aout: Increase/decrease volume in steps of 5%

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

modules/gui/qt4/components/controller_widget.cpp

@@ -88,7 +88,7 @@ SoundWidget::SoundWidget( QWidget *_parent, intf_thread_t * _p_intf,
     if( b_shiny )
     {
         volumeSlider = new SoundSlider( this,
-            config_GetInt( p_intf, "volume-step" ),
+            config_GetFloat( p_intf, "volume-step" ),
             var_InheritString( p_intf, "qt-slider-colours" ),
             var_InheritInteger( p_intf, "qt-max-volume") );
     }

modules/gui/qt4/util/input_slider.cpp

@@ -441,7 +441,7 @@ bool SeekSlider::isAnimationRunning() const
 #define WHEIGHT   22  // px
 #define SOUNDMIN  0   // %
 
-SoundSlider::SoundSlider( QWidget *_parent, int _i_step,
+SoundSlider::SoundSlider( QWidget *_parent, float _i_step,
                           char *psz_colors, int max )
                         : QAbstractSlider( _parent )
 {

modules/gui/qt4/util/input_slider.hpp

@@ -130,7 +130,7 @@ class SoundSlider : public QAbstractSlider
 {
     Q_OBJECT
 public:
-    SoundSlider(QWidget *_parent, int _i_step, char *psz_colors, int max = SOUNDMAX );
+    SoundSlider(QWidget *_parent, float _i_step, char *psz_colors, int max = SOUNDMAX );
     void setMuted( bool ); /* Set Mute status */
 
 protected:

modules/gui/skins2/vars/volume.cpp

@@ -35,7 +35,7 @@
 Volume::Volume( intf_thread_t *pIntf ): VarPercent( pIntf )
 {
     // compute preferred step in [0.,1.] range
-    m_step = (float)config_GetInt( pIntf, "volume-step" )
+    m_step = config_GetFloat( pIntf, "volume-step" )
              / (float)AOUT_VOLUME_MAX;
 
     // set current volume from the playlist

src/libvlc-module.c

@@ -142,7 +142,7 @@ static const char *const ppsz_snap_formats[] =
 #define VOLUME_STEP_TEXT N_("Audio output volume step")
 #define VOLUME_STEP_LONGTEXT N_( \
     "The step size of the volume is adjustable using this option.")
-#define AOUT_VOLUME_STEP 13
+#define AOUT_VOLUME_STEP 12.8
 
 #define VOLUME_SAVE_TEXT N_( "Remember the audio volume" )
 #define VOLUME_SAVE_LONGTEXT N_( \
@@ -1460,7 +1460,7 @@ vlc_module_begin ()
     add_float( "gain", 1., GAIN_TEXT, GAIN_LONGTEXT, true )
         change_float_range( 0., 8. )
     add_obsolete_integer( "volume" ) /* since 2.1.0 */
-    add_integer( "volume-step", AOUT_VOLUME_STEP, VOLUME_STEP_TEXT,
+    add_float( "volume-step", AOUT_VOLUME_STEP, VOLUME_STEP_TEXT,
                  VOLUME_STEP_LONGTEXT, true )
         change_integer_range( 1, AOUT_VOLUME_DEFAULT )
     add_bool( "volume-save", true, VOLUME_SAVE_TEXT, VOLUME_SAVE_TEXT, true )

src/playlist/aout.c

@@ -76,7 +76,7 @@ int playlist_VolumeUp (playlist_t *pl, int value, float *volp)
 {
     int ret = -1;
 
-    value *= var_InheritInteger (pl, "volume-step");
+    float delta = value * var_InheritFloat (pl, "volume-step");
 
     audio_output_t *aout = playlist_GetAout (pl);
     if (aout != NULL)
@@ -84,7 +84,7 @@ int playlist_VolumeUp (playlist_t *pl, int value, float *volp)
         float vol = aout_VolumeGet (aout);
         if (vol >= 0.)
         {
-            vol += value / (float)AOUT_VOLUME_DEFAULT;
+            vol += delta / (float)AOUT_VOLUME_DEFAULT;
             if (vol < 0.)
                 vol = 0.;
             if (vol > 2.)