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/*
* Copyright (C) 2016,2017 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "paclient.h"
#include <QtCore/QDebug>
PaClient::PaClient()
: m_init(false), m_ml(nullptr), m_mlapi(nullptr), m_ctx(nullptr)
{
}
PaClient::~PaClient()
{
if (m_init)
close();
}
void PaClient::close()
{
if (!m_init) return;
pa_threaded_mainloop_stop(m_ml);
pa_threaded_mainloop_free(m_ml);
m_init = false;
}
static void set_sink_volume_cb(pa_context *c, int success, void *data __attribute__((unused)))
{
if (!success)
qWarning() << "PaClient: set sink volume: " <<
pa_strerror(pa_context_errno(c));
}
static void set_source_volume_cb(pa_context *c, int success, void *data __attribute__((unused)))
{
if (!success)
qWarning() << "PaClient: set source volume: " <<
pa_strerror(pa_context_errno(c));
}
void PaClient::setVolume(uint32_t type, uint32_t index, uint32_t channel, uint32_t volume)
{
pa_operation *o;
pa_context *c = context();
pa_cvolume *cvolume = NULL;
if (type == C_SINK) {
cvolume = m_sink_states.value(index);
cvolume->values[channel] = volume;
if (!(o = pa_context_set_sink_volume_by_index(c, index, cvolume, set_sink_volume_cb, NULL))) {
qWarning() << "PaClient: set sink #" << index <<
" channel #" << channel <<
" volume: " << pa_strerror(pa_context_errno(c));
return;
}
pa_operation_unref(o);
} else if (type == C_SOURCE) {
cvolume = m_sink_states.value(index);
cvolume->values[channel] = volume;
if (!(o = pa_context_set_source_volume_by_index(c, index, cvolume, set_source_volume_cb, NULL))) {
qWarning() << "PaClient: set source #" << index <<
" channel #" << channel <<
" volume: " << pa_strerror(pa_context_errno(c));
return;
}
pa_operation_unref(o);
}
}
void get_source_list_cb(pa_context *c,
const pa_source_info *i,
int eol,
void *data)
{
int chan;
PaClient *self = reinterpret_cast<PaClient*>(data);
if (eol < 0) {
qWarning() << "PaClient: get source list: " <<
pa_strerror(pa_context_errno(c));
self->close();
return;
}
if (!eol) {
self->addOneControlState(C_SOURCE, i->index, &i->volume);
for (chan = 0; chan < i->channel_map.channels; chan++) {
emit self->controlAdded(i->index, QString(i->description), C_SOURCE, chan,
channel_position_string[i->channel_map.map[chan]],
i->volume.values[chan]);
}
}
}
void get_sink_list_cb(pa_context *c,
const pa_sink_info *i,
int eol,
void *data)
{
int chan;
PaClient *self = reinterpret_cast<PaClient*>(data);
if(eol < 0) {
qWarning() << "PaClient: get sink list: " <<
pa_strerror(pa_context_errno(c));
self->close();
return;
}
if(!eol) {
self->addOneControlState(C_SINK, i->index, &i->volume);
for (chan = 0; chan < i->channel_map.channels; chan++) {
emit self->controlAdded(i->index, QString(i->description), C_SINK, chan,
channel_position_string[i->channel_map.map[chan]],
i->volume.values[chan]);
}
}
}
void context_state_cb(pa_context *c, void *data)
{
pa_operation *o;
PaClient *self = reinterpret_cast<PaClient*>(data);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY:
// Fetch the controls of interest
if (!(o = pa_context_get_source_info_list(c, get_source_list_cb, data))) {
qWarning() << "PaClient: get source info list: " <<
pa_strerror(pa_context_errno(c));
return;
}
pa_operation_unref(o);
if (!(o = pa_context_get_sink_info_list(c, &get_sink_list_cb, data))) {
qWarning() << "PaClient: get sink info list: " <<
pa_strerror(pa_context_errno(c));
return;
}
break;
case PA_CONTEXT_TERMINATED:
self->close();
break;
case PA_CONTEXT_FAILED:
default:
qCritical() << "PaClient: connection failed: " <<
pa_strerror(pa_context_errno(c));
self->close();
break;
}
}
void PaClient::init()
{
m_ml = pa_threaded_mainloop_new();
if (!m_ml) {
qCritical("PaClient: failed to create mainloop");
return;
}
pa_threaded_mainloop_set_name(m_ml, "PaClient mainloop");
m_mlapi = pa_threaded_mainloop_get_api(m_ml);
lock();
m_ctx = pa_context_new(m_mlapi, "Mixer");
if (!m_ctx) {
qCritical("PaClient: failed to create context");
pa_threaded_mainloop_free(m_ml);
return;
}
pa_context_set_state_callback(m_ctx, context_state_cb, this);
if (pa_context_connect(m_ctx, 0, (pa_context_flags_t)0, 0) < 0) {
qCritical("PaClient: failed to connect");
pa_context_unref(m_ctx);
pa_threaded_mainloop_free(m_ml);
return;
}
if (pa_threaded_mainloop_start(m_ml) != 0) {
qCritical("PaClient: failed to start mainloop");
pa_context_unref(m_ctx);
pa_threaded_mainloop_free(m_ml);
return;
}
unlock();
m_init = true;
}
void PaClient::addOneControlState(int type, int index, const pa_cvolume *cvolume)
{
int i;
pa_cvolume *cvolume_new;
cvolume_new = new pa_cvolume;
cvolume_new->channels = cvolume->channels;
for (i = 0; i < cvolume->channels; i++)
cvolume_new->values[i] = cvolume->values[i];
if (type == C_SINK)
m_sink_states.insert(index, cvolume_new);
else if (type == C_SOURCE)
m_source_states.insert(index, cvolume_new);
}
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