$ gnash -vvv http://www.youtube.com/v/9osW_0kFjNQ
3508:1] 16:10:55 DEBUG: Created top level window
3508:1] 16:10:55 DEBUG: gnash_canvas_size_allocate 277 1
3508:1] 16:10:55 DEBUG: Framebuffer pixel format is BGRA32 (little-endian host)
3508:1] 16:10:55 SECURITY: Checking security of URL 'http://www.youtube.com/v/9osW_0kFjNQ'
3508:1] 16:10:55 SECURITY: Load from host www.youtube.com granted (default)
3508:1] 16:10:55 DEBUG: CurlStreamFile 0x10fe700 created
3508:1] 16:10:55 DEBUG: HTTP response 200 from url http://www.youtube.com/v/9osW_0kFjNQ
3508:1] 16:10:55 DEBUG: Movie http://www.youtube.com/v/9osW_0kFjNQ (SWF8) added to library
3508:1] 16:10:55 DEBUG: Plugins path: /usr/lib/gnash/plugins
3508:1] 16:10:55 SECURITY: Extensions disabled
3508:1] 16:10:55 DEBUG: Player Host FD #-1, Player Control FD #-1
3508:1] 16:10:55 DEBUG: Advance interval timer set to 10 ms (~ 100 FPS)
3508:1] 16:10:55 DEBUG: Loading native class MovieClip
3508:2] 16:10:55 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
3508:2] 16:10:55 DEBUG: This SWF uses AVM1
3508:1] 16:10:55 DEBUG: Loading native class MovieClipLoader
3508:1] 16:10:55 DEBUG: Loading native class AsBroadcaster
3508:1] 16:10:55 DEBUG: MovieLoader::loadMovie(http://s.ytimg.com/yt/swfbin/cps-vfl8BB1Y3.swf, _level0.loadClip)
3508:3] 16:10:55 SECURITY: Checking security of URL 'http://s.ytimg.com/yt/swfbin/cps-vfl8BB1Y3.swf'
3508:3] 16:10:55 SECURITY: Load from host s.ytimg.com granted (default)
3508:3] 16:10:55 DEBUG: CurlStreamFile 0x122c9e0 created
3508:1] 16:10:55 DEBUG: Loading native class System
3508:1] 16:10:55 UNIMPLEMENTED: System.security.allowDomain
3508:1] 16:10:55 DEBUG: Global instance list grew to 2 entries
3508:1] 16:10:55 DEBUG: Starting virtual clock
3508:1] 16:10:55 DEBUG: gnash_canvas_size_allocate 640 480
3508:3] 16:10:55 DEBUG: Movie http://s.ytimg.com/yt/swfbin/cps-vfl8BB1Y3.swf (SWF9) added to library
3508:4] 16:10:55 DEBUG: HTTP response 200 from url http://s.ytimg.com/yt/swfbin/cps-vfl8BB1Y3.swf
3508:1] 16:10:56 DEBUG: Loading native class Math
3508:1] 16:10:56 DEBUG: Loading flash.filters package
3508:1] 16:10:56 DEBUG: Loading flash.filters.BitmapFilter class
3508:1] 16:10:56 DEBUG: Loading flash.geom package
3508:1] 16:10:56 DEBUG: Loading flash.geom.Rectangle class
3508:1] 16:10:56 DEBUG: Super has no associated constructor
3508:1] 16:10:56 DEBUG: Super has no associated constructor
3508:1] 16:10:56 DEBUG: Loading flash.external package
3508:1] 16:10:56 DEBUG: Loading flash.external.ExternalInterface class
3508:1] 16:10:56 DEBUG: Loading native class Sound
3508:1] 16:10:56 DEBUG: Loading native class SharedObject
3508:1] 16:10:56 DEBUG: SO name:soundData, root:/
3508:1] 16:10:56 DEBUG: SharedObject www.youtube.com//soundData not loaded. Loading it now
3508:1] 16:10:56 DEBUG: SharedObject path: /home/user03/.gnash/SharedObjects/www.youtube.com//soundData.sol
3508:1] 16:10:56 DEBUG: readSOL: reading property name at byte 31
3508:1] 16:10:56 DEBUG: parsed sol member named 'volume' (len 6),  value '[number:100]'
3508:1] 16:10:56 DEBUG: SharedObject.getLocal returning [object(gnash::SharedObject_as):0x180ae00]
