[FFmpeg-devel] [PATCH] libavformat/riffec: Zero-initialize `channels` in `ff_get_wav_header`

[Will Cassella]

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

Signed-off-by: Will Cassella <cassew at google.com>
---
 libavformat/riffdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/riffdec.c b/libavformat/riffdec.c
index 3946ecb72f..fc75500d1f 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) {
-- 
2.37.2.789.g6183377224-goog