youtube 동영상 페이지 fmt_map, fmt_url_map, fmt_list, fmt_stream_map

유튜브 페이지에는 4개의 변수가 존재한다.
일단 이 녀석들을 URL decoding 해주면 아래와 같은 값으로 나오게 된다.

fmt_map은 fmt_list와 내용이  유사하며
fmt_url_map은 fmt_stream_map 과 내용이 유사하다.

아무튼 다운로드 주소를 얻을려면 fmt_url_map / fmt_stream_map 중에 하나에서 빼내면 된다.

fmt_map=22/2000000/9/0/115,35/640000/9/0/115,34/0/9/0/115,5/0/7/0/0&mpu=True&hl=ko_KR&ad_flags=0&rv.5.length_seconds=243&rv.0.thumbnailUrl=http://i1.ytimg.com/vi/lzVFyWNzjtE/default.jpg&rv.7.author=allkpop&cid=11332&rv.1.length_seconds=240&ad_logging_flag=1&rv.2.id=2f5hg3FlYc4 fmt_url_map=22|http://v15.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Cratebypass%2Coc%3AU0dWRVhNU19FSkNNNl9QR1dD&fexp=900023%2C901802&itag=22&ipbits=0&sver=3&ratebypass=yes&expire=1270825200&key=yt1&signature=428B55DAF445D856E5F8A704C91B635776474DC3.B807EF9FE3245923257F82EDCDDD2FB7EFC4CFAF&id=4c66f02fc912a449,

fmt_list=22%2F2000000%2F9%2F0%2F115%2C35%2F640000%2F9%2F0%2F115%2C34%2F0%2F9%2F0%2F115%2C5%2F0%2F7%2F0%2F0&rv.7.id=f5l7jK2m6b4&rv.0.rating=4.70716921455&invideo=True&ad_preroll=1&rv.5.id=uRJYqEhZKCM&tk=zAdQzui_wDTwNyhStGK1_zoZU9rLiWU03xYBllYFMgxwfuh10goLIw%3D%3D&sffb=True&rv.0.id=lzVFyWNzjtE&rv.5.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DuRJYqEhZKCM&ad_channel_code_instream=afv_instream%2Cafv_instream_shortform%2Cafv_instream_shortform_Music%2Cyt_mpvid_AASDybuHG304wiHL%2Cyt_cid_11332%2Cytexp_900023.901802&sdetail=f%3Arelated%2Crv%3AfZsMhQImbhE&rv.6.author=sment&cafe_experiment_id=&sourceid=yw&timestamp=1270802364&rv.0.author=ssfsubs2&rv.3.thumbnailUrl=http%3A%2F%2Fi2.ytimg.com%2Fvi%2Fq_gfD3nvh-8%2Fdefault.jpg&rv.2.author=jilimm&rv.6.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DU7mPqycQ0tQ&ad_host=ca-host-pub-2951559383548001

fmt_map=22%2F2000000%2F9%2F0%2F115%2C35%2F640000%2F9%2F0%2F115%2C34%2F0%2F9%2F0%2F115%2C5%2F0%2F7%2F0%2F0&mpu=True&hl=ko_KR&ad_flags=0&rv.5.length_seconds=243&rv.0.thumbnailUrl=http%3A%2F%2Fi1.ytimg.com%2Fvi%2FlzVFyWNzjtE%2Fdefault.jpg&rv.7.author=allkpop&cid=11332&rv.1.length_seconds=240&ad_logging_flag=1&rv.2.id=2f5hg3FlYc4

