diff options
| author | David Henningsson <david.henningsson@canonical.com> | 2010-10-08 18:47:00 +0200 |
|---|---|---|
| committer | Colin Guthrie <cguthrie@mandriva.org> | 2010-10-13 14:52:03 +0100 |
| commit | 4d84a00b495c44a9e348534bf754ace823c9abe8 (patch) | |
| tree | aa84e0c55c9e2959e11ead3ec158943399c7f468 /src/pulsecore/svolume_arm.c | |
| parent | 489f50e2f4160f1368df38657bb91e77fd52c861 (diff) | |
SSE/MMX/ARM: Fix high frequency noise with unusual number of channels
In the assembly optimized versions of SSE, a noise could occur when the
number of channels were 3,5,6 or 7. For MMX and ARM, this could occur
when the number of channels were 3.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Diffstat (limited to 'src/pulsecore/svolume_arm.c')
| -rw-r--r-- | src/pulsecore/svolume_arm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/pulsecore/svolume_arm.c b/src/pulsecore/svolume_arm.c index 5bd1448f..fdd8f09a 100644 --- a/src/pulsecore/svolume_arm.c +++ b/src/pulsecore/svolume_arm.c @@ -47,7 +47,10 @@ pa_volume_s16ne_arm (int16_t *samples, int32_t *volumes, unsigned channels, unsi { int32_t *ve; - channels = PA_MAX (4U, channels); + /* Channels must be at least 4, and always a multiple of the original number. + * This is also the max amount we overread the volume array, which should + * have enough padding. */ + channels = channels == 3 ? 6 : PA_MAX (4U, channels); ve = volumes + channels; __asm__ __volatile__ ( |