diff options
Diffstat (limited to 'src/tests/volume-ui.py')
| -rw-r--r-- | src/tests/volume-ui.py | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/tests/volume-ui.py b/src/tests/volume-ui.py index 6dc1c47d..7909b801 100644 --- a/src/tests/volume-ui.py +++ b/src/tests/volume-ui.py @@ -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) |