锘??xml version="1.0" encoding="utf-8" standalone="yes"?> EMU 鏄嫳鏂嘐mulator鐨勭緝鍐欙紝鎰忔濇槸浠跨湡鍣紝鍦ㄥ崼鏄熸帴鏀墮鍩熸寚浣跨敤紜歡鎴栬蔣浠舵ā鎷熸湁鏉′歡鎺ユ敹璁よ瘉鐜妭鐨勭幆澧?/p>
EMM 鑻辨枃涓猴細(xì)Entitlement Management Message錛屽畠鐨勪腑鏂囧惈涔変負(fù)“鎺堟潈綆$悊淇℃伅”錛岄氫織璇村氨鏄?#8220;涓庢洿鏀規(guī)敹瑙嗗崱鍐呭鏈夊叧鐨勭鐞嗕俊鎭?#8221;銆?EMM鍚湁瑕佹眰鏀惰鍗℃洿鏀規(guī)暟 鎹墍闇鐨勫瓙鍛戒護(hù)鍜屾暟鎹俊鎭?涓哄鎶楃牬瑙o紝榪欎簺淇℃伅閲囩敤浜?jiǎn)澶嶆潅鐨勬栆?guī)硶榪涜浜?jiǎn)鍔犲瘑銆?/p>
Hops 閾捐礬鏁扮洰 CA 鏈夋潯浠舵帴鏀剁郴緇熴傚父鐢–A鏈夌憺澹玁agravision,鑻卞浗NDS銆佹硶鍥紺anal+涓嶸iacess銆佽嵎鍏癢orkcrypt涓嶪rdeto絳夛紱鍥藉唴鏈夋竻鍗庡悓鏂廣佺畻閫氱瓑 CAID 鏈夋潯浠舵帴鏀剁郴緇熸爣璇?閫氫織鐨勮灝辨槸鍔犲瘑緋葷粺鍟嗙殑浠e彿 EMMG EMM鍙戠敓鍣紝浜х敓閽堝鐢ㄦ埛鐨勪俊鎭疎MM錛堜篃縐癊淇℃伅錛夈傚叾鎺堜簣鐢ㄦ埛浣曟椂鑳芥敹鐪嬩綍鑺傜洰鐨勬潈闄愶紝鏄敤鎴鋒敹瑙嗘潈綆$悊鐨勪竴涓噸瑕侀儴鍒嗐備負(fù)闃叉EMM淇℃伅琚牬璇戯紝涓浜涢噸瑕佺殑EMM闇鍔犲瘑鍚庝紶閫侊紝鐢ㄦ埛绔繀欏昏В瀵嗗悗鎵嶅彲浣跨敤銆?/p>
PPUA CW Control wold 鎺у埗瀛?/p>
PID 鍒嗙粍璇嗗埆絎?/p>
EPG 鐢?shù)瀛愯妭鐩棄櫁磋?/p>
KEY 縐樺寵 Procotol 閫氳鍗忚 ZAP 緇忓父鏉ュ洖鍒囨崲鐨勪竴緇勯閬?/p>
Frequency 杞彂鍣ㄤ笅琛岄鐜?/p>
FEC 鍓嶅悜綰犻敊姣?/p>
Bouquets 鍦―reamBox涓槸鎸囩敤鎴瘋嚜宸卞畾涔夌殑涓緇勮妭鐩殑闆嗗悎,渚嬪浣撹偛鑺傜洰棰戦亾 sports ,鐢?shù)濯?jiǎng)鑺傜洰棰戦亾 movies,渚夸簬鍒嗙被鏌ュ棰戦亾銆?/p>
POL Polarisation LNB 鏋佸寲鏂瑰紡 SatcoDX 鍗槦鏁版嵁淇℃伅鐨勪竴縐嶅崗璁?鍖呭惈鍗槦緇忓害錛岃漿鍙戝櫒鏁版嵁絳夊嚑涔庢墍鏈夌殑淇℃伅錛屽彲浠ヤ笌鎺ユ敹鏈洪氳鑷姩鏇存柊榪欎簺淇℃伅. SymbolRate 絎︾爜鐜?/p>
service 鍦ㄥ崼鏄熼鍩熶竴鑸寚棰戦亾鎴栬呴閬撶殑鎻愪緵鍟?/p>
TID 杞彂鍣↖D VID 瑙嗛ID 鏁板瓧鐢?shù)瑙嗕笌浼牼l熸ā鎷熺數(shù)瑙嗚妭鐩夋嫨鐨勬柟寮忓畬鍏ㄤ笉鍚岋紝 浼犵粺鐢?shù)瑙嗙殑姣忎竴涓閬撳搴斾竴涓妭鐩紝鍙璋冨埌鐩稿簲鐨勯鐜囷紝 灝卞彲浠ョ湅鍒拌妭鐩?鑰屽湪鏁板瓧鐢?shù)瑙嗕俊鍙蜂腑锛屼竴璺爜嫻佸搴斿璺妭鐩紝浣跨敤澶嶇敤鎶鏈氨鍙互鍋氬埌浜?jiǎn)銆備竴涓墿鐞嗙殑棰戦亾鍙兘緇欏嚭鍖呭惈澶氳礬鑺傜洰鐨勪竴璺紶杈撴祦銆傝瑙傜湅鍏朵腑鐨勬煇涓璺妭鐩紝榪樺繀 欏諱粠璇ヤ紶杈撴祦涓彁鍙栧嚭璇ヨ礬鑺傜洰鐨勫帇緙╁寘錛岀劧鍚庡啀榪涜瑙g爜銆?鎵浠ユ庢牱浠庝紬澶氱殑浼犺緭嫻佷腑錛岄変腑涓璺妭鐩挱鏀撅紝灝卞彉寰楀緢澶嶆潅銆傚湪mpeg-2鐨勪紶杈撴祦(Transport Stream)涓紝鑺傜洰涓撶敤淇℃伅PSI錛圥rogram Specific Information錛夛紝灝辨槸瑙勫畾涓嶅悓鑺傜洰鍜岃妭鐩腑鐨勪笉鍚屾垚鍒嗗浣曞鐢ㄦ垚涓涓粺涓鐨勭爜嫻併備互PSI涓哄熀紜鍙互鎻愪緵涓涓爜嫻佺殑鏋勬垚錛屼粠鑰屽府鍔╃敤鎴峰鑺傜洰榪?琛岄夋嫨銆侱VB涓殑鏈嶅姟淇℃伅SI(Service Information)鍒欏姝よ繘琛屼簡(jiǎn)榪涗竴姝ョ殑鎵╁睍錛屽姞鍏ヤ簡(jiǎn)涓浜涘鐢ㄦ埛鏈夌敤鐨勪俊鎭紝鏍囩ず鑺傜洰鐨勭被鍨嬶紝鏈嶅姟鍟嗭紝鑺傜洰鐨勭浉浜掑叧緋葷瓑銆傛紜殑浜?jiǎn)瑙peg-2鐨?PSI浠ュ強(qiáng)DVB鐨凷I鐨勭粨鏋勶紝鍙?qiáng)鍏跺湪鑺傜洰缁劸l囷紝閫夋嫨涓殑搴旂敤錛屽彲浠ユ紜悊瑙ervice information鍦―VB瑙g爜涓殑鍦頒綅銆傚浜庢垜浠仛濂藉鏁板瓧鑺傜洰鐨勫鐢紝涔熻兘璧峰埌甯姪浣滅敤銆?/p>
TableID琛ㄥ涓嬶細(xì) 閭d箞錛屾垜浠浣曡繍鐢―VB涓殑SI 淇℃伅琛ㄥ憿錛?br> 4. EIT 淇℃伅 e銆佸湪鍚屼竴鏃跺埢錛屾渶澶氭湁涓涓猣ollowing event銆?br>f銆佸鏋渇ollowing event瀛樺湪錛岃浜嬩歡搴斿綋鍦‥IT Present/Following鐨剆ection1涓?br>g銆佸鏋渇ollowing event涓嶅瓨鍦紝鍒欎紶杈撲竴涓猻ection1涓虹┖鐨凟IT Present/Following銆?br>h銆乫ollowing event鐨剅unning_status搴斿綋緇欏嚭錛屽涓嬭〃錛?/p>
