If the SDES attributes contain the same key material after an update,
don't recreate the contexts to prevent the reset of a stream ROC. If a
stream has restarted, it should be announced with a different SSRC.

Logs the AES implementation in use. Traces the benchmarked execution times of the available AES implementations.

Adds a boolean ConfigurationService/System property org.jitsi.impl.neomedia.transform.dtls.DtlsPacketTransformer.dropUnencryptedPkts which indicates whether sent/received unencrypted packets are to be dropped.

createRtpdumpMediaDevice() in two methods, so that the one for
audio can accept a specific AudioFormat.

Implements AES and HMAC-SHA1 using OpenSSL. Automatically selects the fastest AES implementation at runtime among BouncyCastle, OpenSSL, Sun JCE and Sun PKCS#11.

Fixes removing ssrcs, a bug where this leads to grow in csrc list in MediaStreamImpl when in one call we have changing of ssrc (the call is one2one).

Attempts to improve the detection of speaker switches performed by the dominant speaker identification via a uniform notion of "silence" among the conference participants.

Supports debugging the 'Dominant Speaker Identification for Multipoint Videoconferencing' implementation through the REST API of Videobridge.

Adds AdvancedAttributesAwareCodec that can handle attributes that are valid for all codecs and fixes parsing them. Adds handling of ptime for one of the codecs.