From: Andriy Gelman <andriy.gel...@gmail.com>
Fixes #7985
This patch checks that the number of audio channels is not zero when
writing the total sample count in adx header.
---
libavformat/rawenc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/rawenc.c b/libavformat/rawenc.c
index 993d232b70..bf8537fffb 100644
--- a/libavformat/rawenc.c
+++ b/libavformat/rawenc.c
@@ -65,6 +65,9 @@ static int adx_write_trailer(AVFormatContext *s)
AVIOContext *pb = s->pb;
AVCodecParameters *par = s->streams[0]->codecpar;
+ if (par->channels == 0)
+ return AVERROR_INVALIDDATA;
+
if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
int64_t file_size = avio_tell(pb);
uint64_t sample_count = (file_size - 36) / par->channels / 18 * 32;
--
2.22.0
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