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#include <glib.h>
#include <pulse/pulseaudio.h>
#include <pulse/glib-mainloop.h>
#include "sink_input.h"
#include "sink.h"
#include "interface.h"
#include "pa-sink-ctl.h"
pa_context *context = NULL;
gboolean context_ready = FALSE;
static gboolean info_callbacks_finished = TRUE;
static gboolean info_callbacks_blocked = FALSE;
int main(int argc, char** argv)
{
pa_mainloop_api *mainloop_api = NULL;
pa_glib_mainloop *m = NULL;
sink_list = sink_list_alloc();
GMainLoop *g_loop = g_main_loop_new(NULL, FALSE);
interface_init();
if (!(m = pa_glib_mainloop_new(NULL))) {
interface_clear();
g_printerr("error: pa_glib_mainloop_new() failed.\n");
return -1;
}
mainloop_api = pa_glib_mainloop_get_api(m);
if (!(context = pa_context_new(mainloop_api, "pa-sink-ctl"))) {
interface_clear();
g_printerr("error: pa_context_new() failed.\n");
return -1;
}
// define callback for connection init
pa_context_set_state_callback(context, context_state_callback, g_loop);
if (pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL)) {
interface_clear();
g_printerr("error: pa_context_connect() failed.\n");
}
g_main_loop_run(g_loop);
interface_clear();
sink_list_free(sink_list);
pa_glib_mainloop_free(m);
g_main_loop_unref(g_loop);
return 0;
}
static void subscribe_cb(pa_context *c, pa_subscription_event_type_t t, guint32 idx, gpointer userdata)
{
if (!info_callbacks_finished)
info_callbacks_blocked = TRUE;
else
collect_all_info();
}
/*
* is called after connection
*/
void context_state_callback(pa_context *c, gpointer userdata)
{
static pa_operation *o = NULL;
context_ready = FALSE;
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
status("connecting...");
break;
case PA_CONTEXT_AUTHORIZING:
status("authorizing...");
break;
case PA_CONTEXT_SETTING_NAME:
status("setting name...");
break;
case PA_CONTEXT_READY:
collect_all_info();
pa_context_set_subscribe_callback(context, subscribe_cb, NULL);
g_assert((o = pa_context_subscribe(c, (pa_subscription_mask_t) (
PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SINK_INPUT
), NULL, NULL)));
context_ready = TRUE;
status("ready to process events.");
break;
case PA_CONTEXT_FAILED:
status("cannot connect!");
break;
case PA_CONTEXT_TERMINATED:
g_assert(o != NULL);
pa_operation_cancel(o);
pa_operation_unref(o);
o = NULL;
status("connection terminated.");
g_main_loop_quit((GMainLoop *)userdata);
break;
default:
status("unknown state");
break;
}
}
/*
* the begin of the callback loops
*/
void get_sink_info_callback(pa_context *c, const pa_sink_info *i, gint is_last, gpointer userdata)
{
g_assert(userdata != NULL);
GArray *sink_list_tmp = userdata;
if (is_last < 0) {
g_printerr("Failed to get sink information: %s\n", pa_strerror(pa_context_errno(c)));
quit();
}
if (is_last) {
pa_operation_unref(pa_context_get_sink_input_info_list(c, get_sink_input_info_callback, sink_list_tmp));
return;
}
g_array_append_val(sink_list_tmp, ((sink_info) {
.index = i->index,
.mute = i->mute,
.vol = pa_cvolume_avg(&i->volume),
.channels = i->volume.channels,
.name = g_strdup(i->name),
.device = pa_proplist_contains(i->proplist, "device.product.name") ?
g_strdup(pa_proplist_gets(i->proplist, "device.product.name")) : NULL,
.input_list = sink_input_list_alloc()
}));
}
/*
* is called after sink-input
*/
void get_sink_input_info_callback(pa_context *c, const pa_sink_input_info *i, gint is_last, gpointer userdata)
{
g_assert(userdata != NULL);
GArray *sink_list_tmp = userdata;
if (is_last < 0) {
g_printerr("Failed to get sink input information: %s\n", pa_strerror(pa_context_errno(c)));
return;
}
if (is_last) {
info_callbacks_finished = TRUE;
sink_list_free(sink_list);
sink_list = sink_list_tmp;
print_sink_list();
if (info_callbacks_blocked) {
info_callbacks_blocked = FALSE;
collect_all_info();
}
return;
}
if (!(i->client != PA_INVALID_INDEX)) return;
g_array_append_val(g_array_index(sink_list_tmp, sink_info, i->sink).input_list, ((sink_input_info) {
.index = i->index,
.sink = i->sink,
.name = pa_proplist_contains(i->proplist, "application.name") ?
g_strdup(pa_proplist_gets(i->proplist, "application.name")):
g_strdup(i->name),
.mute = i->mute,
.channels = i->volume.channels,
.vol = pa_cvolume_avg(&i->volume),
.pid = NULL /* maybe obsolete */
}));
}
void quit(void)
{
pa_context_disconnect(context);
}
/*
* is called, after user input
*/
void change_callback(pa_context* c, gint success, gpointer userdata)
{
return;
}
void collect_all_info(void)
{
if (!info_callbacks_finished)
return;
info_callbacks_finished = FALSE;
pa_operation_unref(pa_context_get_sink_info_list(context, get_sink_info_callback, sink_list_alloc()));
}
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