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DVD to DivX format for 4:3 movies |
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The DivX4 provides great video quality but take note that DivX movies won’t work with stand-alone DVD players.
Before we get started, take a look at your DVD movie to make sure that its aspect ratio coincides with the ratio this guide has been prepared for—4:3.
Requirements:
It is recommended that a fast PC is used to encode DivXs because the process may otherwise take a hefty amount of time. Also, you will need an ample amount of free HDD space (around 7-10 gigabytes). And of course you must have a DVD-ROM drive.
The following are the tools you can download that will be of use:
· DVD2AVI
· VFAPI Reader Codec
· DV-Tool
· DivX 5 Codec
· VirtualDub
· LAME ACM Codec
DVD ripping software may also come in handy.
Process
Our goal here is to make a DivX backup of a DVD movie with the mentioned ratio utilizing DivX4’s 2-pass technique along with LAME’s MP3 algorithms for encoding. We also want to make sure that the movie data will fit on 2 normal 74 minute CDs. Others may want the video to fit on a single CD but because we want to make sure that quality isn’t compromised we’ll use 2.
DVD2AVI
For converting VOB files to AVI files we may use a tool known as DVD2AVI. But we will be utilizing this tool as a frameserver for VirtualDub. Because we want to make DivX videos that will be able to play on most PCs we’ll downmix the audio (44.1kHz). This will help make sure that the soundard won’t struggle with it.
First, open DVD2AVI and select the option Open from its File menu. From here find the directory where the ripped VOB files are located. Once you’ve done this select the initial one. After you’ve clicked OK the first frame of the movie should be in the main window.
Press F5 and a preview of the movie should begin. After a couple seconds, a statistics box should pop up near the main window and info should follow. Once you’ve seen text in the boxes that appear, click Esc to stop the preview. Note the following: Video type (PAL or NTSC), Frame type (progressive, interlaced, etc), Aspect ratio (16:9 or 4:3) and Frame rate (29.97fps for NTSC, 25fps for PAL and 24fps for NTSCFilm).
Audio settings of DVD2AVI
Proceed to the Audio menu and select Track number. You may look at the VOB files using your software DVD player and from the language selection list, select the correct audio track. The English audio track is usually Track#1.
In the Audio menu, proceed to select 48 -> 44.1 and select High or UltraHigh. Afterwards, proceed to the Dolby Digital menu and select Decode and Dolby Surround Downmix.
Save
Select Save project from the File menu and choose a destination which has atleast 1.5GB of free HDD space. Expect that creating and decoding a .d2v project file will consume an hour using P3/800.
VFAPIConvert
VirtualDub is not able to open VFAPI supported files on its own so this will require the use of VFAPIConvert in order to convert DVD2AVI project file into a pseudo-AVI.
Next simply open VFAPIConvert and click Add job, followed by selecting the .d2v file. After you’ve selected both Video output boxes, click OK and Convert. A pseudo-AVI file will be generated.
DV-Tool
In order to find the best possible video bitrate we will be utilizing DV-Tool (a bitrate calculator). You want to change the entry in the storage media box to 1200 MB. Following this change the audio to 160Kb MP3 and put the movie’s entire length in minutes in the length box. Make sure that you take note of the optimal bitrate which is found in green font in its box.
VirtualDub
In order to process and encode the video into DivX4 we will make use of a free video editing tool known as VirtualDub. Begin by choosing Open video file.. from the File menu and select the pseudo-AVI made with VFAPIConvert. Take note that if it doesn’t open at this point, the VFAPI Reader Codec wasn’t installed right.
From the Audio menu, select WAV Audio and load the WAV file which DVD2AVI made when you saved the project. Then select Full processing mode from Audio menu and select Compression.
Now select MPEG-3 from the Compression menu. If there’s not only one entry in the codec list named MPEG-3 click on the first. If (Lame) appears after their specifications, then you’ve got the right codec. Select 160Kbit/sec, 44.1KHz, stereo – which is great for movies and click OK.
Video Settings
Proceed to the Video menu and select Full processing mode. Then select Compression where you will be able to view all your encoding-capable video codecs. Select DivX Codec 4.XX (the highest version number). Now click Configure.
First pass settings
Here is where changes to the video encoding algorithms may be made. Enter the precise value from DV-Tool into the bitrate or Output video bitstream. Make sure that the Maximum key frame interval is at about 200-400. Deinterlace should NOT be selected. Also make sure that the Max CPU usage selection is unchecked. Default postprocessing level slider should not be touched as well. Select 2-pass, first pass from Variable bitrate mode. Choose Slowest for Performance/quality. Follow by clicking OK to get back to the codec screen and click OK once more to get to VirtualDub.
IVTC (Inverse Telecine) for NTSC format
In order to convert the video to the framerate of 23.976 so as to steer clear of audio synch issues that may come up with NTSC formatted material, IVTC may be used. Select Frame rate from the Video menu, while leaving the Frame rate conversion as No change. Select Reconstruct from fields – adaptive in IVTC selection and click OK.
Video cropping
Select Filters from the Video menu. Click Add and select Null transform filter from the list shown followed by clicking OK. Now click Cropping in the filter window. Take care of the black lines in the video by utilizing the four adjusters. After the adjustments, click OK.
Save
Select Save AVI from the File menu. Select your destination directory, followed by typing in the filename. Make sure you select the Add operation to job list and also defer processing.
Second pass encoding
Select Compression from the Video menu. Next select DivX4 codec and click Configure. Select 2-pass, second pass from Variable bitrate mode while letting the other settings be. Click OK to get back to the codec list and click OK again to get back to VirtualDub. In the File menu select Save AVI once more. Select a directory followed by typing in the filename. Make a different filename than the first pass phase. Make sure you select the Add operation to job list and also defer processing. Click Save.
Now select Job control from the File menu and once you’ve laid eyes on your two AVI processes, click Start.
File Splitting
Finally, so that you can fit the AVI into 2 CDs you may split it through VirtualDub.
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