From a20639017bfca0490bb1799575714f22bf470b4f Mon Sep 17 00:00:00 2001
From: Alex Converse <alex.converse@gmail.com>
Date: Sat, 19 Jun 2010 14:14:51 +0000
Subject: Add HE-AAC v2 support to the AAC decoder.

Originally committed as revision 23647 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/mpeg4audio.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'libavcodec/mpeg4audio.c')

diff --git a/libavcodec/mpeg4audio.c b/libavcodec/mpeg4audio.c
index 7507212c76..f9951b1604 100644
--- a/libavcodec/mpeg4audio.c
+++ b/libavcodec/mpeg4audio.c
@@ -131,6 +131,14 @@ int ff_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int buf_si
                 get_bits1(&gb); // skip 1 bit
         }
     }
+
+    //PS requires SBR
+    if (!c->sbr)
+        c->ps = 0;
+    //Limit implicit PS to the HE-AACv2 Profile
+    if ((c->ps == -1 && c->object_type != AOT_AAC_LC) || c->channels & ~0x01)
+        c->ps = 0;
+
     return specific_config_bitindex;
 }
 
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