Difference between revisions of "MeGUI"

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==Introduction==
 
==Introduction==
  
Those who use VirtualDub will have to get used to the fact that Megui does not accept simple avi input. [[Avisynth]] scripting is required before continuing with this guide.
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Those who use VirtualDub(Mod) will have to get used to the fact that MeGUI does not accept simple avi input. [[AviSynth]] scripting is required before continuing with this guide.
 
+
We will be using the H.264 video codec along with the AAC audio codec muxed inside an mp4 container. The video files must be Quicktime 7 compatible; please double-check your work before submitting to save yourself and SDA time and bandwidth.
+
  
 +
We will be using the H.264 video codec along with the AAC audio codec muxed inside an mp4 container.
  
 +
<br>
 
==Software and Installation==
 
==Software and Installation==
  
You may need to install the latest .NET Framework before installing Megui.
 
  
Download [[Media:MeGUI_0.2.3.2189.zip | MeGUI 0.2.3.2189]]. Install the program and run it. You should get a message saying there are updates available. Click OK and let the program download everything it needs. To access the autoupdate feature, you can also go to Tools -> Update.  
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<ol>
 +
<li>You may need to install [http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en Microsoft .NET framework 2.0] in order for MeGUI to run.
  
<font color="red">Later versions of MeGUI seem to be missing the MP4 muxer, and the adaptive muxer does not work. Do not download MeGUI from x264.nl.</font>
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<li>Download [http://www.x264.nl/ MeGUI]. Install the program and run it. You should get a message saying there are updates available. Click OK and let the program download everything it needs. You can also go to Options -> Update to access the autoupdate feature.
  
You will probably get an error saying that [http://www.nero.com/nerodigital/eng/Nero_Digital_Audio.html Nero Digital Audio] isn't available, so you'll have to download it separately. Download the zip file and extract the contents to "C:\Program Files\megui\tools\neroaacenc\". Make sure not to extract it to "...\neroaacenc\win32\". The win32 folder should not exist.
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<li>Close MeGUI.
  
 +
<li>Download [[Media:SDA_x264_profiles.zip‎|SDA x264 profiles for MeGUI]] and extract to "C:\Program Files\megui\allprofiles\x264\". These are compatible with QuickTime, Xbox 360, Playstation 3 and iPod.
  
==Importing the avisynth script==
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<li>Download [http://www.nero.com/eng/down-ndaudio.php Nero Digital Audio]. If the page is gone, download version 1.3.3.0 [[Media:NeroDigitalAudio.zip|here]]. Extract the contents of the zip file to "C:\Program Files\megui\tools\neroaacenc\". It will probably have a "win32" folder; if so, copy all the contents of the win32 folder and put them in "C:\Program Files\megui\tools\neroaacenc\". If the neroaacenc folder does not exist, create it yourself.
  
In the input tab, open the avisynth script in both video and audio boxes. You will notice that the output files have the same name... '''MAKE SURE THEY ARE DIFFERENT''' ...or you will probably end up losing your whole encode, and a whole lot of time.
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<li>In MeGUI, go to Options -> Settings -> Program Paths. Look for the entry with NeroAacEnc and click the browse icon to the right. Find neroaacenc.exe which should be in the "megui\tools\neroaacenc\" folder if you followed the instructions above.
 +
 
 +
<li>Verify that the paths for mp4box and x264 are also correct; don't worry about the rest. Save your settings.
 +
</ol>
 +
<br>
 +
 
 +
[[Image:meguipaths.png]]
 +
 
 +
<br>
 +
 
 +
==Importing the AviSynth script==
 +
 
 +
In the input tab, open the AviSynth script in both video and audio boxes. MeGUI exports your video and audio as separate files; you later combine them. You will notice that the video and audio output files have the same name... '''MAKE SURE THEY ARE DIFFERENT''' ...or you will probably end up losing your whole encode, and a whole lot of time.
  
 
Your input screen should look something like this:  
 
Your input screen should look something like this:  
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[[Image:Meguiinput.png]]
 
[[Image:Meguiinput.png]]
  
Don't worry about the profiles.
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<br>
 
+
  
 
==Setting the video compression==
 
==Setting the video compression==
 +
 +
Our goal is to make all of our videos compatible with QuickTime / Xbox 360 / PlayStation 3. Medium quality also features iPod compatibility. You won't have to play too much with the settings if you use the SDA profiles.
  
