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-rw-r--r--libavcodec/adpcmenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c
index fb3ce0d24b..2cf8d6f8a2 100644
--- a/libavcodec/adpcmenc.c
+++ b/libavcodec/adpcmenc.c
@@ -549,7 +549,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
put_bits(&pb, 7, status->step_index);
if (avctx->trellis > 0) {
uint8_t buf[64];
- adpcm_compress_trellis(avctx, &samples_p[ch][1], buf, status,
+ adpcm_compress_trellis(avctx, &samples_p[ch][0], buf, status,
64, 1);
for (i = 0; i < 64; i++)
put_bits(&pb, 4, buf[i ^ 1]);