[FFmpeg-cvslog] lavf/amr: Make the heuristic for auto-detection even stricter.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <ceffmpeg at gmail.com> | Fri Jun 22 00:08:13 2018 +0200| [40b7e6071815fc416a4efc5dc1616f5460a3aacb] | committer: Carl Eugen Hoyos

lavf/amr: Make the heuristic for auto-detection even stricter.

Fixes ticket #7270.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=40b7e6071815fc416a4efc5dc1616f5460a3aacb
---

 libavformat/amr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavformat/amr.c b/libavformat/amr.c
index f954803d46..6cc06bceac 100644
--- a/libavformat/amr.c
+++ b/libavformat/amr.c
@@ -201,7 +201,7 @@ static int amrnb_probe(AVProbeData *p)
             i++;
         }
     }
-    if (valid > 100 && valid > invalid)
+    if (valid > 100 && valid >> 4 > invalid)
         return AVPROBE_SCORE_EXTENSION / 2 + 1;
     return 0;
 }
@@ -258,8 +258,8 @@ static int amrwb_probe(AVProbeData *p)
             i++;
         }
     }
-    if (valid > 100 && valid > invalid)
-        return AVPROBE_SCORE_EXTENSION / 2 - 1;
+    if (valid > 100 && valid >> 4 > invalid)
+        return AVPROBE_SCORE_EXTENSION / 2 + 1;
     return 0;
 }