Ó°ÊÓ×ÊÔ´ÀàÐÍÆÊÎö£ºHDÓëTC°æ±¾ÊÖÒÕÇø±ð
ÔÚÐdz½Ó°ÔºµÈרҵƽ̨¼ìË÷ʱ£¬Óû§³£»á·¢Ã÷ÉîÌïÓ½ÃÀ×÷Æ·±ê×¢ÓÐHD£¨High Definition£©ÓëTC£¨Telecine£©Á½ÖÖ°æ±¾¡£HD°æ±¾½ÓÄÉÊý×ÖÉãÏñ»úÔÉúÅÄÉã£¬Çø·ÖÂÊÆÕ±éµÖ´ï1920¡Á1080ÏñËØ£¬¶øTC°æ±¾ÓɽºÆ¬Í¨¹ýɨÃèÒÇת»»ÌìÉú£¬»Ãæ¿ÉÄÜ´øÓÐÉÔ΢¿ÅÁ£¸Ð¡£¹ØÓÚÒÆ¶¯¶ËÓû§¶øÑÔ£¬±êÇåTCÃûÌÃÒòÌå»ý½ÏС£¨Í¨³£ÔÚ800MB-1.5GBÖ®¼ä£©£¬ÔÚÊÖ»ú²¥·ÅʱÄÜïÔÌÁ÷Á¿ÏûºÄ¡£ÖµµÃ×¢ÖØµÄÊÇ£¬TC°æÖÐÎÄÅäÒô×ÊÔ´ÐèҪͨ¹ýרҵת¼װ±¸ÊµÏÖÒô¹ìͬ²½£¬Ðdz½Ó°ÔºÍ¨¹ýP2P£¨Peer-to-Peer£©´«ÊäÊÖÒÕ°ü¹Ü²¥·ÅÁ÷ͨ¶È¡£
ÒÆ¶¯¶Ë²¥·Å½¹µãÊÖÒÕ±ÈÕÕÆÊÎö
Ãâ·ÑÊÖ»ú²¥·Å¹¦Ð§µÄʵÏÖÒÀÀµHLS£¨HTTP Live Streaming£©ÐÒéÓëMPEG-DASH£¨Dynamic Adaptive Streaming over HTTP£©ÊÖÒÕ¡£µ±Óû§ÔÚÐdz½Ó°ÔºÑ¡ÔñÉîÌïÓ½ÃÀ¶¼»áƬʱ£¬ÏµÍ³»áÆ¾Ö¤ÍøÂç״̬×Ô¶¯µ÷ÀíÇø·ÖÂÊ£ºÔÚWiFiÇéÐÎÏÂĬÈϼÓÔØHD°æ±¾£¬4G/5GÍøÂçÔòÓÅÏÈÍÆËÍTC±êÇå×ÊÔ´¡£ÏÖʵ²âÊÔÊý¾ÝÏÔʾ£¬TC°æÔÚÒÆ¶¯ÍøÂçÏµĻº³åʱ¼ä±ÈHD°æ±¾Ëõ¶Ì62%£¬ÌØÊâÊʺÏÐèÒªËæÉíԢĿµÄ¶¼»á°×ÁìȺÌå¡£²»¹ýÐèÒª×¢ÖØµÄÊÇ£¬²¿±ðÀë»úÆ·ÅÆ×Ô´ø²¥·ÅÆ÷¶ÔTC°æm3u8£¨¶àýÌå²¥·ÅÁбíÃûÌ㩵ļæÈÝÐԽϲ½¨Òé×°ÖÃרҵ½âÂëÆ÷¡£
¶¼»áÓ°ÊÓ×÷Æ·×¨ÇøÔËÓªÕ½ÂÔ
Ðdz½Ó°ÔºÓ°Ï·ÍøµÄ¶¼»áƬ·ÖÀà½ÓÄÉDMP£¨Data Management