And visually align the waveforms from the audio recording and the video. Then I drop the video in Reaper and cut it as regular audio file. I record the audio in Reaper and the video on an oldish iPhone. From the file explorer, select the respective media files and click Open to upload them to the User. One of the options is to tab Import menu located on the primary interface and choose Import Media Files. How do I trim and time-align video without a video editor? I use my music editing software Reaper (unlimitted trial, $60 otherwise). Filmora Video Editor provides two options to import video files from your computer. But it works! Side note: video editing with Reaper
I'm no ffmpeg expert so I cannot afford the luxury of even pretending to begin to explain this syntax. filter_complex "hstack=inputs=3 hstack=inputs=3 vstack=inputs=2" \ The other is to use hstack and vstack: ffmpeg -i 1.m4v -i 2.m4v -i 3.m4v -i 4.m4v -i 5.m4v -i 6.m4v \ ffmpeg -ss 240 -i src.mp4 -t 280 -c copy dst.mp4. Example: From the start of the 240sec time of the src.mp4, cut out the interval of 280sec and save it under the name dst.mp4. filter_complex "xstack=inputs=6:layout=0_0|0_h0|w0_0|w0_h0|w0+w3_0|w0+w3_h0" \ Crop a video of a specified time from a specified location with ffmpeg. One is using xstack filter ffmpeg -i 1.m4v -i 2.m4v -i 3.m4v -i 4.m4v -i 5.m4v -i 6.m4v \ Turns out there's more than one way to skin that particular cat. In fact at some point I thought things will require iMovie and went to install it. I was hoping I can use ffmpeg, because the thought of using a proper video editing software gives me the chills. If you don’t mention copy, re-encoding is the norm.I wanted to create a video that is a 3x2 grid of 6 other videos. If you want to cut specifically at a non-keyframe and have it play at the desired point on a player that doesn’t support edit lists, or if you want to make sure the cut section isn’t in the output file (for example, if it includes sensitive information), you can do so by re-encoding so that a keyframe is present at the desired start time. Some players can disregard the edit list and play the entire file from beginning to end, regardless of the edit list. If this does not work for you, it is you are likely using an older version of FFmpeg or that your player does not support edit lists. If you’re using the latest version of FFmpeg from git master, it’ll use an edit list when you run it with the command you give. In other words, if the closest keyframe before 3s is at 0s, the video will be copied starting at 0s, and FFmpeg will use an edit list to tell the player to begin playing 3 seconds in. Using an edit list, it is possible to cut at a non-keyframe with the mp4 container without re-encoding. Non-keyframes need all of the data beginning with the previous keyframe because they encode variations from other frames. You probably don’t have a keyframe at the specified second mark if you can’t cut a video at a particular moment. The installation process might be different on Mac or Linux, but video cropping is the same. In GNU/Linux tagged cut / ffmpeg / time by Tux
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