浜嬩歡鐨勬寔緇椂闂村拰EIT鎸佺畫鏃墮棿涓鏍鳳紝蹇呴』鍖呭惈浜嬩歡琚疆涓?#8220;not running”鎴栬?#8220;pausing”銆備簨浠剁殑寮濮嬫椂闂村拰EIT start_time涓鏍鳳紝搴斿綋鏄暣涓簨浠剁殑寮濮嬫椂闂達(dá)紝鑰屼笉鏄粠pause鎭㈠鍚庣殑鏃墮棿銆?br>娉?鎰忥細(xì)涓涓簨浠剁殑寮濮嬫椂闂村姞涓婂畠鐨勬寔緇椂闂村彲鑳芥瘮following event鐨勫紑濮嬫椂闂磋灝忋傛崲鍙ヨ瘽璇達(dá)紝鍏佽浜嬩歡涔嬮棿鏈夐棿闅斻傚湪榪欑鎯呭喌涓嬶紝following event琚湅浣滄槸闂撮殧鍚庣殑浜嬩歡銆傝繖涓簨浠跺簲褰撶紪鍦‥IT Present/Following鐨剆ection1涓?br>娉ㄦ剰錛氬紑濮嬫椂闂村拰鎸佺畫鏃墮棿閮芥槸棰勫畾鐨勩備竴浜涘箍鎾湇鍔℃彁渚涘晢鍙兘浼?xì)鏇存柊杩欎簺淇℃伅銆傝屽彟涓浜涘垯鏇存効鎰忎繚鎸佸紑濮嬫椂闂翠笉鍙樸備緥濡備負(fù)浜?jiǎn)閬垮厤鍚嶄?#8220;8鐐規(guī)柊闂?#8221;鐨勪簨浠惰璇В錛屾妸淇℃伅涓殑寮濮嬫椂闂翠粠8錛?1錛?3鏀逛負(fù)8錛?0錛?0銆?br> 鐩墠鍥介檯涓婃暟瀛楅珮娓呮櫚搴︾數(shù)瑙嗕紶杈撶郴緇熶腑閲囩敤鐨勮皟鍒舵妧鏈富瑕佹湁錛氬洓鐩哥Щ鐩擱敭鎺э紙QPSK錛夈佸鐢?shù)邈^姝d氦騫呭害璋冨埗錛圡QAM錛夈佸鐢?shù)邈^孌嬬暀杈瑰甫 璋冨埗錛圡VSB錛夊拰姝d氦棰戝垎澶嶇敤璋冨埗錛圤FDM錛夈傚湪鏈夌嚎鐢?shù)瑙嗕腑涓昏閲囩敤MQAM璋冨埗鏂瑰紡銆俀AM璋冨埗鏄竴縐嶈妭鐪侀甯︾殑鏁板瓧璋冨箙鏂規(guī)硶錛?6QAM鐨勯璋卞埄 鐢ㄧ巼涓?(bit/s)/Hz,64QAM鐨勯璋卞埄鐢ㄧ巼涓?(bit/s)/Hz錛夛紝鏈夎緝楂樼殑淇″櫔姣斻俀AM璋冨埗鏂規(guī)硶鍦?400bit/s浠ヤ笂鐨勪腑銆侀珮閫?璋冨埗涓父琚噰鐢紝騫挎硾搴旂敤浜庢湁綰跨數(shù)瑙嗙殑涓嬭浼犺緭鍙?qiáng)HDTV鐨勫湴闈㈠箍鎾紶杈撲腑銆?/p>
鍔犺В鎵版妧鏈敤浜庡鏁板瓧鑺傜洰榪涜鍔犲瘑瑙e瘑錛屽叾鍩烘湰鍘熺悊鏄噰鐢ㄥ姞鎵版帶鍒跺瓧鍔犲瘑浼犺緭鐨勬柟娉曪紝鐢ㄦ埛绔埄鐢↖C鍗¤В瀵嗐傚湪MPEG浼犺緭嫻佷腑錛屼笌鎺у埗瀛椾紶杈撶浉鍏崇殑鏈変袱 涓暟鎹祦錛氭巿鏉冩帶鍒朵俊鎭紙ECMs錛夊拰鎺堟潈綆$悊淇℃伅錛圗MMs錛夛紝鐢變笟鍔″瘑閽ワ紙SK錛夊姞瀵嗗鐞嗗悗鐨勬帶鍒跺瓧鍦‥CMs涓紶閫侊紝鍏朵腑榪樺寘鎷妭鐩潵婧愩佹椂闂淬佸唴 瀹瑰垎綾誨拰鑺傜洰浠鋒牸絳夎妭鐩俊鎭傚鎺у埗瀛楀姞瀵嗙殑涓氬姟瀵嗛挜鍦ㄦ巿鏉冪鐞嗕腑浼犻侊紝涓斾笟鍔″瘑閽ュ湪浼犻佸墠瑕佺粡榪囩敤鎴蜂釜浜哄垎閰嶅瘑閽ワ紙PDK錛夌殑鍔犲瘑澶勭悊錛孍MMs涓繕鍖?鎷湴鍧鍜岀敤鎴鋒巿鏉冧俊鎭紝濡傜敤鎴峰彲浠ョ湅鐨勮妭鐩垨鏃墮棿孌碉紝鐢ㄦ埛浠樼殑鏀惰璐圭瓑銆傜敤鎴蜂釜浜哄垎閰嶅瘑閽ワ紙PDK錛夊瓨鏀懼湪鐢ㄦ埛鐨勬櫤鑳藉崱錛圫martCard錛変腑銆傚湪鐢ㄦ埛 绔紝鏈洪《鐩掓牴鎹甈MT鍜孋AT琛ㄤ腑鐨凜A descriptor錛岃幏寰桬MM鍜孍CM鐨凱ID鍊鹼紝鐒跺悗錛屼粠TS嫻佷腑榪囨護(hù)鍑篍CMs鍜孍MMs錛屽茍閫氳繃 SmartCard鎺ュ彛閫佺粰SmartCard銆係mart Card棣栧厛璇誨彇鐢ㄦ埛涓漢鍒嗛厤瀵嗛挜錛圥DK錛夛紝鐢≒DK瀵笶MM瑙e瘑錛屽彇鍑篠K錛岀劧鍚庡埄鐢⊿K瀵笶CM榪涜瑙e瘑錛屽彇鍑篊W錛屽茍灝咰W閫氳繃Smart Card鎺ュ彛閫佺粰瑙f壈寮曟搸錛岃В鎵板紩鎿庡埄鐢–W灝卞彲浠ュ皢鎵扮殑浼犺緭嫻佽繘琛岃В鎵般傚姞瑙f壈鎶鏈垎涓哄悓瀵嗗拰澶氬瘑鎶鏈?/p>
鍚屽瘑鎶鏈槸灝嗕袱瀹舵垨涓ゅ浠ヤ笂鐨勬潯浠舵帴鏀訛紙CA錛夌郴緇熷簲鐢ㄤ簬鍚屼竴緗戠粶騫沖彴涔嬩腑錛屽鏈夌嚎鐢?shù)瑙嗗彴鏉ヨ鏄疄鐜版妧鏈殑閫夋嫨鍜屼竴縐嶇珵浜夌殑鐜銆?/p>
澶氬瘑鎶鏈姹傛満欏剁洅閲囩敤CI鎶鏈紝瀹炵幇鍚屼竴鏈洪《鐩掑彲鎺ユ敹涓嶅悓CA緋葷粺鍔犲瘑鑺傜洰銆備粠鐢ㄦ埛瑙掑害鏉ヨ錛屼笉浼?xì)鍥犺喘涔板摢涓瀹禖A鐨勬満欏剁洅鑰屽彈鍒伴檺鍒訛紝鐢ㄦ埛榪樻湁閫夋嫨鍏禖A鏈嶅姟鐨勫彲鑳芥с?/p>
鏁翠釜澶嶇敤榪囩▼鍙互鎻忚堪涓?涓笉鍚屽眰嬈$殑澶嶇敤銆?/p>
·鑺傜洰灞傚鐢細(xì)瑙嗛嫻併侀煶棰戞祦鍜岃祫鏂欐祦閫氳繃澶嶇敤鍣ㄥ鐢ㄦ垚涓涓妭鐩殑浼犻佹瘮鐗規(guī)祦銆?/p>
·緋葷粺灞傚鐢細(xì)澶氫釜鑺傜洰鐨勪紶閫佷綅嫻侀氳繃澶嶇敤鍣ㄥ鐢ㄦ垚緋葷粺姣旂壒嫻併?/p>
閫氳繃榪欎袱綰у鐢ㄦ墍鐢熸垚鐨勯兘鏄爣鍑嗙殑MPEG-2鐨凾S鐮佹祦銆?/p>
