+Video

Players and Transcoders

VLC

Ctrl P for preferences.

Video Lags

Sometimes the video lags.

  • VLC can do video decoding in the GPU - but data transfer slows down. Disable hardware decoding.
  • Increase file caching to 8000ms

Audio lag

  • Keys K and J to adjust sync.

ffmpeg

  • For a 97 min film (7GB flv)
    • 600MB, a bit blurry with -crf 35.0 -vcodec libx264 -acodec aac -b:a 128k -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -strict -2
    • 2GB with -crf 25.0 -vcodec libx264 -acodec aac -b:a 160k -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -strict -2

Recorders

OBS Studio

  • Set up video capture devices (camera 1, camera 2, screen capture, window capture …)
  • Set up audio capture devices (output, input). Best input device - webcam stereo. Not very good, but ok - doc camera mono audio.

Editors

Kdenlive

  • Shift R for cutting

ffmpeg

Rotating video 90deg : ``

Publishing

YouTube