address@hidden:~$ gnash  -v -M ffmpeg 'http://www.youtube.com/v/QjHCXcwpcvE?version=2'
4094:1] 59 SECURITY: Checking security of URL 'http://www.youtube.com/v/QjHCXcwpcvE?version=2'
4094:1] 59 SECURITY: Load from host www.youtube.com granted (default)
4094:1] 647 SECURITY: Extensions disabled
4094:2] 648 UNIMPLEMENTED: FileAttributes tag in the SWF requests that network access is not granted to this movie (or application?) when loaded from the filesystem. Anyway Gnash won't care; use white/black listing in your .gnashrc instead
4094:3] 649 SECURITY: Checking security of URL 'https://s.ytimg.com/yts/swfbin/player-vflCZrU2E/cps.swf'
4094:3] 649 SECURITY: Load from host s.ytimg.com granted (default)
4094:1] 1583 UNIMPLEMENTED: System.security.allowDomain
4094:1] 1600 UNIMPLEMENTED: TextField.setNewTextFormat(), we'll delegate to setTextFormat
4094:1] 1646 SECURITY: SharedObject '/home/scott/.gnash/SharedObjects/www.youtube.com//soundData.sol' written to filesystem.
4094:1] 1675 UNIMPLEMENTED: MovieClip.filters()
4094:1] 1775 ERROR: No Video info in video definition
4094:1] 1785 UNIMPLEMENTED: System.security.loadPolicyFile
4094:3] 1786 SECURITY: Checking security of URL 'https://i1.ytimg.com/vi/QjHCXcwpcvE/sddefault.jpg'
4094:3] 1786 SECURITY: Load from host i1.ytimg.com granted (default)
4094:1] 1797 UNIMPLEMENTED: accessibility_updateProperties
4094:3] 2186 UNIMPLEMENTED: Requested to keep from completely loading a movie, but the movie in question is an image, for which we don't yet have the concept of a 'loading thread'
4094:1] 19401 SECURITY: Checking security of URL 'https://www.youtube.com/get_video_info?video_id=QjHCXcwpcvE&sts=16027&el=embedded&ps=default&eurl=&hl=en_US'
4094:1] 19401 SECURITY: Load from host www.youtube.com granted (default)
4094:1] 20709 SECURITY: Connecting to movie: http://r12---sn-5uaezney.googlevideo.com/videoplayback?ms=au&sver=3&ip=72.225.47.201&fexp=917000%2C935503%2C914504%2C916611%2C936912%2C936910%2C923308%2C923305%2C936913%2C907231%2C907240&itag=18&upn=_5vvnjo9les&sparams=id%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&mt=1384906540&id=4231c25dcc2972f1&mv=m&key=yt5&expire=1384931337&ratebypass=yes&source=youtube&ipbits=0&signature=19C546F034D32615C1A27DE76FB43AC960143882.88D778FB8935A8B78DF32F5A915562B372E4840F&ptk=montypython&cm2=0
4094:1] 20709 SECURITY: Checking security of URL 'http://r12---sn-5uaezney.googlevideo.com/videoplayback?ms=au&sver=3&ip=72.225.47.201&fexp=917000%2C935503%2C914504%2C916611%2C936912%2C936910%2C923308%2C923305%2C936913%2C907231%2C907240&itag=18&upn=_5vvnjo9les&sparams=id%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&mt=1384906540&id=4231c25dcc2972f1&mv=m&key=yt5&expire=1384931337&ratebypass=yes&source=youtube&ipbits=0&signature=19C546F034D32615C1A27DE76FB43AC960143882.88D778FB8935A8B78DF32F5A915562B372E4840F&ptk=montypython&cm2=0'
4094:1] 20709 SECURITY: Load from host r12---sn-5uaezney.googlevideo.com granted (default)
4094:1] 21458 UNIMPLEMENTED: MediaParserFfmpeg: unsupported whence value 65536
4094:1] 21458 UNIMPLEMENTED: MediaParserFfmpeg seek from end of file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xb1287000] overread end of atom 'stss' by 160 bytes
4094:4] 21459 ERROR: MediaParserFfmpeg::parseNextFrame: Problems parsing next frame (av_read_frame returned -541478725). We'll consider the stream fully parsed.