fmt_url_map=22%7Chttp%3A%2F%2Fv15.lscache4.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Cratebypass%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26itag%3D22%26ipbits%3D0%26sver%3D3%26ratebypass%3Dyes%26expire%3D1270825200%26key%3Dyt1%26signature%3D428B55DAF445D856E5F8A704C91B635776474DC3.B807EF9FE3245923257F82EDCDDD2FB7EFC4CFAF%26id%3D4c66f02fc912a449%2C35%7Chttp%3A%2F%2Fv23.lscache4.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D35%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3D9E4A6706BFD3FBC5C9BDA3A423B64D11E9F434E0.A6D7CC0412578B649B9E64007395494F332419D9%26factor%3D1.25%26id%3D4c66f02fc912a449%2C34%7Chttp%3A%2F%2Fv12.lscache3.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D34%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3DB106974361DCAFF6C493848F0D70F5F31A47A8A6.CEB0D8D0E755E94318282D1948CF30E30220488A%26factor%3D1.25%26id%3D4c66f02fc912a449%2C5%7Chttp%3A%2F%2Fv6.lscache6.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D5%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3D11B659CD9D93EC969829FCCA08FCBAA4BA67205D.31CD3972FAF986C8D8437A808DDCA0510B9C6E73%26factor%3D1.25%26id%3D4c66f02fc912a449&t=vjVQa1PpcFODyjifvqrM5omZSFTVfJO6nEWVIrXnAZ0%3D&rv.6.id=U7mPqycQ0tQ&rv.6.view_count=12312791&rv.3.author=sment&rv.4.id=x3VeobtGHV4&instream=True&aftv=True&shortform=True&rv.4.author=kpopsubs&rv.7.thumbnailUrl=http%3A%2F%2Fi3.ytimg.com%2Fvi%2Ff5l7jK2m6b4%2Fdefault.jpg&allow_embed=1&ad_host_tier=286075&vq=auto&fexp=900023%2C901802&rv.7.title=SNSD+Chocolate+Love+MV&rv.0.length_seconds=214&rv.2.rating=4.7490430622&shownextbutton=1&rv.1.id=_ElAmVFG2bE&rv.6.title=%EC%86%8C%EB%85%80%EC%8B%9C%EB%8C%80_Gee-%EB%AE%A4%EC%A7%81%EB%B9%84%EB%94%94%EC%98%A4&rv.4.length_seconds=189&rv.3.id=q_gfD3nvh-8&rv.7.view_count=2011417&rv.5.view_count=101834&length_seconds=214&feature=related&enablejsapi=1&rv.6.length_seconds=235&video_id=TGbwL8kSpEk&plid=AASDybuG7053WKMV

