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Author Topic: Better G1 video instructions - NO STRETCHING!  (Read 1575 times)
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teckel
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« on: October 27, 2008, 05:17:37 pm »

This is not a duplicate video conversion post.  This doesn't just give instructions on how to make a video, but how to do it with high quality, so the movie is the correct aspect ratio, and movies filmed in Panavision and other higher aspect ratios are always shown in normal 16x9 widescreen.  Also, this is for DVD rips from widescreen sources (everything I have is widescreen).  If you're doing TV shows or something else at 4:3 this won't work (I can give those instructions as well if there's demand for it).

First, I assume everyone is already using SUPER © for G1 video conversion, but if not, here's the link and how to download it:

http://www.erightsoft.net/SUPER.html#Dnload

Click "Start Downloading SUPER" towards the bottom of the page, then "download and use" towards the top, and finally "Download SUPER © setup file" towards the bottom.  (the site requires this for ad views or something, but it is free so it's worth the hassle).

SUPER © Setup:
Codecs:MP4H.264  AAC LC
Video:480:2703:2  23.976480kbps(yes, you set the video to 480x270)
Audio:441002  96kbpsDefault
Options:Hi Quality:OFF  Top Quality:OFF
Pad:Top:24Bottom:26  Left:0Right:0
Crop:Top:0Bottom:0  Left:CalcRight:Calc

While everything else stays the same from movie to movie, the Calc options above need to be calculated depending on the resolution of the video source.  I'll quickly give the calculation and then give an example.  The calculation is ( Width - ( Height * 16 / 9 ) ) / 2.   Width and Height are of the source video and the result would be what you would select for the left and right crop.

Here's a couple examples from my DVD rips:
  • 886x480 source video: ( 886 - ( 480 * 16 / 9 ) ) / 2 = 16 (set the left and right crop to 16)
  • 1128x480 source video: ( 1128 - ( 480 * 16 / 9 ) ) / 2 = 137 (set the left crop to 136 and the right crop to 138)
  • 852x480 source video: ( 852 - ( 480 * 16 / 9 ) ) / 2 = -0.7 (this movie is already 16x9 so you can turn Crop OFF)

That's it!  Perfect aspect ratio, no stretching, and very high quality.  Oh, and I would suggest that when you playback a movie TURN ON AIRPLANE MODE!  (Home, Menu, Settings, Wireless controls, Airplane mode).  The phone searching for GSM, Edge, 3G, Bluetooth, Wi-Fi, GPS, and apps trying to use connections will cause your video to slow down, pause, or even fail.  As a bonus, it will also greatly extend video viewing time.

Other information:
For high quality, I went with 480kbps video and 96kbps audio.  When doing samples, I tested many bit rates and found 480/96kbps to be the perfect balance between quality and file size.  A 90 minute movie will be about 380MB using these settings, this allows me to have about 8-9 movies on a 4GB card, plenty for me.  You can sacrifice quality for a smaller file size by using 336kbps video and 64kbps audio which will result in the same 90 minute movie being about 265MB.

23.976 frames per second is what all DVD's of movies are filmed at as movies are all shot at 24 frames per second.  Using 25 frames per second or 29.97 or 30 will just LOWER the quality because the converter will have to create averaged frames or duplicate previous frames to generate more frames than the source video has.  If the source movies you're converting from are not 23.976 already, whoever ripped it did so incorrectly.  In the future, make sure you always rip movies from DVD at 23.976.

You should always use the 3:2 aspect ratio in SUPER © as that's what the G1 format is.  If you don't select 3:2, if you preview the movie on your computer it will look different than on your G1 because it will stretch it on your computer.  Basically, keeping it always at 3:2 no matter what the source will allow you to preview videos on your computer and they will look the same on your G1 as well.

Tim


« Last Edit: October 28, 2008, 02:41:19 am by teckel » Logged
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« Reply #1 on: October 27, 2008, 06:20:20 pm »

awesome... i'll try this out when I get home.

