From 9761abffb69d9cb24fc187ffb2900b039a1ffd5e Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Fri, 28 Jun 2013 05:21:33 +0200
Subject: [PATCH] wmapro: return early on unsupported condition

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 6652338f43ef623045912d7f28b61adea05d27ae)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Conflicts:
	libavcodec/wmaprodec.c
---
 libavcodec/wmaprodec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c
index eed38f6dc7..57c22a4063 100644
--- a/libavcodec/wmaprodec.c
+++ b/libavcodec/wmaprodec.c
@@ -722,6 +722,7 @@ static int decode_channel_transform(WMAProDecodeCtx* s)
                     if (get_bits1(&s->gb)) {
                         av_log_ask_for_sample(s->avctx,
                                               "unsupported channel transform type\n");
+                        return AVERROR_PATCHWELCOME;
                     }
                 } else {
                     chgroup->transform = 1;