4094:3] 21503 SECURITY: Checking security of URL 'https://www.youtube.com/ptracking?pltype=contentugc&ptchn=undefined&oid=nBMci7zqiq8vwvBdBNKJcg&ei=af-LUvLqJKrqgAKlv4DYDQ&plid=AATrkLIK9CkRR4Z3&ptk=montypython&video_id=QjHCXcwpcvE'
4094:3] 21503 SECURITY: Load from host www.youtube.com granted (default)
4094:1] 21507 UNIMPLEMENTED: Rectangle_intersects
4094:3] 21951 ERROR: Can't read file header
4094:3] 21951 ERROR: Unknown file type
4094:3] 21954 ERROR: Couldn't load library movie 'https://www.youtube.com/ptracking?pltype=contentugc&ptchn=undefined&oid=nBMci7zqiq8vwvBdBNKJcg&ei=af-LUvLqJKrqgAKlv4DYDQ&plid=AATrkLIK9CkRR4Z3&ptk=montypython&video_id=QjHCXcwpcvE'
4094:3] 21954 SECURITY: Checking security of URL 'https://s.youtube.com/s?ns=yt&docid=QjHCXcwpcvE&el=embedded&ps=default&fexp=907240,907231,936913,923305,923308,936910,936912&hl=en_US&hbd=4350062&hbt=14.046&rt=0.215&plid=AATrkLIK9CkRR4Z3&ei=af-LUvLqJKrqgAKlv4DYDQ&cpn=dYjNnSegnqFxalJf&fmt=18&vq=auto&volume=50&mos=0&pbs=1&idpj=0&ldpj=-31&w=640&h=455&len=247&st=0.001&et=0.001&playback=1&fv=LNX%2010%2C1%2C999%2C0'
4094:3] 21954 SECURITY: Load from host s.youtube.com granted (default)
4094:3] 22382 ERROR: Can't read file header
4094:3] 22382 ERROR: Unknown file type
4094:3] 22385 ERROR: Couldn't load library movie 'https://s.youtube.com/s?ns=yt&docid=QjHCXcwpcvE&el=embedded&ps=default&fexp=907240,907231,936913,923305,923308,936910,936912&hl=en_US&hbd=4350062&hbt=14.046&rt=0.215&plid=AATrkLIK9CkRR4Z3&ei=af-LUvLqJKrqgAKlv4DYDQ&cpn=dYjNnSegnqFxalJf&fmt=18&vq=auto&volume=50&mos=0&pbs=1&idpj=0&ldpj=-31&w=640&h=455&len=247&st=0.001&et=0.001&playback=1&fv=LNX%2010%2C1%2C999%2C0'
4094:3] 22386 SECURITY: Checking security of URL 'https://s.ytimg.com/yts/swfbin/player-vflCZrU2E/ad.swf'
4094:3] 22386 SECURITY: Load from host s.ytimg.com granted (default)
4094:5] 22780 UNIMPLEMENTED: FileAttributes tag in the SWF requests that network access is not granted to this movie (or application?) when loaded from the filesystem. Anyway Gnash won't care; use white/black listing in your .gnashrc instead
4094:5] 22794 UNIMPLEMENTED: LanguageCode (1) in DefineFont tag
4094:5] 22795 UNIMPLEMENTED: Bounds table in DefineFont2Tag
4094:1] 23037 NETWORK: getURL: HOSTFD is -1

(process:4113): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
4094:3] 23190 SECURITY: Checking security of URL 'http://pagead2.googlesyndication.com/pagead/scache/googlevideoads.swf'
4094:3] 23190 SECURITY: Load from host pagead2.googlesyndication.com granted (default)
