1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
| | #!/usr/bin/env ruby
# -*- encoding: binary -*-
# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net>
# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
#
# Note: no idea what I'm doing, especially w.r.t. curses
require 'dtas/unix_client'
require 'dtas/rg_state'
require 'curses'
require 'yaml'
w = DTAS::UNIXClient.new
w.req_ok('watch')
c = DTAS::UNIXClient.new
cur = YAML.load(c.req('current'))
readable = [ w, $stdin ]
# current rg mode
rg_mode = DTAS::RGState::RG_MODE.keys.unshift("off")
if (rg = cur["rg"]) && (rg = rg["mode"])
rg_mode_i = rg_mode.index(cur["rg"]["mode"])
else
rg_mode_i = 0
end
def update_tfmt(prec)
prec == 0 ? '%H:%M:%S' : "%H:%M:%S.%#{prec}N"
end
trap(:INT) { exit(0) }
trap(:TERM) { exit(0) }
# time precision
prec_nr = 1
prec_step = (0..9).to_a
prec_max = prec_step.size - 1
tfmt = update_tfmt(prec_step[prec_nr])
events = []
interval = 1.0 / 10 ** prec_nr
def show_events(lineno, screen, events)
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
Curses.addstr('Events:')
maxy = screen.maxy - 1
maxx = screen.maxx
events.reverse_each do |e|
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
extra = e.size/maxx
break if (lineno + extra) >= maxy
# deal with long lines
if extra
rewind = lineno
extra.times do
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
end
Curses.setpos(rewind, 0)
Curses.addstr(e)
Curses.setpos(lineno, 0)
else
Curses.addstr(e)
end
end
# discard events we can't show
nr_events = events.size
if nr_events > maxy
events = events[(nr_events - maxy)..-1]
until lineno >= screen.maxy
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
end
else
Curses.setpos(maxy + 1, 0)
Curses.clrtoeol
end
end
def fmt_to_s(f)
r = [ f['rate'], f['channels'], f['type'], f['bits'] ]
r.compact!
r.join(',')
end
def rg_string(rg, current)
rv = "rg mode=#{rg['mode']||'off'}"
defaults = DTAS::RGState::RG_DEFAULT
# don't show things that are too rare
%w(preamp fallback_gain).each do |param|
val = rg[param] || defaults[param]
rv << " #{param}=#{val}"
end
env = current && current["env"] and rv << " / RGFX='#{env['RGFX']}'"
rv
end
begin
Curses.init_screen
Curses.nonl
Curses.cbreak
Curses.noecho
screen = Curses.stdscr
screen.scrollok(true)
screen.keypad(true)
loop do
lineno = -1
pfmt = cur['format']
if current = cur['current']
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
Curses.addstr(current['infile'] || current['command'])
elapsed = Time.now.to_f - current['spawn_at']
if (nr = cur['current_initial']) && (current_format = current['format'])
rate = current_format['rate'].to_f
elapsed += nr / rate
total = " [#{Time.at(current['samples'] / rate).strftime(tfmt)}]"
fmt = "(#{fmt_to_s(current_format)} > #{fmt_to_s(pfmt)})"
else
total = ""
fmt = fmt_to_s(pfmt)
fmt = "(#{fmt} > #{fmt})"
end
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
Curses.addstr("#{Time.at(elapsed).strftime(tfmt)}#{total} #{fmt}")
else
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
Curses.addstr(cur['paused'] ? 'paused' : 'idle')
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
end
rgs = rg_string(cur["rg"] || {}, current)
Curses.setpos(lineno += 1, 0)
Curses.clrtoeol
Curses.addstr(rgs)
show_events(lineno, screen, events)
Curses.refresh # draw and wait
r = IO.select(readable, nil, nil, current ? interval : nil) or next
r[0].each do |io|
case io
when w
event = w.res_wait
events << "#{Time.now.strftime(tfmt)} #{event}"
# something happened, refresh current
# we could be more intelligent here, maybe, but too much work.
cur = YAML.load(c.req('current'))
when $stdin
# keybindings taken from mplayer / vi
case key = Curses.getch
when "j" then c.req_ok("seek -5")
when "k" then c.req_ok("seek +5")
when Curses::KEY_DOWN then c.req_ok("seek -60")
when Curses::KEY_UP then c.req_ok("seek +60")
when Curses::KEY_LEFT then c.req_ok("seek -10")
when Curses::KEY_RIGHT then c.req_ok("seek +10")
when Curses::KEY_BACKSPACE then c.req_ok("seek 0")
# yes, some of us have long audio files
when Curses::KEY_PPAGE then c.req_ok("seek +600")
when Curses::KEY_NPAGE then c.req_ok("seek -600")
when "9" then c.req_ok("rg preamp-=1")
when "0" then c.req_ok("rg preamp+=1")
when "F" then c.req_ok("rg fallback_gain+=1")
when "f" then c.req_ok("rg fallback_gain-=1")
when " "
c.req("play_pause")
when "r" # cycle through replaygain modes
rg_mode_i >= 1 and c.req_ok("rg mode=#{rg_mode[rg_mode_i -= 1]}")
when "R"
rg_mode_i < (rg_mode.size - 1) and
c.req_ok("rg mode=#{rg_mode[rg_mode_i += 1]}")
when "p" # lower precision of time display
if prec_nr >= 1
prec_nr -= 1
tfmt = update_tfmt(prec_step[prec_nr])
interval = 1.0 / 10 ** prec_nr
end
when "P" # increase precision of time display
if prec_nr < prec_max
prec_nr += 1
tfmt = update_tfmt(prec_step[prec_nr])
interval = 1.0 / 10 ** prec_nr
end
when 27 # TODO readline/edit mode?
else
Curses.setpos(screen.maxy - 1, 0)
Curses.clrtoeol
Curses.addstr("unknown key=#{key.inspect}")
end
end
end
end
rescue EOFError
Curses.close_screen
abort "dtas-player exited"
ensure
Curses.close_screen
end
|