3508:1] 16:10:56 DEBUG: Loading native class XML
3508:1] 16:10:56 DEBUG: Loading native class XMLNode
3508:1] 16:10:56 DEBUG: Loading native class TextFormat
3508:1] 16:10:56 DEBUG: Loading native class TextField
3508:1] 16:10:56 UNIMPLEMENTED: TextField.setNewTextFormat(), we'll delegate to setTextFormat
3508:1] 16:10:56 DEBUG: Loading native class NetConnection
3508:1] 16:10:56 DEBUG: Loading native class NetStream
3508:1] 16:10:56 DEBUG: Loading native class Video
3508:1] 16:10:56 DEBUG: Loading native class Color
3508:1] 16:10:56 DEBUG: Loading native class Mouse
3508:1] 16:10:56 DEBUG: gnash::as_value gnash::<unnamed>::sharedobject_flush(const gnash::fn_call&) enter
3508:1] 16:10:56 SECURITY: SharedObject '/home/user03/.gnash/SharedObjects/www.youtube.com//soundData.sol' written to filesystem.
3508:1] 16:10:56 DEBUG: gnash::as_value gnash::<unnamed>::sharedobject_flush(const gnash::fn_call&) returning
3508:1] 16:10:56 DEBUG: Loading native class Key
3508:1] 16:10:56 UNIMPLEMENTED: MovieClip.filters()
3508:1] 16:10:56 DEBUG: ::pause(0) called 
3508:1] 16:10:56 DEBUG: void gnash::NetStream_as::pausePlayback() enter
3508:1] 16:10:56 DEBUG: void gnash::NetStream_as::pausePlayback() returning
3508:1] 16:10:56 DEBUG: detachAuxStreamer called while not attached
3508:1] 16:10:56 UNIMPLEMENTED: System.security.loadPolicyFile
3508:1] 16:10:56 DEBUG: MovieLoader::loadMovie(http://i2.ytimg.com/vi/9osW_0kFjNQ/hqdefault.jpg, _level0.loadClip.overallHolder.videoPlayer.still.holder)
3508:1] 16:10:56 DEBUG: loadMovie: waking up existing thread
3508:3] 16:10:56 SECURITY: Checking security of URL 'http://i2.ytimg.com/vi/9osW_0kFjNQ/hqdefault.jpg'
3508:3] 16:10:56 SECURITY: Load from host i2.ytimg.com granted (default)
3508:3] 16:10:56 DEBUG: CurlStreamFile 0x1eaa080 created
3508:1] 16:10:56 DEBUG: Loading native class Stage
3508:1] 16:10:56 DEBUG: Loading native class ContextMenu
3508:1] 16:10:56 DEBUG: Loading native class ContextMenuItem
3508:1] 16:10:56 DEBUG: Going to or from scaleMode=noScale. Viewport:640x480 Def:640x480
3508:1] 16:10:56 DEBUG: Global instance list grew to 199 entries
3508:1] 16:10:56 ERROR: No Video info in video definition
3508:1] 16:10:56 DEBUG: Loading native class Accessibility
3508:1] 16:10:56 UNIMPLEMENTED: accessibility_updateProperties
3508:1] 16:10:56 DEBUG: TextField.removeTextField() TESTING
3508:1] 16:10:57 DEBUG: Loading native class Selection
3508:1] 16:10:57 DEBUG: ::pause(0) called 
3508:1] 16:10:57 DEBUG: void gnash::NetStream_as::pausePlayback() enter
3508:1] 16:10:57 DEBUG: void gnash::NetStream_as::pausePlayback() returning
3508:1] 16:10:57 DEBUG: ::pause(0) called 
3508:1] 16:10:57 DEBUG: void gnash::NetStream_as::pausePlayback() enter
3508:1] 16:10:57 DEBUG: void gnash::NetStream_as::pausePlayback() returning
3508:1] 16:10:57 DEBUG: Loading native class LoadVars
3508:1] 16:10:57 SECURITY: Checking security of URL 'http://www.youtube.com/get_video_info?video_id=9osW_0kFjNQ&el=embedded&ps=default&eurl=&hl=en_US'
3508:1] 16:10:57 SECURITY: Load from host www.youtube.com granted (default)
