oysteikt/mpd
0
0
Fork 0
Code Issues Pull Requests Releases Activity

mixer/alsa: move code to GetNormalizedVolume()

Browse Source
This commit is contained in:
Max Kellermann 2021-08-06 17:53:24 +02:00
parent b0e9538855
commit ad6e303047
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/mixer/plugins/AlsaMixerPlugin.cxx
View File

@ -95,6 +95,13 @@ public:
void Close() noexcept override; void Close() noexcept override;
int GetVolume() override; int GetVolume() override;
void SetVolume(unsigned volume) override; void SetVolume(unsigned volume) override;
private:
[[gnu::pure]]
double GetNormalizedVolume() const noexcept {
return get_normalized_playback_volume(elem,
SND_MIXER_SCHN_FRONT_LEFT);
}
}; };
static constexpr Domain alsa_mixer_domain("alsa_mixer"); static constexpr Domain alsa_mixer_domain("alsa_mixer");
@ -273,7 +280,7 @@ AlsaMixer::GetVolume()
throw FormatRuntimeError("snd_mixer_handle_events() failed: %s", throw FormatRuntimeError("snd_mixer_handle_events() failed: %s",
snd_strerror(err)); snd_strerror(err));
return lround(100 * get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT)); return lround(100 * GetNormalizedVolume());
} }
void void
@ -281,7 +288,7 @@ AlsaMixer::SetVolume(unsigned volume)
{ {
assert(handle != nullptr); assert(handle != nullptr);
double cur = get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT); double cur = GetNormalizedVolume();
int delta = volume - lround(100.*cur); int delta = volume - lround(100.*cur);
int err = set_normalized_playback_volume(elem, cur + 0.01*delta, delta); int err = set_normalized_playback_volume(elem, cur + 0.01*delta, delta);
if (err < 0) if (err < 0)