I just think that you set 45 FPS by yourself. for change FPS I use next code (before init account, call it from method main_func, file main.c): pjmedia_vid_codec_param param; const pj_str_t codec_id = {"H264", 4}; pjsua_vid_codec_get_param(&codec_id, ¶m); param.enc_fmt.det.vid.size.w = 800; param.enc_fmt.det.vid.size.h = 600; param.enc_fmt.det.vid.fps.num = 5;//5 FPS param.enc_fmt.det.vid.fps.denum = 1; param.enc_fmt.det.vid.avg_bps = 250*1000; param.enc_fmt.det.vid.max_bps = 250*1000*2; param.dec_fmtp.param[0].name = pj_str("profile-level-id"); param.dec_fmtp.param[0].val = pj_str("42e01f"); pjsua_vid_codec_set_param(&codec_id, ¶m); -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120725/398f29e3/attachment.html>