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-rw-r--r--libavcodec/alacenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index b9ad899e16..fd5bf66005 100644
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -444,7 +444,7 @@ static void write_element(AlacEncodeContext *s,
// TODO: determine when this will actually help. for now it's not used.
if (prediction_type == 15) {
// 2nd pass 1st order filter
- int32_t *residual = s->predictor_buf[channels];
+ int32_t *residual = s->predictor_buf[i];
for (j = s->frame_size - 1; j > 0; j--)
residual[j] -= residual[j - 1];
}