From 9463930faf9f7aeb7242de0697def18342bd9374 Mon Sep 17 00:00:00 2001
From: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Date: Fri, 3 Jul 2015 00:02:44 +0200
Subject: [PATCH] wmalosslessdec: reset frame->nb_samples on packet loss

Otherwise a frame with non-zero nb_samples but without any data can be
returned.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 42e7a5b3c704985c2c18970cc94a837b413df9d9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/wmalosslessdec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c
index 75fc84bc7e..05d660e6d4 100644
--- a/libavcodec/wmalosslessdec.c
+++ b/libavcodec/wmalosslessdec.c
@@ -1029,6 +1029,7 @@ static int decode_frame(WmallDecodeCtx *s)
     if ((ret = ff_get_buffer(s->avctx, s->frame, 0)) < 0) {
         /* return an error if no frame could be decoded at all */
         s->packet_loss = 1;
+        s->frame->nb_samples = 0;
         return ret;
     }
     for (i = 0; i < s->num_channels; i++) {