switch from libmad to libmpg123 libmpg123 is more "loud" than libmad, at least for the mp3s that I have around. Is also newer and maintained. I've heard is also faster, but amused is so simple that it doesn't make any difference.

change the log debug string for player_setup now it includes all the params, not only the rate

fix player wrt unknown files

stray newline

always call playlist_dropcurrent after main_play_song failures otherwise we keep garbage in the playing queue.

unify IMSG_ERR and IMSG_EOF handling IMSG_ERR needs a playlist_dropcurrent(), but otherwise is just the same as IMSG_EOF: the current song ended and we need to move forward. To unify, set current_song to NULL in playlist_dropcurrent, which make sense since right after it we're not playing anything.

move to the previous song in playlist_dropcurrent() this avoids the player skipping two songs on failure.

remove siginfo handling was useful for debugging but now ther's the `status' command for it.

use the Ux macro for "UNIX"

flush stdout after each monitor event otherwise the output may get buffered by a pipe and it's not pretty.

add the `monitor' command

add a monitor functionality this pings all the "interesting" events to clients that issued a IMSG_CTL_MONITOR, except to the one that generated such event.

mp3: don't scale back to 16bps libmad gives us sample at 32bps, but we scaled back to 16 because minimad.c does so. However, the scale producedure from minimad.c kinds of corrupts some audio files, they don't play well. We can leave the problem to sndio which solves it better than us.

allow changing sample bit size

sync file list