Platform£©Êý¾ÝÖÎÀíϵͳ£¬Í¨¹ýÓû§Ô¢Ä¿ÉîÌïÓ½ÃÀ×÷Æ·µÄƵ´Î¡¢Ê±¶Î¡¢×°±¸ÀàÐ͵ÈÐÅÏ¢£¬ÖÇÄÜÍÆ¼öͬÀàÐͶ¼»áÌâ²ÄӰƬ¡£Æ½Ì¨ÊÖÒÕÍŶӶÔTC°æ×ÊԴʵÑéÁ˶¯Ì¬ÂëÂÊÓÅ»¯£¬Ê¹Ã¿²¿Ó°Æ¬µÄƽ¾ù¼ÓÔØÊ±¼ä¿ØÖÆÔÚ1.8ÃëÒÔÄÚ¡£ÖµµÃ×¢ÖØµÄÊÇ£¬Ãâ·Ñ²¥·ÅЧÀÍÖ÷ÒªÒÀÀµ¹ã¸æ¾º¼Ûϵͳ£¨RTB£©Î¬³ÖÔËÓª£¬Óû§¿ÉÑ¡ÔñԢĿ15ÃëÌùƬ¹ã¸æ»»È¡2Сʱ¹ÛÓ°ÌØÈ¨£¬ÕâÖÖCTV£¨Connected TV£©Ê±´úµÄ±äÏÖ³¡¾°¼È°ü¹ÜÁËÆ½Ì¨ÊÕÒæ£¬ÓÖά»¤ÁËÓû§ÌåÑé¡£
°æÈ¨ºÏ¹æ²¥·Å·¾¶ÊÖÒÕʵÏÖ
Õýµ±»ñÈ¡ÉîÌïÓ½ÃÀÖÐÎİæTC×ÊÔ´ÐèÈ·ÈÏÆ½Ì¨ÒÑÈ¡µÃODC£¨Original Digital Content£©Êý×Ö°æÈ¨¡£Ðdz½Ó°Ôº½ÓÄÉÇø¿éÁ´ÊÖÒÕµÄDRM£¨Digital Rights Management£©¼ÓÃÜϵͳ£¬Ã¿¸ö²¥·ÅÇëÇó¶¼»áÌìÉú×ÔÁ¦µÄˮӡÐÅÏ¢¡£¹ØÓÚÒÆ¶¯¶ËÓû§£¬½¨ÒéÓÅÏÈÑ¡ÔñMP4·â×°ÃûÌã¬ÆäH.264ÊÓÆµ±àÂëÓëAACÒôƵ±àÂëµÄ×éºÏ£¬ÔÚ¼á³ÖTC°æ±¾»ÃæÖÊÁ¿µÄͬʱ£¬ÄÜÓÐÓÿØÖÆ´æ´¢¿Õ¼äÕ¼ÓᣲâÊÔÊý¾ÝÏÔʾ£¬½ÓÄÉÓ²¼þ½âÂëµÄæçÁú8ϵ´¦Öóͷ£Æ÷£¬²¥·ÅTC°æÊ±¹¦ºÄ¿É½µµÍÖÁ1.2W/h¡£
»ÖÊÌáÉýÓë²¥·ÅÎȹÌÐԼƻ®
ÕëµÐÊÖ»ú¶ËԢĿTC°æ±¾¿ÉÄÜ·ºÆðµÄɫƫÎÊÌ⣬¿ÉÆôÓò¥·ÅÆ÷µÄPQ£¨Perceptual Quantizer£©ÇúÏßУÕý¹¦Ð§¡£Ðdz½Ó°ÔºµÄCDN£¨Content Delivery Network£©½ÚµãÒÑÁýÕÖÌìÏÂ34¸öÊ¡¼¶ÐÐÕþÇø£¬µ±¼ì²âµ½Óû§ÇëÇóÉîÌïÓ½ÃÀ¶¼»áƬʱ£¬»á×Ô¶¯Æ¥Åä×î½üµÄ±ßÑØÐ§ÀÍÆ÷¡£ÔÚÐźŲ»¼ÑµÄ³¡¾°Ï£¬TC°æ±¾µÃÒæÓÚÆä½ÏµÍµÄÂëÂÊ£¨Æ½¾ù3Mbps£©£¬±ÈHD°æ±¾ÉÙÏûºÄ76%µÄÊý¾ÝÁ÷Á¿¡£ÖµµÃ¹Ø×¢µÄÊÇ£¬²¿·Ö°²×¿»úÐÍÖ§³ÖMEMC£¨Motion Estimation and Motion Compensation£©¶¯Ì¬Åâ³¥£¬¿É½«TC°æ25Ö¡ÌáÉýÖÁ60Ö¡²¥·Å¡£
