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output/PipeWire: ignore SPA_PROP_channelVolumes if n_values==0

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After connecting, PipeWire sometimes sends SPA_PROP_channelVolumes
with no values, and this led to "volume=-NaN".
This commit is contained in:
Max Kellermann 2022-07-08 18:11:00 +02:00
parent f08944253b
commit e807ed5870
1 changed files with 3 additions and 0 deletions
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3
src/output/plugins/PipeWireOutputPlugin.cxx
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@ -223,6 +223,9 @@ private:
} }
void OnChannelVolumes(const struct pw_stream_control &control) noexcept { void OnChannelVolumes(const struct pw_stream_control &control) noexcept {
if (control.n_values < 1)
return;
float sum = std::accumulate(control.values, float sum = std::accumulate(control.values,
control.values + control.n_values, control.values + control.n_values,
0.0f); 0.0f);