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a5e133084b
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a5e133084b | |||
e45a17a138 | |||
7cfe67c002 | |||
b72ba45c79 |
1
Makefile
1
Makefile
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@ -15,6 +15,7 @@ $(BIN): src/main.c src/plug.c src/socket.c src/util.c
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modules/%.dim: src/modules/%.c
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mkdir -p $(dir $@)
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$(CC) -o $@ $^ -rdynamic -shared -fPIC $(CCARGS)
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compile_commands.json:
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63
src/modules/volume.h
Normal file
63
src/modules/volume.h
Normal file
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@ -0,0 +1,63 @@
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// Authored by xomf <xomf@the-atf-shot-my.dog>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <alsa/asoundlib.h>
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typedef struct plug_t {
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char* name;
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char* version;
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} plug_t;
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static plug_t* p = {0};
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int get_alsa_volume(void) {
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long min, max, volume;
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snd_mixer_t* handle;
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snd_mixer_selem_id_t* sid;
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const char* card = "default";
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const char* selem_name = "Master";
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snd_mixer_open(&handle, 0);
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snd_mixer_attach(handle, card);
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snd_mixer_selem_register(handle, NULL, NULL);
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snd_mixer_load(handle);
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snd_mixer_selem_id_alloca(&sid);
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snd_mixer_selem_id_set_index(sid, 0);
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snd_mixer_selem_id_set_name(sid, selem_name);
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snd_mixer_elem_t* elem = snd_mixer_find_selem(handle, sid);
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snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
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snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &volume);
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snd_mixer_close(handle);
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int percentage = (volume - min) * 100 / (max - min);
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return percentage;
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}
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void* plug_init(void) {
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p = malloc(sizeof(plug_t));
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assert(p);
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p->name = "Volume";
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p->version = "0.0.1";
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return p;
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}
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void* plug_pre_reload(void) {
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return p;
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}
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void plug_post_reload(void* pp) {
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p = pp;
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}
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void plug_poll(char* buf, size_t len) {
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int volume = get_alsa_volume();
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snprintf(buf, len, "Volume: %d%%", volume);
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}
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void plug_free(void) {}
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