[FFmpeg-cvslog] lavf/swf: Fix auto-detection of compressed files.

Carl Eugen Hoyos git at videolan.org
Tue Aug 4 21:35:20 CEST 2015


ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Tue Aug  4 21:32:01 2015 +0200| [128e722bc10197320eef6c0f9948be7857afba86] | committer: Carl Eugen Hoyos

lavf/swf: Fix auto-detection of compressed files.

Fixes auto-detection of compressed swf files as in
http://samples.ffmpeg.org/SWF/compressed-swf/
Reported by forum user Zard1096.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=128e722bc10197320eef6c0f9948be7857afba86
---

 libavformat/swfdec.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/swfdec.c b/libavformat/swfdec.c
index 31c26f8..ce1ad8f 100644
--- a/libavformat/swfdec.c
+++ b/libavformat/swfdec.c
@@ -67,6 +67,10 @@ static int swf_probe(AVProbeData *p)
         && AV_RB24(p->buf) != AV_RB24("FWS"))
         return 0;
 
+    if (   AV_RB24(p->buf) == AV_RB24("CWS")
+        && p->buf[3] <= 20)
+        return AVPROBE_SCORE_MAX / 4 + 1;
+
     init_get_bits8(&gb, p->buf + 3, p->buf_size - 3);
 
     skip_bits(&gb, 40);



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