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/*
* Copyright 2003-2020 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "AllowedFormat.hxx"
#include "pcm/AudioParser.hxx"
#include "util/IterableSplitString.hxx"
#include "util/StringBuffer.hxx"
#include "config.h"
#include <stdexcept>
namespace Alsa {
AllowedFormat::AllowedFormat(StringView s)
{
#ifdef ENABLE_DSD
const StringView dop_tail("=dop");
if (s.EndsWith(dop_tail)) {
dop = true;
s.size -= dop_tail.size;
} else
dop = false;
#endif
char buffer[64];
if (s.size >= sizeof(buffer))
throw std::invalid_argument("Failed to parse audio format");
memcpy(buffer, s.data, s.size);
buffer[s.size] = 0;
format = ParseAudioFormat(buffer, true);
#ifdef ENABLE_DSD
if (dop && format.format != SampleFormat::DSD)
throw std::invalid_argument("DoP works only with DSD");
#endif
}
std::forward_list<AllowedFormat>
AllowedFormat::ParseList(StringView s)
{
std::forward_list<AllowedFormat> list;
auto tail = list.before_begin();
for (const auto i : IterableSplitString(s, ' '))
if (!i.empty())
tail = list.emplace_after(tail, i);
return list;
}
std::string
ToString(const std::forward_list<AllowedFormat> &allowed_formats) noexcept
{
std::string result;
for (const auto &i : allowed_formats) {
if (!result.empty())
result.push_back(' ');
result += ::ToString(i.format);
#ifdef ENABLE_DSD
if (i.dop)
result += "=dop";
#endif
}
return result;
}
} // namespace Alsa
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