 
Bitrate list:
 
Bitrate list:
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* High quality - 2048 kbps
 
* High quality - 2048 kbps
 
* Insane quality - 5000 kbps
 
* Insane quality - 5000 kbps
 +
* X-TREME quality - 10000 kbps
  
  
While still at the input screen , press the Config button for x264. I will briefly explain the settings.
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All qualities will use the <font color=green>SDA_QT-Xbox360-PS3_LQHQIQXQ</font> profile, <u>except</u> for MQ which will use the <font color=green>SDA_iPod_MQ</font> profile.
 +
* At the input screen, click the dropdown menu for Encoder Settings and select the appropriate profile.
 +
* Click the config button
 +
* In the Main tab, set the bitrate according to which quality you're encoding.
 +
* Select the Advanced tab, set the minimum quantizer to 19 for videos with 640x480 or similar/higher resolution, and 17 for lower resolution.
 +
* Click OK and that's it!
  
===Main===
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Avoid changing any other settings, unless you know what you're doing, because you'll risk breaking compatibility.
 
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Mode - Automated 2-pass should be used. Look at the bitrate list above and choose the appropriate value for your encoding.
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<font color="green"><b>Tip:</b> If your game is not graphically complex, you can save some time by using Constant Quantizer mode and staying under the SDA bitrates. Starcraft, for example, is typically done with Constant Quantizer and bitrates usually do not go beyond 1300, well under the 2048 limit for HQ. 17 should be used for videos with 320x240 resolution, 19 for 640x480 or higher resolution. Notice that these values correspond to the minimum quantizer values below.</font>
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Deblocking - It is recommended to leave the settings to 0/0. Use lower settings if video is too blurry, but you will risk seeing more blocks.
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Number of threads - This depends on your computer. Leave it at 1 if your CPU is single-core, and 2 if it's dual-core.
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AVC profiles - Since we want to be sure that the video is Quicktime 7 compatible, you should select the main profile.
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===Zones===
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Zones are used to make specific parts of your video have higher or lower quality than the rest of the video. This is rarely used.
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===RC and ME (Rate Control and Motion Estimation)===
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Rate Control - I recommend leaving these settings alone, although VBV Maximum Bitrate can be useful. It ensures that encodes using variable bitrate won't go above the maximum specified bitrate.
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M.E. - These settings can make a large impact on the quality on your video, and it all depends on how much time you want to put into it. Chroma M.E. should be enabled. Range should be at least 8, I recommend 16. For the algorithm, go with either hexagon or multi hex. Do not use exhaustive, it takes way too long and has negligible results. Subpixel Refinement, go with at least #5.
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Misc - Leave these on default.
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===Advanced===
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Minimum Quantizer - 17 should be used for videos with 320x240 resolution, 19 for 640x480 or higher resolution.
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Trellis - Should be turned off when using Constant Quantizer mode. Otherwise it depends on you, though #2 is probably not worth the extra time.
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Number of reference frames - This is how far the encoder will check for similarities between frames. A value of 5 is recommended, use higher for more quality.
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Mixed - enabled.
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CABAC - Should definitely be turned on. It is one of the main reasons that H.264 is a superior codec.
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No Fast P-Skip - Helps to keep blocking low in scenes with gradients.
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Macroblock options - All should be turned on except Adaptive DCT and I8x8.
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Number of B-Frames - I recommend 3, since it is rare that you'll see more than that in a row.
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Adaptive B-Frames - Should be turned on to let the encoder decide how many B-Frames to use in a row.
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B-Pyramid - '''OFF'''. This will break Quicktime 7 compatibility if it is on.
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RDO, Weighted, Bidirectional - More "give me more quality at lower encoding speed" settings.
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B-Frame mode - Spatial tends to give better results than Temporal.
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 +
<br>
  
 
==Setting the audio compression==
 
==Setting the audio compression==
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* High quality - 128 kbps
 
* High quality - 128 kbps
 
* Insane quality - 320 kbps
 
* Insane quality - 320 kbps
 +
* X-TREME quality - 320 kbps
  
<font color="green"><b>Tip:</b> Use common sense when choosing the bitrate for the audio. If your dvd recorder uses 192 kbps AC3, then there's no need to go any higher, especially when considering that AAC is a newer, more advanced codec and can account for the lossy to lossy conversion.</font>
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<font color="green"><b>Tip:</b> Use some sense when choosing the bitrate for the audio. If your DVD recorder uses 192 kbps AC3, then there's no need to go any higher, especially when considering that AAC is a newer, more advanced codec and can account for the lossy to lossy conversion. To check the audio bitrate of your DVD recorder, look at the filename of the ac3 file DGIndex gave you.</font>
  
