cannot get the same quality using the insane profile with my HD content so he must be doing something extra to achieve this at those resolutions. Anyway, I guess I will keep messing around with my settings. Thanks

[Atak_Snajpera]

Use strong denoiser. I recommend MSU Denoiser+hqdn3d

[lance79]

Here's a sample 720p @ 500 kbps with 128 kbps audio, encoded with automkv, quicktime profile, default Hqdn3d(4,3,6,4.5) filter.

http://members.lycos.nl/lance79/sample.html

[hollywood10s]

Thats more what Im talking about. Nice video!! My source files are HD AVCHD. I will try out the Hqdn3d filter and see how it looks. Any other opinions on filters to try out in avisynth for High Definition source files? Again I will be downsizing these from 1440x1080 to 720x405 with the option to go fullscreen.

[tetsuo55]

this acually looks extremely interesting.

Especially in that the encoder says nothing about avisynth scripts.

If i understand him correcty he is taking an unaltered source and converting that to h264 directly

[hollywood10s]

Thats what he apears to be doing, but maybe something has been left out. Maybe someone else has an idea of what process is being used here?

[jeffy]

Taken from the Flash file:
options: cabac=1 ref=4 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=7 brdo=1 mixed_ref=1 me_range=32 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 chroma_qp_offset=0 threads=6 nr=0 decimate=1 mbaff=0 bframes=4 b_pyramid=1 b_adapt=1 b_bias=0 direct=3 wpredb=1 bime=0 keyint=250 keyint_min=25 scenecut=40(pre) rc=2pass bitrate=500 ratetol=1.0 rceq='blurCplx^(1-qComp)' qcomp=0.90 qpmin=10 qpmax=51 qpstep=4 cplxblur=20.0 qblur=0.5 vbv_maxrate=0 vbv_bufsize=5000 ip_ratio=1.40 pb_ratio=1.30

[hollywood10s]

This is good information!! I need to do a little more research because some of these settings I have not seen before (like deblock=1:0:0, deadzone=21,11) I know what most mean. Can these kind of settings be implamented into Megui? Maybe someone can elaborate on what some of these settings stand for?

[Dark Shikari]

This is good information!! I need to do a little more research because some of these settings I have not seen before (like deblock=1:0:0, deadzone=21,11) I know what most mean. Can these kind of settings be implamented into Megui? Maybe someone can elaborate on what some of these settings stand for?Those settings are defaults. They're adjustable in MeGUI.

[hollywood10s]

So what is so differnet in the settings above to create such a good quality 500kbps video in 1280x720? Avisynth filters maybe?

[Plamen234]

the source material I suppose ...

[Plamen234]

@jeffy
Taken from the Flash file:
options: cabac=1 ref=4 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=7 brdo=1 mixed_ref=1 me_range=32 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 chroma_qp_offset=0 threads=6 nr=0 decimate=1 mbaff=0 bframes=4 b_pyramid=1 b_adapt=1 b_bias=0 direct=3 wpredb=1 bime=0 keyint=250 keyint_min=25 scenecut=40(pre) rc=2pass bitrate=500 ratetol=1.0 rceq='blurCplx^(1-qComp)' qcomp=0.90 qpmin=10 qpmax=51 qpstep=4 cplxblur=20.0 qblur=0.5 vbv_maxrate=0 vbv_bufsize=5000 ip_ratio=1.40 pb_ratio=1.30

can you tell me please, how did you extract the used settings?
bwt I use avinaptic for this.

p.s.: any help how I can save the video from http://3172.voxcdn.com/DEMO720-Heroes500.html

[poisondeathray]

p.s.: any help how I can save the video from http://3172.voxcdn.com/DEMO720-Heroes500.html


Use orbit downloader; start the grab++ plugin before you open up the page.

[Dark Shikari]

@jeffy


can you tell me please, how did you extract the used settings?
strings filename | less

search for x264.

[smok3]

the examples at
http://3172.voxcdn.com/DEMO720-Heroes500.html or
http://members.lycos.nl/lance79/sample.html

are about having a good source, see the camera DOF for example, you can't get close to that (without some serious lens system mods) with a consumer camcorder (they both look really annoying to my eyes encoding wise thought...)

edit: what you need is a custom camera rig, not a good encoder really, examples:
http://www.redrockmicro.com/rig_gallery/39.html (the box before the camera lens is the magic you are looking for, kinda DOF faker)
edit2: what is DOF:
http://en.wikipedia.org/wiki/Depth_of_field
edit3: what is good source in simple terms:
- use DOF where is needed to blur unimportant info
- use tripod, steadycam, whatever to make motions smooth - or the way you want them to be
- learn about the composition (there should be plenty to read)
good book to have http://www.amazon.com/Visual-Story-Seeing-Structure-Media/dp/0240804678
- use placebo to enligten your shots, good audio will have the picture appear better as well is one example

edit4: the same DOF joke is faked in CG movies as well, surprise, surprise

http://somestuff.org/01231.png
frame 1231 from Elephant Dreams.

[jeffy]

@jeffy


can you tell me please, how did you extract the used settings?
bwt I use avinaptic for this.

p.s.: any help how I can save the video from http://3172.voxcdn.com/DEMO720-Heroes500.html

:o It was a little tricky...
Watch the file in IE, in opened Servant Salamander find the folder where the file is (eg. C:\Documents and Settings\<username>\Local Settings\Temp\fla123.tmp), close the browser, don't do much of something, in opened Servant Salamander find the folder where the file was and Undelete it (it was not in the folder anymore), open in Hex editor (F3) of Servant Salamander then copy the settings used (common CTRL+C). I'm sorry for a delay in answering.
http://altap.cz/salam_en/index.html