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authorMichael Niedermayer <michaelni@gmx.at>2013-06-13 00:01:13 +0200
committerCarl Eugen Hoyos <cehoyos@ag.or.at>2013-06-13 00:14:25 +0200
commit4abc8e76cbbbceff30b871597f65056ef0091a2d (patch)
treed14330a8cb25093ec88e6633de034b42b736f256
parentdfcf910569e7a44ff26cdcf5a9913de51847c7d2 (diff)
downloadffmpeg-4abc8e76cbbbceff30b871597f65056ef0091a2d.tar.gz
alacenc: Fix missing sign_extend()
Fixes ticket #2497 Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit 8aea2f05dc56f7e7d60767dd27ba8e846a05e8ae)
-rw-r--r--libavcodec/alacenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index e8d1bc03f2..5b57837b7e 100644
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -259,7 +259,7 @@ static void alac_linear_predictor(AlacEncodeContext *s, int ch)
// generate warm-up samples
residual[0] = samples[0];
for (i = 1; i <= lpc.lpc_order; i++)
- residual[i] = samples[i] - samples[i-1];
+ residual[i] = sign_extend(samples[i] - samples[i-1], s->write_sample_size);
// perform lpc on remaining samples
for (i = lpc.lpc_order + 1; i < s->avctx->frame_size; i++) {