Wednesday, January 19, 2011

Encoding used for m2ts for promotional video

C:\Program Files\mplayer>mencoder c:/nada/nada2.m2ts -vf crop=1440:1080:480:0,sc
ale=800:600,yadif -o c:/nada/nada.avi -nosound -ovc lavc -lavcopts vcodec=wmv2:v
bitrate=12000 -speed 2

or without the right-adjusted crop


C:\Program Files\mplayer>mencoder c:/nada/nada2.m2ts -vf crop=1440:1080,sc
ale=800:600,yadif -o c:/nada/nada.avi -nosound -ovc lavc -lavcopts vcodec=wmv2:v
bitrate=12000 -speed 2


if you want sound (note the 1.95 speedup.  not sure what the precise amount is but this works ok for short clips):


C:\Program Files\mplayer>mencoder c:/nada/bryanna.m2ts -o c:/nada/bryanna.mp4 -nosound -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=24000000 -speed 1.95

C:\Program Files\mplayer>mencoder c:/nada/bryanna.mp4 -vf crop=1440:1080,scale=800:600,yadif -o c:/nada/bryanna.avi -ovc lavc -lavcopts vcodec=wmv2:vbitrate=12000 -oac mp3lame -audiofile c:/nada/bryanna.m2ts

Better m2ts video conversion

This one converts to mpg4 first and maintains high quality while it doubles the speed.  Then the video is scaled and has audio added.

C:\Program Files\mplayer>mencoder c:/nada/nada.m2ts -o c:/nada/nada.avi -nosound
 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=24000000 -speed 2

C:\Program Files\mplayer>mencoder c:/nada/nada.avi -o c:/nada/nada2.avi -ovc lav
c -lavcopts vcodec=wmv2 -vf scale=640:480 -vf yadif -oac mp3lame -audiofile c:/n
ada/nada.m2ts

converting m2ts video using mencoder

Had a crazy 1/2 speed video problem when dealing with m2ts video.  had to double the speed, but then that doesn't work with audio.  audio has to be added in on a 2nd pass.  the following has a problem with corrupting the video, though.  -ovc copy is losing data.

C:\Program Files\mplayer>mencoder c:/nada/nada.m2ts -o c:/nada/nada.avi -nosound -ovc lavc -lavcopts vcodec=wmv2 -vf scale=640:480 -vf yadif -speed 2


C:\Program Files\mplayer>mencoder c:/nada/nada.avi -o c:/nada/nada2.avi -ovc cop
y -oac mp3lame -audiofile c:/nada/nda.m2ts