synth_superframe can be called twice per call to decode_packet.
It is not fully clear if calling ff_get_buffer on the same frame twice
is supported, so unref the frame first to be save.
---
libavcodec/wmavoice.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c
index 2ec4499981..3f86d0da35 100644
--- a/libavcodec/wmavoice.c
+++ b/libavcodec/wmavoice.c
@@ -1756,6 +1756,10 @@ static int synth_superframe(AVCodecContext *ctx, AVFrame
*frame,
stabilize_lsps(lsps[n], s->lsps);
}
+ /* synth_superframe can run multiple times per packet
+ * free potential previous frame */
+ av_frame_unref(frame);
+
/* get output buffer */
frame->nb_samples = MAX_SFRAMESIZE;
if ((res = ff_get_buffer(ctx, frame, 0)) < 0)
--
2.14.2
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