[PATCH] look for valid mpeg frames when decoding instead of =

[David Byron none]

giving up if a packet doesn't begin with an mpeg frame=0A=
=0A=
---=0A=
 Changelog                 |    1 +=0A=
 libavcodec/mpegaudiodec.c |   15 +++++++++------=0A=
 2 files changed, 10 insertions(+), 6 deletions(-)=0A=
=0A=
diff --git a/Changelog b/Changelog=0A=
index 263fb74..e6b7ba6 100644=0A=
--- a/Changelog=0A=
+++ b/Changelog=0A=
@@ -4,6 +4,7 @@ releases are sorted from youngest to oldest.=0A=
 =0A=
 version <next>:=0A=
 =0A=
+- look for valid mpeg frames when decoding=0A=
 - read all id3v2 tags at the beginning of mp3 files=0A=
 - WebM support in Matroska de/muxer=0A=
 - low overhead Ogg muxing=0A=
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c=0A=
index 769be89..03a4f9e 100644=0A=
--- a/libavcodec/mpegaudiodec.c=0A=
+++ b/libavcodec/mpegaudiodec.c=0A=
@@ -2038,14 +2038,17 @@ static int decode_frame(AVCodecContext * avctx,=0A=
     int out_size;=0A=
     OUT_INT *out_samples =3D data;=0A=
 =0A=
-    if(buf_size < HEADER_SIZE)=0A=
-        return -1;=0A=
-=0A=
+    while (buf_size >=3D HEADER_SIZE) {=0A=
     header =3D AV_RB32(buf);=0A=
-    if(ff_mpa_check_header(header) < 0){=0A=
-        av_log(avctx, AV_LOG_ERROR, "Header missing\n");=0A=
-        return -1;=0A=
+    if(ff_mpa_check_header(header) >=3D 0){=0A=
+        break;=0A=
     }=0A=
+    buf++;=0A=
+    buf_size--;=0A=
+    }=0A=
+=0A=
+    if(buf_size < HEADER_SIZE)=0A=
+        return -1;=0A=
 =0A=
     if (ff_mpegaudio_decode_header((MPADecodeHeader *)s, header) =3D=3D =
1) {=0A=
         /* free format: prepare to compute frame size */=0A=
-- =0A=
1.6.0.4=0A=
=0A=

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