Flayr line-up pack
==================

From flayrfx.com/video-tools/broadcast-clocks

tones/   48 kHz, 24-bit stereo WAV, 60 seconds each. 1 kHz sine; the stated level is the sine's peak in dBFS.
  tone-glits-60s.wav    GLITS (UK): -18 dBFS; left cut for 250 ms every 4 s, right cut twice for 250 ms.
  tone-ebu-60s.wav      EBU stereo line-up (Tech 3304): -18 dBFS; left cut for 250 ms every 3 s.
  tone-18dbfs-60s.wav   Continuous 1 kHz at -18 dBFS (EBU R68 alignment level).
  tone-20dbfs-60s.wav   Continuous 1 kHz at -20 dBFS (SMPTE RP 155, US).
  sync-plop-1khz-1frame-25fps.wav   One frame (40 ms) of 1 kHz at -18 dBFS for the DPP sync plop.

stills/  EBU colour bars as 8-bit RGB PNG at UHD, HD and 720p.
  bars-ebu-100-*.png    100/0/100/0: the UK DPP line-up.
  bars-ebu-75-*.png     100/0/75/0.
  Bring them in as Rec.709 (full-range RGB maps to legal 64-940 in 10-bit video).

UK DPP layout at 25 fps: bars and tone 09:59:30:00 (20 s), clock 09:59:50:00, black and silence 09:59:57:00,
optional sync plop 09:59:57:06, programme 10:00:00:00.
