$ 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). 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. 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) Avidemux currently supports FLV1 only.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 Many formats, including Vorbis, FLAC, MP3, PCM and AACįLV1, VP6 or MPEG-4 AVC.

Theora, MPEG-4 ASP, MPEG-4 AVC, almost anything MPEG-1 Layers I, II, III (MP3), MPEG-2/4 AAC, AC-3, DTS, FLAC, Vorbis, PCM Many formats, inlcuding MPEG-1, MPEG-2, MPEG-4 ASP and MPEG-4 AVC Step 3: Before continuing, under the ‘ Video Output ‘ and ‘ Audio Output ‘ options, make sure it says ‘Copy’. Step 2: Now open ‘Avidemux’ program and load the ‘troublesome’ multimedia file into it. MPEG-1 Layers I, II, III (MP3), MPEG-2/4 AAC First of all, go to this page, download the package and install it (it has pre-built packages for Windows, Mac OS X and GNU/Linux). Ttxt, VobSubs in userdata atom (started by Nero)

Only in userdata atom (started by Nero Digital) MPEG-1 Layers I, II, III (mp3), AC-3, LPCM, DTS, AAC MPEG-4 ASP and MPEG-4 AVC are supported, but currently Avidemux does not create such files! MPEG-1 Layers I, II, III (mp3), AC-3, LPCM, DTS MPEG-1 and MPEG-2 in AVI are highly problematic! MPEG-4 AVC is supported, but not recommended. Many formats, including MPEG-4 ASP, DV, M-JPEG, HuffYUV and FFV1.

Avidemux mp4 output