From 088eca28164c8cd3b72b0c3d3f9e3fe5ee5cb28f Mon Sep 17 00:00:00 2001
From: Vittorio Giovara <vittorio.giovara@gmail.com>
Date: Wed, 15 Oct 2014 17:33:00 +0100
Subject: [PATCH] avresample: prevent theoretical division by zero
CC: libav-stable@libav.org
Bug-Id: CID 1231986
---
libavresample/utils.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavresample/utils.c b/libavresample/utils.c
index 5d095c054b1..8ba8a0975b9 100644
--- a/libavresample/utils.c
+++ b/libavresample/utils.c
@@ -585,9 +585,12 @@ static inline int convert_frame(AVAudioResampleContext *avr,
static inline int available_samples(AVFrame *out)
{
+ int samples;
int bytes_per_sample = av_get_bytes_per_sample(out->format);
- int samples = out->linesize[0] / bytes_per_sample;
+ if (!bytes_per_sample)
+ return AVERROR(EINVAL);
+ samples = out->linesize[0] / bytes_per_sample;
if (av_sample_fmt_is_planar(out->format)) {
return samples;
} else {
--
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