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-rw-r--r--libavformat/apm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/apm.c b/libavformat/apm.c
index 91eea86a57..baf7d2f941 100644
--- a/libavformat/apm.c
+++ b/libavformat/apm.c
@@ -140,7 +140,7 @@ static int apm_read_header(AVFormatContext *s)
if (par->bits_per_coded_sample != 4)
return AVERROR_INVALIDDATA;
- if (channels > 2)
+ if (channels > 2 || channels == 0)
return AVERROR_INVALIDDATA;
av_channel_layout_default(&par->ch_layout, channels);