$ vlc uncooked.h264 --demux h264

Figuring out Encrypted Audio

We additionally observed different packets in our Wireshark seize that started with the header worth 0x050f0100 and the RTP header in these packets typically contained a kind worth of 112. In these packets, the RTP timestamp was incremented by 640 between subsequent packets. We positioned a research paper that describes how you can infer the kind of RTP audio codecs by wanting at varied metadata in the RTP packets, together with the distinction between the RTP timestamps in subsequent packets. The paper gives one chance for a timestamp distinction of 640, which is the Skype-developed SILK codec, at a 16000Hz pattern price. We additionally famous that the RTP payloads in these packets appeared to have an analogous encryption format as the NALU payloads in the video packets, although they appeared to include a two-byte fairly than four-byte size header.