Arkadaşlar anlatamadım sanırım.
Sitenin birinde aşağıdaki gibi bir kod var.
<object width="320" height="266" class="BLOG_video_class" id="BLOG_video-292f1ed7cf2672ee" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"><param name="movie" value="//www.youtube.com/get_player">
<param name="bgcolor" value="#FFFFFF">
<param name="allowfullscreen" value="true">
<param name="flashvars" value="flvurl=http://redirector.googlevideo.com/videoplayback?id%3D292f1ed7cf2672ee%26itag%3D5%26source%3Dblogger%26app%3Dblogger%26cmo%3Dsensitive_content%253Dyes%26ip%3D0.0.0.0%26ipbits%3D0%26expire%3D1396366739%26sparams%3Did,itag,source,ip,ipbits,expire%26signature%3D4032A5DED853650EDC580AB395CA7CDA559D58D5.7155C36AB2EEA51070C64E75951277AA451F8764%26key%3Dck2&iurl=http://video.google.com/ThumbnailServer2?app%3Dblogger%26contentid%3D292f1ed7cf2672ee%26offsetms%3D5000%26itag%3Dw160%26sigh%3Dq_vrAYiX7Xo3e6lJirWvrJzBgcU&autoplay=0&ps=blogger">
<embed src="//www.youtube.com/get_player" type="application/x-shockwave-flash"
width="320" height="266" bgcolor="#FFFFFF"
flashvars="flvurl=http://redirector.googlevideo.com/videoplayback?id%3D292f1ed7cf2672ee%26itag%3D5%26source%3Dblogger%26app%3Dblogger%26cmo%3Dsensitive_content%253Dyes%26ip%3D0.0.0.0%26ipbits%3D0%26expire%3D1396366739%26sparams%3Did,itag,source,ip,ipbits,expire%26signature%3D4032A5DED853650EDC580AB395CA7CDA559D58D5.7155C36AB2EEA51070C64E75951277AA451F8764%26key%3Dck2&iurl=http://video.google.com/ThumbnailServer2?app%3Dblogger%26contentid%3D292f1ed7cf2672ee%26offsetms%3D5000%26itag%3Dw160%26sigh%3Dq_vrAYiX7Xo3e6lJirWvrJzBgcU&autoplay=0&ps=blogger"
allowFullScreen="true" /></object>
<a href="rtsp://v5.cache4.googlevideo.com/ChoLENy73wIaEQnucibP1x4vKRMYDSANFEgDDA==/0/0/0/video.3gp" type="video/3gpp"><img width="320" height="266" alt="video" src="http://video.google.com/ThumbnailServer2?app=blogger&contentid=292f1ed7cf2672ee&offsetms=5000&itag=w160&sigh=q_vrAYiX7Xo3e6lJirWvrJzBgcU" class="BLOG_mobile_video_class" id="BLOG_mobile_video-292f1ed7cf2672ee"></a></div>
ben yukarıdaki kodun Youtube linkini bulmak istiyorum. PHP,Javascript,Firefox eklentisi vs heryol kabulümdür.
Editt : Dediğiniz firefox eklentisi ile bu kodla videoyu indirebiliyorum.
Ama bana youtube URL si lazım.
http://r11---sn-nv47en7y.googlevideo.com/videoplayback?id=292f1ed7cf2672ee&itag=5&source=blogger&app=blogger&ip=88.250.131.142&ipbits=0&expire=1396578892&sparams=expire,id,ip,ipbits,itag,source&signature=56AC03F6CF53657BF8A0C24F12F19D66AD00E8DD.6E26AAB659F361B9CA670D45EE452BF2D117984E&key=cms1&cms_redirect=yes&ms=nxu&mt=1394534844&mv=m