width="436" height="344">
<param name="movie"
value="dir/play.swf?file=dir/vid.flv&autoStart=false"
/>
<param name="wmode" value="transparent" />
<img src="play.gif" width="436" height="344"
alt="Player" />
</object>
鍏朵腑 play.swf鏄痜lash鎾斁鍣? vid.flv鏄漿鎹㈠ソ鐨刦lv鏂囦歡, autoStart=false琛ㄧず涓嶅湪緗戦〉璇誨畬涔嬪悗灝辯珛鍒繪挱鏀? 鑰?play.gif琛ㄧず褰撴祻瑙堝櫒涓嶆敮鎸丗lash鏃剁綉欏墊墍鏄劇ず鐨勫浘鐗?
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youtube鐏搗鏉ヤ互鍚庯紝鍥藉唴澶栬窡榪涚殑涓澶ф妸錛屼笉榪囨妧鏈拰嫻佺▼涓婃病鏈変換浣曠獊鐮達(dá)紝鍩烘湰涓婂氨鏄湇鍔″櫒鑷姩瀵圭敤鎴蜂笂浼犵殑瑙嗛榪涜鍘嬬緝錛屽帇鎴愬彲浠ョ敤flash鍦ㄧ嚎鎾斁鐨刦lv錛岀緝?yōu)畯灏哄迤堥檷浣庣爜鐜囥傜劧鍚庡啀鐢‵lash鍒朵綔涓涓挱鏀懼櫒錛屽彲浠ユ牴鎹弬鏁板湪綰挎挱鏀炬寚瀹氱殑flv瑙嗛錛屽綋鐒舵湁浜涜繕浼?xì)鍔犱笂姘村嵃鍜岃穼檱忿q綉绔欑瓑鍔熻兘銆?br />
杞崲宸ュ叿鍙互閫夋嫨ffmpeg鍜宮encoder錛岃繖2涓兘鏄痝nu欏圭洰錛屽茍涓斿彲浠ラ潪甯稿畬緹庣殑鍦╨inux/Mac/Win32絳夊鉤鍙頒笅浣跨敤銆備笉榪噁fmpeg鏀寔鐨勮棰戞牸寮忚緝?yōu)?涓嶈兘寰堟柟渚跨殑鏀寔rmvb,mov絳夛紝涓嶈繃鎹Google Video鐢ㄧ殑鏄繖涓?錛岃宮encoder鍒欎笉鑳借繘琛屾埅鍥撅紝鎵浠ュ彲浠ヨ冭檻2鑰呯粨鍚堜嬌鐢紝mencoder璐熻矗杞崲錛宖fmpeg璐熻矗鎴浘銆?br />
鍏充簬涓嬭澆鍜屽畨瑁咃紝ffmpeg鐑?chǔ)涓鐐癸紝瀹樻柟緗戠珯涓婂彧鎻愪緵浜?jiǎn)svn錛岄渶瑕佽嚜宸辯紪璇戙傚叿浣撳彲浠ュ弬鑰僪ttp://blog.5ilinux.com/archives/2006/08/ffmpeg.html錛學(xué)indows榪橀渶瑕佽MinGW鏉SYS妯℃嫙linux鐜錛屽伔鎳掔殑璇濆彲浠ョ洿鎺ユ壘涓紪璇戝ソ鐨勭増鏈紝涓嶈繃鍔熻兘鍙兘浼?xì)涓嶅叏銆?br />
mencoder鍒欏緢綆鍗曪紝鏈潵灝辨槸mplayer鐨勪竴閮ㄥ垎錛屼細(xì)瑁卪player灝辨垚銆傛敞鎰忔妸codecs閮借鍏ㄤ簡(jiǎn)
棣栧厛閫氳繃mencoder鎶婃櫘閫氳棰戣漿鍖栦負(fù)flv鏍煎紡錛屽懡浠ゅ涓?br />
浠ｇ爜
mencoder test.avi -o test.flv -of lavf -oac mp3lame -lameopts abr:br=32:mode=3 -ovc lavc -lavcopts vcodec=flv:vbitrate=150:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -srate 22050 -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames -vf scale=350:-3 -sws 2
mencoder 鐨勫弬鏁拌秴綰у鏉傦紝瑙嗛煶棰戝帇緙╂湰韜張鏄竴闂ㄩ潪甯擱珮娣辯殑瀛﹂棶錛屾湰浜虹暐鐭ョ毊姣涳紝涓嬮潰鍙鑷繁浜?jiǎn)瑙ｇ殑涓浜涘弬鏁板仛浜涜鏄庯紝璇︾粏瑙ｉ噴璇風(fēng)湅鎵嬪唽
寮曠敤
test.avi
杈撳叆鏂囦歡璺緞錛屾槸Mplayer鑳芥敮鎸佺殑鏍煎紡鍗沖彲
-o test.flv
杈撳嚭璺緞
-of lavf
杈撳嚭鏍煎紡 lavf琛ㄧずlibavcodec
-oac mp3lame
杈撳嚭闊抽緙栫爜鏂瑰紡錛宭ame鏄渶濂界殑mp3緙栫爜鍣?br />
-lameopts abr:br=32:mode=3
lame鐨勯夐」
abr浠ｈ〃騫沖潎鐮佺巼錛岀浉瀵逛簬cbr(鍥哄畾鐮佺巼)鍜寁br(鍙彉鐮佺巼,璨屼技涓嶆敮鎸?
