FLV onMetaData creator DailyMotion metadatacreator DailyMotion hasKeyframes hasVideo hasAudio hasMetadata canSeekToEnd duration @i5\( datasize Ag videosize Abѷ videocodecid @ width @t height @n framerate @9DN~ videodatarate @w{ audiosize AC) audiocodecid @ audiosamplerate @刀 audiosamplesize @0 stereo audiodatarate @W\_A filesize Ag@ lasttimestamp @i5\( lastkeyframetimestamp @i lastkeyframelocation Ag@ keyframes filepositions @ A#w A3I A