BTW, is anyone else experiencing lag when running videos on the G1?  It seems like the frames refresh once every half second or so when I run videos.  I followed the instructions on the sticky at the top of this forum.

Also, is anyone else experiencing out-of-sync video and audio when using Super C?  Any tips would be appreciated.
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« Reply #2 on: October 27, 2008, 07:22:32 pm »

I'm going to add a link to this post in the other video conversion thread's first post.  Very good write-up.

....unless dLirious adds it to his post.  I hadn't noticed how much had been added to that.  Wink
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teckel
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« Reply #3 on: October 27, 2008, 07:47:54 pm »

awesome... i'll try this out when I get home.

BTW, is anyone else experiencing lag when running videos on the G1?  It seems like the frames refresh once every half second or so when I run videos.  I followed the instructions on the sticky at the top of this forum.

Also, is anyone else experiencing out-of-sync video and audio when using Super C?  Any tips would be appreciated.

Try turning on airplane mode on your phone.  I included instructions on doing this in my post.  I found videos played much better and battery life was vastly longer as well.  Also, it fixed out of syc audio as well.

If you're still having a problem, try turning your G1 off and try again.  It could be you have something running in the background that's causing it.

Tim
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« Reply #4 on: October 28, 2008, 10:50:19 am »

Very nice instructions.  Thank you.
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teckel
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« Reply #5 on: October 28, 2008, 09:43:44 pm »

Very nice instructions.  Thank you.

You're very welcome.  I'm somewhat of a perfectionist so you should really enjoy the results.

Also, here's the instructions for doing 4:3 non-widescreen videos...

SUPER © 4:3 Non-Widescreen Setup:
Codecs:MP4H.264  AAC LC
Video:432:3203:2  29.97 or 23.976  480kbps   (yes, you manually set the video to 432x320)
Audio:441002  96kbps  Default
Options:Hi Quality:OFF  Top Quality:OFF
Pad:Top:0Bottom:0  Left:24  Right:24
Crop:Crop:OFF

The Green settings are the ones you change for 4:3 video.  There's no calculation because the source is a fixed 4:3 aspect ratio.  Also, you would choose 29.97 or 23.976 depending on what the source was.  Movies are always 23.976 and TV is always 29.97.  You could also look at the source video FPS and just match it.  If everything was ripped correctly, it would only ever be 29.97 or 23.976.  But, I'm sure people rip things incorrectly so you may see 30fps, 25fps, 24fps, or others.  I guess it may just be best to always look at the FPS of the source video you're converting and just match it as it would be better to not degrade something further that was already degraded because the wrong frame rate was used.  But, going forward make sure you only ever rip movies and video at either 29.97 or 23.976 as that's what all TV, DVD's, and Blu-ray's are recorded at.

Tim
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« Reply #6 on: October 28, 2008, 10:47:41 pm »

Gonna try this out tonight if I have time. Thanks for the detailed write up!!
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« Reply #7 on: October 29, 2008, 12:48:24 am »

Just a quick question how do you find out what what ratio the file is in? Like 886x480 or 1128x480.
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« Reply #8 on: October 29, 2008, 01:02:46 am »

Here you go, this should help Smiley

http://forums.tmonews.com/index.php?topic=3261.msg72086#msg72086
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teckel
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« Reply #9 on: October 29, 2008, 03:10:08 am »

Just a quick question how do you find out what what ratio the file is in? Like 886x480 or 1128x480.

When you move the file into SUPER, just double click on the file name and it will display all kinds of information including the source resoution and frame rate.  Or, you could view Properties in Windows, or play the video on your PC and get the Preferences.  There's many ways of getting the resolution of the video you want to convert.  Also, it's important to note that we're not just getting the aspect ratio, but the actual resolution, because we're cropping off the sides to make it fit to 16x9.

Tim
« Last Edit: October 29, 2008, 04:40:03 pm by teckel » Logged
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