26 4K VOD A research on VOD services transfer control corresponding to the 4K videos

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1 26 4K VOD A research on VOD services transfer control corresponding to the 4K videos

2 4K VOD VOD(Video On Demand) VOD SD(Standard Definition) HD(High Definition) 4K ITU VOD 4K HD 4 VOD 4K CDN(Contents Delivery Network) CDN VOD 1Gbps H.265/HEVC 4 4K Kbps sec 4K IP i

3 VOD 4K CDN H.256/HEVC ii

4 Abstract A research on VOD services transfer control corresponding to the 4K videos. Hiroaki Yamashita Currently, with the development of transmission technology, the opportunity to view video on the Internet is increasing. As a movie viewing service, VOD(Video On Demand) service is penetrated. However, the video content of the VOD service is a mainstream HD(High Definition) image quality and SD(Standard Definition) quality. Recently, video distribution industry. tries supply 4K high definition services band on International Telecommunications Union ITU standard, The difficuly to be covered for the introduction of 4K ultra-high-definition video would be the huge pixels of four times size compared to the HD image. The 4K frame has a pixel of Therefore, a high transmission rate is also required. In this paper, in order to incorporate 4K ultra-high-definition Video in VOD services, the proposal system adopted the cache server for the CDN sub system. By using the cache server, a control mechanism for implementing the video viewing was proposed. Based on the quality metrics of the CDN cache server, video content has been distributed to a storage system. Convert-server could extend the contents even for the existing video resources. For transmitting the overall contents of VOD service, 1Gbps transmission bandwidth was assumed between end users and the content distribution server. The encoding of H.265/HEVC was assumed to simulate the high definition 4K contents delivery. The video transmission needed 6,251 6,266Kbps for the four levels iii

5 of QoS metrics. The result showed that sec was needed at least to convert the implementation environment. Finally, it is clarified that a reasonable server architecture proposed would realize the 4K Super High Definition Video VOD service. key words VOD, 4K Super High Definition Video, CDN, H.265/HEVC iv

6 VOD VOD(Video On Demand) VOD TCP(Transmission Control Protocol) UDP(User Datagram Protocol) RTP(Real time Transport Protocol) RTSP(Real Time Streaming Protocol) v

7 2.7.1 CDN(Contents Delivery Network) H.265/HEVC(High Efficiency Video Coding) MPEG2-TS(Transport Stream) K VOD K BASE-T K CDN SLA IPTV SLA QoS CDN vi

8 DivXMKVMux CDN vii

9 1.1 VOD RTSP H.265/HEVC MPEG2-TS K Cache Level viii

10 PC ix

11 1 1.1 Internet Intranet 4K 2 pixel pixel Mbps [7] CEA Consumer Electronics Show K SD(Standard Definition) HD(High Definition) VOD [5] , ,109 1

12 1.2 LAN PC Internet NTT OCN 30,000 Internet 100Kbps Mbps 4K FTTH NIC(Network Interface Card) 600Mbps VOD 600Mbps Quolity of Service 1.2 Internet High Definition Full High Definition 4K 2

13 VOD 1.3 VOD 4K CDN(Contents Delivery Network) 6 2 VOD CDN 3 4K K VOD 3

14 2 VOD VOD VOD 4 TCP/IP 2 2 CDN 2.1 VOD(Video On Demand) VOD DVD Blue-ray Disk VOD Hulu U-NEXT 10,000 87,740 VOD 2.2 VOD VOD TCP/IP 2 2 4

15 TCP(Transmission Control Protocol) TCP TCP TCP UDP(User Datagram Protocol) UDP TCP 1 / VOD UDP 2.3 IP RTP RTSP RTP(Real time Transport Protocol) RTP VOD IP UDP(User Datagram Protocol) IP SIP(Session 5

16 2.3 Initiation Protocol) RTP/UDP VOD HTTP RTP RTSP(Real Time Streaming Protocol) RTSP VOD RTSP RTSP BML 6

17 2.4 RTSP RTSP RTP RTSP 2.4 VOD TCP UDP Kbps 1,000Kbps 1 100Kbps 100Kbps 2.2 7

18 Web 8

19 PC FTP HTTP HTTP FTP 100KBps 200KBps KBps 200KBps 9

20 CDN(Content Delivery Network) IPv6 Zipf

21 Zipf PC WS

22 2.6 HBA(Host bus adapter) NIC(Network interface card) 3 CPU VOD 12

23

24 2.7 VOD CDN(Contents Delivery Network) CDN(Contents Delivery Network) HTML(Hyper Text Markup Language) CDN VOD CDN H.265/HEVC(High Efficiency Video Coding) H.265/HEVC [4] H.264/MPEG-4 AVC(Advanced Video Coding) ITU-T

25 2.7 H.264/MPG-4 AVG 2 H.265/HEVC [6] H.265/HEVC H.265/HEVC H.264/AVC 2 CABAC(Context Adaptive Binary Arithmetic Coding)

