From f6586314193048073e7d8771e9114c4beb3917cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20=C3=96man?= <andreas@lonelycoder.com>
Date: Tue, 8 Dec 2009 19:20:36 +0000
Subject: [PATCH] aac: Set sample rate in avctx from ADTS header (if not
 already set by some other means)

Originally committed as revision 20773 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/aac.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/aac.c b/libavcodec/aac.c
index 6b2c4169d7..c53d56813d 100644
--- a/libavcodec/aac.c
+++ b/libavcodec/aac.c
@@ -1692,6 +1692,8 @@ static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
         ac->m4ac.sample_rate     = hdr_info.sample_rate;
         ac->m4ac.sampling_index  = hdr_info.sampling_index;
         ac->m4ac.object_type     = hdr_info.object_type;
+        if (!ac->avccontext->sample_rate)
+            ac->avccontext->sample_rate = hdr_info.sample_rate;
         if (hdr_info.num_aac_frames == 1) {
             if (!hdr_info.crc_absent)
                 skip_bits(gb, 16);