br灝辨槸闊抽鐨勭爜鐜囷紝瓚婇珮闊寵川瓚婂ソ
mode=3錛?-3鍒嗗埆浠ｈ〃Stereo,Joint Stereo,Force ms_stereo,Mono(榛樿涓鴻嚜鍔紝浜嬪疄涓?鍜?瀵規(guī)枃浠跺ぇ灝忕殑褰卞搷騫朵笉鏄緢澶?
鍙﹀鍙夌殑榪樻湁 vol(闊抽噺錛屽彇鍊?-10,鏁板艱秺澶ч煶閲忚秺澶э紝涓嶅緩璁慨鏀?絳?br />
-srate 22050
澹伴煶閲囨牱棰戠巼璁劇疆錛屼篃鍙互閫?1025錛屾枃浠跺彲浠ョ◢灝忎竴鐐?br />
-ovc lavc
杈撳嚭瑙嗛緙栫爜 lavc灝辨槸libavcodec
-lavcopts
lavc鐨勭殑閫夐」
codec=flv flv鏍煎紡鍘嬬緝
vbitrate=150 瑙嗛鐮佺巼
鍏朵粬鍑犱釜閫夐」涓姒備笉鎳傦紝璇風(fēng)湅鎵嬪唽(涓鑸潵璇寸湅浜?jiǎn)杩樻槸涓嶆?
-vf scale=350:-3 -sws 2
緙╂斁瑙嗛錛屾寚瀹氬搴︿負(fù)350錛岄珮搴︽寜姣斾緥鏉ャ傝川閲忕敱-sws閫夐」鎺у埗錛屽叿浣撶湅鎵嬪唽
-ofps 23 璁懼畾甯ф暟錛岀緝?yōu)畯鍝徭暟瀵硅妭绾︽枃錃g澶у皬鏁堟灉涓嶆槑鏄撅紝涓斿彲鑳介犳垚鐢婚潰澹伴煶鍚屾銆傚緩璁笉璁劇疆
mencoder鍘嬬緝鍚庣敓鎴愮殑flv緙哄皯meta淇℃伅錛屼細(xì)閫犳垚鎾斁鏃舵病鏈夎繘搴︽潯絳夐棶棰橈紝闇瑕佸啀鐢╢lvmdi淇涓涓?br />
浠ｇ爜
flvmdi test.flv
鐢熸垚鍚庣殑flv閫氳繃MPC灝卞彲浠ラ瑙堛?br />
ffmpeg鎴浘
浠ｇ爜
ffmpeg -i test.flv -ss 10 -vframes 1 -r 1 -ac 1 -ab 2 -s 320×240 -f image2 test.jpg
-ss 10 灝辨槸璇?縐掑悗鐨勯偅涓甯?br />
鐒跺悗鐢熸垚flash瑙嗛鎾斁鍣ㄧ殑璇濓紝緗戜笂渚嬪瓙寰堝錛岃嚜宸卞Flash鐮旂┒涔熶笉娣憋紝涔熷氨涓嶅璇翠簡(jiǎn)錛岃鑷畾涔夋挱鏀懼櫒鐣岄潰鐨勫弬鑰僪ttp://www.adobe.com/cn/devnet/flash/articles/custom_flvcomp_print.html
鍞竴闇瑕佽ˉ鍏呬竴涓嬬殑鏄棰戠殑smoothing灞炴э紝鐜板湪鐨勫湪綰挎挱鏀懼櫒灝哄涓鑸兘鍥炴瘮瀹為檯鍘嬬緝鍚庣殑瑙嗛灝哄澶т竴浜涳紝smoothing=true鍙互淇濊瘉鏀懼ぇ鐨勮川閲?鍖呮嫭鍏ㄥ睆鍚庣殑)錛屽叿浣撶殑鏂囩珷瑙乭ttp://www2.flash8.net/Teach/5156.htm銆?
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