Go back to the input screen and look at the audio section. Choose ND AAC as the codec, choose MP4-AAC as the container, and then press the Config button. Use adaptive bitrate, and move the slider to select your bitrate. (Why they didn't just use an input box puzzles me.) For AAC Profile, use Low Complexity (AAC-LC).
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Go back to the input screen and look at the audio section. Choose AAC - Nero Digital as the codec, choose MP4-AAC as the extension, and then press the Config button. Use adaptive bitrate, and move the slider to select your bitrate. For AAC Profile, use Low Complexity (AAC-LC).
  
 
[[Image:NDAAC_HQ.png]]
 
[[Image:NDAAC_HQ.png]]
  
 +
<br>
 
==Encoding the video and audio==
 
==Encoding the video and audio==
  
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[[Image:Meguiqueue.png]]
 
[[Image:Meguiqueue.png]]
  
If it looks good, hit the start button.
+
If it looks good, hit the start button. In newer versions of MeGUI, you may get some notice about "workers." Just say yes and it'll work fine.
  
==Multiplexing the finished video and audio files==
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<br>
 +
 
 +
==Combining the finished video and audio files==
  
 
Simple enough, just go to Tools -> Muxer -> <b>MP4 Muxer</b> and add your video and audio files and set an output file name. Then press the queue button, go back to the queue tab and press start again.
 
Simple enough, just go to Tools -> Muxer -> <b>MP4 Muxer</b> and add your video and audio files and set an output file name. Then press the queue button, go back to the queue tab and press start again.
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And that's it! You should now have your final mp4 files ready for submission.
 
And that's it! You should now have your final mp4 files ready for submission.
  
 +
<font color=green><b>TIP:</b> If you want to queue everything right from the get-go, you can create text documents and rename them whatever you plan on naming your intermediate files (segment_1_video.mp4, segment_3_audio.mp4, etc.), tell MeGUI to mux those together, then delete them. This basically tricks MeGUI into thinking you have the files when you don't. You can also use [[Batch Encoding|batch encoding]].</font>
 +
 +
<br>
 +
==Clearing the queue==
 +
 +
Sometimes, when you select all the files in the queue and hit "Delete," you'll get a weird error message and you'll have to Ctrl+Alt+Del to get out of MeGUI. To avoid this, simply hit the "Clear" button.
 +
 +
<br>
 +
 +
==Checking your quality==
 +
 +
Before you encode your actual speed run, you should make sure you're doing everything right. If you encode your speed run incorrectly, it will be a waste of time for you and SDA. Read the [http://speeddemosarchive.com/forum/index.php/topic,8532.0.html "how to post a video quality test"] topic in the [http://speeddemosarchive.com/forum/index.php/board,5.0.html Tech Support forum] and follow the instructions.
 +
 +
<br>
 +
==Saving your settings==
 +
 +
You can save a lot of time by saving your settings for later. Go to the video configuration window and click "New," then type in a name corresponding to whatever quality you had your settings adjusted to. Do the same thing for audio and making videos in the future will be quick and painless. To load your settings, go to the main MeGUI screen and choose an option you created from one of the profile dropdowns.
  
 
Return to the [[Main Page|front page]].
 
Return to the [[Main Page|front page]].

Latest revision as of 10:35, 9 April 2012

Introduction

Those who use VirtualDub(Mod) will have to get used to the fact that MeGUI does not accept simple avi input. AviSynth scripting is required before continuing with this guide.

We will be using the H.264 video codec along with the AAC audio codec muxed inside an mp4 container.


Software and Installation

  1. You may need to install Microsoft .NET framework 2.0 in order for MeGUI to run.
  2. Download MeGUI. Install the program and run it. You should get a message saying there are updates available. Click OK and let the program download everything it needs. You can also go to Options -> Update to access the autoupdate feature.
  3. Close MeGUI.
  4. Download SDA x264 profiles for MeGUI and extract to "C:\Program Files\megui\allprofiles\x264\". These are compatible with QuickTime, Xbox 360, Playstation 3 and iPod.
  5. Download Nero Digital Audio. If the page is gone, download version 1.3.3.0 here. Extract the contents of the zip file to "C:\Program Files\megui\tools\neroaacenc\". It will probably have a "win32" folder; if so, copy all the contents of the win32 folder and put them in "C:\Program Files\megui\tools\neroaacenc\". If the neroaacenc folder does not exist, create it yourself.
  6. In MeGUI, go to Options -> Settings -> Program Paths. Look for the entry with NeroAacEnc and click the browse icon to the right. Find neroaacenc.exe which should be in the "megui\tools\neroaacenc\" folder if you followed the instructions above.
  7. Verify that the paths for mp4box and x264 are also correct; don't worry about the rest. Save your settings.


