From c890bcbacf321ebd135b952e748f546c9723ec2e Mon Sep 17 00:00:00 2001
From: Rodger Combs <rodger.combs@gmail.com>
Date: Thu, 7 Apr 2016 20:28:32 -0500
Subject: [PATCH] lavf/audiotoolboxdec: only provide block alignment for ILBC

Fixes decode errors for some AVI files
---
 libavcodec/audiotoolboxdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/audiotoolboxdec.c b/libavcodec/audiotoolboxdec.c
index 80b1f33922..31e14d4f90 100644
--- a/libavcodec/audiotoolboxdec.c
+++ b/libavcodec/audiotoolboxdec.c
@@ -301,7 +301,7 @@ static av_cold int ffat_create_decoder(AVCodecContext *avctx, AVPacket *pkt)
 
     AudioStreamBasicDescription in_format = {
         .mFormatID = ffat_get_format_id(avctx->codec_id, avctx->profile),
-        .mBytesPerPacket = avctx->block_align,
+        .mBytesPerPacket = (avctx->codec_id == AV_CODEC_ID_ILBC) ? avctx->block_align : 0,
     };
     AudioStreamBasicDescription out_format = {
         .mFormatID = kAudioFormatLinearPCM,