Using Avisynth for Anamorphic encoding H264

[San07]

What all plugins can be used for Anamorphic encoding in H264 iam very new for encoding process ur guide will be helpfull


PLzz Guide me

If anything wrong also guide me.

[Blue_MiSfit]

1) You're not doing anamorphic encoding (from the looks of it). You're lanczos4 resizing down to square pixels. To encode anamorphic, leave video un-resized, and set DAR when muxing.

2) You don't need ConvertToYV12() at the end. The script is YV12 all the way through.

3) SeeSaw may or may not be needed. Try with and without.

~MiSfit

[San07]

1) You're not doing anamorphic encoding (from the looks of it). You're lanczos4 resizing down to square pixels. To encode anamorphic, leave video un-resized, and set DAR when muxing.

2) You don't need ConvertToYV12() at the end. The script is YV12 all the way through.

3) SeeSaw may or may not be needed. Try with and without.

~MiSfit

Ok then i want with SeeSaw if Lancoz Resize should not be Used

can u give a clear AviSynth usage script in ur view for Anormphic

Anormphic i gave Resize to Achieve mod16

[Blue_MiSfit]

What is the aspect ratio of your source?

[smok3]

If you want to make your own FLVs using VP6, then check out Sh0dan's page, and make sure you use VP6's Advanced Sharpness Profile.

you mean 'heightened sharpness profile'?

sorry for offtopic.

[San07]

What is the aspect ratio of your source?

FPS : 23.976

Container : MP4

Source : DVD5

RunTime : 2:39:45


I need some Advice also for encoding Anormphic Plzz

Iam new to this encoding process....

[Leak]

Aspect Ratio : 23.976
That's obviously a frame rate, not an aspect ratio.

Common aspect ratios are 4:3 (1.333), 16:9 (1.777), 1.85, 2.0<something> and so on...

np: Proem - Live @ LSR 03-19-2006 (Merck Fragments)

[Blue_MiSfit]

Yeah... what he said :)

Post a VOB sample maybe..

~MiSfit

[San07]

Sorry For The Mistake ITU 16:9 NTSC (1.822784) NTSC ALL Region

[San07]

Yeah... what he said :)

Post a VOB sample maybe..

~MiSfit

Click Here For VOB Sample (http://www.mediafire.com/?cmdudtnktwy)

[Burst]

MeGUE correctly calculate DAR for anamorphic encoding.
Height=1.822784*480*(720-2-2)~870.076
Width=480-58-56=366
DAR=870.076/366~2.377~5943:2500
Change of the sizes with lanczos (or other resizers) is necessary for the further encoding (366 is only Mod2 resolution).

[smok3]

your script seems fine (at least my calc thinks so)
http://somestuff.org/resizeCalc.php?ssmw=720&ssmh=480&sar=1.215&sar2=&CT=58&CL=2&CR=2&CB=56&trw=720&dar=1.215&dar2=&mod=&padw=&padh=&css=&doit=true

# pixels = 264960, DAR error = 0.012 - really small dar error when you mod16 your output resolutions
# Crop(Left, top, -right, -Bottom)
Crop(2,58,-2,-56)
LanczosResize(720,368) # min mod16 # warning, upscaling

nothing to calculate considering aspect ratios, just use sar signaling with x264 or par with mp4box (dunno how is that handled in megui)

[San07]

My video bitrate will be 1090

[smok3]

san07: try to crop such as that your final x and y will be mod16.

Crop(8,56,-8,-56) # should give you 704x368

[San07]

san07: try to crop such as that your final x and y will be mod16.

Crop(8,58,-8,-56) # should give you 704x368

ok


Does it need anyother changes.......:)


& anyother additional plugins

[smok3]

uhm, did you edit that or i missed that?
remove this line;
Lanczos4Resize(720,368) # Lanczos4 (Sharp) "Resize to mod 16"

[San07]

uhm, did you edit that or i missed that?
remove this line;
Lanczos4Resize(720,368) # Lanczos4 (Sharp) "Resize to mod 16"

I Editted it now

Removed anyother changes need r is it perfect now..:)

[smok3]

actually croping should be;

Crop(8,56,-8,-56)

[Blue_MiSfit]

Looks good :)

[San07]

actually croping should be;

Crop(8,56,-8,-56)

Atlast is it perfect or not.......:)

[San07]

Looks good :)

Its all with ur's help and smok3's help


Thank u........:)