26 2.7 既存技術 図 2.8 木構造の予測ブロック分割の変換 動き検出予測の際に発生するエッジ周辺のフィルタを追加することで信号波形による歪 み (限定された帯域を持つ電子回路において入力信号が突如変更された際に生じる) を 抑制する このフィルタは歪み発生をの有無や方向を検知し フィルタの適用を動的に 適用する MPEG2-TS(Transport Stream) MPEG2-TS は画像 音声 データ放送の負荷情報 及びそれらを連携させる制御情報 をそれぞれ個別のパケットとして構成する方式である データ転送の際は多重化を前提と する 制御情報及び画像 音声等各パケットに時刻同期情報を含むため 受信したクライ アント端末で同時間軸に基づいてコンテンツの再構築を行い 再生することが可能である MPEG2-TS の構造を図 2.9 に示す MPEG2-TS には ProgramNumber でグループ化された TS パケット群が含まれる IP 放送の場合 チャネル番号を ProgramNumber と対応させることで複数のチャネルの配信 を1つの TS 配信内で多重化した後に送信する クライアント側で多重化されたチャネルを 個別に識別し再構築を行う ProgramNumber には映像や音声 制御情報を表現する TS が 含まれ PID と呼ばれるパケット識別子 ID で判別する 以下に TS の種類について記述 する 16

27 MPEG2-TS PSI(Program Specific Information) ProgramNumber TS PMT(Program Map Table) ProgramNumber TS PID CAT(Conditional Access Table) SI EIT(Event Information Table) NIT(Network Information Table) ISP(Internet Service Provider) IP [3] 17

28 2.7 VOD VOD VOD 18

29 3 4K VOD VOD 4K 4K Gigabit Ethernet 1000BASE-T 1Gbps 1 4K CDN 2 SD,HD 4K 3.1 4K 4K 1000BASE-T Ethernet 1Gbps 548Mbps 1000BASE-T 4K 19

30 3.1 4K 548Mbps BASE-T 3.1 MAC FCS byte byte IFG Inter Frame Gap 12byte 1byte MAC 6byte MAC 6byte /type 2byte FCS 4byte byte IFG SFD byte 4K BASE-T 548Mbps

31 3.2 4K 3.2 4K 4K HDTV 4 4K 3.2 HD Mpixel :9 3D International CES ITU( ) DCI(Digital Cinema Initiatives) VOD Netflix 4K 4K 3.2 4K 21

32 VOD 2 4K VOD (H.264/AVC H.265/HEVC ) 4K VOD H.265/HEVC 4K Gigabit Ethernet 1000BASE-T Mbps SD(Standard Definition) FHD(Full High Definition) 22

33 H.264/AVC H.265/HEVC SD,HD,4K 29.97, frame/sec Mbps,Gbps 4K 3.3 VOD 23

34 K 4K PC WS 4K VOD 1 CDN 2 SD HD 4K 3.5 VOD 4K 4K VOD SD HD 4K 24

35 3.5 VOD 4K 4K 25

36 4 VOD 4.1 SD HD Blu-ray Disc DVD 4.2 [1] SLA CDN SLA VOD CDN CDN 26

37 CDN CDN

38 CDN Cache Level CDN Cache Level 1 3 CDN Cache Level 4 Cache Level 4.2 Cache Level 4 Cache Level 1 4K 4.2 Cache Level 28

39 CDN CDN IP [2] 4.1 CDN IP xx.xx xx.yy xx.zz abc.avi def.avi ghi.avi SD HD 4K VOD SLA SLA SLA VOD SLA QoE(Quolity of Experience) IPTV VOD 29

40 4.2 SLA QoS QoS IPTV SLA QoS IPTV IPTV QoS QoS IPTV BML(Broadcast Markup Language) ECG(Electric Content Guide) 30

41 4.2 XML 4.2 VOD CDN CDN IPv6 n/100 n Zipf Zipf VOD 31

42 SLA BML(Broadcast Markup Language) BML HTTP SLA SLA SLA CDN

43 5 CDN 4K 5.1 CDN 4K SD HD CDN K DivXMKVMux SLA 33

44 5.3 OS BIOS 5.1 PC Windows7 Enterprise SP1 Ver RAM Intel(R) Core(TM) i7-2600k 3.40GHz 8192MB DirectX DirectX 11 NVIDIA GeForce GTX MB 37GB Intel(R) 82579V Gigabit Network Connection CDN n=4 n=4 4K Cache Level 4 CDN Cache Level DivXMKVMux 5.2 4K CDN n= , H.265/HEVC AAC(Advanced Video Codec) 2(Front: L R) 34

45 Filesize Duration 2.02GB 31s 50ms Overallbitrate Width/Height Mbps 3840/2160 pixels Display Aspect 16:9 44.1KHz DivXMKVMux 4K n=25,50, KB n= KB n=25 1 n= ,n= ,n=

46 n=25 n=50 n=75 n=100 Filesize 23.1MiB 23.1MiB 23.1MiB 23.2MiB Duration 31s 50ms 31s 50ms 31s 50ms 31s 50ms Overallbitrate 6 251Kbps 6 253Kbps 6 254Kbps 6266Kbps Time Time ratio Width/Height(pixels) 3840/ / / /2160 Display Aspect 16:9 16:9 16:9 16:9 5.4 CDN n=25,50,75,100 4K Mbps H.265/HEVC CDN Gigabit Ethernet 1000BASE-T 1Gbps 1 50 FTTH 548Mbps H.265/HEVC Kbps CDN 4 Zip CDN Cache Level 36

47 5.4 n= VOD 37

48 6 Internet High Definition Full High Definition 4K CDN SLA Zipf VOD 4K Gigabit Ethernet 1000BASE-T 1Gbps 548Mbps 4K H.265/HEVC Kbps sec 4K IP 38

49

50 [1] 4K VOD 25 p [2] VOD 23 [3] Cisco Systems, Inc, Cisco html [4] Adobe Systems, Inc, motion/pdfs/compression_primer.pdf [5] [6] NTT HEVC [7] pp

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