[FFmpeg-cvslog] aac: Only output configure if audio was found.

[Alex Converse]

ffmpeg | branch: release/0.8 | Alex Converse <alex.converse at gmail.com> | Tue Aug 16 11:03:26 2011 -0700| [5925e25218cb8f053bc81591995d78728ab096f2] | committer: Anton Khirnov

aac: Only output configure if audio was found.

Audio found is not triggered on a CCE because a CCE alone has no output.

Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
(cherry picked from commit d8425ed4af6d8fce62ff363cc590f85e57bac06b)

Signed-off-by: Anton Khirnov <anton at khirnov.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5925e25218cb8f053bc81591995d78728ab096f2
---

 libavcodec/aacdec.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index f94b109..2958ddb 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -2074,7 +2074,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
     ChannelElement *che = NULL, *che_prev = NULL;
     enum RawDataBlockType elem_type, elem_type_prev = TYPE_END;
     int err, elem_id, data_size_tmp;
-    int samples = 0, multiplier;
+    int samples = 0, multiplier, audio_found = 0;
 
     if (show_bits(gb, 12) == 0xfff) {
         if (parse_adts_frame_header(ac, gb) < 0) {
@@ -2105,10 +2105,12 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
 
         case TYPE_SCE:
             err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
             break;
 
         case TYPE_CPE:
             err = decode_cpe(ac, gb, che);
+            audio_found = 1;
             break;
 
         case TYPE_CCE:
@@ -2117,6 +2119,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
 
         case TYPE_LFE:
             err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
             break;
 
         case TYPE_DSE:
@@ -2193,7 +2196,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
                                                    samples, avctx->channels);
     }
 
-    if (ac->output_configured)
+    if (ac->output_configured && audio_found)
         ac->output_configured = OC_LOCKED;
 
     return 0;