From 23d835f6113b92f7a3ae9ab8eb091a554ef47d51 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 13 Jun 2013 00:01:13 +0200 Subject: [PATCH] alacenc: Fix missing sign_extend() Fixes ticket #2497 Signed-off-by: Michael Niedermayer (cherry picked from commit 8aea2f05dc56f7e7d60767dd27ba8e846a05e8ae) Conflicts: libavcodec/alacenc.c --- libavcodec/alacenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c index bb618e16f2..235bff6637 100644 --- a/libavcodec/alacenc.c +++ b/libavcodec/alacenc.c @@ -257,7 +257,7 @@ 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++) {