notes.md

• Perhaps remove the link_ from the erlang function names? Might be sort of redundant since it is alrady in package sp_link...?

• Useful links:

• https://github.com/Ableton/link/blob/master/include/ableton/Link.hpp
• http://ableton.github.io/link/

Session State is a class that contains:

The API is:

• enable

• is_enabled

• get_tempo

• set_tempo

• get_num_peers

• get_beat_at_time

• get_phase_at_time

• get_time_at_beat

• request_beat_at_time

• force_beat_at_time

• set_is_playing

• get_is_playing

• get_time_for_is_playing

• is_start_stop_sync_enabled

• start_stop_sync_enable

• request_beat_at_start_playing_time

• set_is_playing_and_request_beat_at_time

• get_current_time_microseconds : an aux function to get current time in microseconds. See clock() method in Link. See sp_get_current_time_microseconds

• set_callback_pid: a function to register a callback for the Link callbacks. See sp_set_callback_pid_nif

The callbacks send the following tuples to the callback pid:

• {link_num_peers, NumPeers}
• {link_tempo, Tempo}
• {link_stop}
• {link_start}

Need C99 compliant compiler, since I am using C bools, that should not be an issue in this day and age, but keep an eye

• When passing parameters from erlang, careful that integers are not converted to double automatically, so need to be explicit

• To be notified and be able to affect start / stop status you need to enable Start / Stop sync, by calling link_start_stop_sync_enable(true)