mixer: do not unmute to volume 0, instead unmute to max.

It's not very useful for unmute to still result in volume 0.
Plus it makes it easier to enable sound for devices that were
on mute at startup.

mixer.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mixer.c b/mixer.c
index 8b290d5..d2d6e18 100644
--- a/mixer.c
+++ b/mixer.c
@@ -129,7 +129,12 @@ void mixer_getbothvolume(mixer_t *mixer, float *b)

void mixer_mute(mixer_t *mixer)

- if (mixer->muted) mixer_setvolume(mixer, mixer->last_l, mixer->last_r);
+ if (mixer->muted) {
+ // unmuting to volume 0 makes no sense
+ if (mixer->last_l == 0) mixer->last_l = 100;
+ if (mixer->last_r == 0) mixer->last_r = 100;
+ mixer_setvolume(mixer, mixer->last_l, mixer->last_r);
+ }
else

mixer_getvolume(mixer, 騬>last_l, 騬>last_r);