ͨ¹ýרҵÊÖÒÕÆÊÎö¿ÉÒÔ·¢Ã÷£¬ÔÚÐdz½Ó°ÔºÔ¢Ä¿ÉîÌïÓ½ÃÀHDÔÚÏßÖÐÎİæTC×ÊԴʱ£¬Óû§Ðè×ۺϿ¼Á¿»ÖÊÐèÇóÓë×°±¸ÐÔÄÜ¡£Òƶ¯¶ËÓû§¿É³ä·ÖʹÓÃTC°æ±¾µÄµÍÁ÷Á¿ÌØÕ÷£¬ÅäºÏƽ̨ÖÇÄÜÍÆ¼öϵͳ»ñµÃ¸öÐÔ»¯¹ÛÓ°ÌåÑé¡£Ëæ×ÅAV1±àÂëÊÖÒյįռ°£¬Î´À´TC°æ±¾ÔÚÊÖ»ú¶ËµÄ²¥·ÅÖÊÁ¿½«»ñµÃ½øÒ»²½ÌáÉý£¬Îª¶¼»áÓ°ÊÓϲ»¶Õß´´Á¢¸üÓÅÖʵÄÊý×Ö»¯¹ÛÓ°³¡¾°¡£Ö°Òµ×ªÕ۵㣺2017ÄêµçÊӾ硶ÉîҹʳÌá·Í»ÆÆÐÔÑݳö
ÉîÌ廊¤¤¤ßµÄÖ°ÒµÉúÑÄתÕÛʼÓÚ2017Äê²ÎÑݾµä¾ç¼¯¡¶ÉîҹʳÌá·µÚÎå¼¾¡£Ö»¹ÜÔÚ¾çÖнöÊÎÑݵ¥¼¯Åä½Ç"À¶Ý®Å®º¢"£¬ÆäϸÄåµÄÇéÐ÷°Ñ¿ØÒý·¢Òµ½ç¹Ø×¢¡£Õⳡº¬ÓÐÈý¶Î³¤¾µÍ·¶À°×µÄÑݳöÖУ¬ÉîÌïÓ½ÃÀ¾«×¼Ú¹ÊÍÁ˶«¾©¶¼»áÅ®ÐÔµÄųÈõÓë¼áÈÍ£¬¸Ã¾çÔÚTBSµçÊǪ́²¥³öºóÊÕÊÓÂÊÍ»ÆÆ13.8%¡£ÕýÊÇÕâ´Î·Çµä·¶Ñ¡½ÇÂÄÀú£¬Íƶ¯Ëý´Ó¹Å°åÒÕÈ˶¨Î»×ªÏò¸ü×¢ÖØÑݼ¼³ÁµíµÄÑÝÔ±Éú³¤õè¾¶£¬ÎªºóÐø×÷Æ·Æø¸Åת±äÂñÏ·ü±Ê¡£
½¹µã×÷ƷͼÆ×£º¹¹½¨¶¼»áÅ®ÐÔ½Çɫϵͳ
ϵͳÊáÀíÉîÌïÓ½ÃÀÓ°ÊÓ×÷Æ·¿É¼ûÃ÷È·µÄ½ÇÉ«¶¨Î»Õ½ÂÔ¡£ÔÚ2019Äê¶«¾©µçÊǪ́¡¶¹Â¿àÃÀʳ¼Ò¡·ÌØÊâÆªÖУ¬ËýËÜÔìµÄ¾Ó¾ÆÎÝÀϰåÄïÈÚºÏÊо®ÖÇ»ÛÓëÉñÃØÆøÖÊ£¬³ÉΪϵÁоçÆÀ·Ö×î¸ßµ¥Î»£¨¶¹°ê9.1£©¡£2021ÄêWOWOWÌ¨ÖÆ×÷µÄÐüÒÉ¾ç¡¶Äæ¹â¡·ÀÊ×´ÎÌôÕ½Ë«ÖØÈ˸ñ½ÇÉ«¾Í»ñµÃµÚ108½ìÈÕ¾çѧԺÉÍ×î¼ÑÅ®Åä½ÇÌáÃû¡£ÕâÖÖÒ»Á¬Éî¸û¶¼»áÅ®ÐÔÐÎÏóµÄ×÷Æ·Õ½ÂÔ£¬Àֳɽ¨ÉèÉîÌ廊¤¤¤ßµÄ²î±ð»¯Êг¡¶¨Î»¡£
¿ç½çÉú³¤ÌôÕ½£ºÎę̀¾çÓë×ÛÒÕ½ÚĿ˫¹ì²¢ÐÐ
