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we need to make our multiplications with linear values

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This commit is contained in:
Lennart Poettering 2009-04-07 04:05:03 +02:00
parent 02686cce6d
commit 93e14d3e62
1 changed files with 10 additions and 10 deletions
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20
src/pulsecore/sink.c
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@ -1071,7 +1071,7 @@ void pa_sink_propagate_flat_volume(pa_sink *s, const pa_cvolume *old_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, fixed_volume;
pa_cvolume remapped_old_volume, remapped_new_volume, new_virtual_volume;
unsigned c;
/* This basically calculates i->virtual_volume := i->virtual_volume * s->virtual_volume / old_volume */
@ -1084,18 +1084,18 @@ void pa_sink_propagate_flat_volume(pa_sink *s, const pa_cvolume *old_volume) {
for (c = 0; c < i->sample_spec.channels; c++)
if (remapped_old_volume.values[c] == PA_VOLUME_MUTED)
fixed_volume.values[c] = remapped_new_volume.values[c];
if (remapped_old_volume.values[c] <= PA_VOLUME_MUTED)
new_virtual_volume.values[c] = remapped_new_volume.values[c];
else
fixed_volume.values[c] = (pa_volume_t)
((uint64_t) i->virtual_volume.values[c] *
(uint64_t) remapped_new_volume.values[c] /
(uint64_t) remapped_old_volume.values[c]);
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]));
fixed_volume.channels = i->virtual_volume.channels;
new_virtual_volume.channels = i->sample_spec.channels;
if (!pa_cvolume_equal(&fixed_volume, &i->virtual_volume)) {
i->virtual_volume = fixed_volume;
if (!pa_cvolume_equal(&new_virtual_volume, &i->virtual_volume)) {
i->virtual_volume = new_virtual_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);