diff options
| -rw-r--r-- | pulsemix.c | 51 |
1 files changed, 51 insertions, 0 deletions
@@ -57,6 +57,8 @@ enum action { ACTION_LIST, ACTION_GETVOL, ACTION_SETVOL, + ACTION_GETBAL, + ACTION_SETBAL, ACTION_INCREASE, ACTION_DECREASE, ACTION_MUTE, @@ -79,7 +81,9 @@ struct io_t { char *desc; const char *pp_name; pa_cvolume volume; + pa_channel_map channels; int volume_percent; + int balance; int mute; pa_operation *(*fn_mute)(pa_context *, uint32_t, int, pa_context_success_cb_t, void *); @@ -118,6 +122,8 @@ static void populate(struct io_t *node) { node->volume_percent = (int)(((double)pa_cvolume_avg(&node->volume) * 100) / PA_VOLUME_NORM); + node->balance = (int)((double)pa_cvolume_get_balance(&node->volume, + &node->channels) * 100); } static struct io_t *sink_new(const pa_sink_info *info) @@ -130,6 +136,7 @@ static struct io_t *sink_new(const pa_sink_info *info) sink->desc = strdup(info->description); sink->pp_name = "sink"; memcpy(&sink->volume, &info->volume, sizeof(pa_cvolume)); + memcpy(&sink->channels, &info->channel_map, sizeof(pa_channel_map)); sink->mute = info->mute; sink->fn_mute = pa_context_set_sink_mute_by_index; @@ -150,6 +157,7 @@ static struct io_t *source_new(const pa_source_info *info) source->desc = strdup(info->description); source->pp_name = "source"; memcpy(&source->volume, &info->volume, sizeof(pa_cvolume)); + memcpy(&source->channels, &info->channel_map, sizeof(pa_channel_map)); source->mute = info->mute; source->fn_mute = pa_context_set_source_mute_by_index; @@ -259,6 +267,35 @@ static int set_volume(struct pulseaudio_t *pulse, struct io_t *dev, long v) return !pulse->success; } +static void get_balance(struct pulseaudio_t *pulse) +{ + printf("%d\n", pulse->head->balance); +} + +static int set_balance(struct pulseaudio_t *pulse, struct io_t *dev, long v) +{ + pa_cvolume *vol; + pa_operation *op; + + if (pa_channel_map_valid(&dev->channels) == 0) + errx(EXIT_FAILURE, "can't set balance on that device."); + + vol = pa_cvolume_set_balance(&dev->volume, &dev->channels, v / 100.0); + op = dev->fn_setvol(pulse->cxt, dev->idx, vol, success_cb, pulse); + pulse_async_wait(pulse, op); + + if (pulse->success) + printf("%ld\n", v); + else { + int err = pa_context_errno(pulse->cxt); + errx(EXIT_FAILURE, "failed to set balance: %s", pa_strerror(err)); + } + + pa_operation_unref(op); + + return !pulse->success; +} + static int set_mute(struct pulseaudio_t *pulse, struct io_t *dev, int mute) { pa_operation* op = pulse->head->fn_mute(pulse->cxt, dev->idx, mute, @@ -433,6 +470,8 @@ void usage(FILE *out) fputs(" list list available sinks\n", out); fputs(" get-volume get volume for sink\n", out); fputs(" set-volume VALUE set volume for sink\n", out); + fputs(" get-balance get balance for sink\n", out); + fputs(" set-balance VALUE set balance for sink\n", out); fputs(" increase VALUE increase volume\n", out); fputs(" decrease VALUE decrease volume\n", out); fputs(" mute mute active sink\n", out); @@ -454,6 +493,10 @@ enum action string_to_verb(const char *string) return ACTION_GETVOL; else if (strcmp(string, "set-volume") == 0) return ACTION_SETVOL; + else if (strcmp(string, "get-balance") == 0) + return ACTION_GETBAL; + else if (strcmp(string, "set-balance") == 0) + return ACTION_SETBAL; else if (strcmp(string, "increase") == 0) return ACTION_INCREASE; else if (strcmp(string, "decrease") == 0) @@ -523,6 +566,7 @@ int main(int argc, char *argv[]) optind++; if (verb == ACTION_SETVOL || + verb == ACTION_SETBAL || verb == ACTION_INCREASE || verb == ACTION_DECREASE) if (optind == argc) @@ -570,6 +614,13 @@ int main(int argc, char *argv[]) case ACTION_SETVOL: rc = set_volume(&pulse, pulse.head, value); break; + case ACTION_GETBAL: + get_balance(&pulse); + break; + case ACTION_SETBAL: + rc = set_balance(&pulse, pulse.head, + CLAMP(value, -100, 100)); + break; case ACTION_INCREASE: rc = set_volume(&pulse, pulse.head, CLAMP(pulse.head->volume_percent + value, 0, 150)); |