FFmpeg video compression – decrease size, maintain quality

To decrease video upload time, re-encode videos with FFmpeg, trying lower quality settings until no longer acceptable. Here a 20 GB file was compressed to 500 MB with minimal loss of quality. To give the best information possible to FFmpeg, first export from your video rendering software at high quality. I use Sony Vegas 13 and suspect the large improvement of compression is because FFmpeg has continued to develop while Sony Vegas 13 is a couple years old.

FFmpeg page: FFmpeg homepage
FFmpeg h.264 page: FFmpeg h.264 homepage
Coding session video (CRF=28): Coding session video

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