But keep in mind that to join video files, the size and formats of the different sections need to be the same. It also has the ability to join videos, which is convenient when there are several different sections of one large file that one needs to cut out and then put back together. What Avidemux gets right is that it successfully cuts mp4 and mkv files, which is hard to find. This is a little inconvenient, because you do not always want to have to choose separate formats for both video and audio. This isn’t always possible, and even when one does begin on a I-frame, it may not be the frame the program requires and hence, the video will not be saved. But this warning is only to do with the playback within the program – it does not affect the video output.Īnother problem is that in copy mode, the program requires the edited video to begin on a I-frame (or keyframe). One, most video formats loaded on the program open with an error message such as ‘H.264 detected’ and the like. However, despite all its merits, Avidemux does have its fair share of drawbacks that should be kept in mind. But be wary, the program does have a habit of crashing, so always remember to save your project before you save the video.Īside from these preset formats, one can also choose the video and audio format for the video from the dropdown menus on the left-hand side. There are preset output formats under the ‘Auto’ tab – these include 720p, PlayStation Portable, DVD, etc. Here again, Avidemux has several tools to benefit its users. Then, just click Save Project As before you Save Video. And best yet, one can cut to the last second before the desired section, thereby ensuring none of your precious moments are lost. The best way to do this is to locate the beginning of the section you wish to keep and click the ‘B’ marker – the previous portion is then marked with blue, allowing you to delete it. After a file has been opened, choose markers ‘A’ and ‘B’ to select portions of the video you wish to delete (deletion is done using the ‘Del’ key, which is very convenient). The program has a clear toolbar on top with all necessary buttons. Installing the software is very straight forward, so there should be no issues with that. It is relatively simple to use as well, making it the best when splitting files in mp4 format. It supports formats such as mp4, mpg, avi, ogm, mkv, flv. Inability to save video in copy mode.Īvidemux is a free video cutting and joining software. Video and audio playback is poor when editing. $ ffmpeg -f concat -safe 0 -i list.txt -c copy merged.mp4įor more information on the ffmpeg approach, this Stack Overflow question has some good information (as does ffmpeg man page, of course).Splitter and Joiner for mp4, mkv, avi. To start a 'project', drag and drop the first file you want to join from windows explorer to avidemux window, than continue to drag and drop following the numeration of the GoPro files. While not directly an answer to your question, I would personally use ffmpeg and its concat demuxer for this as it is more powerful (e.g. I'm using lasted AVIDEMUX (2.6.911 version) for join the GoPro videos. See the rest of the avidemux man page for more information. Set output format (AVI|OGM|ES|PS|AVI_DUAL|AVI_UNP|.), often named as container format Set audio codec (MP2/MP3/AC3/NONE (WAV PCM)/TWOLAME/COPY) Set video codec (Divx/Xvid/FFmpeg4/VCD/SVCD/DVD/XVCD/XSVCD/COPY) This works for me: avidemux3_cli -load file1.mp4 -append file2.mp4 -append file3.mp4 -video-codec copy -audio-codec copy -output-format mp4 -save merged.mp4
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