avcodec/opusdec: Clear out pointers per packet

This is safer than to assume that all error pathes cleared them and
nothing will use uncleared pointers.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1ae092587fc196da5098dea346d7ece81ec35153)

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

1 files changed, 6 insertions, 0 deletions

diff --git a/libavcodec/opusdec.c b/libavcodec/opusdec.c
index 3ce519d1dc..bd27ec592f 100644
--- a/libavcodec/opusdec.c
+++ b/libavcodec/opusdec.c
@@ -452,6 +452,12 @@ static int opus_decode_packet(AVCodecContext *avctx, void *data,
     int decoded_samples = 0;
     int i, ret;
 
+    for (i = 0; i < c->nb_streams; i++) {
+        OpusStreamContext *s = &c->streams[i];
+        s->out[0] =
+        s->out[1] = NULL;
+    }
+
     /* decode the header of the first sub-packet to find out the sample count */
     if (buf) {
         OpusPacket *pkt = &c->streams[0].packet;