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pulse device may be specified by name (#126) (#162)

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Watcom 2016-09-14 04:26:45 -03:00 committed by Michael Stapelberg
parent 48e10658b4
commit 8d2ef5f99b
4 changed files with 75 additions and 31 deletions
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2
include/i3status.h
View File

@ -217,7 +217,7 @@ void print_eth_info(yajl_gen json_gen, char *buffer, const char *interface, cons
void print_load(yajl_gen json_gen, char *buffer, const char *format, const float max_threshold);
void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *fmt_muted, const char *device, const char *mixer, int mixer_idx);
bool process_runs(const char *path);
int volume_pulseaudio(uint32_t sink_idx);
int volume_pulseaudio(uint32_t sink_idx, const char *sink_name);
bool pulse_initialize(void);
/* socket file descriptor for general purposes */

21
man/i3status.man
View File

@ -487,10 +487,16 @@ or
device = "pulse:N"
where N is the index of the PulseAudio sink. If no sink is specified the
default is used. If the device string is missing or is set to "default",
PulseAudio will be tried if detected and will fallback to ALSA (Linux)
or OSS (FreeBSD/OpenBSD).
where N is the index or name of the PulseAudio sink. You can obtain the name of
the sink with the following command:
$ pacmd list-sinks | grep name:
name: <alsa_output.pci-0000_00_14.2.analog-stereo>
The name is what's inside the angle brackets, not including them. If no sink is
specified the default sink is used. If the device string is missing or is set
to "default", PulseAudio will be tried if detected and will fallback to ALSA
(Linux) or OSS (FreeBSD/OpenBSD).
*Example order*: +volume master+
@ -516,6 +522,13 @@ volume master {
device = "pulse:1"
}
-------------------------------------------------------------
-------------------------------------------------------------
volume master {
format = "♪: %volume"
format_muted = "♪: muted (%volume)"
device = "pulse:alsa_output.pci-0000_00_14.2.analog-stereo"
}
-------------------------------------------------------------
== Universal module options

12
src/print_volume.c
View File

@ -4,6 +4,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <ctype.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
@ -67,9 +68,12 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *
* index of the PulseAudio sink then force PulseAudio, optionally
* overriding the default sink */
if (!strncasecmp(device, "pulse", strlen("pulse"))) {
uint32_t sink_idx = device[5] == ':' ? (uint32_t)atoi(device + 6)
: DEFAULT_SINK_INDEX;
int cvolume = pulse_initialize() ? volume_pulseaudio(sink_idx) : 0;
uint32_t sink_idx = device[strlen("pulse")] == ':' ? (uint32_t)atoi(device + strlen("pulse:")) : DEFAULT_SINK_INDEX;
const char *sink_name = device[strlen("pulse")] == ':' &&
!isdigit(device[strlen("pulse:")])
? device + strlen("pulse:")
: NULL;
int cvolume = pulse_initialize() ? volume_pulseaudio(sink_idx, sink_name) : 0;
int ivolume = DECOMPOSE_VOLUME(cvolume);
bool muted = DECOMPOSE_MUTED(cvolume);
if (muted) {
@ -85,7 +89,7 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *
goto out;
} else if (!strcasecmp(device, "default") && pulse_initialize()) {
/* no device specified or "default" set */
int cvolume = volume_pulseaudio(DEFAULT_SINK_INDEX);
int cvolume = volume_pulseaudio(DEFAULT_SINK_INDEX, NULL);
int ivolume = DECOMPOSE_VOLUME(cvolume);
bool muted = DECOMPOSE_MUTED(cvolume);
if (ivolume >= 0) {

