mirrors/pulseaudio
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git synced 2025-10-29 05:40:23 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

tests: show dB in volume-ui.py

Browse source
This commit is contained in:
Lennart Poettering 2009-05-22 01:31:26 +02:00
parent 000bdb8d25
commit ce3fbb5268
1 changed files with 26 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

29
src/tests/volume-ui.py
View file

@ -111,6 +111,10 @@ class CVolume(Structure):
_set_fade.restype = c_void_p
_set_fade.argtypes = [c_void_p, c_void_p, c_float]
_to_dB = libpulse.pa_sw_volume_to_dB
_to_dB.restype = c_double
_to_dB.argytpes = [c_uint32]
def snprint(this):
s = create_string_buffer(320)
r = this._snprint(s, len(s), byref(this))
@ -138,6 +142,12 @@ class CVolume(Structure):
def set_fade(this, cm, f):
return this._set_fade(byref(this), byref(cm), f)
def to_dB(this, channel = None):
if channel is None:
return this._to_dB(this.max())
return this._to_dB(this.values[channel])
cm = ChannelMap()
if len(sys.argv) > 1:
@ -149,7 +159,7 @@ v = CVolume()
v.channels = cm.channels
for i in range(cm.channels):
v.values[i] = 65536/2
v.values[i] = 65536
title = cm.to_pretty_name()
if title is None:
@ -163,6 +173,7 @@ vbox = gtk.VBox(spacing=6)
channel_labels = {}
channel_scales = {}
channel_dB_labels = {}
def update_volume(update_channels = True, update_fade = True, update_balance = True, update_scale = True):
if update_channels:
@ -178,6 +189,11 @@ def update_volume(update_channels = True, update_fade = True, update_balance = T
if update_fade:
fade_scale.set_value(v.get_fade(cm))
for i in range(cm.channels):
channel_dB_labels[i].set_label("%0.2f dB" % v.to_dB(i))
value_dB_label.set_label("%0.2f dB" % v.to_dB())
def fade_value_changed(fs):
v.set_fade(cm, fade_scale.get_value())
update_volume(update_fade = False)
@ -200,19 +216,26 @@ for i in range(cm.channels):
vbox.pack_start(channel_labels[i], expand=False, fill=True)
channel_scales[i] = gtk.HScale()
channel_scales[i].set_range(0, 65536)
channel_scales[i].set_range(0, 65536*3/2)
channel_scales[i].set_digits(0)
channel_scales[i].set_value_pos(gtk.POS_RIGHT)
vbox.pack_start(channel_scales[i], expand=False, fill=True)
channel_dB_labels[i] = gtk.Label("-xxx dB")
channel_dB_labels[i].set_alignment(1, 1)
vbox.pack_start(channel_dB_labels[i], expand=False, fill=True)
value_label = gtk.Label("Value")
value_label.set_alignment(0, .5)
vbox.pack_start(value_label, expand=False, fill=True)
value_scale = gtk.HScale()
value_scale.set_range(0, 65536)
value_scale.set_range(0, 65536*3/2)
value_scale.set_value_pos(gtk.POS_RIGHT)
value_scale.set_digits(0)
vbox.pack_start(value_scale, expand=False, fill=True)
value_dB_label = gtk.Label("-xxx dB")
value_dB_label.set_alignment(1, 1)
vbox.pack_start(value_dB_label, expand=False, fill=True)
balance_label = gtk.Label("Balance")
balance_label.set_alignment(0, .5)