ffmpeg | branch: master | Will Cassella <cas...@chromium.org> | Fri Sep  9 
22:50:32 2022 +0000| [e601ec3c1991ee09ff45db3be4d894e5774f6f2b] | committer: 
James Almer

libavformat/riffec: Zero-initialize channels in ff_get_wav_header

Clang's static analyzer complains that leaving the  variable
uninitialized could lead to a code path where the uninitialized value is
written to  at the end of this function.
This patch simply zero-initializes that variable to avoid that.

Signed-off-by: Will Cassella <cas...@google.com>
Signed-off-by: James Almer <jamr...@gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e601ec3c1991ee09ff45db3be4d894e5774f6f2b
---

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

diff --git a/libavformat/riffdec.c b/libavformat/riffdec.c
index c1e4a04550..1c149388ab 100644
--- a/libavformat/riffdec.c
+++ b/libavformat/riffdec.c
@@ -94,7 +94,7 @@ static void parse_waveformatex(AVFormatContext *s, 
AVIOContext *pb, AVCodecParam
 int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
                       AVCodecParameters *par, int size, int big_endian)
 {
-    int id, channels;
+    int id, channels = 0;
     uint64_t bitrate = 0;
 
     if (size < 14) {

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