Media
Image & Audio
Section titled “Image & Audio”Accepted image formats: .png, .jpg, .jpeg, .webp
Accepted audio formats: .mp3, .wav, .ogg
At this time, the only accepted video format is .ogv
As this is not a common file type, you may need to convert your video to it. There are online tools that may let you do this for free, with restrictions such as file size limits, etc.
An example of such a tool: https://www.freeconvert.com/mp4-to-ogv
However, an option that is completely free and gives full control over the process is FFmpeg.
FFmpeg
Section titled “FFmpeg”After installing FFmpeg, you can run commands such as this via your command line:
ffmpeg -i input_video.mp4 -c:v libtheora -q:v 7 -c:a libvorbis -q:a 5 output.ogvinput_video.mp4 should be changed to the name of your video file.
output.ogv will be the name of the converted video file.
-q:v 7 sets the video quality of the converted video on a scale from 0 to 10.
-q:a 5 sets the audio quality of the converted video on a scale from 0 to 10.
Additional settings that may be helpful are frame rate and video dimensions. An example command with these settings added:
ffmpeg -i input_video.mp4 -c:v libtheora -q:v 7 -c:a libvorbis -q:a 5 -r 30 -vf "scale=1024:576" output.ogv-r 30 sets the frame rate.
-vf "scale=1024:576" sets the video dimensions.