3508:1] 16:10:57 DEBUG: CurlStreamFile 0x1eab8e0 created
3508:1] 16:10:57 DEBUG: Global instance list grew to 207 entries
3508:1] 16:10:57 DEBUG: Global instance list grew to 208 entries
3508:1] 16:10:57 DEBUG: Global instance list grew to 209 entries
3508:1] 16:10:57 DEBUG: HTTP response 200 from url http://www.youtube.com/get_video_info?video_id=9osW_0kFjNQ&el=embedded&ps=default&eurl=&hl=en_US
3508:1] 16:10:57 DEBUG: LoadableObject Loaded 2770 bytes, reaching 2770/2770
3508:1] 16:10:57 DEBUG: LoadableObject reached EOF (2770/2770 loaded)
3508:1] 16:10:57 DEBUG: Loading native class Date
3508:1] 16:10:57 DEBUG: detachAuxStreamer called while not attached
3508:1] 16:10:57 SECURITY: Connecting to movie: http://v4.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Calgorithm%2Cburst%2Cfactor%2Coc%3AU0dYSFZRTl9FSkNNOF9OS1JB&algorithm=throttle-factor&itag=18&ipbits=0&burst=40&sver=3&expire=1293660000&key=yt1&signature=B0C7D7FBFA140E5CF0644ED817A0C163233AF0A0.6BCF9BE95A6387E14D692D52723342A88FA73661&factor=1.25&id=f68b16ff49058cd4
3508:1] 16:10:57 SECURITY: Checking security of URL 'http://v4.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Calgorithm%2Cburst%2Cfactor%2Coc%3AU0dYSFZRTl9FSkNNOF9OS1JB&algorithm=throttle-factor&itag=18&ipbits=0&burst=40&sver=3&expire=1293660000&key=yt1&signature=B0C7D7FBFA140E5CF0644ED817A0C163233AF0A0.6BCF9BE95A6387E14D692D52723342A88FA73661&factor=1.25&id=f68b16ff49058cd4'
3508:1] 16:10:57 SECURITY: Load from host v4.lscache4.c.youtube.com granted (default)
3508:1] 16:10:57 DEBUG: CurlStreamFile 0x1eabd00 created
3508:1] 16:10:57 DEBUG: Parsing FFMPEG media file: format:mov,mp4,m4a,3gp,3g2,mj2; nstreams:2
3508:1] 16:10:57 DEBUG:   Using stream 0 for audio: codec id 86018
3508:1] 16:10:57 DEBUG:   Using stream 1 for video: codec id 28
3508:1] 16:10:57 DEBUG: Starting MediaParser thread
3508:1] 16:10:57 DEBUG: SO name:videostats, root:/
3508:1] 16:10:57 DEBUG: SharedObject www.youtube.com//videostats not loaded. Loading it now
3508:1] 16:10:57 DEBUG: SharedObject path: /home/user03/.gnash/SharedObjects/www.youtube.com//videostats.sol
3508:1] 16:10:57 DEBUG: readSOL: reading property name at byte 32
3508:1] 16:10:57 DEBUG: parsed sol member named 'perf' (len 4),  value '[object(array):0x1896e40]'
3508:1] 16:10:57 DEBUG: SharedObject.getLocal returning [object(gnash::SharedObject_as):0x1896c90]
3508:1] 16:10:57 DEBUG: MovieLoader::loadMovie(http://www.youtube.com/get_video?video_id=9osW_0kFjNQ&t=vjVQa1PpcFM08MfhKMJyf7AZ_ZEqGKmg1nFC_mSKKAI=&eurl=&el=embedded&ps=default&fmt=18&asv=2&noflv=1&tmi=1, _level0.loadClip.junkClip)
3508:1] 16:10:57 DEBUG: loadMovie: waking up existing thread
3508:1] 16:10:57 UNIMPLEMENTED: Rectangle_intersects
3508:1] 16:10:57 DEBUG: SO name:subtitlesModuleData, root:/
3508:1] 16:10:57 DEBUG: SharedObject www.youtube.com//subtitlesModuleData not loaded. Loading it now
3508:1] 16:10:57 DEBUG: SharedObject path: /home/user03/.gnash/SharedObjects/www.youtube.com//subtitlesModuleData.sol
3508:1] 16:10:57 DEBUG: No existing SOL /home/user03/.gnash/SharedObjects/www.youtube.com//subtitlesModuleData.sol found. Will create on flush/exit.
