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| author | Charles Kerr <charles.kerr@canonical.com> | 2014-07-07 20:35:17 -0500 |
|---|---|---|
| committer | Charles Kerr <charles.kerr@canonical.com> | 2014-07-07 20:35:17 -0500 |
| commit | 3255261dd7ba9eda3e49ed9b84131c8d93653084 (patch) | |
| tree | 2ae665f28c646a7048d08eec24adfd66a812e1fb /src/snap.cpp | |
| parent | 47e3db9dc8d10d6518554a761418be976413f987 (diff) | |
| download | ayatana-indicator-datetime-3255261dd7ba9eda3e49ed9b84131c8d93653084.tar.gz ayatana-indicator-datetime-3255261dd7ba9eda3e49ed9b84131c8d93653084.tar.bz2 ayatana-indicator-datetime-3255261dd7ba9eda3e49ed9b84131c8d93653084.zip | |
use GStreamer's full volume range.
Diffstat (limited to 'src/snap.cpp')
| -rw-r--r-- | src/snap.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/snap.cpp b/src/snap.cpp index cea09d7..8a86521 100644 --- a/src/snap.cpp +++ b/src/snap.cpp @@ -131,10 +131,17 @@ private: gst_element_set_state (m_play, GST_STATE_PLAYING); } + // convert settings range [1..100] to gst playbin's range is [0...1.0] gdouble get_volume() const { - // input int range is [1..100]; gst playbin's range is [0...1.0] - return CLAMP(m_volume, 1, 100) / 100.0; + constexpr int in_range_lo = 1; + constexpr int in_range_hi = 100; + const double in = CLAMP(m_volume, in_range_lo, in_range_hi); + const double pct = (in - in_range_lo) / (in_range_hi - in_range_lo); + + constexpr double out_range_lo = 0.0; + constexpr double out_range_hi = 1.0; + return out_range_lo + (pct * (out_range_hi - out_range_lo)); } static gboolean bus_callback(GstBus*, GstMessage* msg, gpointer gself) |