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/*
* Copyright (C) 2014 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* 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 3 of the License, or
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "dde-pulse.h"
#include <string.h>
#include <stdio.h>
#include "_cgo_export.h"
static void suspended_callback(pa_stream *s, void *userdata) {
/*MainWindow *w = static_cast<MainWindow*>(userdata);*/
/*if (pa_stream_is_suspended(s))*/
/*w->updateVolumeMeter(pa_stream_get_device_index(s), PA_INVALID_INDEX, -1);*/
}
static void read_callback(pa_stream *s, size_t length, void *userdata) {
const void *data;
double v;
if (pa_stream_peek(s, &data, &length) < 0) {
fprintf(stderr, "Failed to read data from stream");
return;
}
if (!data) {
pa_stream_drop(s);
return;
}
assert(length > 0);
assert(length % sizeof(float) == 0);
v = ((const float*) data)[length / sizeof(float) -1];
pa_stream_drop(s);
if (v < 0)
v = 0;
if (v > 1)
v = 1;
go_update_volume_meter(pa_stream_get_device_index(s), pa_stream_get_monitor_stream(s), v);
}
pa_stream* createMonitorStreamForSource(pa_threaded_mainloop* loop, pa_context* ctx, uint32_t source_idx, uint32_t stream_idx, int suspend)
{
stream_idx = -1;
pa_stream *s;
char t[16];
pa_buffer_attr attr;
pa_sample_spec ss;
pa_stream_flags_t flags;
ss.channels = 1;
ss.format = PA_SAMPLE_FLOAT32;
ss.rate = 25;
memset(&attr, 0, sizeof(attr));
attr.fragsize = sizeof(float);
attr.maxlength = (uint32_t) -1;
snprintf(t, sizeof(t), "%u", source_idx);
pa_threaded_mainloop_lock(loop);
if (!(s = pa_stream_new(ctx, "Peak detect", &ss, NULL))) {
pa_threaded_mainloop_unlock(loop);
fprintf(stderr, "Failed to create monitoring stream");
return NULL;
}
if (stream_idx != (uint32_t) -1)
pa_stream_set_monitor_stream(s, stream_idx);
pa_stream_set_read_callback(s, read_callback, NULL);
pa_stream_set_suspended_callback(s, suspended_callback, NULL);
flags = (pa_stream_flags_t) (PA_STREAM_DONT_MOVE | PA_STREAM_PEAK_DETECT | PA_STREAM_ADJUST_LATENCY |
(suspend ? PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND : PA_STREAM_NOFLAGS));
if (pa_stream_connect_record(s, t, &attr, flags) < 0) {
fprintf(stderr, "Failed to connect monitoring stream");
pa_stream_unref(s);
pa_threaded_mainloop_unlock(loop);
return NULL;
}
pa_threaded_mainloop_unlock(loop);
return s;
}
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