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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 <pulse/simple.h>
#include <pulse/error.h>
#include "pthread_utils.h"
uint32_t options = BO_NONE;
uint32_t version = 0;
static uint32_t insize, buff_size;
static float *pa_buff = NULL;
static pa_simple *pa_s;
int8_t
create(Context_t *ctx)
{
int error;
pa_sample_spec ss;
insize = Context_get_input_size(ctx);
buff_size = insize * 2 * sizeof(float);
pa_buff = xcalloc(buff_size, sizeof(float));
ss.format = PA_SAMPLE_FLOAT32LE;
ss.channels = 2;
ss.rate = 44100;
pa_s = pa_simple_new(NULL, /* PulseAudio server. */
"Biniou", /* Application's name. */
PA_STREAM_RECORD, /* Stream direction. */
NULL, /* Sink Device. */
"Biniou-read", /* Stream description. */
&ss, /* Sample format. */
NULL, /* Channel map */
NULL, /* Buffering attributes. */
&error /* Error code. */
);
if (NULL == pa_s)
xerror(__FILE__": pa_simple_new() failed: %s\n",
pa_strerror(error));
#ifdef DEBUG
char ss_a[PA_SAMPLE_SPEC_SNPRINT_MAX];
pa_sample_spec_snprint(ss_a, sizeof(ss_a), &ss);
printf("Opening the recording stream with sample specification '%s'.\n", ss_a);
#endif
ctx->input = Input_new(insize);
okdone("pulseaudio initialized");
return 1;
}
void
destroy(Context_t *ctx)
{
pa_simple_free(pa_s);
Input_delete(ctx->input);
xfree(pa_buff);
}
void *
jthread(void *args)
{
Context_t *ctx = (Context_t *)args;
while (ctx->running) {
int n;
int error;
n = pa_simple_read(pa_s, (void *)pa_buff, buff_size, &error);
if (!ctx->input->mute && (n != -1)) {
uint32_t m, idx;
if (!xpthread_mutex_lock(&ctx->input->mutex)) {
for (m = 0, idx = 0; idx < insize; idx++) {
ctx->input->data[A_LEFT][idx] = pa_buff[m++];
ctx->input->data[A_RIGHT][idx] = pa_buff[m++];
}
Input_set(ctx->input, A_STEREO);
xpthread_mutex_unlock(&ctx->input->mutex);
}
}
}
return NULL;
}
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