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-rw-r--r--tools/aif2pcm/main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/aif2pcm/main.c b/tools/aif2pcm/main.c
index cd5ac4a50..b9709bee8 100644
--- a/tools/aif2pcm/main.c
+++ b/tools/aif2pcm/main.c
@@ -426,7 +426,9 @@ int get_delta_index(uint8_t sample, uint8_t prev_sample)
for (int i = 0; i < 16; i++)
{
uint8_t new_sample = prev_sample + gDeltaEncodingTable[i];
- int error = sample > new_sample ? sample - new_sample : new_sample - sample;
+ uint8_t sample_diff_1 = (sample - new_sample) & 0xff;
+ uint8_t sample_diff_2 = (new_sample - sample) & 0xff;
+ int error = sample_diff_1 < sample_diff_2 ? sample_diff_1 : sample_diff_2;
if (error < best_error)
{