People with longer attention spans may want to reduce the framerate (3 per second is nice if you have lots of photos of the same scene, but a bit quick for single photos). In a terminal define output height and width variables (so, for photos from my phone):įfmpeg -framerate 3 -pattern_type glob -i '*.jpg' -vf "scale=iw*min($width/iw\,$height/ih):ih*min($width/iw\,$height/ih), pad=$width:$height:($width-iw*min($width/iw\,$height/ih))/2:($height-ih*min($width/iw\,$height/ih))/2" video.mp4Ĭlick here to get a breakdown of what this is doing via. The thing that makes this slightly more complex is that the photos are different sizes (some are portrait, some are landscape) and I want them to maintain their aspect ratio in the video, which means padding the portrait photos with some black space for the output. : Resizing videos with ffmpeg/avconv to fit into static sized player (comment) : How to transform all the images from the current directory to a video in FFmpeg? Here’s one way to grok what you’ve been taking pictures of: make a video which shows them at a rate of 3 per second. These photos sit in folders, mostly unlooked at. MP4, you would just do: ffmpeg -i infile.aiff outfile.I take lots of photos on my phone, a daily record of the mundane and notable. Of course, you can easily vary the above conversion. This may or may not be what you are after, but it will at least create a substantially smaller output file. Then FFmpeg will (by default) compress the audio using the mp3 algorithm. If you are okay with compressing the audio, you can instead run this command: ffmpeg -i infile.wav outfile.avi
The new black video file will have a copy of the original. The “-c copy” part of this command is to preserve the original audio content. To convert WAV to M4A with Audacity, the FFmpeg. AVI file), this is how I would do it: ffmpeg -i infile.wav -c copy outfile.avi It can only export to a few common audio formats, including MP3, WAV, FLAC, AIFF, OGG, MP2, but no M4A format. WAV format) to a blank video file (for example, a. Set Up The File Start by setting up your file. The script will be less than 20 lines of Bash. While that might sound like a lot, it really isn’t. When it comes to converting an audio file (say in. So, you can write a simple Bash script to loop through the contents of a specified directory and perform the conversion that you want on each file.
It requires “coding” in the terminal, but usually, it is only necessary to write a oneliner. When it comes to converting from one media format to another, I always turn to FFmpeg. Here is a quick recipe FFmpeg to the rescue This can be useful if you are on a system that does not have a dedicated audio player but a video player (yes, rare, but I work with odd technologies…).
Sometimes, there is a need to convert an audio file into a blank video file with an audio track.
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