Caveats
Converting MP4 Videos to MXF
With videos recorded at 1920x1080 HD.
From my MacBook, transcode with DaVinci:
- MXF OP-Atom
- XDCAM MPEG2
Converting MP4 Videos to DNxHD
ffmpeg -i input.mp4 -c:v dnxhd -vf fps=60/1,format=yuv422p -b:v 75M output.mov
Converting to webM
ffmpeg -i Teraflop\ Example\ Cube.mp4 -c:v libvpx -crf 10 -b:v 1M -c:a libvorbis Teraflop\ Example\ Cube-magic.webm
Extract a Poster Image
Frame 34:
ffmpeg -i <input> -vf "select=eq(n\,34)" -vframes 1 out.png