ff_rdt_parse_open(AVFormatContext *ic, int first_stream_of_set_idx, void *priv_data, RTPDynamicProtocolHandler *handler) { RDTDemuxContext *s = av_mallocz(sizeof(RDTDemuxContext)); if (!s) return NULL; s->ic = ic; s->streams = &ic->streams[first_stream_of_set_idx]; do { s->n_streams++; } while (first_stream_of_set_idx + s->n_streams < ic->nb_streams && s->streams[s->n_streams]->priv_data == s->streams[0]->priv_data); s->prev_set_id = -1; s->prev_stream_id = -1; s->prev_timestamp = -1; s->parse_packet = handler->parse_packet; s->dynamic_protocol_context = priv_data; return s; }