fmt_stream_map=22%7Chttp%3A%2F%2Fv15.lscache4.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Cratebypass%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26itag%3D22%26ipbits%3D0%26sver%3D3%26ratebypass%3Dyes%26expire%3D1270825200%26key%3Dyt1%26signature%3D428B55DAF445D856E5F8A704C91B635776474DC3.B807EF9FE3245923257F82EDCDDD2FB7EFC4CFAF%26id%3D4c66f02fc912a449%2C35%7Chttp%3A%2F%2Fv23.lscache4.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D35%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3D9E4A6706BFD3FBC5C9BDA3A423B64D11E9F434E0.A6D7CC0412578B649B9E64007395494F332419D9%26factor%3D1.25%26id%3D4c66f02fc912a449%2C34%7Chttp%3A%2F%2Fv12.lscache3.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D34%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3DB106974361DCAFF6C493848F0D70F5F31A47A8A6.CEB0D8D0E755E94318282D1948CF30E30220488A%26factor%3D1.25%26id%3D4c66f02fc912a449%2C5%7Chttp%3A%2F%2Fv6.lscache6.c.youtube.com%2Fvideoplayback%3Fip%3D0.0.0.0%26sparams%3Did%252Cexpire%252Cip%252Cipbits%252Citag%252Calgorithm%252Cburst%252Cfactor%252Coc%253AU0dWRVhNU19FSkNNNl9QR1dD%26fexp%3D900023%252C901802%26algorithm%3Dthrottle-factor%26itag%3D5%26ipbits%3D0%26burst%3D40%26sver%3D3%26expire%3D1270825200%26key%3Dyt1%26signature%3D11B659CD9D93EC969829FCCA08FCBAA4BA67205D.31CD3972FAF986C8D8437A808DDCA0510B9C6E73%26factor%3D1.25%26id%3D4c66f02fc912a449&rv.1.author=kpopsubs&afv=True&rv.5.rating=4.88620071685&ad_tag=http%3A%2F%2Fn4061ad.jp.doubleclick.net%2Fpfadx%2Fcom.ytpwatch.music%2Fmain_11332%3Bsz%3DWIDTHxHEIGHT%3Bmpvid%3DAASDybuHG304wiHL%3B%21c%3D11332%3Bytexp%3D900023.901802%3Bklg%3Dko%3Bkvid%3DTGbwL8kSpEk%3Bkpu%3Dsment%3Bkt%3DK%3Bko%3Dp%3Bkpid%3D11332%3Bkga%3D-1%3Bkr%3DF%3Bu%3DTGbwL8kSpEk%7C11332%3Bkgg%3D-1%3Bkcr%3Dkr%3Bafv%3D1%3Bkhd%3D1%3Bdc_dedup%3D1%3Bshortform%3D1%3B&ad_video_pub_id=ca-pub-6219811747049371&rv.4.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dx3VeobtGHV4&alternate_video_id=&ad_slots=0&rv.1.rating=4.7219343696&rv.4.title=SNSD+-+Oh%21+%5Benglish+subs+%2B+romanization+%2B+hangul%5D&rv.5.thumbnailUrl=http%3A%2F%2Fi2.ytimg.com%2Fvi%2FuRJYqEhZKCM%2Fdefault.jpg&watermark=http%3A%2F%2Fs.ytimg.com%2Fyt%2Fswf%2Flogo-vfl106645.swf%2Chttp%3A%2F%2Fs.ytimg.com%2Fyt%2Fswf%2Fhdlogo-vfl100714.swf&rv.0.title=SNSD+-+Oh%21+MV+%28en%29&rv.7.rating=4.67304763977&rv.3.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dq_gfD3nvh-8&rv.2.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D2f5hg3FlYc4&ad_eurl=http%3A%2F%2Fwww.youtube.com%2Fvideo%2FTGbwL8kSpEk&rv.3.title=Girls%27+Generation%28%EC%86%8C%EB%85%80%EC%8B%9C%EB%8C%80%29_RunDevilRun%28%EB%9F%B0%EB%8D%B0%EB%B9%8C%EB%9F%B0%29_MusicVideo%28%EB%AE%A4%EC%A7%81%EB%B9%84%EB%94%94%EC%98%A4%29&rv.7.url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Df5l7jK2m6b4&rv.2.view_count=5467712&ad_channel_code_overlay=invideo_overlay_480x70_cat10%2Cafv_overlay%2Cyt_mpvid_AASDybuHG304wiHL%2Cyt_cid_11332%2Cytexp_900023.901802&rv.4.view_count=384184&ad_module=http%3A%2F%2Fs.ytimg.com%2Fyt%2Fswf%2Fad-vfl158567.swf&rv.1.view_count=251780&dclk=True&rv.5.title=Chocolate+Love+%7EThe+ChicLettes%7E+by+%EC%86%8C%EB%85%80%EC%8B%9C%EB%8C%80+Girls%27+generation+SNSD&rv.6.rating=4.73303855677&sk=AN-IBdoG6rDwqBQ2JAmJ7AiKj79qzYtCC&rv.1.title=Girls%27+Generation+-+Chocolate+Love+MV++%5Benglish+subs+%2B+romanization+%2B+hangul%5D&rv.1.thumbnailUrl=http%3A%2F%2Fi4.ytimg.com%2Fvi%2F_ElAmVFG2bE%2Fdefault.jpg&rv.3.length_seconds=208&rv.5.author=ERUJIEproduction&autoplay=0

하지만.. 리눅스에서 wget으로는 다운로드 되지 않는다 OTL

$ wget "http://v15.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Cratebypass%2Coc%3AU0dWRVhNU19FSkNNNl9QR1dD&fexp=900023%2C901802&itag=22&ipbits=0&sver=3&ratebypass=yes&expire=1270825200&key=yt1&signature=428B55DAF445D856E5F8A704C91B635776474DC3.B807EF9FE3245923257F82EDCDDD2FB7EFC4CFAF&id=4c66f02fc912a449" --17:55:02--  http://v15.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Cratebypass%2Coc%3AU0dWRVhNU19FSkNNNl9QR1dD&fexp=900023%2C901802&itag=22&ipbits=0&sver=3&ratebypass=yes&expire=1270825200&key=yt1&signature=428B55DAF445D856E5F8A704C91B635776474DC3.B807EF9FE3245923257F82EDCDDD2FB7EFC4CFAF&id=4c66f02fc912a449 Resolving v15.lscache4.c.youtube.com... 74.125.107.35 Connecting to v15.lscache4.c.youtube.com|74.125.107.35|:80... connected. HTTP request sent, awaiting response... 403 Forbidden 17:55:02 ERROR 403: Forbidden.

2010/02/26 - [프로그램 사용/유튜브 (youtube)] - 유튜브 파일 다운로드 하기(download youtube as file)