瑙e鐢ㄥ崟鍏冪敱涓撶敤澶勭悊鍣ㄦ瀯鎴愶紝璐熻矗瀵筂PEG-2鐨凾S嫻佸拰鎴愬寘鍩烘湰鐮佹祦錛圥ES錛夎繘琛岃В鏋愶紝鎭㈠闊寵棰戣В鐮佸櫒鎵闇鐨勭爜嫻侊紝鍚屾椂璐熻矗瀵逛紶杈撻敊璇繘琛屾爣璇嗐?浼犻佺郴緇熶嬌鐢ㄤ簡(jiǎn)MPEG-2瀹氫箟鐨勫浐瀹氶暱搴︿負(fù)188涓瓧鑺傜殑浼犺緭嫻佸垎緇勬柟寮忥紝榪欎簺鍒嗙粍鏄氳繃鍒嗙粍澶翠腑鐨勫垎緇勬爣璇嗭紙PID錛夋潵璇嗗埆瑙嗛銆侀煶棰戞垨鏁版嵁淇℃伅銆備紶 杈撴祦涓寘鍚竴涓垨澶氫釜鑺傜洰錛屾瘡涓妭鐩槸鐢變竴涓垨澶氫釜澶嶇敤鍦ㄤ竴璧風(fēng)殑鍩烘湰鐮佹祦鏋勬垚鐨勩傚湪鍗曡礬鑺傜洰浼犻佸鐢ㄦ椂錛岀粍鎴愯妭鐩殑浼犻佺爜嫻佺殑PID淇℃伅銆佺爜嫻佷腑浼犺緭鐨勫簲 鐢紙濡傞煶棰戙佽棰戠瓑錛夋爣紺虹浠ュ強(qiáng)榪欎簺鐮佹祦涔嬮棿鐨勫叧緋葷瓑錛岀敱鑺傜洰鏄犲皠琛紙PMT錛夋潵琛ㄧず銆傚寘鍚玃MT鐨勭爜嫻佺殑PID鍙風(fēng)敱鍦ㄨ妭鐩郴緇熷鐢ㄦ椂瀹氫箟鐨凱ID=0鐨?緋葷粺綰ф帶鍒剁爜嫻佹墍鎼哄甫鐨勮妭鐩叧鑱旇〃錛圥AT錛夋潵緇欏嚭銆侾MT鍜孭AT閮芥槸灞炰簬鍖呭惈鑺傜洰鍙?qiáng)绯痪l熶俊鎭殑鑺傜洰鐗瑰畾淇℃伅錛圥SI錛夌殑涓閮ㄥ垎銆傝В澶嶇敤鍣ㄥ埄鐢≒ID= 0鐨勮妭鐩叧鑱旇〃錛圥AT錛夎瘑鍒嚭鎼哄甫鎵闇鑺傜洰鏄犲皠琛紙PMT錛夌殑姣旂壒嫻佺殑PID錛岀劧鍚庝粠鑺傜洰鏄犲皠琛紙PMT錛変腑鑾峰緱鏋勬垚鑺傜洰鐨勫熀鏈爜嫻佺殑PID鍙鳳紝閫氳繃璁?緗В澶嶇敤鍣ㄤ腑鐨勮繃婊ゅ櫒錛屾潵鎺ユ敹鎵闇鑺傜洰鐨勪紶閫佺爜嫻併傞煶瑙嗛鍩烘湰鐮佹祦鍦ㄤ紶閫佸眰涓槸浠ュ垎緇勭殑鍩烘湰嫻侊紙PES錛夌殑褰㈠紡浼犻佺殑錛屽鎵閫夎妭鐩繘琛孭ES瑙e寘鍚庣殑鍘嬬緝 闊抽銆佽棰戞祦鏁版嵁浜ら侀煶棰戝拰瑙嗛瑙g爜鍗曞厓澶勭悊銆?/p>
ECM 鍏跺叏縐頒負(fù)Entitlement Control Message(鎺堟潈鎺у埗淇℃伅)錛屽叾鎰忔濆氨鏄?#8220;涓庢潯浠舵敹瑙嗭紙CA錛夋湁鍏崇殑鎺у埗淇℃伅”銆?/p>
AU Auto update, 鑷姩鍗囩駭鎺堟潈淇℃伅
SID 棰戦亾欏哄簭緙栧彿
PID 棰戦亾鍖呭惈鐨勫悇縐嶆暟鎹甀D,鍖呮嫭浠ヤ笅鍐呭錛?/p>
AUD 闊抽ID
PMT 鑺傜洰鏄犲皠琛?br>PCR
CAID 鍔犲瘑緋葷粺浠g爜4瀛楄妭
ECM
EMM
PRV 鍔犲瘑緋葷粺鐨勪唬鐮?涓瓧鑺?br>TTX 闄勫姞鐨勬枃鏈俊鎭?br>AC3 AC# 鏁板瓧闊抽ID
浼犺緭嫻佺殑鍖呴暱涓哄浐瀹氱殑188涓瓧鑺傦紝鍖呭惈TS澶淬侀傞厤鍩熷拰鍑鑽鋒暟鎹俆S澶存槸鐢卞悓姝ュ瓧鑺傘佹爣蹇楁瘮鐗廣佹寚紺烘瘮鐗廣丳ID鍔犱笂鍏朵粬璇稿 綰犻敊鐨勫畾鏃剁殑淇℃伅緇勬垚鐨勩傚叾涓璓ID鐢ㄤ簬鍖哄埆涓嶅悓鐨勬祦鍜屼笉鍚岀殑鑺傜洰鐗瑰畾淇℃伅錛圥SI錛夈備竴鍏辨湁浜旂涓嶅悓鐨凱SI錛氳妭鐩叧鑱旇〃錛圥AT錛夛紝鑺傜洰鏄犲皠琛?錛圥MT錛?緗戠粶淇℃伅琛紙NIT錛?鏉′歡鎺ユ敹琛紙CAT錛?鏁板瓧瀛樺偍濯掍綋鍛戒護(hù)涓庢帶鍒訛紙DSM-CC錛夈?/p>
浜屻丮PEG-2 TS涓殑PSI
PSI淇℃伅涓昏鍖呮嫭浠ヤ笅鐨勮〃錛?br> PAT錛圥rogram Association Table錛夛細(xì)鑺傜洰緹や笡琛紝璇ヨ〃鐨凱ID鏄浐瀹氱殑0x0000錛屽畠鐨勪富瑕佷綔鐢ㄦ槸鎸囧嚭璇ヤ紶杈撴祦ID錛屼互鍙?qiáng)璇ヨ矾浼犺緭娴佷腑鎵瀵瑰簲鐨勫嚑璺妭鐩祦鐨?MAP 琛ㄥ拰緗戠粶淇℃伅琛ㄧ殑PID銆?br> PMT錛圥rogram Map Table錛夛細(xì)鑺傜洰鏄犲皠琛紝璇ヨ〃鐨凱ID鏄敱PAT鎻愪緵緇欏嚭鐨勩傞氳繃璇ヨ〃鍙互寰楀埌涓璺妭鐩腑鍖呭惈鐨勪俊鎭紝渚嬪錛岃璺妭鐩敱鍝簺嫻佹瀯鎴愬拰榪欎簺嫻佺殑綾誨瀷錛堣 棰戯紝闊抽錛屾暟鎹級(jí)錛屾寚瀹氳妭鐩腑鍚勬祦瀵瑰簲鐨凱ID錛屼互鍙?qiáng)璇ヨ妭鐩殑PCR鎵瀵瑰簲鐨凱ID銆?br> NIT錛圢etwork Information Table錛夛細(xì)緗戠粶淇℃伅琛紝璇ヨ〃鐨凱ID鏄敱PAT鎻愪緵緇欏嚭鐨勩侼IT鐨勪綔鐢ㄤ富瑕佹槸瀵瑰璺紶杈撴祦鐨勮瘑鍒紝NIT鎻愪緵澶氳礬浼犺緭嫻侊紝鐗╃悊緗戠粶鍙?qiáng)缃懢l滀紶杈撶殑鐩稿叧 鐨勪竴浜涗俊鎭紝濡傜敤浜庤皟璋愮殑棰戠巼淇℃伅浠ュ強(qiáng)緙栫爜鏂瑰紡銆傝皟鍒舵柟寮忕瓑鍙傛暟鏂歸潰鐨勪俊鎭?br> CAT錛圕onditional Access Table錛夛細(xì)鏉′歡璁塊棶琛紝PID 錛?0x0001銆?br>闄や簡(jiǎn)涓婅堪鐨勫嚑縐嶈〃澶栵紝mpeg-2榪樻彁渚涗簡(jiǎn)縐佹湁瀛楁錛岀敤浜庡疄鐜板MPEG-2鐨勬墿鍏呫?br>
涓夈丏VB涓殑SI
Mpeg-2鐨凱SI涓彁渚涗簡(jiǎn)涓嶅皯鐨勭浉鍏寵妭鐩粍鎴愬拰鐩鎬簰鍏崇郴鐨勪俊鎭紝浠庤屼嬌寰楀湪鎺ユ敹绔彲浠ユ紜殑瀵瑰璺紶杈撴祦榪涜鍒嗚В銆備絾鏄繖浜涗俊鎭湪瀹為檯浣跨敤鏃朵粛鏄懼緱涓嶅錛屼負(fù)姝ゅ湪DVB涓噰鐢⊿I瀵筆SI淇℃伅榪涜浜?jiǎn)杩涗竴姝ョ殑鎵╁睍銆傞櫎浜?jiǎn)鍦≒SI涓殑淇℃伅涔嬪錛孌VB榪樺畾涔変簡(jiǎn)涓浜涘叾浠栫殑涓浜涜〃銆?br>SI鐨勪富瑕佺敤閫旀湁錛?br>a銆佹牴鎹甆IT錛孭AT錛孭MT絳変俊鎭彲浠ヨ繘琛岃嚜鍔ㄧ殑棰戦亾璋冭皭錛?br>b銆佹洿鏂逛究鐨勫鑺傜洰榪涜閫夋嫨鍜屽畾浣嶏紱
