77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright 2003-2022 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "AudioFormat.hxx"
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#include "util/StringBuffer.hxx"
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#include <cassert>
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#include <stdio.h>
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void
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AudioFormat::ApplyMask(AudioFormat mask) noexcept
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{
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assert(IsValid());
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assert(mask.IsMaskValid());
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if (mask.sample_rate != 0)
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sample_rate = mask.sample_rate;
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if (mask.format != SampleFormat::UNDEFINED)
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format = mask.format;
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if (mask.channels != 0)
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channels = mask.channels;
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assert(IsValid());
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}
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StringBuffer<24>
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ToString(const AudioFormat af) noexcept
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{
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StringBuffer<24> buffer;
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char *p = buffer.data();
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if (af.format == SampleFormat::DSD && af.sample_rate > 0 &&
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af.sample_rate % 44100 == 0) {
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/* use shortcuts such as "dsd64" which implies the
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sample rate */
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p += sprintf(p, "dsd%u:", af.sample_rate * 8 / 44100);
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} else {
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const char *sample_format = af.format != SampleFormat::UNDEFINED
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? sample_format_to_string(af.format)
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: "*";
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if (af.sample_rate > 0)
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p += sprintf(p, "%u:%s:", af.sample_rate,
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sample_format);
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else
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p += sprintf(p, "*:%s:", sample_format);
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}
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if (af.channels > 0)
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p += sprintf(p, "%u", af.channels);
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else {
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*p++ = '*';
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*p = 0;
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}
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return buffer;
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}
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