[FFmpeg-cvslog] avformat/aiffdec: sanity check block_align

[Michael Niedermayer]

ffmpeg | branch: release/3.4 | Michael Niedermayer <michael at niedermayer.cc> | Sun Oct 31 00:10:39 2021 +0200| [a7eeea7872f3fe854a46a57bce14525844128520] | committer: Michael Niedermayer

avformat/aiffdec: sanity check block_align

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 93f7776921ed8c5219732210067016c3457e864d)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a7eeea7872f3fe854a46a57bce14525844128520
---

 libavformat/aiffdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c
index 0b05af7e6d..939e338096 100644
--- a/libavformat/aiffdec.c
+++ b/libavformat/aiffdec.c
@@ -353,7 +353,7 @@ got_sound:
     if (!st->codecpar->block_align && st->codecpar->codec_id == AV_CODEC_ID_QCELP) {
         av_log(s, AV_LOG_WARNING, "qcelp without wave chunk, assuming full rate\n");
         st->codecpar->block_align = 35;
-    } else if (!st->codecpar->block_align) {
+    } else if (st->codecpar->block_align <= 0) {
         av_log(s, AV_LOG_ERROR, "could not find COMM tag or invalid block_align value\n");
         return -1;
     }