int pa_sink_input_ext_set_volume_limit(struct pa_sink_input *sinp, pa_volume_t limit) { pa_sink *sink; int retval; uint64_t limit64; pa_volume_t value; pa_cvolume *factor; pa_cvolume *real; int changed; int i; pa_assert(sinp); pa_assert_se((sink = sinp->sink)); retval = 0; if (limit == 0) pa_sink_input_set_mute(sinp, TRUE, TRUE); else { pa_sink_input_set_mute(sinp, FALSE, TRUE); if (limit > PA_VOLUME_NORM) limit = PA_VOLUME_NORM; factor = &sinp->volume_factor; real = &sinp->real_ratio; limit64 = (uint64_t)limit * (uint64_t)PA_VOLUME_NORM; changed = FALSE; if (real->channels != factor->channels) { pa_log_debug("channel number mismatch"); retval = -1; } else { for (i = 0; i < factor->channels; i++) { if (limit < real->values[i]) value = limit64 / (uint64_t)real->values[i]; else value = PA_VOLUME_NORM; if (value != factor->values[i]) { changed = 1; factor->values[i] = value; } } if (changed) { if (pa_sink_flat_volume_enabled(sink)) retval = 1; else { pa_sw_cvolume_multiply(&sinp->soft_volume, real, factor); pa_asyncmsgq_send(sink->asyncmsgq, PA_MSGOBJECT(sinp), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL); } } } } return retval; }
int pa_scache_play_item(pa_core *c, const char *name, pa_sink *sink, pa_volume_t volume, pa_proplist *p, uint32_t *sink_input_idx) { pa_scache_entry *e; pa_cvolume r; pa_proplist *merged; pa_bool_t pass_volume; pa_assert(c); pa_assert(name); pa_assert(sink); if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE))) return -1; merged = pa_proplist_new(); pa_proplist_sets(merged, PA_PROP_MEDIA_NAME, name); pa_proplist_sets(merged, PA_PROP_EVENT_ID, name); if (e->lazy && !e->memchunk.memblock) { pa_channel_map old_channel_map = e->channel_map; if (pa_sound_file_load(c->mempool, e->filename, &e->sample_spec, &e->channel_map, &e->memchunk, merged) < 0) goto fail; pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index); if (e->volume_is_set) { if (pa_cvolume_valid(&e->volume)) pa_cvolume_remap(&e->volume, &old_channel_map, &e->channel_map); else pa_cvolume_reset(&e->volume, e->sample_spec.channels); } } if (!e->memchunk.memblock) goto fail; pa_log_debug("Playing sample \"%s\" on \"%s\"", name, sink->name); pass_volume = TRUE; if (e->volume_is_set && volume != PA_VOLUME_INVALID) { pa_cvolume_set(&r, e->sample_spec.channels, volume); pa_sw_cvolume_multiply(&r, &r, &e->volume); } else if (e->volume_is_set) r = e->volume; else if (volume != PA_VOLUME_INVALID) pa_cvolume_set(&r, e->sample_spec.channels, volume); else pass_volume = FALSE; pa_proplist_update(merged, PA_UPDATE_REPLACE, e->proplist); if (p) pa_proplist_update(merged, PA_UPDATE_REPLACE, p); if (pa_play_memchunk(sink, &e->sample_spec, &e->channel_map, &e->memchunk, pass_volume ? &r : NULL, merged, PA_SINK_INPUT_NO_CREATE_ON_SUSPEND|PA_SINK_INPUT_KILL_ON_SUSPEND, sink_input_idx) < 0) goto fail; pa_proplist_free(merged); if (e->lazy) time(&e->last_used_time); return 0; fail: pa_proplist_free(merged); return -1; }