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MP4/M4V to AVI: Convert Video from MP4/M4V(MPEG-4 Video) to AVI(Audio Video Interleaved) with River Past Video Cleaner, MP4/M4V2AVI converter, conversion


What is MP4/M4V?

A video compression standard planned for late 1998. MPEG-4 extends the earlier MPEG-1 and MPEG-2 algorithms with synthesis of speech and video, fractal compression, computer visualisation and artificial intelligence-based image processing techniques.

MPEG.ORG is an excellent source for additional information on MPEG format and usage.

There are several ways to decode MP4 video. Most of the time, having Apple QuickTime installed is sufficient. Occasionally, a file is not compatible with QuickTime. You will need to install CCCP when that happens.


What is AVI?

Defined by Microsoft, AVI stands for Audio Video Interleave. It is a special case of the RIFF (Resource Interchange File Format). AVI is the most common format for audio/video data on the PC.

AVI is Microsoft's response to Apple's QuickTime technology. Early AVI files were limited on choice of video and audio codecs, quality, and resolution. However, with the introduction of DirectShow, AVI became a very flexible and powerful architecture. Some newer codecs including DivX and XviD enable AVI files to have similar or even better quality than DVD.



Launch River Past Video Cleaner

Once River Past Video Cleaner is installed properly, launch Video Cleaner.



Add File

Click on the "Add File" button on the tool bar. The standard file open dialog appears. Select "MP4 - MPEG-4" in its "Files of type" combo box.


Select the file you want to convert and click "Open". The file will be added to the conversion file list.

Note: To convert from MP4 files, you must have Apple QuickTime installed.


River Past Video Cleaner


Select output format

Use the setting panel on the bottom of the window to control the output format. Click on the toggle to the left of the "Output Format" label to expand the panel. Select "AVI - Audio Video Interleave" as the "File Type".


Change Video Settings

Click on the toggle to the left of the "Video Settings" label to expand the panel.


Select "Specify" under "Size" and/or "Frame rate" to enter the video resolution and/or frame rate.


You can change the compressor, quality, size, and frame rate of the video.

The size of the AVI file depend a lot on the chosen video compressor. Microsoft ships some standard codecs with Windows, including MJPEG, Microsoft Video 1 and Cinepak. Those are old codecs and are not very efficient. It is not uncommon that your AVI files will be 10x to 50x bigger than your original files if you are converting from DIVX, MOV, MPEG, WMV or anything encoded with a MPEG based codec.

You can use additional codecs from Microsoft or third party codecs to reduce the file size. DivX and Xvid are two excellent third party codecs, which produces video with excellent quality with smaller file size. Both of them are based on MPEG-4, and both can be used with AVI file format.

However, if you use any non-standard codecs for the AVI file, please keep in mind that the viewer of the video must have the codecs installed on their PC too, and your file may not be compatible with all video editing software.

The file size also depend on the "Quality" setting. Move the slider to the left for smaller file size, at the expense of video quality.

Change Audio Settings

Click on the toggle to the left of the "Audio Settings" label to expand the panel.


Select the audio compressor for the conversion. Depending on the compressor, you may also change the sample rate, channel (stereo or mono), resolution, and bitrate.

Do not use "MPEG Layer-3" as the audio compressor. It does not work correctly in video files and often causes the conversion to abort in the middle. If you prefer to have MP3 audio in the AVI file, download lame_enc.dll instead.


Select output directory

Expand the "Output Directory" panel. Use the "Browse" button to select an output directory.



Convert

Click the "Convert" button on the tool bar.


River Past Video Cleaner


   MP4/M4V to 3G2
   MP4/M4V to 3GP
   MP4/M4V to AIF
   MP4/M4V to AVI
   MP4/M4V to DIVX
   MP4/M4V to DV
   MP4/M4V to GIF
   MP4/M4V to JPEG
   MP4/M4V to M4A
   MP4/M4V to MKV
   MP4/M4V to MOV
   MP4/M4V to MP3
   MP4/M4V to MP4/M4V
   MP4/M4V to MPA
   MP4/M4V to MPEG-1
   MP4/M4V to MPEG-2
   MP4/M4V to OGG
   MP4/M4V to OGM
   MP4/M4V to RA
   MP4/M4V to RM
   MP4/M4V to VOB
   MP4/M4V to WAV
   MP4/M4V to WMA
   MP4/M4V to WMV
   MP4/M4V to XVID
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