The Wanderer wrote: > Jason Garrett-Glaser wrote: > >> On Sat, Nov 29, 2008 at 8:54 PM, sean darcy <seandarcy2 at gmail.com> >> wrote: >> >>> I'm trying to transcode realmedia .rmvb to x264 mp4 for playing >>> over upnp on a ps3. >>> >>> mencoder input_movie.rmvb -oac mp3lame -ovc x264 \ >>> -of lavf -o output_file.mp4 >>> >>> But then I get this message: >>> >>> ** MUXER_LAVF ***************************************************************** >>> REMEMBER: MEncoder's libavformat muxing is presently broken and can generate >>> INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer >>> will play these INCORRECT files as if nothing were wrong! >>> ******************************************************************************* >>> OK, exit. >>> >>> So if this doesn't work, is there anything that does? >> mp4box? >> >> mp4creator? >> >> ffmpeg? >> >> There are plenty of apps which you can use to mux after encoding... > > Not to mention that the message is only relevant if you are encoding > with B frames; the command line provided does not say to use B frames in > the output video, so unless x264 uses them by default (which I don't > believe it does), they won't be used and the problem won't arise. I shortened the command line: mencoder input.rmvb -oac mp3lame -lameopts aq=2:q=2 -ovc x264 -x264encopts subq=6:partitions=all:8x8dct:me=umh:frameref=5:bframes=3:b_pyramid:weight_b:bitrate=250:pass=2 -of lavf -o output.mp4 taken from the mencoder wiki. > (I also thought this problem was fixed some time ago, but I see the > message is still there in latest SVN, so maybe not...) > And, as I asked in the other post, if libavformat from ffmpeg doesn't work in mplayer, how does it work in ffmpeg? FWIW, both mplayer and ffmpeg are Nov 29 svn. sean
