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mixer/alsa: work around rounding error at volume 0

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Due to rounding errors, a slightly negative value can be passed to
set_normalized_volume(), which will make the log10() call fail.
Actually, volume 0 is already failing because log10(0) is illegal.  So
let's fix this by implementing two corner cases: <=0 and >=100.

Closes #212
This commit is contained in:
Max Kellermann
2018-02-10 09:07:51 +01:00
parent e0ca4b865a
commit bede564618
2 changed files with 9 additions and 0 deletions
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@@ -1,6 +1,8 @@
ver 0.20.17 (not yet released)
* output
- alsa: fix crash bug with 8 channels
* mixer
- alsa: fix rounding error at volume 0
* fix real-time and idle scheduling with Musl
* Android
- fix compatibility with Android 4.0