57
src/pulse.c
View File

@ -11,6 +11,7 @@
#define APP_ID "org.i3wm"
typedef struct indexed_volume_s {
char *name;
uint32_t idx;
int volume;
TAILQ_ENTRY(indexed_volume_s) entries;
@ -45,22 +46,35 @@ static bool pulseaudio_free_operation(pa_context *c, pa_operation *o) {
* save the volume for the specified sink index
* returning true if the value was changed
*/
static bool save_volume(uint32_t sink_idx, int new_volume) {
static bool save_volume(uint32_t sink_idx, int new_volume, const char *name) {
pthread_mutex_lock(&pulse_mutex);
indexed_volume_t *entry;
TAILQ_FOREACH(entry, &cached_volume, entries) {
if (entry->idx == sink_idx) {
if (name) {
if (!entry->name || strcmp(entry->name, name)) {
continue;
}
} else {
if (entry->idx != sink_idx) {
continue;
}
}
const bool changed = (new_volume != entry->volume);
entry->volume = new_volume;
pthread_mutex_unlock(&pulse_mutex);
return changed;
}
}
/* index not found, store it */
entry = malloc(sizeof(*entry));
TAILQ_INSERT_HEAD(&cached_volume, entry, entries);
entry->idx = sink_idx;
entry->volume = new_volume;
if (name) {
entry->name = malloc(strlen(name) + 1);
strcpy(entry->name, name);
} else {
entry->name = NULL;
}
pthread_mutex_unlock(&pulse_mutex);
return true;
}
@ -88,20 +102,26 @@ static void store_volume_from_sink_cb(pa_context *c,
* DEFAULT_SINK_INDEX as the index, and another with its proper value
* (using bitwise OR to avoid early-out logic) */
if ((info->index == default_sink_idx &&
save_volume(DEFAULT_SINK_INDEX, composed_volume)) |
save_volume(info->index, composed_volume)) {
save_volume(DEFAULT_SINK_INDEX, composed_volume, NULL)) |
save_volume(info->index, composed_volume, info->name)) {
/* if the volume or mute flag changed, wake the main thread */
pthread_kill(main_thread, SIGUSR1);
}
}
static void get_sink_info(pa_context *c, uint32_t idx) {
pa_operation *o =
idx == DEFAULT_SINK_INDEX ? pa_context_get_sink_info_by_name(
c, "@DEFAULT_SINK@", store_volume_from_sink_cb, NULL)
: pa_context_get_sink_info_by_index(
static void get_sink_info(pa_context *c, uint32_t idx, const char *name) {
pa_operation *o;
if (name || idx == DEFAULT_SINK_INDEX) {
o = pa_context_get_sink_info_by_name(
c, name ? name : "@DEFAULT_SINK@", store_volume_from_sink_cb, NULL);
} else {
o = pa_context_get_sink_info_by_index(
c, idx, store_volume_from_sink_cb, NULL);
}
if (o) {
pulseaudio_free_operation(c, o);
}
}
static void store_default_sink_cb(pa_context *c,
@ -138,7 +158,7 @@ static void subscribe_cb(pa_context *c, pa_subscription_event_type_t t,
update_default_sink(c);
break;
case PA_SUBSCRIPTION_EVENT_SINK:
get_sink_info(c, idx);
get_sink_info(c, idx, NULL);
break;
default:
break;
@ -183,25 +203,32 @@ static void context_state_callback(pa_context *c, void *userdata) {
* returns the current volume in percent, which, as per PulseAudio,
* may be > 100%
*/
int volume_pulseaudio(uint32_t sink_idx) {
int volume_pulseaudio(uint32_t sink_idx, const char *sink_name) {
if (!context_ready || default_sink_idx == DEFAULT_SINK_INDEX)
return -1;
pthread_mutex_lock(&pulse_mutex);
const indexed_volume_t *entry;
TAILQ_FOREACH(entry, &cached_volume, entries) {
if (entry->idx == sink_idx) {
if (sink_name) {
if (!entry->name || strcmp(entry->name, sink_name)) {
continue;
}
} else {
if (entry->idx != sink_idx) {
continue;
}
}
int vol = entry->volume;
pthread_mutex_unlock(&pulse_mutex);
return vol;
}
}
pthread_mutex_unlock(&pulse_mutex);
/* first time requires a prime callback call because we only get
* updates when the volume actually changes, but we need it to
* be correct even if it never changes */
pa_threaded_mainloop_lock(main_loop);
get_sink_info(context, sink_idx);
get_sink_info(context, sink_idx, sink_name);
pa_threaded_mainloop_unlock(main_loop);
/* show 0 while we don't have this information */
return 0;