MeGUI: General Questions and Troubleshooting Thread

[check]

simply manually crop yourself

[simonhowson]

Originally Posted by check

simply manually crop yourself

Why of course

Do I leave all the Smart Anamorphic Encoding alone? This project is for an iPod video, so I need it to be 640 X something, I don't want the final MP4 itself to be anamorphic.

Do I crop before resizing? I seem to get it to look right, but when I load that AVS file, it just goes back to too much letterboxing at the top and the bottom... I'm obviously doing something very wrong.

[check]

You're not doing anything wrong - the cropping dialog is just borked in that if you click preview after setting up crop, it will appear to crop more than what is actually stored. In other words, while it will store crop, resize, it will display crop, resize, crop! The workaround is to simply not click preview until you have perfected your crop. Other than that, you can do the cropping by hand with notepad + your favourite media player.

Also, in the final script cropping is always done before resizing, it doesn't matter what order you enable them in.

As for anamorphic - yes, you don't want to use anamorphic encoding for the ipod.

[simonhowson]

Originally Posted by check

The workaround is to simply not click preview until you have perfected your crop. Other than that, you can do the cropping by hand with notepad + your favourite media player.

Thanks for your help, but I'm still getting no where.

When I open the D2V file it is still anamorphically distorted. I have no idea why.



If I check resize, select 640 for the horizontal resolution, check suggest resolution (so that it uses the correct vertical res), then click preview. It will resize the image, but also correctly anamorphically decompress it. But since I've clicked preview I can't then crop the image properly...



So how do I work out the cropping manually? I'm interested in getting it as accurate as possible, without cropping part of the image.

[check]

The cropping should be done before you resize remember Just crop off the black matte, THEN check resize and resize it .

[simonhowson]

Originally Posted by check

The cropping should be done before you resize remember Just crop off the black matte, THEN check resize and resize it .

Dear God it worked... I'm so slow.

[B. W.]

Originally Posted by check

new ipods require special muxing - read the 5 page forum thread somewhere on these boards for more info.

In the readme for NicMP4Box, it says that a SAR must be written to the muxed file. That would mean checking this box if I wanted to make a One Click Profile?

[LiFe]

Heya Folk,

Sorry, just can't find anything in search on this one.

What exactly does Queue Analysis Pass do?

I want to run a 2 pass --crf encode in MeGUI - all my other settings are great, but how do I make it do the first pass and then the second?

Thanks.

[check]

@bw: no idea sorry, I've never done ipod muxing. ask in the long ipod thread.
@life: read the wiki! From memory it's in the glossary or FAQ.

[LiFe]

Hmm, managed to find 2 lines. Right, so that means 2 pass crf isn't implemented in MeGUI. Any chance of getting it implemented?

[check]

from the wiki, description of both constant quality modes in x264: http://mewiki.project357.com/wiki/Me...nstant_Quality
As you can see - MeGUI supports crf

[LiFe]

@check: Sorry, it doesn't say anything about 2 pass crf there.

[gino25]

i have a problem with megui. I use latest build, and i use autoupdate function, so all programs are up-to-date.

I want to use x264, and with others program all was fine. I used avs creator to create an avs as input (and i can view perfectly that avs, with a direct-show player like media player classic).

But when i compress it using megui i obtain always this result
http://www.megaupload.com/?d=8S3IWI77

I changed bitrate, resolution, and settings, but always i have videos similar to that (even if i change source file).

What is wrong?

[Sharktooth]

Originally Posted by LiFe

@check: Sorry, it doesn't say anything about 2 pass crf there.

2pass CRF? CRF doesnt need 2 passes... it's like CQ... single pass.

[Sharktooth]

Originally Posted by gino25

i have a problem with megui. I use latest build, and i use autoupdate function, so all programs are up-to-date.

I want to use x264, and with others program all was fine. I used avs creator to create an avs as input (and i can view perfectly that avs, with a direct-show player like media player classic).

But when i compress it using megui i obtain always this result
http://www.megaupload.com/?d=8S3IWI77

I changed bitrate, resolution, and settings, but always i have videos similar to that (even if i change source file).

What is wrong?

Something's really screwed i your encode.
Do you select or create a video profile before encoding?
Can you please describe what you exactly do?
Also, reading the guide wont be a bad idea.

[simonhowson]

I'm wondering if it is possible to burn in subtitles using MeGui?

I'm creating MP4 files to use on my iPod video, and I do not think the iPod can play subtitles. Hence I want to just extract the subtitle file, and burn it into the image. Is there any easy way to do this in MeGui? I've done it in StaxRip but don't know exactly how StaxRip performs the task. Is it an AvSynth filter added before resizing?

[LiFe]

@Sharktooth: x264 [error]: constant rate-factor is incompatible with 2pass.

Yes, I do see now : )

Unfortunately x264 just crashes after this error, rather than exiting nicely, if anyone wants to point this out to x264 devs.

It's a shame, 2 pass is a bit of a waste of time, but would mean more intelligent I frames and Auto B Frame Mode.

[check]

@simon: there is no method to do this automatically, but manually is easy. Download vsfilter 2.37 from somewhere (I think it's on free-codecs), and copy the vsfilter.dll into your avisynth plugins directory (you don't need to run any installer that comes with it). Then add textsub("path\to\subs.ass") at the bottom of your avisynth script and encode as normal

[simonhowson]

Originally Posted by check

@simon: there is no method to do this automatically, but manually is easy. Download vsfilter 2.37 from somewhere (I think it's on free-codecs), and copy the vsfilter.dll into your avisynth plugins directory (you don't need to run any installer that comes with it). Then add textsub("path\to\subs.ass") at the bottom of your avisynth script and encode as normal

Thanks for your help, but now I'm wondering how I create a text based subtitle file? I've only ever delt with idx subtitle indexes. What tool do I use?

[Sharktooth]

Originally Posted by LiFe

@Sharktooth: x264 [error]: constant rate-factor is incompatible with 2pass.

Yes, I do see now : )

Unfortunately x264 just crashes after this error, rather than exiting nicely, if anyone wants to point this out to x264 devs.

It's a shame, 2 pass is a bit of a waste of time, but would mean more intelligent I frames and Auto B Frame Mode.

Uhm, no... I and B-frames placement is decided during the 1st pass. So nothing will change.
2Pass CRF is like doing 2Pass CQ... It's useless.