From a1977e0103d23212b842e8398baaf0269891d9e5 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Tue, 20 Mar 2012 13:21:52 -0400
Subject: [PATCH] lavc: shrink encoded audio packet size after encoding.

---
 libavcodec/utils.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index fc48f029f6..a638bbfc91 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -960,8 +960,15 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
         if (fs_tmp)
             avctx->frame_size = fs_tmp;
     }
-    if (!ret)
+    if (!ret) {
+        if (!user_packet && avpkt->data) {
+            uint8_t *new_data = av_realloc(avpkt->data, avpkt->size);
+            if (new_data)
+                avpkt->data = new_data;
+        }
+
         avctx->frame_number++;
+    }
 
     if (ret < 0 || !*got_packet_ptr)
         av_free_packet(avpkt);