3508:1] 16:10:57 DEBUG: SharedObject.getLocal returning [object(gnash::SharedObject_as):0x1b9fca0]
3508:1] 16:10:57 DEBUG: CurlStreamFile 0x1eab8e0 deleted
3508:1] 16:10:57 DEBUG: Global instance list grew to 243 entries
3508:1] 16:10:57 DEBUG: VideoDecoder: initialized FFMPEG codec h264 (28)
3508:1] 16:10:57 DEBUG: NetStream_as::initVideoDecoder: hot-plugging video consumer
[swscaler @ 0x1e6a000]No accelerated colorspace conversion found.
3508:1] 16:10:57 DEBUG: Global instance list grew to 244 entries
3508:1] 16:10:58 DEBUG: Global instance list grew to 245 entries
3508:1] 16:10:58 DEBUG: Global instance list grew to 246 entries
3508:1] 16:10:58 DEBUG: AudioDecoderFfmpeg: initialized FFmpeg codec 86018 (aac)
3508:1] 16:10:58 DEBUG: NetStream_as::initAudioDecoder: hot-plugging audio consumer
3508:1] 16:10:58 ERROR: outputSize:0 after decoding 240 bytes of input audio data. Upgrading ffmpeg/libavcodec might fix this issue.
3508:1] 16:10:58 DEBUG: pushDecodedAudioFrames(): Decoded audio frame contains no samples
3508:1] 16:10:58 DEBUG: MovieLoader::loadMovie(http://s.youtube.com/s?ns=yt&docid=9osW_0kFjNQ&el=embedded&ps=default&vid=zUmQqyomnmCfIeOlcYEAPXrwvLtOuzL0C&eurl=&hl=en_US&hbd=4237613&hbt=12.613&rt=0.521&plid=AASYjfnfJNXe8IH1&fmt=18&vq=auto&w=640&h=455&len=15&st=0.003&et=0.003&playback=1&fv=LNX%2010%2C1%2C999%2C0, _level0.loadClip.junkClip)
3508:1] 16:10:58 DEBUG: loadMovie: waking up existing thread
3508:1] 16:10:58 DEBUG: Global instance list grew to 247 entries
3508:1] 16:10:58 UNIMPLEMENTED: MovieClip.unloadMovie()
3508:3] 16:11:01 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'
3508:3] 16:11:01 DEBUG: HTTP response 200 from url http://i2.ytimg.com/vi/9osW_0kFjNQ/hqdefault.jpg
3508:3] 16:11:01 DEBUG: CurlStreamFile 0x1eaa080 deleted
3508:3] 16:11:01 DEBUG: Movie http://i2.ytimg.com/vi/9osW_0kFjNQ/hqdefault.jpg (SWF6) added to library
3508:3] 16:11:01 SECURITY: Checking security of URL 'http://s.youtube.com/s?ns=yt&docid=9osW_0kFjNQ&el=embedded&ps=default&vid=zUmQqyomnmCfIeOlcYEAPXrwvLtOuzL0C&eurl=&hl=en_US&hbd=4237613&hbt=12.613&rt=0.521&plid=AASYjfnfJNXe8IH1&fmt=18&vq=auto&w=640&h=455&len=15&st=0.003&et=0.003&playback=1&fv=LNX%2010%2C1%2C999%2C0'
3508:3] 16:11:01 SECURITY: Load from host s.youtube.com granted (default)
3508:3] 16:11:01 DEBUG: CurlStreamFile 0x1a36340 created
3508:1] 16:11:01 DEBUG: Loading flash.display package
