// vim:ts=4:sw=4:expandtab
+#include <config.h>
#include <time.h>
#include <string.h>
#include <stdlib.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
-#ifdef LINUX
+#ifdef __linux__
#include <alsa/asoundlib.h>
#include <alloca.h>
+#include <math.h>
#endif
#if defined(__FreeBSD__) || defined(__DragonFly__)
#include "i3status.h"
#include "queue.h"
-static char *apply_volume_format(const char *fmt, char *outwalk, int ivolume) {
+#define ALSA_VOLUME(channel) \
+ err = snd_mixer_selem_get_##channel##_dB_range(elem, &min, &max) || \
+ snd_mixer_selem_get_##channel##_dB(elem, 0, &val); \
+ if (err != 0 || min >= max) { \
+ err = snd_mixer_selem_get_##channel##_volume_range(elem, &min, &max) || \
+ snd_mixer_selem_get_##channel##_volume(elem, 0, &val); \
+ force_linear = true; \
+ }
+
+#define ALSA_MUTE_SWITCH(channel) \
+ if ((err = snd_mixer_selem_get_##channel##_switch(elem, 0, &pbval)) < 0) \
+ fprintf(stderr, "i3status: ALSA: " #channel "_switch: %s\n", snd_strerror(err)); \
+ if (!pbval) { \
+ START_COLOR("color_degraded"); \
+ fmt = fmt_muted; \
+ }
+
+static char *apply_volume_format(const char *fmt, char *outwalk, int ivolume, const char *devicename) {
const char *walk = fmt;
for (; *walk != '\0'; walk++) {
outwalk += sprintf(outwalk, "%d%s", ivolume, pct_mark);
walk += strlen("volume");
+ } else if (BEGINS_WITH(walk + 1, "devicename")) {
+ outwalk += sprintf(outwalk, "%s", devicename);
+ walk += strlen("devicename");
+
} else {
*(outwalk++) = '%';
}
!isdigit(device[strlen("pulse:")])
? device + strlen("pulse:")
: NULL;
- int cvolume = pulse_initialize() ? volume_pulseaudio(sink_idx, sink_name) : 0;
+ int cvolume = 0;
+ char description[MAX_SINK_DESCRIPTION_LEN] = {'\0'};
+
+ if (pulse_initialize()) {
+ cvolume = volume_pulseaudio(sink_idx, sink_name);
+ /* false result means error, stick to empty-string */
+ if (!description_pulseaudio(sink_idx, sink_name, description)) {
+ description[0] = '\0';
+ }
+ }
+
int ivolume = DECOMPOSE_VOLUME(cvolume);
bool muted = DECOMPOSE_MUTED(cvolume);
if (muted) {
START_COLOR("color_degraded");
pbval = 0;
}
+
/* negative result means error, stick to 0 */
if (ivolume < 0)
ivolume = 0;
outwalk = apply_volume_format(muted ? fmt_muted : fmt,
outwalk,
- ivolume);
+ ivolume,
+ description);
goto out;
} else if (!strcasecmp(device, "default") && pulse_initialize()) {
/* no device specified or "default" set */
+ char description[MAX_SINK_DESCRIPTION_LEN];
+ bool success = description_pulseaudio(DEFAULT_SINK_INDEX, NULL, description);
int cvolume = volume_pulseaudio(DEFAULT_SINK_INDEX, NULL);
int ivolume = DECOMPOSE_VOLUME(cvolume);
bool muted = DECOMPOSE_MUTED(cvolume);
- if (ivolume >= 0) {
+ if (ivolume >= 0 && success) {
if (muted) {
START_COLOR("color_degraded");
pbval = 0;
}
outwalk = apply_volume_format(muted ? fmt_muted : fmt,
outwalk,
- ivolume);
+ ivolume,
+ description);
goto out;
}
- /* negative result means error, fail PulseAudio attempt */
+ /* negative result or NULL description means error, fail PulseAudio attempt */
}
/* If some other device was specified or PulseAudio is not detected,
* proceed to ALSA / OSS */
#endif
-#ifdef LINUX
+#ifdef __linux__
+ const long MAX_LINEAR_DB_SCALE = 24;
int err;
snd_mixer_t *m;
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *elem;
long min, max, val;
+ const char *mixer_name;
+ bool force_linear = false;
int avg;
if ((err = snd_mixer_open(&m, 0)) < 0) {
}
/* Get the volume range to convert the volume later */
- snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
-
snd_mixer_handle_events(m);
- snd_mixer_selem_get_playback_volume(elem, 0, &val);
- if (max != 100) {
- float avgf = ((float)val / max) * 100;
+ if (!strncasecmp(mixer, "capture", strlen("capture"))) {
+ ALSA_VOLUME(capture)
+ } else {
+ ALSA_VOLUME(playback)
+ }
+
+ if (err != 0) {
+ fprintf(stderr, "i3status: ALSA: Cannot get playback volume.\n");
+ goto out;
+ }
+
+ mixer_name = snd_mixer_selem_get_name(elem);
+ if (!mixer_name) {
+ fprintf(stderr, "i3status: ALSA: NULL mixer_name.\n");
+ goto out;
+ }
+
+ /* Use linear mapping for raw register values or small ranges of 24 dB */
+ if (force_linear || max - min <= MAX_LINEAR_DB_SCALE * 100) {
+ float avgf = ((float)(val - min) / (max - min)) * 100;
avg = (int)avgf;
avg = (avgf - avg < 0.5 ? avg : (avg + 1));
- } else
- avg = (int)val;
+ } else {
+ /* mapped volume to be more natural for the human ear */
+ double normalized = exp10((val - max) / 6000.0);
+ if (min != SND_CTL_TLV_DB_GAIN_MUTE) {
+ double min_norm = exp10((min - max) / 6000.0);
+ normalized = (normalized - min_norm) / (1 - min_norm);
+ }
+ avg = lround(normalized * 100);
+ }
/* Check for mute */
if (snd_mixer_selem_has_playback_switch(elem)) {
- if ((err = snd_mixer_selem_get_playback_switch(elem, 0, &pbval)) < 0)
- fprintf(stderr, "i3status: ALSA: playback_switch: %s\n", snd_strerror(err));
- if (!pbval) {
- START_COLOR("color_degraded");
- fmt = fmt_muted;
- }
+ ALSA_MUTE_SWITCH(playback)
+ } else if (snd_mixer_selem_has_capture_switch(elem)) {
+ ALSA_MUTE_SWITCH(capture)
}
+ outwalk = apply_volume_format(fmt, outwalk, avg, mixer_name);
+
snd_mixer_close(m);
snd_mixer_selem_id_free(sid);
- outwalk = apply_volume_format(fmt, outwalk, avg);
-
#endif
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
char *mixerpath;
char defaultmixer[] = "/dev/mixer";
int mixfd, vol, devmask = 0;
+ const char *devicename = "UNSUPPORTED"; /* TODO: implement support for this */
pbval = 1;
if (mixer_idx > 0)
}
#endif
- outwalk = apply_volume_format(fmt, outwalk, vol & 0x7f);
+ outwalk = apply_volume_format(fmt, outwalk, vol & 0x7f, devicename);
close(mixfd);
#endif
projects / i3 / i3status / blobdiff