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#include <stdio.h>
#include <pulse/pulseaudio.h>
#include <ncurses.h>
#include <string.h>
#include <stdlib.h>
#define VOLUME_MAX UINT16_MAX
#define VOLUME_BAR_LEN 50
static void context_state_callback(pa_context*, void *);
static void get_sink_input_info_callback(pa_context *, const pa_sink_input_info*, int, void *);
static void print_sinks(void);
static void print_volume(pa_volume_t volume);
int cmp_sink_input_list(const void *a, const void *b);
typedef struct _sink_input_info {
uint32_t sink;
char *name;
char *pid;
pa_volume_t vol;
} sink_input_info;
static sink_input_info** sink_input_list = 0;
int sink_input_counter;
int sink_input_max;
static pa_mainloop_api *mainloop_api = NULL;
static pa_context *context = NULL;
int main(int argc, char** argv)
{
sink_input_counter = 0;
sink_input_max = 1;
sink_input_list = (sink_input_info**) calloc(sink_input_max, sizeof(sink_input_info*));
pa_mainloop *m = NULL;
int ret = 1;
if(!(m = pa_mainloop_new())) {
printf("error: pa_mainloop_new() failed.\n");
return -1;
}
mainloop_api = pa_mainloop_get_api(m);
if (!(context = pa_context_new(mainloop_api, "pa-sink-ctl"))) {
printf("error: pa_context_new() failed.\n");
return -1;
}
pa_context_set_state_callback(context, context_state_callback, NULL);
if (pa_context_connect(context, "tcp:127.0.0.1:4713", PA_CONTEXT_NOAUTOSPAWN, NULL)) {
printf("error: pa_context_connect() failed.\n");
}
if (pa_mainloop_run(m, &ret) < 0) {
printf("error: pa_mainloop_run() failed.\n");
return -1;
}
return ret;
}
static void context_state_callback(pa_context *c, void *userdata) {
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
printf("connecting...\n");
break;
case PA_CONTEXT_AUTHORIZING:
printf("authorizing...\n");
break;
case PA_CONTEXT_SETTING_NAME:
printf("setting name\n");
break;
case PA_CONTEXT_READY:
printf("Menue\n");
pa_operation_unref(pa_context_get_sink_input_info_list(c, get_sink_input_info_callback, NULL));
break;
default:
printf("unknown state\n");
break;
}
}
static void get_sink_input_info_callback(pa_context *c, const pa_sink_input_info *i, int is_last, void *userdata) {
char t[32], k[32]; //,cv[PA_CVOLUME_SNPRINT_MAX];
if (is_last < 0) {
printf("Failed to get sink input information: %s\n", pa_strerror(pa_context_errno(c)));
return;
}
if (is_last) {
print_sinks();
return;
}
snprintf(t, sizeof(t), "%u", i->owner_module);
snprintf(k, sizeof(k), "%u", i->client);
/* printf( "Sink Input #%u"
"\tClient: %s"
"\tSink: %u"
"\tMute: %d"
"\tVolume: %s"
"\tname: %s"
"\tpid: %s\n",
i->index,
i->client != PA_INVALID_INDEX ? k : "n/a",
i->sink,
i->mute,
pa_cvolume_snprint(cv, sizeof(cv), &i->volume),
pa_proplist_gets(i->proplist, "application.name"),
pa_proplist_gets(i->proplist, "application.process.id"));
*/
const char *name = pa_proplist_gets(i->proplist, "application.name");
++sink_input_counter;
if (sink_input_counter >= sink_input_max) {
sink_input_max*=2;
sink_input_list = (sink_input_info**) realloc(sink_input_list, sizeof(sink_input_info*) * sink_input_max);
}
sink_input_list[sink_input_counter-1] = (sink_input_info*) calloc(1, sizeof(sink_input_info));
sink_input_list[sink_input_counter-1]->name = (char*) calloc(strlen(name) + 1, sizeof(char));
sink_input_list[sink_input_counter-1]->sink = i->sink;
strncpy(sink_input_list[sink_input_counter-1]->name, name, strlen(name));
sink_input_list[sink_input_counter-1]->vol = pa_cvolume_avg(&i->volume);
}
void print_sinks(void) {
printf("print sinks: %d\n", sink_input_counter);
qsort(sink_input_list, sink_input_counter, sizeof(sink_input_info*), cmp_sink_input_list);
for(int i = 0; i < sink_input_counter; ++i) {
printf( "%d\t%s\t",
sink_input_list[i]->sink,
sink_input_list[i]->name);
print_volume(sink_input_list[i]->vol);
}
}
void print_volume(pa_volume_t volume) {
unsigned int vol = (unsigned int) ( (((double)volume) / ((double)VOLUME_MAX)) * VOLUME_BAR_LEN );
printf("[");
for (int i = 0; i < vol; ++i)
printf("=");
for (int i = 0; i < VOLUME_BAR_LEN - vol; ++i)
printf(" ");
printf("]\n");
}
int cmp_sink_input_list(const void *a, const void *b) {
sink_input_info* sinka = (sink_input_info*) a;
sink_input_info* sinkb = (sink_input_info*) b;
if (sinka->sink < sinkb->sink)
return -1;
else if (sinka->sink > sinkb->sink)
return 1;
else
return 0;
}
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