国产在线中文字幕亚洲,一区视频国产精品观看,欧美日韩国产高清片,久久久久久AV无码免费网站,亚洲无码一二三四五区,日韩无码www.,sese444

鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

CIF
闁辫畝锛�17402鏅�(sh铆)闁擄細2010-11-22 13:40:52

銆�銆�鐐轰簡鏃㈠彲鐢�625 琛岀殑闆昏鍦栧儚鍙堝彲鐢�525 琛岀殑闆昏鍦栧儚锛孋CITT 瑕�(gu墨)瀹氫簡绋辩偤鍏敤涓枔鍒嗚鲸鐜�鏍煎紡CIF(Common Intermediate Format)锛�1/4 鍏敤涓垎杈ㄧ巼鏍煎紡(Quarter-CIF锛孮CIF)鍜�(Sub-Quarter Common Intermediate Format锛孲QCIF)鏍煎紡灏�(du矛)闆昏鍦栧儚閫�(j矛n)琛岄噰妯ｃ��

姒傝堪

銆�銆�CIF鏄父鐢ㄧ殑妯�(bi膩o)婧�(zh菙n)鍖栧湒鍍忔牸寮忥紙Common Intermediate Format锛�銆傚湪H.323鍗�(xi茅)璀扮皣涓�锛岃(gu墨)瀹氫簡瑕栭牷閲囬泦瑷�(sh猫)鍌欑殑妯�(bi膩o)婧�(zh菙n)閲囬泦鍒嗚鲸鐜�銆侰IF = 352脳288鍍忕礌銆�

銆�銆�QCIF鍏ㄧūQuarter common intermediate format銆俀CIF涔熸槸甯哥敤鐨勬(bi膩o)婧�(zh菙n)鍖栧湒鍍忔牸寮�銆傚湪H.323涓�锛岃(gu墨)瀹歈CIF = 176脳144鍍忕礌銆�

鐗规��

銆�銆�CIF 鏍煎紡鍏锋湁濡備笅鐗规�э細

銆�銆�(1) 闆昏鍦栧儚鐨勭┖闁撳垎杈ㄧ巼鐐哄鐢ㄩ寗鍍忕郴绲�(t菕ng)(Video Home System锛孷HS)鐨勫垎杈ㄧ巼锛屽嵆352脳288銆�

銆�銆�(2) 浣跨敤闈為殧琛屾巸鎻�(non-interlaced scan)銆�

銆�銆�(3) 浣跨敤NTSC 骞�閫熺巼锛岄浕瑕栧湒鍍忕殑骞�閫熺巼鐐�30000/1001鈮�29.97 骞�/绉掋��

銆�銆�(4) 浣跨敤1/2 鐨凱AL 姘村钩鍒嗚鲸鐜�锛屽嵆288 绶�銆�

銆�銆�(5) 灏�(du矛)浜害鍜屽叐鍊�(g猫)鑹插樊淇¤櫉(h脿o)(Y銆丆b 鍜孋r)鍒嗛噺鍒嗗垾閫�(j矛n)琛岀法纰�锛屽畠鍊戠殑鍙栧�艰寖鍦嶅悓ITU-R BT.601銆傚嵆榛戣壊=16锛岀櫧鑹�=235锛岃壊宸殑鍊肩瓑浜�240锛屾渶灏忓�肩瓑浜�16銆�

鍒嗚鲸鐜囦娇鐢ㄧ悊鐢�

銆�銆�鐩墠鐩�(ji膩n)鎺ц妤�(y猫)涓富瑕佷娇鐢≦cif锛�176脳144锛�銆丆IF锛�352脳288锛�銆丠ALF D1锛�704脳288锛�銆丏1

銆�?銆�?04脳576锛夌瓑骞剧ó鍒嗚鲸鐜�锛孋IF閷勫儚鍒嗚鲸鐜囨槸涓绘祦鍒嗚鲸鐜�锛岀禃澶ч儴鍒嗙敘(ch菐n)鍝侀兘閲囩敤CIF鍒嗚鲸鐜囥�傜洰鍓嶅競鍫存帴鍙桟IF鍒嗚鲸鐜�锛屼富瑕佺悊鐢辨湁鍥涢粸(di菐n)锛�

銆�銆�1銆佺洰鍓嶆暩(sh霉)纰肩洠(ji膩n)鎺ц姹傝闋荤⒓娴佷笉鑳藉お楂�锛�

銆�銆�2銆佽闋诲偝杓稿付瀵篃鏈夐檺鍒�锛�

銆�銆�3銆佷娇鐢℉ALF D1銆丏1鍒嗚鲸鐜囧彲浠ユ彁楂樻竻鏅板害锛屾豢瓒抽珮璩�(zh矛)閲忕殑瑕佹眰锛屼絾鏄互楂樼⒓娴佺偤浠ｅ児(ji脿)鐨�銆傚湪鐝�(xi脿n)闅庢锛屽嚭鐝�(xi脿n)浜嗙溇澶欴1鐨勭敘(ch菐n)鍝�锛屼絾甯傚牬浠介闈炲父灏�锛�

銆�銆�4銆侀噰鐢–IF鍒嗚鲸鐜囷紝淇″櫔姣斿湪32db浠ヤ笂锛屼竴鑸敤鎴舵槸鍙互鎺ュ彈鐨勶紝浣嗕笉鏄悊鎯崇殑瑕栭牷鍦栧儚璩�(zh矛)閲�銆傜洰鍓嶆キ(y猫)鍏�(n猫i)浜哄＋姝ｅ湪鍢楄│鐢℉ALF D1渚嗗皨姹侰IF銆丏1涔嬮枔鐨勫钩琛�銆備絾闅ㄨ憲鍠纭洡鐨勫閲忛仈(d谩)鍒�750GB鐢氳嚦1000GB锛岃�屽湅鍏�(n猫i)鐨勫ぇ閮ㄥ垎DVR宸茬稉(j墨ng)鍙互鍋氬埌閫ｆ帴8濉�1000GB鐨勭‖鐩�锛屾晠D1閫愭几鏈�(hu矛)璁婃垚鏅�(sh铆)甯哥殑涓绘祦銆�

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�(sh铆)锛屼竴鏌ョ櫨閫�锛�

宸叉敹閷勮姊�168779鍊�(g猫)