4094:6] 23336 UNIMPLEMENTED: FileAttributes tag in the SWF requests that network access is not granted to this movie (or application?) when loaded from the filesystem. Anyway Gnash won't care; use white/black listing in your .gnashrc instead
4094:1] 23567 SECURITY: Checking security of URL 'http://pagead2.googlesyndication.com/pagead/yt_blacklist_domains.txt'
4094:1] 23567 SECURITY: Load from host pagead2.googlesyndication.com granted (default)
4094:1] 23700 SECURITY: Checking security of URL 'http://googleads.g.doubleclick.net/pagead/test_domain.txt'
4094:1] 23700 SECURITY: Load from host googleads.g.doubleclick.net granted (default)
4094:1] 23924 SECURITY: Checking security of URL 'http://pagead2.googlesyndication.com/pagead/ads?withpyv=true&unviewed_position_start=1&image_size=480x70,468x60,450x50&videoad_start_delay=1&video_doc_id=yt_QjHCXcwpcvE&flash=10.1.999&frm=0&u_tz=-300&dt=1384906605308&u_asa=0&dblk=1&hl=en&ht_id=4118093&host=ca-host-pub-5783882756792254&output=xml&ad_type=text_staticimage_flash&channel=invideo_overlay_480x70_cat23+afv_overlay+Vertical_36+Vertical_182+Vertical_211+Vertical_358+Vertical_613+Vertical_1047+Vertical_1095+afv_ugc+yt_mpvid_AATrkLIK67lSW23V+yt_cid_7624+ytdevice_1+ytps_default+ytel_embedded+Overlay&num_ads=3&url=http%3A%2F%2Fwww%2Eyoutube%2Ecom%2Fvideo%2FQjHCXcwpcvE&client=ca-pub-6219811747049371&correlator=446428308353659189&video_product_type=5&sdkv=0'
4094:1] 23924 SECURITY: Load from host pagead2.googlesyndication.com granted (default)
4094:1] 24579 NETWORK: getURL: HOSTFD is -1

(process:4121): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
4094:1] 24722 UNIMPLEMENTED: MovieClip.unloadMovie()
4094:3] 24736 SECURITY: Checking security of URL 'https://www.youtube.com/player_204?sst=10&at=2_1&slots=sst~10;at~2_1&allowed=2_1,2_3&ex_ads=2=1_2,2_2;3=1_1,1_2_1,1_3,2_2_1&len=247&mt=0.001&cid=7624&ps=default&el=embedded&art=1.7&event=ad&plid=AATrkLIK9CkRR4Z3&ei=af-LUvLqJKrqgAKlv4DYDQ&v=QjHCXcwpcvE&ad_flags=1&ad_event=1'
4094:3] 24736 SECURITY: Load from host www.youtube.com granted (default)
4094:3] 25268 ERROR: Can't read file header
4094:3] 25268 ERROR: Unknown file type
4094:3] 25272 ERROR: Couldn't load library movie 'https://www.youtube.com/player_204?sst=10&at=2_1&slots=sst~10;at~2_1&allowed=2_1,2_3&ex_ads=2=1_2,2_2;3=1_1,1_2_1,1_3,2_2_1&len=247&mt=0.001&cid=7624&ps=default&el=embedded&art=1.7&event=ad&plid=AATrkLIK9CkRR4Z3&ei=af-LUvLqJKrqgAKlv4DYDQ&v=QjHCXcwpcvE&ad_flags=1&ad_event=1'
4094:1] 138548 SECURITY: SharedObject '/home/scott/.gnash/SharedObjects/www.youtube.com//soundData.sol' written to filesystem.
4094:1] 138549 SECURITY: SharedObject '/home/scott/.gnash/SharedObjects/www.youtube.com//videostats.sol' written to filesystem.