3508:1] 16:11:01 DEBUG: Loading flash.display.BitmapData class
3508:3] 16:11:01 DEBUG: HTTP response 204 from url http://s.youtube.com/s?ns=yt&docid=9osW_0kFjNQ&el=embedded&ps=default&vid=zUmQqyomnmCfIeOlcYEAPXrwvLtOuzL0C&eurl=&hl=en_US&hbd=4237613&hbt=12.613&rt=0.521&plid=AASYjfnfJNXe8IH1&fmt=18&vq=auto&w=640&h=455&len=15&st=0.003&et=0.003&playback=1&fv=LNX%2010%2C1%2C999%2C0
3508:3] 16:11:01 ERROR: Can't read file header
3508:3] 16:11:01 ERROR: Unknown file type
3508:3] 16:11:01 DEBUG: CurlStreamFile 0x1a36340 deleted
3508:3] 16:11:01 ERROR: Couldn't load library movie 'http://s.youtube.com/s?ns=yt&docid=9osW_0kFjNQ&el=embedded&ps=default&vid=zUmQqyomnmCfIeOlcYEAPXrwvLtOuzL0C&eurl=&hl=en_US&hbd=4237613&hbt=12.613&rt=0.521&plid=AASYjfnfJNXe8IH1&fmt=18&vq=auto&w=640&h=455&len=15&st=0.003&et=0.003&playback=1&fv=LNX%2010%2C1%2C999%2C0'
3508:3] 16:11:01 SECURITY: Checking security of URL 'http://www.youtube.com/get_video?video_id=9osW_0kFjNQ&t=vjVQa1PpcFM08MfhKMJyf7AZ_ZEqGKmg1nFC_mSKKAI=&eurl=&el=embedded&ps=default&fmt=18&asv=2&noflv=1&tmi=1'
3508:3] 16:11:01 SECURITY: Load from host www.youtube.com granted (default)
3508:3] 16:11:01 DEBUG: CurlStreamFile 0x1929f40 created
3508:3] 16:11:01 DEBUG: HTTP response 204 from url http://www.youtube.com/get_video?video_id=9osW_0kFjNQ&t=vjVQa1PpcFM08MfhKMJyf7AZ_ZEqGKmg1nFC_mSKKAI=&eurl=&el=embedded&ps=default&fmt=18&asv=2&noflv=1&tmi=1
3508:3] 16:11:01 ERROR: Can't read file header
3508:3] 16:11:01 ERROR: Unknown file type
3508:3] 16:11:01 DEBUG: CurlStreamFile 0x1929f40 deleted
3508:3] 16:11:01 ERROR: Couldn't load library movie 'http://www.youtube.com/get_video?video_id=9osW_0kFjNQ&t=vjVQa1PpcFM08MfhKMJyf7AZ_ZEqGKmg1nFC_mSKKAI=&eurl=&el=embedded&ps=default&fmt=18&asv=2&noflv=1&tmi=1'
3508:5] 16:11:10 DEBUG: HTTP response 200 from url http://v4.lscache4.c.youtube.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Calgorithm%2Cburst%2Cfactor%2Coc%3AU0dYSFZRTl9FSkNNOF9OS1JB&algorithm=throttle-factor&itag=18&ipbits=0&burst=40&sver=3&expire=1293660000&key=yt1&signature=B0C7D7FBFA140E5CF0644ED817A0C163233AF0A0.6BCF9BE95A6387E14D692D52723342A88FA73661&factor=1.25&id=f68b16ff49058cd4
terminate called after throwing an instance of 'gnash::MediaException'
  what():  MediaParserFfmpeg couldn't parse input format: tried to seek at negative offset -9223372036853654463.
Aborted
