[FFmpeg-cvslog] lavf/mpeg: Do not detect unknown audio in Hikvision streams as alaw.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sun May 17 12:57:27 2015 +0200| [ee8c18387d02a7ee5ee3317cf1cecd84a7e0d91a] | committer: Carl Eugen Hoyos

lavf/mpeg: Do not detect unknown audio in Hikvision streams as alaw.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ee8c18387d02a7ee5ee3317cf1cecd84a7e0d91a
---

 libavformat/mpeg.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index 9cc0422..edb134f 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -550,7 +550,7 @@ redo:
             codec_id = AV_CODEC_ID_ADPCM_ADX;
             // Auto-detect AC-3
             request_probe = 50;
-        } else if (m->imkh_cctv && startcode == 0x1c0) {
+        } else if (m->imkh_cctv && startcode == 0x1c0 && len > 80) {
             codec_id = AV_CODEC_ID_PCM_ALAW;
             request_probe = 50;
         } else {