Meguipaths.png


Importing the AviSynth script

In the input tab, open the AviSynth script in both video and audio boxes. MeGUI exports your video and audio as separate files; you later combine them. You will notice that the video and audio output files have the same name... MAKE SURE THEY ARE DIFFERENT ...or you will probably end up losing your whole encode, and a whole lot of time.

Your input screen should look something like this:

Meguiinput.png


Setting the video compression

Our goal is to make all of our videos compatible with QuickTime / Xbox 360 / PlayStation 3. Medium quality also features iPod compatibility. You won't have to play too much with the settings if you use the SDA profiles.

Bitrate list:

  • Low quality - 128 kbps
  • Medium quality - 512 kbps
  • High quality - 2048 kbps
  • Insane quality - 5000 kbps
  • X-TREME quality - 10000 kbps


All qualities will use the SDA_QT-Xbox360-PS3_LQHQIQXQ profile, except for MQ which will use the SDA_iPod_MQ profile.

  • At the input screen, click the dropdown menu for Encoder Settings and select the appropriate profile.
  • Click the config button
  • In the Main tab, set the bitrate according to which quality you're encoding.
  • Select the Advanced tab, set the minimum quantizer to 19 for videos with 640x480 or similar/higher resolution, and 17 for lower resolution.
  • Click OK and that's it!

Avoid changing any other settings, unless you know what you're doing, because you'll risk breaking compatibility.


Setting the audio compression

Bitrate list:

  • Low quality - 64 kbps
  • Medium quality - 64 kbps
  • High quality - 128 kbps
  • Insane quality - 320 kbps
  • X-TREME quality - 320 kbps

Tip: Use some sense when choosing the bitrate for the audio. If your DVD recorder uses 192 kbps AC3, then there's no need to go any higher, especially when considering that AAC is a newer, more advanced codec and can account for the lossy to lossy conversion. To check the audio bitrate of your DVD recorder, look at the filename of the ac3 file DGIndex gave you.

Go back to the input screen and look at the audio section. Choose AAC - Nero Digital as the codec, choose MP4-AAC as the extension, and then press the Config button. Use adaptive bitrate, and move the slider to select your bitrate. For AAC Profile, use Low Complexity (AAC-LC).

NDAAC HQ.png


Encoding the video and audio

So you're back at the input screen, your configurations are all good to go. Now you just have to put those encoding jobs in the queue, so click the enqueue button for both video and audio and then click on the queue tab.

Meguiqueue.png

If it looks good, hit the start button. In newer versions of MeGUI, you may get some notice about "workers." Just say yes and it'll work fine.


Combining the finished video and audio files

Simple enough, just go to Tools -> Muxer -> MP4 Muxer and add your video and audio files and set an output file name. Then press the queue button, go back to the queue tab and press start again.

Meguimux.png


And that's it! You should now have your final mp4 files ready for submission.

TIP: If you want to queue everything right from the get-go, you can create text documents and rename them whatever you plan on naming your intermediate files (segment_1_video.mp4, segment_3_audio.mp4, etc.), tell MeGUI to mux those together, then delete them. This basically tricks MeGUI into thinking you have the files when you don't. You can also use batch encoding.


Clearing the queue

Sometimes, when you select all the files in the queue and hit "Delete," you'll get a weird error message and you'll have to Ctrl+Alt+Del to get out of MeGUI. To avoid this, simply hit the "Clear" button.


Checking your quality

Before you encode your actual speed run, you should make sure you're doing everything right. If you encode your speed run incorrectly, it will be a waste of time for you and SDA. Read the "how to post a video quality test" topic in the Tech Support forum and follow the instructions.


Saving your settings

You can save a lot of time by saving your settings for later. Go to the video configuration window and click "New," then type in a name corresponding to whatever quality you had your settings adjusted to. Do the same thing for audio and making videos in the future will be quick and painless. To load your settings, go to the main MeGUI screen and choose an option you created from one of the profile dropdowns.

Return to the front page.

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