[FFmpeg-cvslog] avformat: increase first_frames threshold for mp3, ac3

[Ganesh Ajjanagadde]

ffmpeg | branch: master | Ganesh Ajjanagadde <gajjanagadde at gmail.com> | Fri Jul 17 22:09:48 2015 -0400| [f6870495e1589f0931f62bdf777fc0ad299e9c14] | committer: Michael Niedermayer

avformat: increase first_frames threshold for mp3,ac3

Fixes Ticket4723

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f6870495e1589f0931f62bdf777fc0ad299e9c14
---

 libavformat/ac3dec.c |    2 +-
 libavformat/mp3dec.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavformat/ac3dec.c b/libavformat/ac3dec.c
index 58ef44d..bef55cb 100644
--- a/libavformat/ac3dec.c
+++ b/libavformat/ac3dec.c
@@ -80,7 +80,7 @@ static int ac3_eac3_probe(AVProbeData *p, enum AVCodecID expected_codec_id)
     if(codec_id != expected_codec_id) return 0;
     // keep this in sync with mp3 probe, both need to avoid
     // issues with MPEG-files!
-    if   (first_frames>=4) return AVPROBE_SCORE_EXTENSION + 1;
+    if   (first_frames>=7) return AVPROBE_SCORE_EXTENSION + 1;
     else if(max_frames>200)return AVPROBE_SCORE_EXTENSION;
     else if(max_frames>=4) return AVPROBE_SCORE_EXTENSION/2;
     else if(max_frames>=1) return 1;
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 731dc63..20af7bc 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -98,7 +98,7 @@ static int mp3_read_probe(AVProbeData *p)
     avcodec_free_context(&avctx);
     // keep this in sync with ac3 probe, both need to avoid
     // issues with MPEG-files!
-    if   (first_frames>=4) return AVPROBE_SCORE_EXTENSION + 1;
+    if   (first_frames>=7) return AVPROBE_SCORE_EXTENSION + 1;
     else if(max_frames>200)return AVPROBE_SCORE_EXTENSION;
     else if(max_frames>=4 && max_frames >= p->buf_size/10000) return AVPROBE_SCORE_EXTENSION / 2;
     else if(ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size)