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/*
* Copyright 1994-2022 Olivier Girondel
*
* This file is part of lebiniou.
*
* lebiniou 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.
*
* lebiniou 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 lebiniou. If not, see <http://www.gnu.org/licenses/>.
*/
#include "context.h"
#include "parameters.h"
#include "pthread_utils.h"
uint32_t version = 0;
uint32_t options = BO_SFX | BO_NORANDOM | BO_SCHEMES;
enum LayerMode mode = LM_OVERLAY;
char desc[] = "Voiceprint effect";
char dname[] = "Spectrogram";
static Buffer8_t *my_scr = NULL;
static uint16_t *v_start = NULL, *v_end = NULL;
static double volume_scale = 1;
json_t *
get_parameters(const uint8_t fetch_all)
{
json_t *params = json_object();
plugin_parameters_add_double(params, BPP_VOLUME_SCALE, volume_scale, 0.1, 10, 0.1, "Volume scale");
return params;
}
void
set_parameters(const Context_t *ctx, const json_t *in_parameters)
{
plugin_parameter_parse_double_range(in_parameters, BPP_VOLUME_SCALE, &volume_scale);
}
json_t *
parameters(const Context_t *ctx, const json_t *in_parameters, const uint8_t fetch_all)
{
if (NULL != in_parameters) {
set_parameters(ctx, in_parameters);
}
return get_parameters(fetch_all);
}
void
on_switch_on(Context_t *ctx)
{
/* Initialize parameters */
volume_scale = 1;
}
static void
init_v(Context_t *ctx)
{
uint16_t k;
float da_log;
da_log = logf(ctx->input->spectrum_size - 1) / logf(10.0);
for (k = 1; k < ctx->input->spectrum_size; k++) {
v_start[k] = (uint16_t)(logf((float)k)/logf(10.0) / da_log * MAXY);
v_end[k] = (uint16_t)(log1p((float)k)/logf(10.0) / da_log * MAXY); /* log1p(x)=logf(x+1) */
}
}
void
run(Context_t *ctx)
{
Buffer8_t *src = my_scr;
Buffer8_t *dst = passive_buffer(ctx);
uint16_t k;
memmove((void *)src->buffer, (const void *)(src->buffer+sizeof(Pixel_t)), BUFFSIZE-1);
if (!xpthread_mutex_lock(&ctx->input->mutex)) {
for (k = 1; k < ctx->input->spectrum_size; k++) {
Pixel_t color1 = (Pixel_t)(255.0 * ctx->input->spectrum_log[A_MONO][k] * volume_scale);
v_line_nc(src, MAXX, v_start[k], v_end[k] - 1, color1);
}
xpthread_mutex_unlock(&ctx->input->mutex);
}
v_line_nc(src, MINX, MINY, MAXY, 0);
Buffer8_copy(src, dst);
// Buffer8_add(src, dst, 16);
// Buffer8_clear_border(dst);
// Buffer8_copy(active_buffer(ctx->biniou8), passive_buffer(ctx->biniou8));
}
int8_t
create(Context_t *ctx)
{
v_start = xcalloc(ctx->input->spectrum_size, sizeof(uint16_t));
v_end = xcalloc(ctx->input->spectrum_size, sizeof(uint16_t));
my_scr = Buffer8_new();
init_v(ctx);
return 1;
}
void
destroy(Context_t *ctx)
{
Buffer8_delete(my_scr);
xfree(v_start);
xfree(v_end);
}
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