[FFmpeg-user] How to concat two videos with same size but different source?
nomiya at galaxy.dti.ne.jp
Sun Oct 9 00:35:36 EEST 2022
Hello & Good Morning,
In the Message;
Subject : Re: [FFmpeg-user] How to concat two videos with same size but different source?
Message-ID : <sab3khhtl7902jlbnqasprcreuakq2m1po at 4ax.com>
Date & Time: Sat, 08 Oct 2022 19:30:03 +0200
[BB] == Bo Berglund <bo.berglund at gmail.com> has written:
BB> On Sat, 08 Oct 2022 21:30:04 +0900, Masaru Nomiya <nomiya at galaxy.dti.ne.jp>
MN> > $ ffmpeg -f concat -i mylist.txt -c copy output.mp4
BB> This is what I said I did (see above), the only difference is that I used the
BB> -safe 0
BB> too. This comes from looking up commands on the web, what does it do?
-safe 0 is required to allow relative paths to be specified for files
BB> ffmpeg -hide_banner -f concat -i join.txt output.mp4
BB> This did not work at all. The first video part plays ok in the output but at the
BB> switchover point to the second part the video playback stalls the image but
BB> continues the audio behind the still of the last image of the first video.
BB> What is the difference between the above approach and this:
BB> ffmpeg -hide_banner -f concat -i video1.mp4 -i video2.mp4 output.mp4
BB> And how can I get both videos (which play OK separately) concatenated properly?
Please show the results of;
1. $ file video1.mp4
2. $ file video2.mp4
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