mpeg_descriptor: AC3 System A: Respect descriptor length
**This issue was migrated from [bug 13939](https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13939) in our old bug tracker.**
Original bug information:
**Reporter:** Marius Paliga\
**Status:** RESOLVED FIXED\
**Product:** Wireshark\
**Component:** Dissection engine (libwireshark)\
**OS:** All\
**Platform:** All\
**Version:** 2.4.0
Attachments:
[rtppacket.pcap](/uploads/0156bcd68a815dc2d3e74e53df9a0a4d/rtppacket.pcap): sample rtp packet
issue