i->volume_factor = data->volume_factor;
pa_cvolume_init(&i->soft_volume);
+ memset(i->relative_volume, 0, sizeof(i->relative_volume));
i->save_volume = data->save_volume;
i->save_sink = data->save_sink;
i->save_muted = data->save_muted;
pa_sink_update_flat_volume(i->sink, &new_volume);
pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
} else
- pa_sw_cvolume_multiply(&i->soft_volume, &i->virtual_volume, &i->volume_factor);
+ pa_sink_input_set_relative_volume(i, &i->virtual_volume);
i->thread_info.soft_volume = i->soft_volume;
i->thread_info.muted = i->muted;
/* OK, we are in normal volume mode. The volume only affects
* ourselves */
- pa_sw_cvolume_multiply(&i->soft_volume, volume, &i->volume_factor);
+ pa_sink_input_set_relative_volume(i, volume);
/* Hooks have the ability to play games with i->soft_volume */
pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], i);
+ /* Copy the new soft_volume to the thread_info struct */
pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
}
/* Called from main context */
pa_cvolume *pa_sink_input_get_relative_volume(pa_sink_input *i, pa_cvolume *v) {
+ unsigned c;
+
pa_sink_input_assert_ref(i);
pa_assert(v);
pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
- *v = i->virtual_volume;
-
/* This always returns a relative volume, even in flat volume mode */
- if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
- pa_cvolume sv;
+ v->channels = i->sample_spec.channels;
+
+ for (c = 0; c < v->channels; c++)
+ v->values[c] = pa_sw_volume_from_linear(i->relative_volume[c]);
+
+ return v;
+}
+
+/* Called from main context */
+void pa_sink_input_set_relative_volume(pa_sink_input *i, const pa_cvolume *v) {
+ unsigned c;
+ pa_cvolume _v;
- sv = *pa_sink_get_volume(i->sink, FALSE);
+ pa_sink_input_assert_ref(i);
+ pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+ pa_assert(!v || pa_cvolume_compatible(v, &i->sample_spec));
+
+ if (!v)
+ v = pa_cvolume_reset(&_v, i->sample_spec.channels);
+
+ /* This basically calculates:
+ *
+ * i->relative_volume := v
+ * i->soft_volume := i->relative_volume * i->volume_factor */
- pa_sw_cvolume_divide(v, v,
- pa_cvolume_remap(&sv, &i->sink->channel_map, &i->channel_map));
+ i->soft_volume.channels = i->sample_spec.channels;
+
+ for (c = 0; c < i->sample_spec.channels; c++) {
+ i->relative_volume[c] = pa_sw_volume_to_linear(v->values[c]);
+
+ i->soft_volume.values[c] = pa_sw_volume_from_linear(
+ i->relative_volume[c] *
+ pa_sw_volume_to_linear(i->volume_factor.values[c]));
}
- return v;
+ /* We don't copy the data to the thread_info data. That's left for someone else to do */
}
/* Called from main context */
if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
pa_cvolume new_volume;
- /* Make the absolute volume relative */
- i->virtual_volume = i->soft_volume;
- i->soft_volume = i->volume_factor;
+ /* Make the virtual volume relative */
+ pa_sink_input_get_relative_volume(i, &i->virtual_volume);
+
+ /* And reset the the relative volume */
+ pa_sink_input_set_relative_volume(i, NULL);
/* We might need to update the sink's volume if we are in flat
* volume mode. */
pa_sink_input *sync_prev, *sync_next;
- pa_cvolume virtual_volume, soft_volume, volume_factor;
+ pa_cvolume virtual_volume; /* The volume clients are informed about */
+ pa_cvolume volume_factor; /* An internally used volume factor that can be used by modules to apply effects and suchlike without having that visible to the outside */
+ double relative_volume[PA_CHANNELS_MAX]; /* The calculated volume relative to the sink volume as linear factors. */
+ pa_cvolume soft_volume; /* The internal software volume we apply to all PCM data while it passes through. Usually calculated as relative_volume * volume_factor */
pa_bool_t muted:1;
/* if TRUE then the source we are connected to and/or the volume
pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret);
+/* To be used by sink.c only */
+void pa_sink_input_set_relative_volume(pa_sink_input *i, const pa_cvolume *v);
+
#endif
pa_sink_input_assert_ref(i);
pa_assert(new_volume->channels == i->sample_spec.channels);
- /* This basically calculates i->soft_volume := i->virtual_volume / new_volume * i->volume_factor */
+ /*
+ * This basically calculates:
+ *
+ * i->relative_volume := i->virtual_volume / new_volume
+ * i->soft_volume := i->relative_volume * i->volume_factor
+ */
/* The new sink volume passed in here must already be remapped to
* the sink input's channel map! */
+ i->soft_volume.channels = i->sample_spec.channels;
+
for (c = 0; c < i->sample_spec.channels; c++)
if (new_volume->values[c] <= PA_VOLUME_MUTED)
+ /* We leave i->relative_volume untouched */
