flvdemux: be careful with negative cts

Fixes #661477.
2011-10-11 20:56:51 +04:00 · 2011-10-11 20:56:51 +04:00 · 6b168ffb44
commit 6b168ffb44
parent 4924308d02
1 changed files with 3 additions and 1 deletions
--- a/gst/flv/gstflvdemux.c
+++ b/gst/flv/gstflvdemux.c
@ -1195,7 +1195,9 @@ gst_flv_demux_parse_tag_video (GstFlvDemux * demux, GstBuffer * buffer)

    GST_LOG_OBJECT (demux, "got cts %d", cts);

-    pts = pts + cts;
+    /* avoid negative overflow */
+    if (cts >= 0 || pts >= -cts)
+      pts += cts;
  }

  GST_LOG_OBJECT (demux, "video tag with codec tag %u, keyframe (%d) "