doc/examples/filtering_audio: init packet0.data

Fixes use of uinitialized data and crash

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

diff --git a/doc/examples/filtering_audio.c b/doc/examples/filtering_audio.c
index 5802d90..1d66ca3 100644 (file)
--- a/doc/examples/filtering_audio.c
+++ b/doc/examples/filtering_audio.c
@@ -220,6 +220,7 @@ int main(int argc, char **argv)
         goto end;
 
     /* read all packets */
+    packet0.data = NULL;
     packet.data = NULL;
     while (1) {
         if (!packet0.data) {