c銆佸疄鐜扮數(shù)瀛愯妭鐩寚鍗桬PG(Electronic Program Guide)錛岀瓑絳夈?br>
PSI涓殑淇℃伅鍩烘湰涓婇兘鏄笌褰撳墠鐮佹祦鐩稿叧鐨勶紝鍗沖畠浠墍娑夊強(qiáng)鐨勫唴瀹歸兘涓庡綋鍓嶇爜嫻佷腑鐨勯儴鍒嗕俊鎭浉鍏熾備笌PSI涓嶅悓鐨勬槸錛孲I鐨勪俊鎭彲浠ュ寘鎷笉鍦ㄥ綋鍓嶇爜嫻佷腑鐨勪竴浜涙湇鍔″拰浜嬩歡錛屽厑璁哥敤鎴瘋繘琛屾洿澶氱殑閫夋嫨鍜屼簡(jiǎn)瑙f洿澶氱殑鍏朵粬鏈嶅姟淇℃伅銆?br>
DVB瑙勫畾鎼哄甫SI淇℃伅鐨勪紶杈撳寘蹇呴』鐢ㄦ寚瀹氱殑PID錛屾寚瀹氱殑PID濡備笅琛細(xì)
TABLE TYPE PID Value
PAT 0X0000
CAT 0X0001
TSDT 0X0002
RESERVED 0X0003 TO 0X000F
NIT錛孲T 0X0010
SDT錛孊AT錛孲T 0X0011
EIT錛孲T 0X0012
RST錛孲T 0X0013
TDT錛孴OT錛孲T 0X0014
Network Synchroniztion 0X0015
Reserved for future use 0X0016 TO 0X001B
Inband signaling 0X001C
Measurement 0X001D
DIT 0X001E
SIT 0X001F
鍦ㄨ琛ㄤ腑鍙互鐪嬪埌鍚屼竴涓狿ID鍙互瀵瑰簲涓嶅悓鐨勮〃錛岃鎶婅繖鏍風(fēng)殑琛ㄥ尯鍒嗗紑鏉ワ紝闇瑕佽繘涓姝ユ壘鍒癟ableID 榪涜璇嗗埆銆?/font>
Value Description
0x00 Program_association_section
0x01 Conditional_access_section
0x02 Program_map_section
0x03 Transport_stream_description_section
0x04 TO 0x3F Reserved
0x40 Network_information_section-actual_network
0x41 Network_information_section-other_network
0x42 Service_description_section-actual_transport_stream
0x43 TO 0x45 Reserved for future use
0x46 Service_description_section-other_transport_stream
0x47 TO 0x49 Reserved for future use
0x4A Bouquet_association_section
0x4B TO 0x4D Reserved for future use
0x4E Event_information_section-actual_transport_stream,P/F
0x4F Event_information_section-other_transport_stream,P/F
0x50 TO 0x5F Event_information_section-actual_transport_stream,schedule
0x60 TO 0x6F Event_information_section-other_transport_stream,schedule
0x70 Time_data_section
0x71 Running_status_section
0x72 Stuffing_section
0x73 Time_offset_section
0x74 TO 0x7D Reserved for future use
0x7E Discontinuity_information_section
0x7F Selection_information_section
0x80 TO 0xFE User defined
0xFF Reserved
鏈変簡(jiǎn)榪欎袱涓狪D鎴戜滑鍙互鍦ㄧ爜嫻佷腑鎵懼埌鎴戜滑鎯寵鐨勪換浣曚竴寮犺〃銆?br>
SI涓昏鍖呮嫭浠ヤ笅涓浜涗俊鎭〃錛?br>
NIT錛圢etwork Information Table錛夛細(xì)NIT鐨勪綔鐢ㄤ富瑕佹槸瀵瑰璺紶杈撴祦鐨勮瘑鍒紝NIT鎻愪緵澶氳礬浼犺緭嫻侊紝鐗╃悊緗戠粶鍙?qiáng)缃懢l滀紶杈撶殑鐩稿叧鐨勪竴浜涗俊鎭紝濡傜敤浜庤皟璋愮殑棰戠巼淇℃伅浠ュ強(qiáng)緙栫爜鏂瑰紡銆傝皟鍒舵柟寮忕瓑鍙傛暟鏂歸潰鐨勪俊鎭傛牴鎹淇℃伅璁劇疆IRD錛圛ntegrated Receiver Decoder錛夊彲浠ヨ繘琛屽璺紶杈撴祦涔嬮棿鐨勫垏鎹€?
