void avformat_close_input(AVFormatContext **ps) { AVFormatContext *s = *ps; AVIOContext *pb = (s->iformat->flags & AVFMT_NOFILE) || (s->flags & AVFMT_FLAG_CUSTOM_IO) ? NULL : s->pb; flush_packet_queue(s); if (s->iformat->read_close) s->iformat->read_close(s); avformat_free_context(s); *ps = NULL; avio_close(pb); }