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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, kleines Filmröllchen <filmroellchen@serenityos.org>
* Copyright (c) 2021, David Isaksson <davidisaksson93@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Variant.h>
#include <AK/Vector.h>
#include <LibAudio/Buffer.h>
#include <LibAudio/ClientConnection.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/EventLoop.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <math.h>
#include <stdio.h>
#include <sys/ioctl.h>
enum AudioVariable : u32 {
Volume,
Mute,
SampleRate
};
// asctl: audio server control utility
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
Core::EventLoop loop;
auto audio_client = Audio::ClientConnection::construct();
String command = String::empty();
Vector<StringView> command_arguments;
bool human_mode = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("Send control signals to the audio server and hardware.");
args_parser.add_option(human_mode, "Print human-readable output", "human-readable", 'h');
args_parser.add_positional_argument(command, "Command, either (g)et or (s)et\n\n\tThe get command accepts a list of variables to print.\n\tThey are printed in the given order.\n\tIf no value is specified, all are printed.\n\n\tThe set command accepts a any number of variables\n\tfollowed by the value they should be set to.\n\n\tPossible variables are (v)olume, (m)ute, sample(r)ate.\n", "command");
args_parser.add_positional_argument(command_arguments, "Arguments for the command", "args", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
TRY(Core::System::unveil(nullptr, nullptr));
TRY(Core::System::pledge("stdio rpath wpath recvfd", nullptr));
if (command.equals_ignoring_case("get") || command == "g") {
// Get variables
Vector<AudioVariable> values_to_print;
if (command_arguments.is_empty()) {
values_to_print.append(AudioVariable::Volume);
values_to_print.append(AudioVariable::Mute);
values_to_print.append(AudioVariable::SampleRate);
} else {
for (auto& variable : command_arguments) {
if (variable.is_one_of("v"sv, "volume"sv))
values_to_print.append(AudioVariable::Volume);
else if (variable.is_one_of("m"sv, "mute"sv))
values_to_print.append(AudioVariable::Mute);
else if (variable.is_one_of("r"sv, "samplerate"sv))
values_to_print.append(AudioVariable::SampleRate);
else {
warnln("Error: Unrecognized variable {}", variable);
return 1;
}
}
}
for (auto to_print : values_to_print) {
switch (to_print) {
case AudioVariable::Volume: {
auto volume = static_cast<int>(round(audio_client->get_main_mix_volume() * 100));
if (human_mode)
outln("Volume: {}%", volume);
else
out("{} ", volume);
break;
}
case AudioVariable::Mute: {
bool muted = audio_client->is_main_mix_muted();
if (human_mode)
outln("Muted: {}", muted ? "Yes" : "No");
else
out("{} ", muted ? 1 : 0);
break;
}
case AudioVariable::SampleRate: {
u32 sample_rate = audio_client->get_sample_rate();
if (human_mode)
outln("Sample rate: {:5d} Hz", sample_rate);
else
out("{} ", sample_rate);
break;
}
}
}
if (!human_mode)
outln();
} else if (command.equals_ignoring_case("set") || command == "s") {
// Set variables
HashMap<AudioVariable, Variant<int, bool>> values_to_set;
for (size_t i = 0; i < command_arguments.size(); ++i) {
if (i == command_arguments.size() - 1) {
warnln("Error: value missing for last variable");
return 1;
}
auto& variable = command_arguments[i];
if (variable.is_one_of("v"sv, "volume"sv)) {
auto volume = command_arguments[++i].to_int();
if (!volume.has_value()) {
warnln("Error: {} is not an integer volume", command_arguments[i - 1]);
return 1;
}
if (volume.value() < 0 || volume.value() > 100) {
warnln("Error: {} is not between 0 and 100", command_arguments[i - 1]);
return 1;
}
values_to_set.set(AudioVariable::Volume, volume.value());
} else if (variable.is_one_of("m"sv, "mute"sv)) {
auto& mute_text = command_arguments[++i];
bool mute;
if (mute_text.equals_ignoring_case("true") || mute_text == "1") {
mute = true;
} else if (mute_text.equals_ignoring_case("false") || mute_text == "0") {
mute = false;
} else {
warnln("Error: {} is not one of {{0, 1, true, false}}", mute_text);
return 1;
}
values_to_set.set(AudioVariable::Mute, mute);
} else if (variable.is_one_of("r"sv, "samplerate"sv)) {
auto sample_rate = command_arguments[++i].to_int();
if (!sample_rate.has_value()) {
warnln("Error: {} is not an integer sample rate", command_arguments[i - 1]);
return 1;
}
values_to_set.set(AudioVariable::SampleRate, sample_rate.value());
} else {
warnln("Error: Unrecognized variable {}", command_arguments[i]);
return 1;
}
}
for (auto to_set : values_to_set) {
switch (to_set.key) {
case AudioVariable::Volume: {
int& volume = to_set.value.get<int>();
audio_client->set_main_mix_volume(static_cast<double>(volume) / 100);
break;
}
case AudioVariable::Mute: {
bool& mute = to_set.value.get<bool>();
audio_client->set_main_mix_muted(mute);
break;
}
case AudioVariable::SampleRate: {
int& sample_rate = to_set.value.get<int>();
audio_client->set_sample_rate(sample_rate);
break;
}
}
}
}
return 0;
}
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