SDT錛圫ervice Description Table錛夛細(xì)鐢ㄤ簬鎻忚堪緋葷粺涓悇璺妭鐩殑鍚嶇О錛岃鑺傜洰鐨勬彁渚涜咃紝鏄惁鏈夌浉搴旂殑鏃墮棿鎻忚堪琛ㄧ瓑鏂歸潰鐨勪俊鎭傝琛ㄥ彲浠ユ弿榪板綋鍓嶄紶杈撴祦錛屼篃鍙互鎻忚堪鍏朵粬鐨勪紶杈撴祦錛岃繖鐢盩ableID榪涜鍖哄垎銆?br>EIT錛圗vent Information Table錛夛細(xì)璇ヨ〃紺哄鏌愪竴璺妭鐩殑鏇磋繘涓姝ョ殑鎻忚堪銆傚畠鎻愪緵浜嬩歡鐨勭殑鍚嶇О錛屽紑濮嬫椂闂達(dá)紝鏃墮棿闀垮害錛岃繍琛岀姸鎬佺瓑銆?br>TDT錛圱ime and Data Table錛夛細(xì)璇ヨ〃鎻愪緵褰撳墠鐨勬椂闂翠俊鎭紝璇ヨ〃鐢ㄦ潵瀵笽RD鐨勮В鐮佹椂閽熻繘琛屾洿鏂?br>BAT錛圔ouquet Association Table錛夛細(xì)璇ヨ〃鎻愪緵涓緋誨垪綾諱技鑺傜洰鐨勯泦鍚堛傝繖浜涜妭鐩彲浠ヤ笉鍦ㄥ悓涓涓紶杈撴祦涓紝鍒╃敤璇ヨ〃鍙互寰堟柟渚跨殑榪涜鐩稿叧鑺傜洰鎴栨煇涓綾昏妭鐩殑嫻忚鍜岄夋嫨銆?br>RST錛圧unning Status Table錛夛細(xì)璇ヨ〃鎻愪緵鏌愪竴鍏蜂綋浜嬩歡鐨勭殑榪愯鐘舵侊紝鍙敤浜庢寜鏃惰嚜鍔ㄧ殑鍒囨崲鍒版寚瀹氱殑浜嬩歡
TOT錛圱ime Offset Table錛夛細(xì)璇ヨ〃鎻愪緵褰撳湴鏃墮棿涓嶵DT涔嬮棿鐨勫叧緋伙紝璇ヨ〃涓嶵DT閰嶅悎浣跨敤銆?br>TSDT錛圱ransport Stream Description Table錛夛細(xì)鐢盤ID0x0002鏍囪瘑,鎻愪緵浼犺緭嫻佺殑涓浜涘弬鏁?
ST錛圫tuffing Table錛夛細(xì)璇ヨ〃琛ㄦ槑鍏跺唴瀹規(guī)槸鏃犳晥鐨勶紝鍙槸浣滀負(fù)濉厖瀛楄妭銆?/p>
1銆佺綉緇滀俊鎭〃錛圢IT錛?br>
緗戠粶淇℃伅琛ㄦ彁渚涗竴緇勪紶杈撴祦浠ュ強(qiáng)鐩稿簲鐨勮皟璋愪俊鎭侼IT鍦↖RD錛堟暣鍚堟帴鏀惰В鐮佸櫒錛夊惎鍔ㄧ▼搴忎腑鐢ㄥ埌錛屽茍涓旇皟璋愪俊鎭彲浠ュ瓨鍌ㄥ埌涓嶅彉鐨勫瓨鍌ㄥ櫒涓侼IT榪樺彲浠ョ敤鏉ユ爣蹇楄皟璋愪俊鎭殑鍙樺寲銆侼IT閬典粠濡備笅瑙勫畾錛?br>a銆佸綋鍓嶇殑浼犺緭緋葷粺蹇呴』鍖呭惈NIT銆?br>b銆佸綋涓斾粎褰揘IT鍖呭惈鍙敤鐨勪紶杈撶郴緇熸弿榪扮錛屽綋鍓嶄紶杈撶郴緇熸墠鏄湁鏁堢殑銆傝繖灝辨寚瀹氫簡(jiǎn)NIT鍖呭惈鏈夋晥淇℃伅鐨勬潯浠躲傚湪涓浜涘箍鎾紶杈撶郴緇熻竟鐣岋紝TS涓殑NIT涔熻鍏?璁哥敤鏉ユ弿榪板箍鎾閬撲腑鐨勬棭鏈熺殑緗戠粶銆侷RD涓嶅緱涓嶉夋嫨涓涓笉鍚岀殑鏈哄埗鏉ヨ幏寰楀綋鍓嶄紶杈撶郴緇熺殑鐩稿簲鐨勮皟璋愪俊鎭備緥濡傦紝涓涓崼鏄烮RD鎺ュ彈鍒板綋鍓嶄紶杈撶郴緇熺殑涓涓?鍗槦浼犺緭緋葷粺鎻忚堪絎︼紝閭d箞榪欎釜鎻忚堪絎﹁瑙嗕負(fù)鏈夋晥錛屽鏋滀竴涓數(shù)緙咺RD鎺ユ敹鍒板綋鍓嶄紶杈撶郴緇熺殑涓涓數(shù)緙嗕紶杈撶郴緇熸弿榪扮涔熸槸鏈夋晥鐨勶紝浣嗘槸錛屽鏋滅數(shù)緙咺RD鎺ユ敹鍒?褰撳墠浼犺緭緋葷粺鐨勪竴涓崼鏄熶紶杈撶郴緇熸弿榪扮錛岄偅涔堣繖涓弿榪扮瀵逛簬榪欎釜IRD灝辨槸鏃犳晥鐨勩?br>c銆佸鏋滃綋鍓嶄紶杈撶郴緇熶竴涓湁鏁堢殑NIT鍦⊿I姣旂壒嫻佷腑鍑虹幇錛岄偅涔堣繖涓狽IT搴斿綋鍒楀嚭褰撳墠浼犺緭緋葷粺涓墍鏈夌殑TS銆?br>d銆丼I嫻佹瘡10縐掗挓搴斿綋鑷沖皯鍖呭惈8涓猅S鍖呮潵浼犺緭NIT鎴栬呯┖鍖呫傝繖涓瀹氱畝鍖栦簡(jiǎn)騫挎挱浼犺緭杈圭晫涓璑IT鐨勫浣嶏紙replacement錛夈備嬌鐢ㄨ繖鏍風(fēng)殑澶嶄綅鏈哄埗錛屼嬌寰楁湰鍦伴鐜囨帶鍒朵嬌鐢ㄤ綆寤夎澶囨垚涓哄彲鑳姐?br>SI 浣跨敤涓や釜鏍囧織鏉ユ弿榪頒紶杈撶郴緇熴傚畠浠垎鍒槸network_id鍜宱riginal_network_id銆傚悗鑰呯敤鏉ヤ綔涓轟竴涓猅S涓殑涓涓湇鍔$殑鍞竴鏍囧織絎︼紝鍗充嬌榪欎釜TS琚紶閫佸埌浜?jiǎn)鍏朵粬鐨勪紶杈摼p葷粺涔嬩腑銆?br>涓涓猅S鍙互琚玴ath錛?original_network_id/transport_stream_id鍞竴鏍囪瘑銆?br>涓涓湇鍔″彲浠ヨpath錛?original_network_id/transport_stream_id/service_id鍞竴鏍囪瘑銆?br>鏄劇劧錛宯etwork_id涓嶅湪榪欎釜 path涔嬪唴銆傚彟澶栵紝姣忎釜original_network_id涓兘鏈変笉鍚岀殑service_id銆傚綋涓涓湇鍔★紙鍚屼竴涓猅S鍐咃級(jí)琚紶閫佸埌鍙︿竴涓紶杈撶郴緇?