On Wed, 21 Jan 2015 15:38:45 GMT, Sadsack <Sads@ck.com> wrote
> I've just created my first 480p preset, andtesting a 1.5 hour movie
> now, on this dual core lappy with 8gb or ram its going to take around
> 6 and a half hours..... I did do a 10 sec test and it looked
> great,..... both cores are running at 100% lol.... but still way to
> long to wait.
>
> You can speed up the encode by increasing the x264 preset speed, I used
> fast on my old PC. You will get less compression (larger file size) but a
> similar video quality.
> I normally check the filesize after 5% progress and if the file is going to
> be too large I abort and increase the crf .
> --
> Pat
Yep I created a "User Preset" following the guides from that site I found,.... I did one for "MP4
480p AC3", and part of that was to have the x264 on fast.
I noticed one small problem with the short 10 sec test that I watched, and that was the right hand
side of the playback had a very slight black bar on the edge, something that would not go away, even
if I tried to shrink WMP.
I think it's something to do with "Picture Tab" and that the box that is supposed to be called "Keep
aspect ratio" seems to be missing on this version.
Then again the DVD that I'm testing it on is "Swallows & Amazons" from 1974. it's plain stereo, Pal,
R2, 4:3 Full Frame,....
Before doing this one, I've tried many times to get the aspect ratio correct, and the auto feature
on Handbrake never seems to get it right.
But you know the old adage, "Dont blame the tools, Blame the... ect ect lol
Under source it states 720x576, Aspect Ratio 1.33.
I found some interesting stuff whilst searching for clues and answers, ... you never know when it
might come in handy..
720p is 1280 x 720 ..
1280:720 = 16:9
1280:544 = 2.35:1
Rather than include the black borders in a 2.35:1 aspect ratio (cinemascope) trailer,
Apple have cropped the image to 1280x544.
------------------------------
What is HD?
HD means High Definition, and its most used standard resolutions are two:
1920x1080 (Full HD)
and
1280x720 (HD)
Many times when you are going to download an HD movie torrent, you look at the name and read 720p or
1080p...
but when you look at the technical description, you start to read "strange" resolutions like
1920x816 or 1280x544 etc,etc.
So you ask to yourself: is that real HD?
Long story short: yes, it is.
Most of the movies we use to watch, often come with black bars on top/bottom of the screen.
In that case, the whole image + the bars gives you the resolution of 1280x720 or 1920x1080.
Now, those black bars are just... black. Nothing going on there. Black.
That's why us encoders, 99% of the time, crop the black bars away and encode only the actual image.
It allows us to save some bits on the filesize,
leaving the movie picture intact.
So when this happens, depending on the movie aspect ratio, 1920x1080 without the black bars will
become 1920x816. 1280x720 without the black
bars will become 1280x544 for example, etc...
To make the concept even more clear i made a .gif which will show you the practical example:
image
Here's the list with the various Aspect Ratios and related Resolutions:
1080p
AR / Resolution
1.333:1 = 1400 x 1080
1.666:1 = 1800 x 1080
1.839:1 = 1920 x 1044
1.846:1 = 1920 x 1040
1.853:1 = 1920 x 1036 (mod16)
2.341:1 = 1920 x 820
2.352:1 = 1920 x 816 (mod16)
2.364:1 = 1920 x 812
2.376:1 = 1920 x 808
2.388:1 = 1920 x 804
2.400:1 = 1920 x 800 (mod16)
2.412:1 = 1920 x 796
720p
AR / Resolution
1.333:1 = 960 x 720
1.666:1 = 1200 x 720
1.777:1 = 1280 x 720
1.839:1 = 1280 x 696
1.849:1 = 1280 x 692
1.860:1 = 1280 x 688 (1.85:1 mod16)
2.335:1 = 1280 x 548
2.352:1 = 1280 x 544 (mod16)
2.370:1 = 1280 x 540
2.388:1 = 1280 x 536
2.406:1 = 1280 x 532
2.424:1 = 1280 x 528 (2.40:1 mod16)
------------------------------------
One thing I have noticed, even though both cores are at 100%, I'm still able to do anything else I
want. Something I've never been able to do before when using AMD chips.
Although I'm typing this on another p.c., trying not to disturb the other one.
I'm still curious though about the Pheonix nights rips,.... The chap that posted them said that they
were from DVD's... but the avi's posted were, I believe HD,..
Codec ID : H264
Duration : 23mn 55s
Bit rate : 2 398 Kbps
Width : 1 024 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 25.000 fps
I'm not to sure but isn't this 16:9 HD Widescreen.
I always thought that the max you can get from DVD5 or 9 material was 720x576... It's probably got
more to do with the software used to do the conversion.
I was going to give freemake a go, until I read about the amount of changes it makes to the
registry,... and lots of backdoor things going on. (not that it's bad software, just the people
behind it).
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