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/*
* Copyright 2003-2016 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 "config.h"
#include "ReplayGainConfig.hxx"
#include "Idle.hxx"
#include "config/Param.hxx"
#include "config/ConfigGlobal.hxx"
#include "system/FatalError.hxx"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
ReplayGainMode replay_gain_mode = REPLAY_GAIN_OFF;
static constexpr bool DEFAULT_REPLAYGAIN_LIMIT = true;
float replay_gain_preamp = 1.0;
float replay_gain_missing_preamp = 1.0;
bool replay_gain_limit = DEFAULT_REPLAYGAIN_LIMIT;
const char *
replay_gain_get_mode_string(void)
{
switch (replay_gain_mode) {
case REPLAY_GAIN_AUTO:
return "auto";
case REPLAY_GAIN_OFF:
return "off";
case REPLAY_GAIN_TRACK:
return "track";
case REPLAY_GAIN_ALBUM:
return "album";
}
assert(false);
gcc_unreachable();
}
bool
replay_gain_set_mode_string(const char *p)
{
assert(p != nullptr);
if (strcmp(p, "off") == 0)
replay_gain_mode = REPLAY_GAIN_OFF;
else if (strcmp(p, "track") == 0)
replay_gain_mode = REPLAY_GAIN_TRACK;
else if (strcmp(p, "album") == 0)
replay_gain_mode = REPLAY_GAIN_ALBUM;
else if (strcmp(p, "auto") == 0)
replay_gain_mode = REPLAY_GAIN_AUTO;
else
return false;
idle_add(IDLE_OPTIONS);
return true;
}
void replay_gain_global_init(void)
{
const struct config_param *param =
config_get_param(ConfigOption::REPLAYGAIN);
if (param != nullptr &&
!replay_gain_set_mode_string(param->value.c_str())) {
FormatFatalError("replaygain value \"%s\" at line %i is invalid\n",
param->value.c_str(), param->line);
}
param = config_get_param(ConfigOption::REPLAYGAIN_PREAMP);
if (param) {
char *test;
float f = strtod(param->value.c_str(), &test);
if (*test != '\0') {
FormatFatalError("Replaygain preamp \"%s\" is not a number at "
"line %i\n",
param->value.c_str(), param->line);
}
if (f < -15 || f > 15) {
FormatFatalError("Replaygain preamp \"%s\" is not between -15 and"
"15 at line %i\n",
param->value.c_str(), param->line);
}
replay_gain_preamp = pow(10, f / 20.0);
}
param = config_get_param(ConfigOption::REPLAYGAIN_MISSING_PREAMP);
if (param) {
char *test;
float f = strtod(param->value.c_str(), &test);
if (*test != '\0') {
FormatFatalError("Replaygain missing preamp \"%s\" is not a number at "
"line %i\n",
param->value.c_str(), param->line);
}
if (f < -15 || f > 15) {
FormatFatalError("Replaygain missing preamp \"%s\" is not between -15 and"
"15 at line %i\n",
param->value.c_str(), param->line);
}
replay_gain_missing_preamp = pow(10, f / 20.0);
}
replay_gain_limit = config_get_bool(ConfigOption::REPLAYGAIN_LIMIT,
DEFAULT_REPLAYGAIN_LIMIT);
}
ReplayGainMode
replay_gain_get_real_mode(bool random_mode)
{
ReplayGainMode rgm;
rgm = replay_gain_mode;
if (rgm == REPLAY_GAIN_AUTO)
rgm = random_mode ? REPLAY_GAIN_TRACK : REPLAY_GAIN_ALBUM;
return rgm;
}
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