鍚庯紝鍙湁network_id鏀瑰彉浜?jiǎn)锛宱riginal_network_id涓嶅彈褰卞搷銆?br>涓嬮潰涓句釜渚嬪瓙錛岃冭檻濡備笅鎯呭喌錛氭湁涓や釜鏈嶅姟錛圓鍜孊錛夛紝瀹冧滑婧愪簬涓や釜涓嶅悓鐨勪紶杈撶郴緇熷茍涓旂宸ф湁鐩稿悓鐨剆ervice_id鍜宼ransport_stream_id錛屽畠浠浼犺緭鍒頒竴涓柊鐨勪紶杈撶郴緇熴?br>鍦?榪欎釜渚嬪瓙涓紝榪欎袱涓湇鍔¤瀹夋帓鍦ㄦ柊network涓殑涓嶅悓鐨凾S涓傚鏋滆繖涓や釜鏈嶅姟琚斁鍦ㄥ悓涓涓猅S涓紝閭d箞蹇呴』淇敼鏈嶅姟鐨処D鍙鳳紝鍥犱負(fù)鍦ㄥ悓涓涓猅S涓竴 涓猻ervice_id涓嶈兘澶熷垎閰嶇粰澶氫釜鏈嶅姟錛屽茍涓斾竴涓猅S浠呬粎鍙互瀵瑰簲涓涓猳riginal_network_id銆?br>
2銆丅AT淇℃伅
BAT鎻愪緵涓緇勬湇鍔★紝榪欎簺鏈嶅姟鎻愪緵浜?jiǎn)涓涓熀紜錛孖RD鍦ㄨ繖浜涘熀紜涔嬩笂鍚戠敤鎴峰睍紺烘湁鏁堢殑鏈嶅姟銆侭AT鐨勪紶杈撴槸鍙夌殑銆備笅闈㈢殑瑙勫垯鎻愰珮浜?jiǎn)SI姣旂壒嫻佺殑榪炶瘡鎬у茍涓旂畝鍖栦簡(jiǎn)IRD鐨勫伐浣溿?br>SI姣旂壒嫻佸簲褰撳湪姣忎釜BAT瀛愯〃涓垪鍑洪泦閿︾殑鎵鏈夋湇鍔°?br>娉ㄦ剰錛氫竴涓湇鍔″彲浠ュ睘浜庡涓猙ouquet銆傝繖涓瑙勫畾浣垮緱IRD鍙互閫氳繃涓嶅悓鐨凾S寰楀埌涓涓湇鍔°?br>濡傛灉IRD灝哹ouquet涓湇鍔′俊鎭彁渚涚粰鐢ㄦ埛錛岄偅涔堝垪鍦╞ouquet涓殑鏈嶅姟灝卞緱鍒頒繚璇侊紝鍚﹀垯涓浜涙湇鍔″皢浼?xì)涓㈠け銆備竴涓猙ouquet鍙互鎶婁笉鍚岀綉緇滀紶杈撶殑澶氫釜TS涓殑鏈嶅姟闆嗕腑璧鋒潵銆傚鏋淏AT涓墍鏈夋湇鍔¢兘琚垪鍦⊿DT涓紝IRD瀵筨ouquet涓墍鏈夋湇鍔′俊鎭殑璁塊棶灝嗕細(xì)鍙樺緱瀹規(guī)槗銆傚悓鏍風(fēng)殑錛屽鏋淣IT淇?鎭粰鍑烘墍鏈塗S涓璼ervice鐨勫閲忥紝IRD瀵箂ervice鐨勮闂皢浼?xì)鍙樺緱瀹规槗銆?br>
3銆丼DT淇℃伅
SDT鐢ㄦ潵緗楀垪TS涓璼ervice鐨勫悕縐頒互鍙?qiáng)鍏朵粬鍙傛暟銆傛瘡涓涓猅S涓兘鏈変竴涓嫭绔嬬殑SDT瀛愯〃銆備負(fù)浜?jiǎn)鎻愰珮瀵箂ervice鐨勯噰闆嗭紝瀹氫箟浜?jiǎn)涓嬪垪瑙勫垯锛?xì)
寮哄埗浼犺緭褰撳墠TS鐨凷DT銆?br>SDT鍒楀嚭鐨凷I姣旂壒嫻佽嚦灝戝寘鎷琓S涓墍鏈夋湇鍔°?br>鍙﹀錛?br>褰撳墠TS錛堜緥濡倀able_id=0x46錛変腑SDT鎻忚堪鍏朵粬TS鏃訛紝搴斿綋鍒楀嚭榪欎釜TS鐨勬墍鏈塻ervice銆?br>寮虹儓鎺ㄨ崘service_id錛屽湪涓涓猲etwork涓竴鏃︽妸涓涓猻ervice_id鍒嗛厤緇欎簡(jiǎn)涓涓壒瀹氱殑鏈嶅姟錛岄偅涔堣繖涓猻ervice_id灝嗕笉鍐嶅彉鍖栵紝浠ヤ究浜嶪RD瀹炵幇鏀惰棌棰戦亾鍒楄〃涔嬬被鐨勫姛鑳姐?br>
浜嬩歡淇℃伅琛ㄧ敤鏉ヤ紶閫掑綋鍓嶇殑錛屽皢鏉ョ殑鐢氳嚦鏇磋繙鐨勬湭鏉ョ殑浜嬩歡鐨勪俊鎭傛瘡涓猄ervice閮芥湁鑷繁鐙珛鐨凟IT瀛愯〃銆?br>
4.1 EIT Present/Following 淇℃伅錛堜竴涓嬬畝縐癊IT P/F錛?br>
涓嬪垪瑙勫垯綆鍖栦簡(jiǎn)EIT P/F淇℃伅鐨勮幏寰椼係I瑙勮寖瑙勫畾EIT孌墊渶澶ч儴瓚呰繃4096瀛楄妭銆?br>SI 嫻佷腑鐨勬瘡涓猄ervice閮芥湁涓ゆ鏉ユ弿榪癊IT Present/Following錛宻ection_number 0x00鐢ㄦ潵鎻忚堪褰撳墠浜嬩歡錛宻ection_number 0x01鎻忚堪涓嬩竴涓簨浠躲傝繖浜涚害鏉熶笉閫傜敤浜嶯VOD寮曠敤鐨凷ervice錛岃繖浜汼ervice鍦ㄦ瘡孌典腑鍙兘鏈夊涓簨浠舵弿榪幫紝騫朵笖鍦‥IT Present/Following涓彲鑳芥湁鏇村鐨勬銆傛帹鑽愭彁渚涗簨浠舵弿榪癳vent_id鐨勫崌搴忔帓鍒椼?br>鍦ㄤ竴涓猻ection涓紝SI鍙互鐢ㄦ渶澶?096涓瓧鑺傛潵鎻忚堪涓涓崟鐙殑浜嬩歡銆?br>瀵逛簬褰撳墠浜嬩歡鏈夊涓嬭瀹氾細(xì)
