Customer Premises Equipment Virtualization

Virtualization 1

Virtualization Virtualization the creation of a virtual rather than actual version of a device Internet of Things (IoT) integration of the physical world into computer-based systems

Virtualization ETSI(European Telecommunications Standards Institute) Network Function Virtualization (NFV) design, deploy and manage a fully virtualized infrastructure

Traditional Home Enironment Virtualized Home Enironment STB/RGW vSTB/vRGW

Pros & Cons of vSTB/vRGW CAPEX Reduction OPEX Reduction Improved QoE Reduced dependency on the CPE Cons Enormous amounts of cloud resources

Network Topology Source Video Transmission vSTB/vRGW Video Reception Transcoding Video Relay PVR (Personal Video Recorder) Destination Video Reception Video Projection

Inventory 2

OpenStack Services Compute Storage Networking Overview Dashboard Command line interface (CLI)

OpenStack Dashboard CLI

RTP & RTCP Real-Time Transmission Protocol Payload Identification Source Identification Sequence Numbering Timestamping RTP Control Protocol QoS Monitoring Congestion Control Identification Session size estimation Scaling

GStreamer API for multimedia applications Pipeline Architecture Plugin Architecture Protocol Handling Extensible

Useful Libraries GLib Provide the main loop GTK+ GIO Graphical User Interface GIO User network control

Implementation 3

Destination characteristics Video Projection

Destination Implementation Graphical User Interface Interaction PLAYING: State changing Destination → vSTB/vRGW → Source PAUSE: State changing Destination → vSTB/vRGW → Source START_RECORDING: Branch adding Destination → vSTB/vRGW STOP_RECORDING: Branch removing Destination → vSTB/vRGW UP: Caps modification Destination → vSTB/vRGW DOWN: Caps modification Destination → vSTB/vRGW

vSTB/vRGW characteristics Block Diagram

vSTB/vRGW characteristics Video Recording branch Adding branch: Removing branch: if (gst_pad_link (tee_save_pad, bin_pad) != GST_PAD_LINK_OK) { g_printerr ("Save-Tee could not be linked.\n"); gst_object_unref (pipeline); return -1; } //Set the bin state to PLAYING// gst_element_set_state (bin, GST_STATE_PLAYING); /* remove the probe first */ gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info)); gst_object_ref (bin); gst_bin_remove (GST_BIN (pipeline), bin); gst_pad_send_event (bin_pad, gst_event_new_eos ()); gst_element_set_state (bin, GST_STATE_NULL);

vSTB/vRGW characteristics Video Transcoding branch Changing caps: Caps specifications: g_object_set (G_OBJECT(capsfilter), "caps", caps6, NULL); resol ++; g_print("Changing resolution to %d:\n", resol); /* setting up the caps on videoscale elements caps6 = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT, 640, "height", G_TYPE_INT, 360, NULL); caps5 = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT, 360, "height", G_TYPE_INT, 280, NULL); caps4 = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT, 280, "height", G_TYPE_INT, 240, NULL); …

Measurements 4

Quality comparison High quality content Low quality content

Network distribution High quality content

Network traffic   However   Thus  

Sum of network traffic   For the same stream:   thus:  

Network distribution Quality variations in content Low Quality content

Sum of network traffic   For the transcoded stream:      

Workload Distribution High quality, no recording enabled High quality with recording enabled

Workload Distribution Low quality, no recording enabled Low quality with recording enabled

Statistics Statistics reception GstStructure *stats; gchar *str; /* get the source stats */ g_object_get (source, "stats", &stats, NULL); /* simply dump the stats structure */ str = gst_structure_to_string (stats); g_print ("source stats: %s\n", str); Statistics publications

Conclusion Reduced cost Improved transition Environment friendly