[FFmpeg-trac] #7270(avformat:new): MIDI misdetected as amr

[FFmpeg]

#7270: MIDI misdetected as amr
-------------------------------------+-------------------------------------
             Reporter:  cgbug        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  amr probe    |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Please test if this change fixes the issue for you:
 {{{
 diff --git a/libavformat/amr.c b/libavformat/amr.c
 index f954803..3abce27 100644
 --- a/libavformat/amr.c
 +++ b/libavformat/amr.c
 @@ -201,8 +201,10 @@ static int amrnb_probe(AVProbeData *p)
              i++;
          }
      }
 -    if (valid > 100 && valid > invalid)
 +    if (valid > 100 && valid >> 4 > invalid)
          return AVPROBE_SCORE_EXTENSION / 2 + 1;
 +    if (valid > 100 && valid > invalid)
 +        return AVPROBE_SCORE_EXTENSION / 4;
      return 0;
  }

 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7270#comment:3>
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