a銆佸悓涓鏃跺埢鏈澶氬彧鏈変竴涓綋鍓嶄簨浠躲?br>b銆佸綋瀛樺湪涓涓綋鍓嶄簨浠舵椂錛岃浜嬩歡搴斿綋琚弿榪板湪EIT Present/Following鐨剆ection0涓?br>c銆佸綋鍓嶄簨浠朵腑鐨剅unning_status搴斿綋琚粰鍑恒傚涓嬭〃錛?/p>
4.2 EIT Schedule淇?br>1錛塃IT Schedule緇撴瀯
閬典粠濡備笅瑙勫垯錛?br>a銆丒IT/Schedule鍒嗛厤浜?6涓猼able_id錛?x50-0x5F緇欏綋鍓峊S錛?x60-0x6F緇欏叾瀹僒S錛岃繖浜沬d鎸夌収鏃墮棿欏哄簭鎺掑垪錛?br>b銆佸瓙琛ㄤ笅鐨?56涓猻ection琚垎涓?2孌碉紙segment錛夛紝姣?涓猻ection涓涓錛坰egment錛夈係egment錛?錛屼粠section0鍒?錛宻egment錛?錛屼粠section8鍒?5錛岀瓑絳夛紱
c銆佹瘡孌靛寘鍚笁涓皬鏃跺唴寮濮嬬殑浜嬩歡淇℃伅錛?br>d銆佹鍐呬簨浠朵俊鎭寜鐓ф椂闂存帓鍒楋紱
e銆?濡傛灉涓涓錛坰egment錛夋湁n鑺傦紙section錛夛紝鑰宯<8錛岃繖涓俊鎭繀欏繪斁鍦ㄦ涓墠n涓妭涓紝榪樿鏄懼紡鎸囨槑鏈鍚庝竴鑺傜殑浣嶇疆錛歋0錛媙錛? 錛圫0鏄涓涓鑺傦級(jí)錛岃繖涓煎湪EIT鐨剆egment_last_section_number涓備緥濡傦紝絎簩孌靛彧鏈変袱鑺傦紝閭d箞 segment_last_section_number鍖呭惈鍊?錛?錛?錛?錛?br>f銆佸鏋滄涓湁鑺傜殑璇濓紝孌電殑segment_last_section_number搴斿綋鏈夊約0錛?錛?br>g銆佸畬鍏ㄧ┖鐨勬閫氳繃絀鴻妭錛堜笉鍚換浣昹oop over浜嬩歡錛夎〃紺猴紝孌電殑vsegment_last_section_number鍊間負(fù)s0錛?錛?br>h銆佹涓簨浠剁殑瀹夋帓閬典粠涓涓椂闂磘0銆?br>t0鏄氱敤鏃墮棿鍧愭爣錛圲niversal Time Coordinated錛圲TC錛夛級(jí)鐨?#8220;last midnight”銆?br>涓句釜渚嬪瓙錛歎TC-6鐨勪笅鍗?鐐癸紝灝辨槸UTC-0鐨勪笅鍗?1鐐癸紝鍗充粠“last midnight”綆楄搗23灝忔椂銆傚洜姝ゅ浜嶶TC-6錛宼0灝辨槸鍓嶄竴澶╃殑涓嬪崍6鐐癸紱
i銆?table_id 0x50錛堝鍏跺畠TS鏄?x60錛夌殑絎?孌碉紝鍖呭惈浠庡崍澶滐紙UTC鏃墮棿錛夊埌“浠婂ぉ”02錛?9錛?9錛圲TC鏃墮棿錛夛紙涓変釜灝忔椂錛夌殑浜嬩歡淇℃伅銆傜1孌靛寘鍚粠 03錛?0錛?0鍒?5錛?9錛?9錛圲TC鏃墮棿錛夌殑浜嬩歡淇℃伅錛屼緷姝ょ被鎺ㄣ傝繖灝辨剰鍛崇潃錛岀涓涓瓙琛ㄥ寘鍚粠“浠婂ぉ”UTC鍗堝鏃墮棿綆楄搗鍓?澶╃殑淇℃伅錛?br>j銆乴ast_section_number鐢ㄦ潵鎸囨槑瀛愯〃鐨勭粨鏉熶綅緗紱
k銆乴ast_table_id鐢ㄦ潵鎸囨槑鏁翠釜EIT/Schedule緇撴瀯鐨勭粨鏉熶綅緗紱
l銆佷笌榪囧幓浜嬩歡鐩稿叧鐨勬鍙互鐢ㄧ┖孌典唬鏇匡紝鍙傝g瑙勫垯錛?br>m銆丒IT/Schedule鍖呭惈鐨勪簨浠跺畾涔変腑鐨剅unning_status搴斿綋璁句負(fù)“涓哄畾涔?#8221;鍗?x00錛?br>n銆丒IT/Schedule琛ㄤ笉閫傜敤浜嶯VOD娑夊強(qiáng)鐨勬湇鍔★紝鍥犱負(fù)榪欎簺鏈嶅姟甯︽湁鏈畾涔夊紑濮嬫椂闂寸殑浜嬩歡錛?br>
2錛塃IT 鍔犲瘑
EIT Schedule琛ㄦ牸鍙互琚姞瀵嗐備負(fù)浜?jiǎn)涓庢潯錃g鎺ュ叆鐩歌仈緋伙紝蹇呴』鍒嗛厤涓涓猻ervice_id錛堬紳MPEG-2 program_number錛夋潵鎻忚堪鍔犲瘑鐨凟IT Schedule Tables錛岃繖涓猻ervice_id鍦≒SI涓侲IT鍦≒MT涓畾涔夛紝service_id鐪嬫垚鐢變竴涓猵rivate stream緇勬垚鐨勫悇縐嶇數(shù)瑙嗚妭鐩紙The EIT is identified in the Program Map Table (PMT) section for this service_id as a programme
consisting of one private stream錛夛紝PMT鍖呭惈涓涓垨澶氫釜CA_descriptor鏉ラ獙璇佺浉鍏崇殑CA鐮佹祦銆備負(fù)杈懼埌榪欎釜鐩殑錛屽湪DVB搴旂敤紼嬪簭涓璼ervice_id鐨勫?xFFFF琚繚鐣欍?/p>
鍥涖佸姞瑙f壈鎶鏈?/strong>
