From b8deb7c34f755d5e3eee0b5930c3a6ad2dda96bc Mon Sep 17 00:00:00 2001
From: Kieran Kunhya <kierank@obe.tv>
Date: Wed, 28 Oct 2015 17:01:56 +0100
Subject: [PATCH] opus: Do not call vector_fmul_scalar on zero samples
The x86 variant of this function crashes in that specific case.
CC: libav-devel@libav.org
---
libavcodec/opusdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/opusdec.c b/libavcodec/opusdec.c
index 919e5e33034..92e651c787f 100644
--- a/libavcodec/opusdec.c
+++ b/libavcodec/opusdec.c
@@ -587,7 +587,7 @@ static int opus_decode_packet(AVCodecContext *avctx, void *data,
memset(frame->extended_data[i], 0, frame->linesize[0]);
}
- if (c->gain_i) {
+ if (c->gain_i && decoded_samples > 0) {
c->fdsp.vector_fmul_scalar((float*)frame->extended_data[i],
(float*)frame->extended_data[i],
c->gain, FFALIGN(decoded_samples, 8));
--
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