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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugins-limiter
* Created on: 3 авг. 2021 г.
*
* lsp-plugins-limiter is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-plugins-limiter 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-plugins-limiter. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_META_LIMITER_H_
#define PRIVATE_META_LIMITER_H_
#include <lsp-plug.in/plug-fw/meta/types.h>
#include <lsp-plug.in/plug-fw/const.h>
namespace lsp
{
namespace meta
{
struct limiter_metadata
{
static constexpr float HISTORY_TIME = 4.0f; // Amount of time to display history [s]
static constexpr size_t HISTORY_MESH_SIZE = 560; // 420 dots for history
static constexpr size_t OVERSAMPLING_MAX = 8; // Maximum 8x oversampling
static constexpr float LOOKAHEAD_MIN = 0.1f; // No lookahead [ms]
static constexpr float LOOKAHEAD_MAX = 20.0f; // Maximum Lookahead [ms]
static constexpr float LOOKAHEAD_DFL = 5.0f; // Default Lookahead [ms]
static constexpr float LOOKAHEAD_STEP = 0.005f; // Lookahead step
static constexpr float ATTACK_TIME_MIN = 0.25f;
static constexpr float ATTACK_TIME_MAX = 20.0f;
static constexpr float ATTACK_TIME_DFL = 5.0f;
static constexpr float ATTACK_TIME_STEP = 0.0025f;
static constexpr float RELEASE_TIME_MIN = 0.25f;
static constexpr float RELEASE_TIME_MAX = 20.0f;
static constexpr float RELEASE_TIME_DFL = 5.0f;
static constexpr float RELEASE_TIME_STEP = 0.0025f;
static constexpr float ALR_ATTACK_TIME_MIN = 0.1f;
static constexpr float ALR_ATTACK_TIME_MAX = 200.0f;
static constexpr float ALR_ATTACK_TIME_DFL = 5.0f;
static constexpr float ALR_ATTACK_TIME_STEP = 0.0025f;
static constexpr float ALR_RELEASE_TIME_MIN = 10.0f;
static constexpr float ALR_RELEASE_TIME_MAX = 1000.0f;
static constexpr float ALR_RELEASE_TIME_DFL = 50.0f;
static constexpr float ALR_RELEASE_TIME_STEP = 0.0025f;
static constexpr float THRESHOLD_MIN = GAIN_AMP_M_48_DB;
static constexpr float THRESHOLD_MAX = GAIN_AMP_0_DB;
static constexpr float THRESHOLD_DFL = GAIN_AMP_0_DB;
static constexpr float THRESHOLD_STEP = 0.01f;
static constexpr float KNEE_MIN = GAIN_AMP_M_12_DB;
static constexpr float KNEE_MAX = GAIN_AMP_P_12_DB;
static constexpr float KNEE_DFL = GAIN_AMP_0_DB;
static constexpr float KNEE_STEP = 0.01f;
static constexpr float LINKING_MIN = 0;
static constexpr float LINKING_MAX = 100.0f;
static constexpr float LINKING_DFL = 100.0f;
static constexpr float LINKING_STEP = 0.01f;
enum oversampling_mode_t
{
OVS_NONE,
OVS_HALF_2X2,
OVS_HALF_2X3,
OVS_HALF_3X2,
OVS_HALF_3X3,
OVS_HALF_4X2,
OVS_HALF_4X3,
OVS_HALF_6X2,
OVS_HALF_6X3,
OVS_HALF_8X2,
OVS_HALF_8X3,
OVS_FULL_2X2,
OVS_FULL_2X3,
OVS_FULL_3X2,
OVS_FULL_3X3,
OVS_FULL_4X2,
OVS_FULL_4X3,
OVS_FULL_6X2,
OVS_FULL_6X3,
OVS_FULL_8X2,
OVS_FULL_8X3,
OVS_DEFAULT = OVS_NONE
};
enum limiter_mode_t
{
LOM_HERM_THIN,
LOM_HERM_WIDE,
LOM_HERM_TAIL,
LOM_HERM_DUCK,
LOM_EXP_THIN,
LOM_EXP_WIDE,
LOM_EXP_TAIL,
LOM_EXP_DUCK,
LOM_LINE_THIN,
LOM_LINE_WIDE,
LOM_LINE_TAIL,
LOM_LINE_DUCK,
LOM_DEFAULT = LOM_HERM_THIN
};
enum dithering_t
{
DITHER_NONE,
DITHER_7BIT,
DITHER_8BIT,
DITHER_11BIT,
DITHER_12BIT,
DITHER_15BIT,
DITHER_16BIT,
DITHER_23BIT,
DITHER_24BIT,
DITHER_DEFAULT = DITHER_NONE
};
};
extern const meta::plugin_t limiter_mono;
extern const meta::plugin_t limiter_stereo;
extern const meta::plugin_t sc_limiter_mono;
extern const meta::plugin_t sc_limiter_stereo;
} // namespace meta
} // namespace lsp
#endif /* PRIVATE_META_LIMITER_H_ */
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