I have not looked into the code in detail. However, the SRTP protect usually appends some data to the exisiting buffer: the authentication code. Thus it is usually necessary to copy the incoming data into a bigger buffer to have room to add the authentication code. Werner Am 14.05.2014 16:35, schrieb Eeri Kask: > Hello, > > it looks like SRTP-transport (pjmedia/src/pjmedia/transport_srtp.c) > copies the whole outgoing communication (video+audio) in RAM from > location A to B without any easily apparent purpose; e.g. for video this > is cir 32 Kbyte/sec traffic if ffmpeg-encoder bitrate is set to 256Kbit. > Is it feasible to avoid this overhead? > > (In contrast, incoming communication is not copied, "srtp_unprotect()" > operates directly on packet-buffer 'pkt'.) > > Eeri Kask > > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > -- Werner Dittmann email: Werner.Dittmann at t-online.de cell: +49 173 44 37 659 PGP key: 82EF5E8B