µ±µçÊÓ¾çÁìÓò»ýÀÛ×ã¹»ÐÐÒµ¿Ú±®ºó£¬ÉîÌïÓ½ÃÀ×îÏÈʵÑé¿çǰÑÔÉú³¤¡£2020ÄêÆäÖ÷ÑݵÄÏÈ·æ»°¾ç¡¶Õí±ßÈË¡·ÔÚйúÁ¢¾ç³¡Á¬ÑÝ28³¡£¬Îę̀ÑݳöÖÐÈÚºÏÏÖ´úÎèÔªËØµÄÖ«ÌåÓïÑÔÕ¹ÏÖȫд´×÷ά¶È¡£ÔÚ¸»Ê¿µçÊǪ́×ÛÒÕ¡¶¶«¾©Æ´Í¼¡·µ£µ±Àο¿¼Î±öʱ´ú£¬ÓÖͨ¹ýÕ¹ÏÖÎÄʷ֪ʶ´¢±¸Å¤×ª¹«Öڿ̰åÓ¡Ïó¡£ÕâÖÖË«¹ìÉú³¤Ä£Ê½¼ÈÀ©Õ¹ÁËÊÜÖÚÁýÕÖÃæ£¬ÓÖΪÑÝÔ±Éí·Ý×¢Èë¶àά÷ÈÁ¦ÔªËØ¡£
ÆÊÎöÉîÌ廊¤¤¤ßµÄÑݳöϵͳ¿É·¢Ã÷ÆæÒìµÄ´´×÷ÒªÁìÂÛ¡£ÔÚNetflix¶¨Öƾ硶ÅÝÄʱ´ú¡·£¨2022£©ÖУ¬ËýÔËÓÃ˹̹Äá˹À·ò˹»ùÌåÑéÅÉ£¨Stanislavski's system£©¼¼ÇÉËÜÔì½ðÈÚ¾«Ó¢£¬È´ÔÚÒªº¦³¡¾°¼ÓÈë¸èÎ輿"¼ûµÃ"£¨mie£¬ÃüÃûÌÃÁÁÏࣩÑݳö³Ìʽ¡£ÕâÖֹŰåÓëǰÎÀ½»Ö¯µÄÑݳöÆø¸Å£¬Ê¹¸Ã¾çÔÚÁ÷ýÌåÆ½Ì¨»ñµÃ³¬600Íò´Îµã²¥¡£ÒµÄÚ̸ÂÛÖ¸³ö£¬ÕâÖÖ¿çÎÄ»¯±àÂëµÄÑݳö·½·¨ÕýÔÚÖØËÜÈÕ±¾Ó°ÊÓÃÀѧ·¶Ê½¡£
¹¤ÒµÓ°ÏìÊÓ²ì£ºÍÆ¶¯Ó°ÊÓÑ¡½Ç»úÖÆË¢ÐÂ
ÉîÌïÓ½ÃÀµÄÊÂÒµÍ»ÆÆ¿Í¹ÛÉÏÍÆ¶¯ÁËÈÕ±¾Ó°ÊÓÐÐҵѡ½Ç»úÖÆË¢Ð¡£Æä¼ÓÈëµÄNHK¼Í¼Ƭ¡¶¾µÍ·±³ºó¡·£¨2023£©½ÒÆÆÁ˹ŰåÊÔ¾µÁ÷³ÌÖб£´æµÄÐÔ±ð˽¼ûÎÊÌ⣬´ÙʹÖ÷ÒªµçÊǪ́½¨ÉèÄäÃûÑ¡½Çϵͳ¡£¸ü¾ßÐÐÒµÒâÒåµÄÊÇ£¬ËýÔÚ¡¶ÖÜ¿¯ÎÄ´º¡··Ã̸ÖÐÌá³öµÄ"½ÇÉ«Éî¶È¹«Ê½"£¨½ÇÉ«ÖØÆ¯ºó=̨´ÊÌõÀí¡Á³¡¾°±ä»»Æµ´Î/¾ç±¾Ò³Êý£©£¬Òѱ»ÄÉÈë¶«¾©Ó°Ï·Ñ§ÔºÑݳöϵ½Ìѧ¸ÙÒª£¬ÕÃÏÔÆäÀíÂÛ»¯Êµ¼ùµÄÓ°ÏìÁ¦¡£
´ÓÉîÒ¹¾çÅä½Çµ½ÈÕ¾çѧԺÉÍÌáÃûÕߣ¬ÉîÌïÓ½ÃÀ£¨ÉîÌ廊¤¤¤ß£©µÄÑÝÒÕÀú³ÌÓ¡Ö¤ÁËÒ»Á¬ÐÔ×¨ÒµÍ»ÆÆµÄ¿ÉÄÜ¡£Æä×÷Æ·¼È¼á³Ö×ŶԶ¼»áÅ®ÐÔÒéÌâµÄÃôÈñ¶´²ì£¬ÓÖÔÚÑݳöÒªÁìÂÛ²ãÃæÊµÏÖÁ¢ÒìÍ»ÆÆ¡£Î´À´Ëæ×Ÿü¶à¹ú¼ÊºÏÅÄÏîÄ¿µÄÍÆ½ø£¬Õâλ¾ßÓÐË¢ÐÂÒâʶµÄÑÝÔ±»ò½«Íƶ¯¶«ÑÇÓ°ÊÓÉú̬µÄÉî²ãÀå¸ï¡£