How to change Aspect (encoding for iPod)?

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win-pod
Posts: 8
Joined: Sat Jun 02, 2007 7:52 am

How to change Aspect (encoding for iPod)?

Post by win-pod »

When I select a Title of DVD to encode
Aspect automaticly sets to 1.78.
As I understand it's 16:9 and
the Aspect of the DVD is 16:9,
but the video contains black stripes -
the full size is 720x576 and the actual size
of the video content is about 720x432.
So when I encode I get long-faces on the screen.
How to correct that?
win-pod
Posts: 8
Joined: Sat Jun 02, 2007 7:52 am

Post by win-pod »

For everyone, who has the same problem,
here is the solution I found.
So, if you have a DVD 720x576 16:9 with
black-stripes top-and-bottom of the picture, that
the height of one black-stripe is about 1/8 of full video height:
576/8=72,
so, the actual size of the video content is about 720x432,
and you want the encoded video on your iPod look like DVD,
use the following:
After selecting DVD source choose Presets->iPod (2.35),
you get:
Encoder: H.264(iPod)
Width/Height: 640x272

In Picture Settings select
Cropping Option: Manual
Left:8
Right:8
Top:76
Bottom:76

The 8 cropping for Left/Right is
for 2 thin vertical black-stripes,
that appear in my DVD only after
Chapter 11, if you don't have such
stripes you can leave 0 for Left/Right.
Audio/Video bitrate choose for yourself
(I left it like it is in the Preset) and press
Encode Video.

The aspect ratio of the encoded video
should be the same as DVD.

Good encoding for everyone,
and BIG THANKS to developers
for HandBrake on Windows!
Davom
Posts: 5
Joined: Tue Jun 05, 2007 2:12 pm

Post by Davom »

I am real particular about getting the original aspect ratio correct and here's what I've found:
1. Select Mpeg4 as your encoder
2. Leave the Height / Width blank
3. Select No cropping under Picture settings

Every movie has ripped in the proper OAR for me with those settings.

Peace,

DM
PuzZLeR
Bright Spark User
Posts: 287
Joined: Tue Apr 24, 2007 4:01 am

Post by PuzZLeR »

Hey folks.

The anamorphic feature of HB adjusts this, or inputting an equivalent A/R with square pixels. However if you're encoding for the iPod, you have to encode with square pixels only. No?. Otherwise distortion.

For 4:3 (1.33 ), I would recommend 640x480 in square pixel format, which is quite obvious.

My question:
For 16:9 (or rather 1.78 ) I input 640x352 as the rez. Isn't that the best one for this A/R for the latest iPods?

(I would pick 640x360, but 360 is not divisible by 16 and HandBrake won't let me anyway.)
win-pod
Posts: 8
Joined: Sat Jun 02, 2007 7:52 am

Post by win-pod »

PuzZLeR,

For me 640x352 encodes with not original Aspect Ratio.
Only 640x272 with --crop 76:76:8:8 looks like original
video in DVD.
By the way, all my DVDs that I bought from Video Store
are 720x576 with such black-stripes top-n-bottom, so I think,
that's original DVD format.

Square pixels, if you mean pixel-blocks (big square pixels stick together
on solid swaths of color, like blue skies), every time I encode into H.264 I get them.
And it is not only HandBrake, other Encoders do so.
Probably, it's the problem with H.264 encoder on Windows,
cause I know that on Mac there's no such pixel-blocks.
Obviously, we should wait for new H.264-encoder on Windows...
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