X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fprint_volume.c;h=91e8ce28bc68839dc42b012b06faa5a372e21cc8;hb=a57cdc84e2f38ea99fd464d8b5b6446c769cc545;hp=ef1c913212b5eda50f96d33fb704649555996b0b;hpb=d74e904bf4bdd7f1d767a8db09987b90de809579;p=i3%2Fi3status diff --git a/src/print_volume.c b/src/print_volume.c index ef1c913..91e8ce2 100644 --- a/src/print_volume.c +++ b/src/print_volume.c @@ -1,14 +1,18 @@ // vim:ts=4:sw=4:expandtab +#include #include #include #include #include +#include +#include #include #include -#ifdef LINUX +#ifdef __linux__ #include #include +#include #endif #if defined(__FreeBSD__) || defined(__DragonFly__) @@ -20,29 +24,139 @@ #ifdef __OpenBSD__ #include #include -#include +#include +#include #endif #include "i3status.h" #include "queue.h" +#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++) { + if (*walk != '%') { + *(outwalk++) = *walk; + + } else if (BEGINS_WITH(walk + 1, "%")) { + outwalk += sprintf(outwalk, "%s", pct_mark); + walk += strlen("%"); + + } else if (BEGINS_WITH(walk + 1, "volume")) { + 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++) = '%'; + } + } + return outwalk; +} + 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) { char *outwalk = buffer; int pbval = 1; - /* Printing volume only works with ALSA at the moment */ + /* Printing volume works with ALSA and PulseAudio at the moment */ if (output_format == O_I3BAR) { char *instance; asprintf(&instance, "%s.%s.%d", device, mixer, mixer_idx); INSTANCE(instance); free(instance); } -#ifdef LINUX + +#if !defined(__DragonFly__) && !defined(__OpenBSD__) + /* Try PulseAudio first */ + + /* If the device name has the format "pulse[:N]" where N is the + * index of the PulseAudio sink then force PulseAudio, optionally + * overriding the default sink */ + if (!strncasecmp(device, "pulse", strlen("pulse"))) { + 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 = 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, + 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 && success) { + if (muted) { + START_COLOR("color_degraded"); + pbval = 0; + } + outwalk = apply_volume_format(muted ? fmt_muted : fmt, + outwalk, + ivolume, + description); + goto out; + } + /* 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__ + 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) { @@ -80,7 +194,7 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char * snd_mixer_selem_id_set_index(sid, mixer_idx); snd_mixer_selem_id_set_name(sid, mixer); if (!(elem = snd_mixer_find_selem(m, sid))) { - fprintf(stderr, "i3status: ALSA: Cannot find mixer %s (index %i)\n", + fprintf(stderr, "i3status: ALSA: Cannot find mixer %s (index %u)\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid)); snd_mixer_close(m); snd_mixer_selem_id_free(sid); @@ -88,50 +202,57 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char * } /* 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); - const char *walk = fmt; - for (; *walk != '\0'; walk++) { - if (*walk != '%') { - *(outwalk++) = *walk; - continue; - } - if (BEGINS_WITH(walk + 1, "%")) { - outwalk += sprintf(outwalk, "%%"); - walk += strlen("%"); - } - if (BEGINS_WITH(walk + 1, "volume")) { - outwalk += sprintf(outwalk, "%d%%", avg); - walk += strlen("volume"); - } - } #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) @@ -139,37 +260,101 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char * else mixerpath = defaultmixer; - if ((mixfd = open(mixerpath, O_RDWR)) < 0) - return; + if ((mixfd = open(mixerpath, O_RDWR)) < 0) { +#if defined(__OpenBSD__) + warn("audioio: Cannot open mixer"); +#else + warn("OSS: Cannot open mixer"); +#endif + goto out; + } if (mixer_idx > 0) free(mixerpath); - if (ioctl(mixfd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) - return; - if (ioctl(mixfd, MIXER_READ(0), &vol) == -1) - return; +#if defined(__OpenBSD__) + int oclass_idx = -1, master_idx = -1, master_mute_idx = -1; + int master_next = AUDIO_MIXER_LAST; + mixer_devinfo_t devinfo, devinfo2; + mixer_ctrl_t vinfo; - if (((vol & 0x7f) == 0) && (((vol >> 8) & 0x7f) == 0)) { + devinfo.index = 0; + while (ioctl(mixfd, AUDIO_MIXER_DEVINFO, &devinfo) >= 0) { + if (devinfo.type != AUDIO_MIXER_CLASS) { + devinfo.index++; + continue; + } + if (strncmp(devinfo.label.name, AudioCoutputs, MAX_AUDIO_DEV_LEN) == 0) + oclass_idx = devinfo.index; + + devinfo.index++; + } + + devinfo2.index = 0; + while (ioctl(mixfd, AUDIO_MIXER_DEVINFO, &devinfo2) >= 0) { + if ((devinfo2.type == AUDIO_MIXER_VALUE) && (devinfo2.mixer_class == oclass_idx) && (strncmp(devinfo2.label.name, AudioNmaster, MAX_AUDIO_DEV_LEN) == 0)) { + master_idx = devinfo2.index; + master_next = devinfo2.next; + } + + if ((devinfo2.type == AUDIO_MIXER_ENUM) && (devinfo2.mixer_class == oclass_idx) && (strncmp(devinfo2.label.name, AudioNmute, MAX_AUDIO_DEV_LEN) == 0)) + if (master_next == devinfo2.index) + master_mute_idx = devinfo2.index; + + if (master_next != AUDIO_MIXER_LAST) + master_next = devinfo2.next; + devinfo2.index++; + } + + if (master_idx == -1) + goto out; + + devinfo.index = master_idx; + if (ioctl(mixfd, AUDIO_MIXER_DEVINFO, &devinfo) == -1) + goto out; + + vinfo.dev = master_idx; + vinfo.type = AUDIO_MIXER_VALUE; + vinfo.un.value.num_channels = devinfo.un.v.num_channels; + if (ioctl(mixfd, AUDIO_MIXER_READ, &vinfo) == -1) + goto out; + + if (AUDIO_MAX_GAIN != 100) { + float avgf = ((float)vinfo.un.value.level[AUDIO_MIXER_LEVEL_MONO] / AUDIO_MAX_GAIN) * 100; + vol = (int)avgf; + vol = (avgf - vol < 0.5 ? vol : (vol + 1)); + } else { + vol = (int)vinfo.un.value.level[AUDIO_MIXER_LEVEL_MONO]; + } + + vinfo.dev = master_mute_idx; + vinfo.type = AUDIO_MIXER_ENUM; + if (ioctl(mixfd, AUDIO_MIXER_READ, &vinfo) == -1) + goto out; + + if (master_mute_idx != -1 && vinfo.un.ord) { START_COLOR("color_degraded"); + fmt = fmt_muted; pbval = 0; } - const char *walk = fmt; - for (; *walk != '\0'; walk++) { - if (*walk != '%') { - *(outwalk++) = *walk; - continue; - } - if (BEGINS_WITH(walk + 1, "%")) { - outwalk += sprintf(outwalk, "%%"); - walk += strlen("%"); - } - if (BEGINS_WITH(walk + 1, "volume")) { - outwalk += sprintf(outwalk, "%d%%", vol & 0x7f); - walk += strlen("volume"); - } +#else + if (ioctl(mixfd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) { + warn("OSS: Cannot read mixer information"); + goto out; + } + if (ioctl(mixfd, MIXER_READ(0), &vol) == -1) { + warn("OSS: Cannot read mixer information"); + goto out; + } + + if (((vol & 0x7f) == 0) && (((vol >> 8) & 0x7f) == 0)) { + START_COLOR("color_degraded"); + pbval = 0; } + +#endif + outwalk = apply_volume_format(fmt, outwalk, vol & 0x7f, devicename); close(mixfd); #endif