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/*
* Copyright (C) 2016 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <limits.h>
#include <assert.h>
#include <pulse/pulseaudio.h>
#include <sys/queue.h>
#include "pacontrolmodel.h"
#include "pac.h"
/* FIXME: move these into a pac context */
static pa_threaded_mainloop* m;
TAILQ_HEAD(pac_cstateq, pac_cstate);
static struct pac_cstateq cstateq;
static void add_one_cstate(int type, int index, const pa_cvolume *cvolume)
{
struct pac_cstate *cstate;
int i;
cstate = pa_xnew(struct pac_cstate, 1);
cstate->type = type;
cstate->index = index;
cstate->cvolume.channels = cvolume->channels;
for (i = 0; i < cvolume->channels; i++)
cstate->cvolume.values[i] = cvolume->values[i];
TAILQ_INSERT_TAIL(&cstateq, cstate, tailq);
}
static void get_source_list_cb(pa_context *c,
const pa_source_info *i,
int eol,
void *data)
{
int chan;
if (eol < 0) {
fprintf(stderr, "get source list: %s\n",
pa_strerror(pa_context_errno(c)));
pa_threaded_mainloop_stop(m);
return;
}
if (!eol) {
assert(i);
add_one_cstate(C_SOURCE, i->index, &i->volume);
for (chan = 0; chan < i->channel_map.channels; chan++) {
add_one_control(data, i->index, i->description,
C_SOURCE, chan,
channel_position_string[i->channel_map.map[chan]],
i->volume.values[chan]);
}
}
}
static void get_sink_list_cb(pa_context *c,
const pa_sink_info *i,
int eol,
void *data)
{
int chan;
if(eol < 0) {
fprintf(stderr, "get sink list: %s\n",
pa_strerror(pa_context_errno(c)));
pa_threaded_mainloop_stop(m);
return;
}
if(!eol) {
assert(i);
add_one_cstate(C_SINK, i->index, &i->volume);
for (chan = 0; chan < i->channel_map.channels; chan++) {
add_one_control(data, i->index, i->description,
C_SINK, chan,
channel_position_string[i->channel_map.map[chan]],
i->volume.values[chan]);
}
}
}
static void context_state_cb(pa_context *c, void *data) {
pa_operation *o;
assert(c);
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))) {
fprintf(stderr, "get source info list: %s\n",
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))) {
fprintf(stderr, "get sink info list: %s\n",
pa_strerror(pa_context_errno(c)));
return;
}
break;
case PA_CONTEXT_TERMINATED:
pa_threaded_mainloop_stop(m);
break;
case PA_CONTEXT_FAILED:
default:
fprintf(stderr, "PA connection failed: %s\n",
pa_strerror(pa_context_errno(c)));
pa_threaded_mainloop_stop(m);
}
}
static void pac_set_source_volume_cb(pa_context *c, int success, void *userdata __attribute__((unused))) {
assert(c);
if (!success)
fprintf(stderr, "Set source volume: %s\n",
pa_strerror(pa_context_errno(c)));
}
static void pac_set_sink_volume_cb(pa_context *c, int success, void *userdata __attribute__((unused))) {
assert(c);
if (!success)
fprintf(stderr, "Set source volume: %s\n",
pa_strerror(pa_context_errno(c)));
}
void pac_set_volume(pa_context *c, uint32_t type, uint32_t idx, uint32_t channel, uint32_t volume)
{
pa_operation *o;
struct pac_cstate *cstate;
TAILQ_FOREACH(cstate, &cstateq, tailq)
if (cstate->index == idx)
break;
cstate->cvolume.values[channel] = volume;
if (type == C_SOURCE) {
if (!(o = pa_context_set_source_volume_by_index(c, idx, &cstate->cvolume, pac_set_source_volume_cb, NULL))) {
fprintf(stderr, "set source #%d channel #%d volume: %s\n",
idx, channel, pa_strerror(pa_context_errno(c)));
return;
}
pa_operation_unref(o);
} else if (type == C_SINK) {
if (!(o = pa_context_set_sink_volume_by_index(c, idx, &cstate->cvolume, pac_set_sink_volume_cb, NULL))) {
fprintf(stderr, "set sink #%d channel #%d volume: %s\n",
idx, channel, pa_strerror(pa_context_errno(c)));
return;
}
pa_operation_unref(o);
}
}
pa_context *pac_init(void *this, const char *name) {
pa_context *c;
pa_mainloop_api *mapi;
char *server = NULL;
char *client = pa_xstrdup(name);
TAILQ_INIT(&cstateq);
if (!(m = pa_threaded_mainloop_new())) {
fprintf(stderr, "pa_mainloop_new() failed.\n");
return NULL;
}
pa_threaded_mainloop_set_name(m, "pa_mainloop");
mapi = pa_threaded_mainloop_get_api(m);
if (!(c = pa_context_new(mapi, client))) {
fprintf(stderr, "pa_context_new() failed.\n");
goto exit;
}
pa_context_set_state_callback(c, context_state_cb, this);
if (pa_context_connect(c, server, 0, NULL) < 0) {
fprintf(stderr, "pa_context_connect(): %s", pa_strerror(pa_context_errno(c)));
goto exit;
}
if (pa_threaded_mainloop_start(m) < 0) {
fprintf(stderr, "pa_mainloop_run() failed.\n");
goto exit;
}
return c;
exit:
if (c)
pa_context_unref(c);
if (m)
pa_threaded_mainloop_free(m);
pa_xfree(client);
return NULL;
}
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