[Sound-open-firmware] [PATCH 2/3] mixer: use int64_t intermediate variable to avoid clamping

As we have changed internal buffer to 32 bits, to avoid clamping, we need to change accumulator to 64 bits.

Signed-off-by: Keyon Jie yang.jie@linux.intel.com --- src/audio/mixer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/audio/mixer.c b/src/audio/mixer.c index d08bc30..b996dae 100644 --- a/src/audio/mixer.c +++ b/src/audio/mixer.c @@ -51,7 +51,8 @@ struct mixer_data { static void mix_n(struct comp_dev *dev, struct comp_buffer *sink, struct comp_buffer **sources, uint32_t num_sources, uint32_t frames) { - int32_t *src, *dest = sink->w_ptr, val[2], count; + int32_t *src, *dest = sink->w_ptr, count; + int64_t val[2]; int i, j;

count = frames * sink->params.channels;