MeGUI is one of the newer tools that has been designed with H.264 encoding in mind, while supporting other types of conversion, such as XviD. This guide shows you how to encode a H.264 (MP4) using MeGUI from a DVD as the primary example (instructions for converting other types of video files are also included).
This guide is aimed at intermediate users, basically users that are familiar with DVD conversion/backup and want to experiment with H.264 and MeGUI. As such, basic knowledge of DVD ripping and conversion is required, although brief instructions will be provided in any case.
Software you'll need (all freeware):
Step 1: Installation
Step 2: DVD Ripping
Step 3: D2V Creator
Step 4: AviSynth Script Creator
This step will use MeGUI's AviSynth Script Creator tool to create an AviSynth script. If you followed Step 3,
the AviSynth Script Creator tool should already be started with the D2V file created loaded. Otherwise, you'll need to load the media file you want to convert into the "Video Input" section.
AviSynth is able to open almost any video file that you are able to play with a Directshow based multimedia player, such as Media Player Classic or Windows Media Player. You may need to select the "All Files" option when opening the file to be able to see it (eg. FLV files). In most cases, you'll need to install a video codec, an audio codec and a splitter filter for the format you wish to convert.
For example, if you want to convert FLV files using MeGUI, you will first need to make sure you have the required video, audio and splitter filters to make FLV files playable in Windows Media Player. Instructions on how to do this can be found in the
FLV playback section of our
YouTube, Google Video Download and DivX Conversion Guide.
The "Input DAR" is the aspect ratio of the input video. In most circumstances, it should be automatically set for you. Anamorphic DVDs will be set to "ITU 16:9", for example.
Press the "Auto Crop" button to remove the black bars from the input video if it has any (most widescreen DVDs will).
Next,
check the "Suggested Resolution" checkbox and change the resolution to one that you require. For DVD conversion onto a single CD (700 MB) using H.264, you can get away with using the maximum resolution (720x***). If you have specific requirements, such as conversion to iPod/PSP compatible files, please make sure the resolution you select matches your playback device's capabilities.
Click on the "Filters" tab. For films on DVDs, you usually do not need to run a deinterlacing analysis. If the content you have is TV based, then you might need to
click on the "Analysis" button to see if the video requires de-interlacing.
Select "Source is Anime" if that's what you have.
Again, if you followed my advice for keeping the resolution for DVD sources, then you don't need either the resize of the noise filters. Otherwise, if you chose to reduce the resolution, then you can choose how the
resize will look like
("Bicubic (Neutral)" is recommended as a middle of the road choice). If the source has lots of noise, you can choose to enable the
noise filter and choose how much noise is present in your source. The other options can be left alone ("Colour Correction" is automatically checked for D2V input sources).
If your source is not DVD, then you can click on the "Edit" tab and edit the AviSynth script manually to enable audio (you don't need to do this with DVD sources if you have followed this guide, since we have already demuxed the audio using D2V Creator). Simply change the "audio=false" entry to "audio=true".
Make sure the
"On save close and load to be encoded" option and press the "Save" button to save the AviSynth script (by default, in the same directory as the D2V file, the filename is not important). Don't worry too much about the AviSynth Script Creator tool's preview window - it can be a little buggy where cropping and resizing and concerned. After saving, the AviSynth file should be
loaded automatically into MeGUI - MeGUI's preview window does work fine and please make sure the video looks alright, especially for DVD sources with cropping/resize.
Step 5a: Video Encoding Options MP4
We'll now set up the H.264 encoding options in the x264 encoder. This step has the most options to configure, and too many to cover in this guide alone. What I'll recommend is to use one of Sharktooth's profiles, and if you need further explanation of the options, refer to our
x264 Options Explained article.
In the MeGUI "Input" section, select "x264" as the "Codec" and "MP4" as the "Container".
For the "Video Profiles" option, select one of the x264 encoding profiles so we don't have to manually configure all the settings (unless you want to
, then click on the "Config" button to do so). A full explanation of what each profile is used for can be found on the
official forum thread for the profiles. For compatibility, I recommend using the CE profiles, particularly the "CE-QuickTime" profile (this will make the MP4 file playable in Apple QuickTime 7 or newer). The "CE-Baseline" profile is also fully QuickTime compatible, but uses less advanced features (and so will be faster during encoding at the expense of some quality).
Step 5b: Video Encoding Options XVID
After the AviSynth Script Creator window closes, it will be entered in the AviSynth Script box on the Input tab. Below that is the output file. Click the button to the right of it to change the location or name. Select the dropdown menu next to Codec and set it to XviD. File Format should be set to AVI, MKV, or RAWASP (MP4). To select a Video Profile, determine what percentage of original DVD's bitrate will be used for the XviD encode. If you're not sure, compare the combined size of the VOB files to the intended final size of the XviD. The profiles are named by what amount of compression they're designed for. For example, XviD '>90% comp. check' means it's for encodes that are 90% as big as the original or more. Find the largest percentage that's smaller than or equal to the amount of compression your encode will have. Each compression level will have a fast and HQ option. As the names suggest, one will give you faster encodes, and the other a little higher quality.
Step 6: Audio Encoding Options
Now it's time to set up the audio encoding options. If you've followed this guide for DVD conversion, then the demuxed audio track we selected in the D2V Creator should already be loaded in (if not, load in the .ac3 file that was created). If you are not converting from a DVD source, then you can either load in a separate audio file or if you edited the AviSynth script (set "audio=true"), then load in the AVS file into the "Audio Input" section (meaning both video and audio inputs are the same AVS file). Repeat if you want a second audio track by clicking on the "2" select option.
Now we select an audio codec to use. I prefer AAC audio, especially with H.264 as video - AAC is to MP3 what H.264 is to DivX/XviD, better compression + better quality. So which audio codec should you use? I prefer ND AAC (Nero Digital), so select it if you agree with me. We can now choose an audio profile from one of the "NDAAC" options. "NDAAC-HE-64Kbps" is the one I like, as it will give you roughly the same quality as a 128 Kbps MP3 file. You can select one of the "HEPS" (HEv2) profiles if you really want a small file size. The "LC" options offer better compatibility (eg. with iPod/iTunes), but at the cost of file size (still smaller than MP3s though).
Step 7: AutoEncode and starting the encoding
We're nearly finished. Press the "AutoEncode" button to launch the Automatic Encoder setup windows.
This is pretty straight forward - just specify the output size of your video file (and make sure the Container is set correctly, to "MP4" for the purpose of this guide). The output location can be changed as well - this file will be the final output file that you want, so make sure you remember where you put it and don't accidentally delete it when cleaning up (I like to put this file in a different folder to all the other files, just in case). Press the "Queue" button and all the necessary jobs will be added to the encoding queue.
Click on the "Queue" tab and all the jobs should be listed there. An explanation of the queued jobs shown in the screenshot below:
- job1: D2V Creation (already finished)
- job2-1: Encoding audio track 1
- job2-2: Encoding audio track 2
- job2-3: Encoding video, 1st pass
- job2-4: Encoding video, 2nd pass
- job2-5: Muxing audio and video to MP4
When you're ready to start, press the "Start" button to start the encoding and when it's all finished, your MP4 file should be ready. You can delete all the other files, unless you plan on making more encodings from them.
We're done
MeGUI Custom x264/AVC video profiles. (Updated: 2006-12-21)
Url to this pages:
http://nade.dk/web/nade/site.nsf/FramesetHP?readform&wmain=files/Megui