I have following use-case:

My UAC makes video call(it offers VP8 and Opus codecs) and after unsuccessful bridge Freeswitch will answer a call and execute record app. When freeswitch fires answer app it offers SDP containing VP8 and OPUS, but I would like that it offers only Opus. Because freeswitch offers VP8, my UAC starts video call and record app do not work as expected.

I'm getting following error:

"[ERR] switch_ivr_play_say.c:496 Unable to establish inbound video stream"

I need somehow to set absolute_codec_string after unsuccessful bridge.

I tried but it didn't worked. If freeswitch answers immediately without bridge, then I'm able to set absolute_codec_string.