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/*
* Copyright (C) 2022 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2022 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-units
* Created on: 24 нояб. 2022 г.
*
* lsp-dsp-units 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-dsp-units 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-dsp-units. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_UNITS_SAMPLING_HELPERS_BATCH_H_
#define LSP_PLUG_IN_DSP_UNITS_SAMPLING_HELPERS_BATCH_H_
#include <lsp-plug.in/dsp-units/version.h>
#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/dsp-units/iface/IStateDumper.h>
#include <lsp-plug.in/dsp-units/sampling/types.h>
namespace lsp
{
namespace dspu
{
namespace playback
{
/**
* The type of the sample range
*/
enum batch_type_t
{
BATCH_NONE, // The batch is empty, nothing to do
BATCH_HEAD, // The batch is associated with the head part of the sample
BATCH_LOOP, // The batch is associated with the loop part of the sample
BATCH_TAIL // The batch is associated with the tail part of the sample
};
/**
* Low-level data stucture that defines the range of the sample that should be played
*/
typedef struct batch_t
{
wsize_t nTimestamp; // The start of the batch in the sample timeline
size_t nStart; // Start of the sample segment to play
size_t nEnd; // End of the sample segment to play
size_t nFadeIn; // The fade-in time in samples
size_t nFadeOut; // The fade-out time in samples
batch_type_t enType; // Type of the batch
} play_batch_t;
LSP_DSP_UNITS_PUBLIC
void clear_batch(batch_t *b);
LSP_DSP_UNITS_PUBLIC
void dump_batch_plain(IStateDumper *v, const batch_t *b);
LSP_DSP_UNITS_PUBLIC
void dump_batch(IStateDumper *v, const batch_t *b);
LSP_DSP_UNITS_PUBLIC
void dump_batch(IStateDumper *v, const char *name, const batch_t *b);
LSP_DSP_UNITS_PUBLIC
size_t put_batch_linear_direct(float *dst, const float *src, const batch_t *b, wsize_t timestamp, size_t samples);
LSP_DSP_UNITS_PUBLIC
size_t put_batch_const_power_direct(float *dst, const float *src, const batch_t *b, wsize_t timestamp, size_t samples);
LSP_DSP_UNITS_PUBLIC
size_t put_batch_linear_reverse(float *dst, const float *src, const batch_t *b, wsize_t timestamp, size_t samples);
LSP_DSP_UNITS_PUBLIC
size_t put_batch_const_power_reverse(float *dst, const float *src, const batch_t *b, wsize_t timestamp, size_t samples);
} /* namespace playback */
} /* namespace dspu */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_DSP_UNITS_SAMPLING_HELPERS_BATCH_H_ */
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