I have two mp4 videos both at 480p resolution, which I want to concat. They are together about 80 minutes long.
When I do this using the common way with this command: ffmpeg -f concat -safe 0 -i join.txt -c copy joinedfile.mp4 using a file specifying the video sections to concatenate the result plays very poorly and has many artifacts. And at the border between the two videos the output video becomes unplayable. So I tried to re-encode using this command instead: ffmpeg -hide_banner -i video.1.mp4 -i video.2.mp4 \ -filter_complex "[0:v] [0:a] [1:v] [1:a] concat=n=2:v=1:a=1 [v] [a]" \ -map "[v]" -map "[a]" video.mp4 This command was started before bedtime yesterday and had not finished this morning 8 hours later... The video output file size was about 1.5 GB when I interrupted the process. The two videos are 101 and 238 MB in size respectively. They are downloaded videos from the Internet. What ffmpeg command can I use to concatenate these two files in a safe way? -- Bo Berglund Developer in Sweden _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
