1 files changed, 21 insertions, 16 deletions

diff --git a/libavcodec/aac_ac3_parser.c b/libavcodec/aac_ac3_parser.c
index a754f4a957..4e834b4424 100644
--- a/libavcodec/aac_ac3_parser.c
+++ b/libavcodec/aac_ac3_parser.c
@@ -3,20 +3,20 @@
  * Copyright (c) 2003 Fabrice Bellard
  * Copyright (c) 2003 Michael Niedermayer
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -34,6 +34,7 @@ int ff_aac_ac3_parse(AVCodecParserContext *s1,
     ParseContext *pc = &s->pc;
     int len, i;
     int new_frame_start;
+    int got_frame = 0;
 
 get_next:
     i=END_NOT_FOUND;
@@ -51,6 +52,7 @@ get_next:
             if(len<=0){
                 i=END_NOT_FOUND;
             }else{
+                got_frame = 1;
                 s->state=0;
                 i-= s->header_size -1;
                 s->remaining_size = len;
@@ -76,19 +78,22 @@ get_next:
     if(s->codec_id)
         avctx->codec_id = s->codec_id;
 
-    /* Due to backwards compatible HE-AAC the sample rate, channel count,
-       and total number of samples found in an AAC ADTS header are not
-       reliable. Bit rate is still accurate because the total frame duration in
-       seconds is still correct (as is the number of bits in the frame). */
-    if (avctx->codec_id != AV_CODEC_ID_AAC) {
-        avctx->sample_rate = s->sample_rate;
-        avctx->channels = s->channels;
-        avctx->channel_layout = s->channel_layout;
-        s1->duration = s->samples;
-        avctx->audio_service_type = s->service_type;
-    }
+    if (got_frame) {
+        /* Due to backwards compatible HE-AAC the sample rate, channel count,
+           and total number of samples found in an AAC ADTS header are not
+           reliable. Bit rate is still accurate because the total frame
+           duration in seconds is still correct (as is the number of bits in
+           the frame). */
+        if (avctx->codec_id != AV_CODEC_ID_AAC) {
+            avctx->sample_rate = s->sample_rate;
+            avctx->channels = s->channels;
+            avctx->channel_layout = s->channel_layout;
+            s1->duration = s->samples;
+            avctx->audio_service_type = s->service_type;
+        }
 
-    avctx->bit_rate = s->bit_rate;
+        avctx->bit_rate = s->bit_rate;
+    }
 
     return i;
 }