On Sat, Dec 13, 2008 at 12:29 PM, Jean-Michel Pouré <j...@poure.com> wrote: > On Sat, 2008-12-13 at 18:40 +0100, Mads Bondo Dydensborg wrote: >> My system seems unable to playback mts files in realtime too. > I tried to play these files using ffplay. No success too, they play in > slow motion. Not real time. It is probably impossible to drop frames > because of AVCHD coding. MLT needs to decode all frames.
There are several problems affecting realtime playout of AVCHD: - AVC High and Main profiles are processor intensive to begin with - FFmpeg can not yet use multi-threading to decode most (all?) forms of AVCHD - Those streams are played at half speed by FFmpeg. If you transcode them to something reasonable like mpeg2 or mpeg4 at lower resolution, you will see what I mean. You will notice that 'ffmpeg -i X' on each file will also show double the duration after decoding. I am not yet sure if FFmpeg is misinterpreting something or repeating frames or what is going on. > AVCHD does not seem at hand ... agreed :) > The best would be to ask ffmpeg developers. I think they only want to talk with you if you have started debugging it and have a patch in the works. Otherwise, they will say they know about the problems but not willing to just educate you about them. Basically, you need to do your homework and make a good start into debugging the problem. Maybe a good place simply to get informed is the ffmpeg roundup bug tracker. I am certainly not in a position to start helping ffmpeg. -- +-DRD-+ ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Kdenlive-devel mailing list Kdenlive-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
