Re: [ANNOUNCE] ly2video 0.3.0

[David Kastrup]

Adam Spiers <address@hidden> writes:

>     + a new default scrolling mode where the notation stay still
>       and the cursor line scrolls from left to right

You jump the notation leftwards.  You should rather _pull_ it left.
Start with a pixel per frame, increase the speed by 1 pixel/frame/frame
until you are half through, then decrease by 1 pixel/frame/frame.  If
this is not fast enough to keep the cursor on-screen, start earlier
and/or faster.  Ok, the metrics are certainly debatable: you probably
want everything over in 0.5 seconds or less, and want to have this in
two phases (possibly more): acceleration and deceleration.

But a mere discontinuous jump is confusing since it can happen when
blinking.  A more continuous movement should usually also be friendly to
the video codec and rate.

-- 
David Kastrup