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60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* \brief Mixer channel class
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* \author Josef Soentgen
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* \date 2015-10-15
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*/
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/*
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* Copyright (C) 2015-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__MIXER__CHANNEL_H_
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#define _INCLUDE__MIXER__CHANNEL_H_
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#include <util/string.h>
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#include <util/xml_node.h>
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namespace Mixer {
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struct Channel;
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}
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struct Mixer::Channel
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{
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struct Invalid_channel { };
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using Label = Genode::String<128>;
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using Name = Genode::String<32>;
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enum Number { INVALID = -1, LEFT, RIGHT, MAX_CHANNELS };
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enum Type { TYPE_INVALID, INPUT, OUTPUT };
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enum Volume_level { MIN = 0, MAX = 100 };
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Type type { TYPE_INVALID };
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Number number { INVALID };
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Label label { };
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int volume { MIN };
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bool active { false };
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bool muted { false };
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Channel(Genode::Xml_node const &node)
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{
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using Type = Genode::String<8>;
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Type const type_name = node.attribute_value("type", Type());
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if (type_name == "input") type = INPUT;
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else if (type_name == "output") type = OUTPUT;
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else throw Invalid_channel();
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label = node.attribute_value("label", Label());
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number = (Channel::Number) node.attribute_value("number", 0L);
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volume = node.attribute_value("volume", 0L);
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active = node.attribute_value("active", true);
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muted = node.attribute_value("muted", true);
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}
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};
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#endif /* _INCLUDE__MIXER__CHANNEL_H_ */
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