浜斻佸鐢ㄤ笌瑙e鐢ㄦ妧鏈?/strong>
鐜板疄涓栫晫鐨勯煶棰戞槸妯℃嫙閲忥紝鎴戜滑瑕佸皢榪欎釜閲忚漿鍖栦負(fù)鏁板瓧閲忕殑鏂規(guī)硶鏄笁姝ワ細(xì)
鎶芥牱錛岄噺鍖栵紝緙栫爜銆?/p>
鎶芥牱錛屽氨鏄竴縐掗挓瑕佹娊鍙栫殑妯℃嫙閲忕殑鏁扮洰錛岃繖閲屽氨瀹屾垚浜?jiǎn)妯℃嫙閲忕殑鏃堕棿绂绘暎锛屼竴縐掓娊鍑犳 灝辨槸sample rate 鎶芥牱鐜?鍗曚綅鏄疕z錛岃繖閲屽緱鍒扮殑鏄鏁fā鎷熶俊鍙鳳紝甯哥敤鐨勯煶棰戞娊鏍風(fēng)巼濡備笅錛?/p>
8KHz;16KHz;32KHz;44.1KHz;48KHz;
閲忓寲灝辨槸浠庣┖闂翠笂紱繪暎錛屽涓婅竟姣忎釜鎶芥牱鐨剆ample榪涜閲忓寲錛屽皢紱繪暎妯℃嫙淇″彿杞寲涓虹鏁f暟瀛椾俊鍙鳳紝姣斿灝嗕竴涓猻ample杞寲涓?6bit錛岄噰鏍鋒繁搴?灝辨槸 bits per sample銆?/p>
閭d箞 鏈鍚庢暟瀛椾俊鍙風(fēng)殑鐮佺巼 錛?閲囨牱鐜?閲囨牱娣卞害 bits/second = samples/second * bits/sample
姣旂壒鐜囧氨琛ㄧず涓縐掗挓浼犺緭鐨勯煶棰戠殑1 錛?姣旂壒鏁扮洰銆備竴鑸湁鐜囬兘鏄〃紺轟竴縐掗挓鍐呬紶杈撶殑鏁版嵁閲忋?/p>
闊抽鐨勫叾浠栧弬鏁幫細(xì)澹伴亾鍙互鍒嗕負(fù)2錛?.1澹伴亾
絎笁姝ュ氨鏄紪鐮侊紝鏍規(guī)嵁鏈夋崯鏃犳崯鏂瑰紡錛屽彲浠ュ垎涓轟袱綾伙紝
audio code錛?/p>
PCM-A Law;PCM-Mu Law;G.723.1;G.729;MPEG Audio;G.726@40K;G.726@32K;G.726@24K;G.726@16K
涓嬮潰瀵瑰悇縐嶉煶棰戞牸寮忓仛浠ヤ粙緇嶏紙涓鑸煶棰戞牸寮忛兘鏄笌瀹冪殑緙栫爜鏍煎紡鏈夊叧鐨勶級(jí)錛?/p>
甯哥敤鐨勬湁wav錛宲cm榪欎袱涓槸鏃犳崯鍘嬬緝鏂瑰紡錛寃av灝辨槸璁板綍浜?jiǎn)闊抽鐨剋ave鐨勬嘗褰紝pcm鏄疨ulse code modulation.
1wma(windows media audio)瑙嗙獥濯掍綋闊抽銆傚井杞殑闊抽鍘嬬緝鎶鏈紝闊寵川綾諱技mp3錛岃兘浠p3涓鍗婄殑鎶鏈畬鎴愩傞氳繃瀹夎wmp錛坵indows media player錛夋潵鎾斁銆?nbsp;
2mp3搴旂敤鏈騫跨殑鏈夋崯鍘嬬緝錛圡PEG Audio Layer 3錛夛紝瀹冧嬌鐢ㄤ簡(jiǎn)CBR,VBR,ABR.
CBR(constant bit rate)鏁翠釜鏂囦歡鐨勬瘮鐗圭巼閮芥槸涓鏍風(fēng)殑銆備笉鍚屽鏉傜▼搴︾殑闊抽閮界敤鐩稿悓鐨勭爜鐜囷紝緙虹偣瑙嗗鏉傛钀介煶璐ㄥ樊錛屼紭鐐規(guī)槸鏂囦歡灝哄鍥哄畾銆?/p>
VBR(virable bit rate)灝嗕竴棣栨瓕鐨勫鏉傞儴鍒嗙敤楂樻瘮鐗圭巼緙栫爜錛岀畝鍗曢儴鍒嗙敤浣庢瘮鐗圭巼緙栫爜錛屼嬌澶嶆潅紼嬪害涓庝綋縐箣闂村鉤琛°備紭鐐規(guī)槸鏁撮姝岄兘鑳借揪鍒版垜浠殑闊寵川瑕佹眰錛岀己鐐規(guī)槸緙栫爜鏃犳硶浼拌鍘嬬緝鍑烘潵鐨勪綋縐ぇ灝忋?/p>
ABR(average bit rate)浠ユ瘡縐?0甯т負(fù)涓孌碉紝浣庨鍜屼笉鏁忔劅棰戠巼浣跨敤鐩稿浣庣殑嫻侀噺錛岄珮棰戝拰澶у姩鎬佽〃鐜版椂浣跨敤楂樻祦閲忥紝鍙互浣滀負(fù)VBR鍜孋BR鐨勪竴縐嶈繖縐嶉夋嫨銆?/p>
3.ADPCA(adaptive differential pulse code modulation)鑷傚簲宸垎鑴夊啿緙栫爜銆傛湁鎹熷帇緙┿傚帇緙╂瘮寰堥珮銆傚綋闊寵川涓鑸?/p>
4.AAC錛坅dvanced audio coding 楂樼駭闊抽緙栫爜錛塵peg2涓閮ㄥ垎錛屽畠瀵圭珛浣撳0錛屽櫔闊充紭鍖栵紝澶氬獟浣撴帶鍒訛紝鐮佹祦鏁堟灉闊蟲壂鎻忛珮綰х壒鎬с傛敮鎸佸縐嶈璦鍜屾瘮鐗圭巼錛屾洿楂樿В鐮佹晥鐜囷紝acc鍙互鍦ㄦ瘮mp3鏂囦歡緙╁皬30錛呭墠鎻愪笅鎻愪緵鏇村ソ鐨勯煶璐ㄣ?/p>
5asf錛坅dvanced streaming format 楂樼駭嫻佸姩鏍煎紡錛変富瑕佹椂鏀寔闊抽緗戠粶浼犺緭
ps錛氳棰戞牸寮忓父鐢ㄧ殑size鏈?/p>
80x60;88x72;160x120;176x144;320x240;352x240;352x288;640x480;704x480;704x576;720x576;