#6  0xb7afc7ef in IA__g_hash_table_find (hash_table=0x0, 
    predicate=0xb78dba88 <match_dyn_pt>, user_data=0x816fc70) at ghash.c:691
#7  0xb78db8ab in update_local_dynamic_codecs (
    media_type=FARSIGHT_MEDIA_TYPE_VIDEO, remote_codecs=0x810d330)
    at rtpgstcodecs.c:678
#8  0xb78dae02 in farsight_rtp_stream_set_remote_codecs (stream=0x810a8f8, 
    codecs=0x0) at rtpstream.c:1222
#9  0xb7ee6691 in farsight_stream_set_remote_codecs (self=0x810a8f8, 
    codecs=0x810d390) at farsight-stream.c:568
#10 0x080507b6 in set_remote_codecs (proxy=0x813ac88, codecs=0x810d480, 
---Type <return> to continue, or q <return> to quit---
    user_data=0x8109518) at stream.c:708