i->soft_volume.values[c] = PA_VOLUME_MUTED;
- else
- i->soft_volume.values[c] = pa_sw_volume_from_linear(
- pa_sw_volume_to_linear(i->virtual_volume.values[c]) *
- pa_sw_volume_to_linear(i->volume_factor.values[c]) /
- pa_sw_volume_to_linear(new_volume->values[c]));
+ else {
+ i->relative_volume[c] =
+ pa_sw_volume_to_linear(i->virtual_volume.values[c]) /
+ pa_sw_volume_to_linear(new_volume->values[c]);
- i->soft_volume.channels = i->sample_spec.channels;
+ i->soft_volume.values[c] = pa_sw_volume_from_linear(
+ i->relative_volume[c] *
+ pa_sw_volume_to_linear(i->volume_factor.values[c]));
+ }
/* Hooks have the ability to play games with i->soft_volume */
pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], i);
}
/* Called from main thread */
-void pa_sink_propagate_flat_volume(pa_sink *s, const pa_cvolume *old_volume) {
+void pa_sink_propagate_flat_volume(pa_sink *s) {
pa_sink_input *i;
uint32_t idx;
pa_sink_assert_ref(s);
- pa_assert(old_volume);
pa_assert(PA_SINK_IS_LINKED(s->state));
pa_assert(s->flags & PA_SINK_FLAT_VOLUME);
* sink input volumes accordingly */
for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
- pa_cvolume remapped_old_volume, remapped_new_volume, new_virtual_volume;
+ pa_cvolume sink_volume, new_virtual_volume;
unsigned c;
- /* This basically calculates i->virtual_volume := i->virtual_volume * s->virtual_volume / old_volume */
-
- remapped_new_volume = s->virtual_volume;
- pa_cvolume_remap(&remapped_new_volume, &s->channel_map, &i->channel_map);
+ /* This basically calculates i->virtual_volume := i->relative_volume * s->virtual_volume */
- remapped_old_volume = *old_volume;
- pa_cvolume_remap(&remapped_old_volume, &s->channel_map, &i->channel_map);
+ sink_volume = s->virtual_volume;
+ pa_cvolume_remap(&sink_volume, &s->channel_map, &i->channel_map);
for (c = 0; c < i->sample_spec.channels; c++)
-
- if (remapped_old_volume.values[c] <= PA_VOLUME_MUTED)
- new_virtual_volume.values[c] = remapped_new_volume.values[c];
- else
- new_virtual_volume.values[c] = pa_sw_volume_from_linear(
- pa_sw_volume_to_linear(i->virtual_volume.values[c]) *
- pa_sw_volume_to_linear(remapped_new_volume.values[c]) /
- pa_sw_volume_to_linear(remapped_old_volume.values[c]));
+ new_virtual_volume.values[c] = pa_sw_volume_from_linear(
+ i->relative_volume[c] *
+ pa_sw_volume_to_linear(sink_volume.values[c]));
new_virtual_volume.channels = i->sample_spec.channels;
* especially when the old volume was
* PA_VOLUME_MUTED. Hence let's recalculate the soft
* volumes here. */
- compute_new_soft_volume(i, &remapped_new_volume);
+ compute_new_soft_volume(i, &sink_volume);
/* The virtual volume changed, let's tell people so */
pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
/* Called from main thread */
void pa_sink_set_volume(pa_sink *s, const pa_cvolume *volume, pa_bool_t propagate, pa_bool_t sendmsg) {
- pa_cvolume old_virtual_volume;
pa_bool_t virtual_volume_changed;
pa_sink_assert_ref(s);
pa_assert(pa_cvolume_valid(volume));
pa_assert(pa_cvolume_compatible(volume, &s->sample_spec));
- old_virtual_volume = s->virtual_volume;
+ virtual_volume_changed = !pa_cvolume_equal(volume, &s->virtual_volume);
s->virtual_volume = *volume;
- virtual_volume_changed = !pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume);
/* Propagate this volume change back to the inputs */
if (virtual_volume_changed)
if (propagate && (s->flags & PA_SINK_FLAT_VOLUME))
- pa_sink_propagate_flat_volume(s, &old_virtual_volume);
+ pa_sink_propagate_flat_volume(s);
if (s->set_volume) {
/* If we have a function set_volume(), then we do not apply a
if (!pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume)) {
if (s->flags & PA_SINK_FLAT_VOLUME)
- pa_sink_propagate_flat_volume(s, &old_virtual_volume);
+ pa_sink_propagate_flat_volume(s);
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
}
pa_volume_t base_volume; /* shall be constant */
unsigned n_volume_steps; /* shall be constant */
- pa_cvolume virtual_volume, soft_volume;
+ pa_cvolume virtual_volume; /* The volume clients are informed about */
+ pa_cvolume soft_volume; /* The internal software volume we apply to all PCM data while it passes through */
pa_bool_t muted:1;
pa_bool_t refresh_volume:1;
int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend);
void pa_sink_update_flat_volume(pa_sink *s, pa_cvolume *new_volume);
-void pa_sink_propagate_flat_volume(pa_sink *s, const pa_cvolume *old_volume);
+void pa_sink_propagate_flat_volume(pa_sink *s);
void pa_sink_set_volume(pa_sink *sink, const pa_cvolume *volume, pa_bool_t propagate, pa_bool_t sendmsg);
const pa_cvolume *pa_sink_get_volume(pa_sink *sink, pa_bool_t force_refresh);