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/***
This file is part of snapcast
Copyright (C) 2014-2024 Johannes Pohl
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 3 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, see <http://www.gnu.org/licenses/>.
***/
// local headers
#include "sample_format.hpp"
#include "common/snap_exception.hpp"
#include "common/str_compat.hpp"
#include "common/utils/string_utils.hpp"
// standard headers
#include <iostream>
#include <sstream>
#include <vector>
using namespace std;
SampleFormat::SampleFormat()
{
setFormat(0, 0, 0);
}
SampleFormat::SampleFormat(const std::string& format)
{
setFormat(format);
}
SampleFormat::SampleFormat(uint32_t sampleRate, uint16_t bitsPerSample, uint16_t channels)
{
setFormat(sampleRate, bitsPerSample, channels);
}
string SampleFormat::toString() const
{
stringstream ss;
ss << rate_ << ":" << bits_ << ":" << channels_;
return ss.str();
}
void SampleFormat::setFormat(const std::string& format)
{
std::vector<std::string> strs;
strs = utils::string::split(format, ':');
if (strs.size() == 3)
setFormat(strs[0] == "*" ? 0 : cpt::stoul(strs[0]), strs[1] == "*" ? 0 : static_cast<uint16_t>(cpt::stoul(strs[1])),
strs[2] == "*" ? 0 : static_cast<uint16_t>(cpt::stoul(strs[2])));
else
throw SnapException("sampleformat must be <rate>:<bits>:<channels>");
}
void SampleFormat::setFormat(uint32_t rate, uint16_t bits, uint16_t channels)
{
// needs something like:
// 24_4 = 3 bytes, padded to 4
// 32 = 4 bytes
rate_ = rate;
bits_ = bits;
channels_ = channels;
sample_size_ = bits / 8;
if (bits_ == 24)
sample_size_ = 4;
frame_size_ = channels_ * sample_size_;
// LOG(DEBUG) << "SampleFormat: " << rate << ":" << bits << ":" << channels << "\n";
}
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