I will assume that you already have a video file which you want to turn encode. There is help elsewhere on these applications. If you want to create a QT compatible file you'll have to use the softwares known as SUPER (Windows only), or FFMPEGX (MacOSX) and FFmpeg in Linux. There are numerous posts on the Avidemux forum about this issue and hopefully a future version will solve this problem.

There are many reasons why you may need to create a MPEG4 file from an existing video file - to make a downloadable preview file for a longer movie that can be viewed in VLC player, for example.īefore we start however it is useful to note that MPEG4 files created by Avidemux won't play in a Quicktime ('QT') player (which makes them unsuitable for wide distribution as podcasts). This chapter will show you how to create an MPEG-4 file from an existing video file. the bitrate is, again, NOT the same! HOW?! (.mkv went through Avidemux. the video is being saved immediately (so I figure no reencoding, resampling etc is being done). then I save the video without making ANY changes. Too bad that filters are then unavailable. What surprises me even more: If, instead of a codec, I choose 'copy', both in Video output and Audio output. found out that data rate, bitrate, frame rate etc were NOT the same. then after a few minutes I right-clicked both the original and edited video. The Video Output menu shows a lot of options (like: (FF)HuffYUV, DV (ffmpeg), etc) not sure which one to choose? Since the original video is. How do I save the modified video clip without tampering with the video's quality settings? After a little Googling I installed Avidemux and its Crop filter works great, BUT.

Avidemux save as mp4