trim a file
ffmpeg -i 2016-10-31-VIDEO-00000282.mp4 -vcodec copy -acodec copy -ss 00:01:19 -t 00:00:45 DeMusicaLigera.mp4
Add a logo overlay
ffmpeg -i DeMusicaLigera.mp4 -i rumberologo.png -filter_complex "[0:v][1:v]overlay=10:10:enable=between(t\,0\,15)” -codec:a copy DeMusicaLigera-96.3000.mp4